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GPU Reflow Do's & don'ts

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John G

John G

Күн бұрын

GPU Reflow Do's & don'ts

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@poptartmcjelly7054
@poptartmcjelly7054 7 жыл бұрын
This video does have a lot of don'ts, but not many do's. When manufactured the board goes through a reflow oven, yes - an oven. the SMD components are manufactured to withstand up to a certain temperature with minimal damage, that temperature is called the relow temperature, that's the temperature at which the solder melts. Applying heat only to the GPU area will cause that area to expand and will make the board bow up. I do my reflow repair with an oven, in a controlled manner, of course, and thus far all of them worked out and are still working to this day. Heck, the laptop that i'm using right now would be dead if not the oven reflow. Since motherboards have many copper layers in them they do conduct heat away from the GPU making it hard to reflow, this can cause frustration and overheating of the BGA fiberglass substrate, which will bubble up and destroy all chances of repair without replacing the chip. Motherboards will bow in the oven only when they are poorly supported. Solder surface tension is plenty enough to hold the bottom components in place, the board needs to be above any surface when reflow soldering in the oven, components are easy to knock off when solder is molten. Any batteries must be removed from the board as they will blow up in the oven and possibly knock all of the components loose if the temperature is high enough. Flux is not necessary when reflowing, the solder fractures are microscopic and will get quickly soldered back together once reflow temperature is reached. Talking about the temperature, it is crucial that care is taken when oven reflowing, too cold and the board won't reflow, too hot and the board will bubble up and components will start blowing up. The oven cannot the used for food after oven reflow, this is why it's not popular to do so. The laptop i'm using right now does get alot of abuse, i push it to it's limits and keep it there for as long as i want, so far it has been performing very well with no issues what so ever. This comment is long as it is, i could make it much longer but i won't. TL:DR - this video gives bad advice, don't take it for granted.
@johng6673
@johng6673 7 жыл бұрын
Poptart McJelly , it's a lot of what not to do, as I get so many repairs where someone has attempted to repair the boards themselves. Placing a board in an oven is never recommended, as to melt the solder on the chipset, in an oven you heat the whole board and you can un-solder other components, melt any plastic, and capacitors never like high heat. That is why I will only recommend the correct way, which is with a reflow machine. The back side needs to be heated to 120f, and set top to at least 475f, depending on the solder used, and for about 4mins 30 seconds, again depending on the solder. And make sure to use a quality Flux, alcohol based is best for a clean application. I've been doing reflows for 10 years now with a high success rate and have seen just about every form used. If you can't afford to pay someone, or don't really care about the results, you can use any method of choice, even just putting a penny under the heat sink can apply enough pressure to work for a while.
@poptartmcjelly7054
@poptartmcjelly7054 7 жыл бұрын
I guess in the end it's what ever works. and is most practical in a given situation. I have received laptops that were dead and were said to be un-fixable by the repair shop, only to find out that the blue soldermask had turned green under some of the chips, which are obvious signs of an attempted "reflow". 30 minutes later that same laptop will be sitting on my desk, working like new, all thanks to my oven. So far i've only had one failed reflow, which was not only my first try but it was also on my own laptop. I was too careless and allowed the oven to get too hot making the board sound like popcorn. Since that incident i take care with my reflows, always on standby, ready to shut the oven off when the temperature is right. SMD parts also include connectors and electrolytics, they are all made to withstand the reflow and they all have datasheets for recommended reflow temperature curves, the only things that can be damaged by a reflow on the motherboard are stickers, RTC clock batteries, sponge spacers and felt ( mostly found in ACER laptops over the buttons ).
@johng6673
@johng6673 7 жыл бұрын
Poptart McJelly, You can say what works, as I have seen a lot of ways that have worked. But from a professional standpoint, and I've been working with the best in the area, and I've know as one of the best laptop specialist in the area, I can only promote the correct way which is with a reflow machine. I won't condone with others wishes, as I know how I take apart a laptop is different from how someone else might, I may use a different brand of tools, and people choose their own vehicles, and it's not for me to judge. I have been HP and Dell certified, and working with high end clients, I only promote what is correct for the clients. I know when a new board is better than reflowing, and I know when a reflow is just as good and hundreds cheaper. If someone is highly dependent on their system, it's not always worth the risk, and replacement is the correct means. I only use solid copper shims, and I guage them accordingly. I use high end thermal past that doesn't dry as quickly, clean the entire cooling system and I have 2 types of Flux I use depending on the board. Thanks for commenting and I wish you the best.
@leroijr407
@leroijr407 Жыл бұрын
The reflow so called experts dont want the competition. I saved numerous TVs and Xboxes from death. To last years later from my house oven. They don't want you to do that because they lose money. Seriously. Think about it. Its obvious it works, but THEY say dont do it? Come on people. Your smarter than that. My oven fixed what a shop couldn't on a Sony tv. One of the first 4k that was like 3000 new. They couldn't fix it, but then asked me to buy it from me. 🤣🤣. Needless to say my oven worked like magic. Dont pay the ridiculous amount for a reflow they want to charge. These TVs now days are not expensive.. Try to fix yourself, it will last a bit. Then save for a new top end model year. Bet you your oven will last as long as their repair anyways. 10 years or 30 years reflowing, idc. . truth is truth. Ovens work. And it's free.
@kittykittylicization
@kittykittylicization 6 жыл бұрын
"Dont repair your engine yourself, you could break it in the process.." well no shit. You have to know your market man. If you charge $40 to reflow a $60 GPU no one is going to do it. Considering GPUs last a couple years even a $200 gpu brand new is only going to be worth about $50 by the time it breaks. Thats why these methods exist, if you could just take it to the GPU Fixer store for $20 no one would dream of doing it themselves. If you wanted to help people tell them how to improve at home methods. Not just "Dont do anything but take it to my store"
@bigun89
@bigun89 2 жыл бұрын
This comment didn't age well.
@kondor99999
@kondor99999 4 жыл бұрын
I rescued my notebook GPU using the heat gun method and it's still running fine 2 years later. 99% of the time with these things, it's an old piece of equipment that isn't worth investing a lot of money into. If it works, it works. If it doesn't work, well - It wasn't working to begin with.
@zazarays
@zazarays 4 жыл бұрын
I concur
@South_0f_Heaven_
@South_0f_Heaven_ 2 жыл бұрын
Same Used to buy/repair/sell broken laptops and the method I came up with had at least a 80% success rate. Just tried a reflow for the first time on a GTX 1070, haven’t done any in years and the GPU works great. What’s not mentioned in the video is the correct way is to remove and replace with a new video chip but in this current overpriced and unavailability market people have to use whatever method works for them.
@EllieLight1
@EllieLight1 9 жыл бұрын
Don't do this, don't do that, and definitely do not do it that way. Very unhelpful.
@johng6673
@johng6673 9 жыл бұрын
I made the video as a test, but also informational. Yes it's a lot of don't do this or that, but all the methods mentioned are what I hear a lot of shops doing and they all can cause many problems. Their is only one real way, which is the correct way with the machine designed for the job. How many ways do you dig a hole in your backyard 18 wide 24 inches deep? Not with a cup, not with a spoon, but the right tool such as a shovel. This is only to help let people know why to stay away from bad methods when re-flow machines start at $200 and the preferred one is about $800. If you are going to be doing this for a business, just by the machine. 10 boards and it's paid off.
@EllieLight1
@EllieLight1 9 жыл бұрын
John Gebman I did it the wrong way like I always do when the GPU replacement is not an option or too expensive. Disassembled. Cleaned with alcohol. Used foil tape around the GPU to protect all the other components. Sandwiched the back of the board against flexible closed cell foam to keep any components from loosening. Ran a heat gun at max for 90 seconds moving constantly. Allowed it to cool. Untaped and cleaned up with alcohol. Re-assembled with good heat sink compound. Works like a champ. Been several months and no complaints. Luck? Perhaps. But I've done it several times (maybe 10+) and everyone still seems very happy. But no guarantees. BTW. The best way to dig a hole in these here parts (NC Coast) is with a jet of water, not a shovel. You can dig down 8 feet in about 15 minutes.
@Smithy318i
@Smithy318i 9 жыл бұрын
Utter BULLSHIT ! An expensive machine is NOT required. I reflow GPU's with a heat gun.
@FeroxX_Gosu
@FeroxX_Gosu 8 жыл бұрын
Yesterday my MSI HD6850 got bad, and did the green vertical lines problem even in the BIOS no matter how many times I've tried or how much the GPU was cooled down. I've tried a simple re-silicone pasta method but that did not work it was permanently damaged. I never did GPU cooking, and I was skeptical, cuz i was afrad of the things you've said in this video, that everything could become loose, warped, and be damaged if you put it in the oven, cuz the heat is all over the place (Im a BSC graduate on engineering). So I searched on google, and found out that the hair dryer method is the least risky for me, because I could focus the heat only on the GPU. So I've took my girlfriends 1400w Philips hairdryer, got rid of the fan and cleaned off the badly dryed out (ouch!) silicone pasta with her nail polish remover aceton (what would I do without my precious gilrfiend?? lol). After that I positioned the hairdryer on the GPU close up about 3-4mm distance, and shoot it on max heat setting for about 10-12 minutes (I didnt count the time..). I've read on forums that people are sceptical about hairdryer methoud cuz it doesnt generate enough heat for the melting points, saying that they couldnt even get it up to 100 Celsius, but I can confirm that it did go above 100 Celsius cuz I've poured a water drop on the socket and it evaporated instantly. I let it cool down for about 5-6 minutes, and after that I put on new silicone pasta, put on the fan and took it back into the PCIe slot of my motherboard. And to my astonishment, it did work! No green lines, Its stable since 1 day, no problems yet :) So I just wanted to share my story with you guys.
@johng6673
@johng6673 8 жыл бұрын
I am glad it worked for you. Thanks for commenting. The dangers of using a hair dryer is while it seems focused on the GPU, the extra air has to go somewhere. That hot air blowing sideways is dangerous to the surrounding components. Just to let you know as well, 100 degree Celsius is only half the temp that low temp solder will melt at. 240 to 270 degrees Celsius is where you want the temp, but not with blowing heat as it will blow off the small caps and resistors on the chipset. If you could focus the heat on the die or under the chip, it could work. On this card, I believe it should have a heat spreader on the chipset so the capacitors would be covered up and protected from blowing air. A high temp air gun can be purchased at Walmart for removing paint. This might get to the right temp, but you would have to use something to protect the surrounding components. Maybe a damp towel and foil , I don't know, I've never tried it that way. It actually may be better to remove any plastic, the fans and leave the heat sink on and heat just the heat sink with the hot air gun to protect the board from the blowing air. you would need at least 270 to 375 degrees Celsius for around 7 to 10 minutes to get the solder to melt, but it also my not heat all the pins on the chip. I only charge $60 plus shipping for reflows, so if you want to keep the card, reflowing may be the way to go. Thanks for the info and I'm glad it worked for you. John
@PwnZombie
@PwnZombie 5 жыл бұрын
Mate that’s almost word for word what I did!
@brenty4110
@brenty4110 2 жыл бұрын
If you are using foil on the board and then using a heat gun properly, the small componets falling off isn't a real problem unless you are using WAY TOO MUCH heat. Here's a DO that wasn't mentioned. Analyze the board that you are reflowing at home, and look for reasons as to why you need to do a reflow in the first place. If you didn't have a bad fan or cooling system and if the problem is common enough, then you likely have a tiny design malfunction that you might be able to remedy which will make your reflow actually last. Although sometimes, you just get a board with a little less solder than most other people (badluck). I'd recommend home users to read my solution below regardless though, since it could help with both situations. The most common design flaws I encounter, are boards not being 100% level, (screw stand offs being too high or low) or missing back support behind the BGA. If there is no support beneath the BGA you are repairing, then this could be the cause of your problems. Many companies don't add this when a device is only designed to work for a few years. The reason you want support behind the BGA, is so that small degrees of warping are prevented from occuring over time from the heating and cooling of the board during normal use. When the BGA has good enough support behind it, it will keep the area directly behind and around the BGA flat, even when the board heats up to higher than normal temperatures. This warping over time is typically the main cause for this to happen to devices that run hot regularly (example: graphics cards, soldered CPUs, soldered RAM chips, etc). An excellent cheap at-home solution that I came up with in my garage 12 years ago, is to make cardboard cut-outs that are just slightly larger than the BGA, and cover those completely with electrical tape, and then adher it to the chasis directly behind the BGA for the board to rest on (make sure it's thick enough to fill the space and make contact with the board, you can also stack additional cut-outs on top of each other). I also sometimes use shipping foam cut outs (example: styrofoam) but cardboard from moving boxes have also served me very well, usually at least two cut-outs stacked. I typically make them just thick enough to where they slightly use more space than is available between the back of the board and the chasis. When the board is mounted/installed again, the pressure from that will flatten the cardboard to the perfect amount automatically. A professional engineer or shop will tell you that I am crazy. They would also tell you to spend $100s to completely replace the BGA instead. For anyone at home that wants a free solution, this is usually it. Oh, and make sure to get just a little melted flux under the BGA where the solder joints are (look up examples on KZfaq), this will help a ton, almost like magic. If you can't afford some electrical flux, you can use a little petroleum jelly instead. Just don't use plumbing flux; it's too strong and will degrade the board later.
@benyoung8025
@benyoung8025 8 жыл бұрын
Well the best way is to bring the computer to vendor for a repair services!!! Another way is buying a new graphic card and replace it, but that will involved risk of not putting it right as well! Unless you wanna open a shop for reflowing the chips, otherwise the $230 might cost twice more than a new graphic card.
@johng6673
@johng6673 8 жыл бұрын
Yes, that is why I published this video. I've been doing reflow work for 10 years when the DV Series came out with the gpu issues. Replacement is always the best option and that is what I promote, but some just don't want to pay the high cost of some boards. When it's cheaper or close to the same price, new replacement is always what I push.
@FernandoCarpio
@FernandoCarpio 9 жыл бұрын
Thanks this video was very helpful! It helped me to know what not to do.
@shanetune1
@shanetune1 9 жыл бұрын
First off,you should change the title,as there are no "do's", second, If someone comes across this looking for reflow instructions it's because they don't have $600! Why anyone that doesn't have a business repairing electronics would spend that much on a reflow machine is completely beyond me! I've used the heat gun method half dozen times on my old ps3(fat) alone and spent a grand total of about $40 or so (on thermal grease,Arctic 5,if anyone's curious) then there's my old Sony Vaio,which is working 100% because of the heat gun method! (Bought both in 2008! ps3 still games and laptop still fine for internet browsing,and older games) For $600 I could just get a new ps3(or 4) and have plenty left over! ...or a cheap laptop,maybe use it as down payment on new(ish) laptop! Thanks for the "Captain obvious" tips though You mean I shouldn't stick my MB in the oven @ 350+ Degrees?!?.
@j.lietka9406
@j.lietka9406 3 жыл бұрын
Stick it in the oven?! Ah, no! Will using thermal paste/clay protect the nearby components? Use a torch?! Nope! Just a heat gun!
@insist-itllc6627
@insist-itllc6627 8 жыл бұрын
I mentioned the torch since I have actually seen small torches used. They put foil around the board and hit the die with small torch. I couldn't believe it, but you can also find KZfaq videos with people using a torch.
@ChainsawChody
@ChainsawChody 9 жыл бұрын
Thanks for the video man! I was about to grab the heat gun and go for it, but this was very helpful to know what risks are involved.
@j.lietka9406
@j.lietka9406 3 жыл бұрын
If you do a proper, safe, controlled reflow, is it a good idea, after the board is cooled down, to replace the corner sealant? Might do a controlled reflow on a laptop m/b, but taking precautions, & not sticking it in an oven! Thanks
@FroztiProductions
@FroztiProductions 7 жыл бұрын
A lot of cautionary tips that would be helpful for someone who doesn't want to ruin their gpu. However a lot of people doing this are doing it on a cheap or older card, where paying a repair service would cost more than replacing the card.
@johng6673
@johng6673 7 жыл бұрын
FroztiProductions I gave the don't for those that can't afford to replace their devices. If you use the wrong method, their is a greater chance of permanent damage that is irreversible, or damage to other components resulting in full replacement versus just doing the correct repair from the beginning. Of course there are short cut ways, but the ones I mentioned have had a higher fail rate than success when done at the proper temp. Most that perform the lesser methods usually work not because it worked, but because the added paste or copper puts more pressure on the chip causing the leads to make contact, not because it actually worked. It takes over 400 degrees Fahrenheit to melt the solder, doing this incorrectly melts the surrounding solder and anything plastic around the area as well. If you are truly on a tight budget and can't spring for the $60 to repair it correctly, you can spend about $30 or so using a 140watt light bulb, cardboard, aluminum foil, a temp gun and flux. But the reality, if you can't afford to spend the extra $30, you probably need to re-consider a few other things. $60 is not a lot to do it correctly. Well if I do it and you are not around, $60 + shipping. A new video card can be as cheap as $27 at a local store and most motherboards range from $40 to $140. So these may be better options than frying a board, just put that money towards a replacement.
@jos9072
@jos9072 8 жыл бұрын
Just have baked the gtx 780 ti, And it works
@johng6673
@johng6673 8 жыл бұрын
+BarbaPapa * As with any method, it's possible. Otherwise they would never have been posted. Baking at the correct temp to melt solder would mean melting anything plastic, and any components on the bottom would fall off due to gravity. Other components can move or end up with a cold solder joint, so that is why this is one of the worst ways to get them to work. Usually what happens is they are heated just enough to warp the board, and then by re-seating the heatsink, it puts enough pressure to work. Again, this CAN work, but the correct method is the correct machine for the job. You wouldn't use a crescent wrench, pliers, or vice grips to remove the lug nuts of a tire, but it can work if the right tool isn't available. Their is always options that can work. I can only post the correct way so if any other method fails I cannot be at fault. Also, I manage a high end professional shop, and we only perform correct and legit repairs, so I will only promote the correct way to do things. Thanks for your response.
@christianjohnplacido8927
@christianjohnplacido8927 2 жыл бұрын
What if my gpu is already reflowed,it can be reflow again?
@johng6673
@johng6673 2 жыл бұрын
Yes. As long as both are done correctly. Caution needs to be given, as if a second one is needed, it's possible the chip can be warped or the solder is bad and needs to be reballed. But I have done as many as 3-4 for laptops under extreme use. I always recommend after the 2nd just replace the chip or board since usually damage is causing the excessiveness of repair requirements. Make sure proper shims are used if needed, a good paste, and the cooking system is cleaned.
@frankthots679
@frankthots679 6 жыл бұрын
Are you doing a part 2 video for the DO's? B'cuz all I've learned in this video is that I should buy a new GPU and inflate the prices for John Gebman.
@johng6673
@johng6673 6 жыл бұрын
Frank Thots Not sure how it inflates prices for me. I have no part in that. The main reason for the video is all the wrong methods. And in the video, it doesn't say, only to purchase a new board, it says a Reflow machine or reball machine should be used for repairs, and if you don't have one, access to one, or don't know how, then the best option is replacement. None of the options cause any inflation, and unless I do the work, none of the options provide any funding for me. Now, I can do a part 2 video, but I still won't show what I do for two reasons, liability, and I have a method that very few people do, so I keep myself as being one of very few that do this method which ensures m my success.
@Franklin-fp9nk
@Franklin-fp9nk 2 жыл бұрын
Hi man, i see this clip was posted long time ago so propably u won´t be relpying to me but i still have to ask, do companies like Asus reflow broken GPU´s when they r sent back to them under warranty?
@South_0f_Heaven_
@South_0f_Heaven_ 2 жыл бұрын
Can’t agree with a lot in this video. For starters a proper reflow station is a lot of money, also the correct way is to either remove the chip and reball or better yet replace with a new video chip. I had a reflow station, it was a pain to use and did not have the flexibility of a heat gun either. I’ve repaired over a hundred laptops using a heat gun and method that I developed successfully so saying a heat gun won’t work just isn’t true. Your not going to blow any surface mount components off the chip or surrounding area either. When properly insulated with aluminum tape there is zero risk to any other components. Just did a 1070 GPU last week, first time doing a GPU and it’s still working great. Cool temperatures and hasn’t skipped a beat thru multiple stress tests either. On the subject of copper shims vs thermal pads that is dependent on the application. Some chips you cannot use copper shims and it’s also critical the thickness of the copper shims as well. If you don’t use the correct size then you risk damaging any repair that has been done since copper, silicone and solder all expand/contract at vastly different temperatures. Also not mentioned in the video is reflowing a GPU is not a one size fits all repair either. The GPU has to exhibit very specific symptoms to even attempt a reflow, lot of other components fail it’s not always the video chip itself.
@johng6673
@johng6673 2 жыл бұрын
So, this video is old. And more for the era. Now, if you're heating the chip enough to melt the solder, you're also heating up the solder on the chip for the caps and resisters. There is a good chance of those falling off. Now, if someone doesn't have the proper equipment, they shouldn't be attempting it. Many things can go wrong. And those that have a machine, you can get one as low as $300, with a decent one for $600. And yes, removing the chip is always the best option as long as you have a template to reball it. Outside of that, in most cases reflowing the chip is good enough. And of the tens of thousands I've done, I can say not just experience, but what you learn in school is accurate. Infrared is superior to all other options. Now, you can use hot air for chips without the caps or resistors just fine, and in face that is what I use for BIOS chips or even GPU chips and CPU chips like Intel's. If it works for you, than I'm glad you found a way that works. Although I cannot recommend any method that could lead to failure. Imagine if I said "Use a hot air work station" and someone damaged their chip by blowing off a cap? I would be receiving a bill to fix it for recommendations that caused damage. And yes, I've blown a cap off verifying if I was accurate with my claims. So making any recommendations that have a small possibility of failure, I cannot support in a video. I can only support actual correct repairs.
@johng6673
@johng6673 9 жыл бұрын
I'm sorry you feel the video doesn't meet your expectations. The "Do's" is to use a machine. I won't show a video that could potentially cause catastrophic failure as I would become the responsible party for any damages. A $230 machine will work, but like you stated, a lot of people are simply trying to fix it themselves without spending a lot of money. It is only an opinion, but my opinion is if you can't afford to buy the correct equipment to fix it, then take it to a shop that does have the correct equipment and have them repair it. most will repair it for $60 to $80 and have the correct machine. If you are going to spend $40 for a heat gun and attempt to fix a reflow issue that you have a greater chance of ruining permanently, than my opinion would be to have it repaired correctly for the extra $20 to $40 and you won't have to worry about any mistakes. I know I give a warranty with my repairs as well, so that tiny bit extra comes with that piece of mind that it was done correctly and will continue to last longer. Using any other method besides the correct me method comes with risks and no guarantee that it will last at all, and my need to he repeated regularly.
@deliomendoza2424
@deliomendoza2424 6 жыл бұрын
a dead graphics card is a dead graphic card you will lose nothing unless do this on working one. lots of people fix those dead gpu out from the oven what can say about that a miracle?
@hunzhurte
@hunzhurte 3 жыл бұрын
Well if it's just your opinion then why didn't you put it that way?
@johng6673
@johng6673 3 жыл бұрын
@@hunzhurte it's not necessarily opinion. I've been trained and working with electronics including soldering in bulk for 34yrs. Working in the industry, I have seen many ways people use to fix the issue. Their is the correct ways, and then ways that work by chance.
@SuperAjej
@SuperAjej 9 жыл бұрын
Wow great help . Smh tell how to do it then !
@johng6673
@johng6673 9 жыл бұрын
The best way is to use a reflow machine. set the bottom temp between 120 degrees Fahrenheit to 140 degrees Fahrenheit. Then set the temp for the IR lamp from 475 degrees Fahrenheit to 825 degrees Fahrenheit depending on the type of solder. Most laptops 475 degrees is sufficient. Dells usually need a higher temp closer to 675 degrees. I usually time it at 5 mins, but I let the boards sit for 20 mins before I remove it to allow for a slow good set. One big important tool is also to use the right type of flux to get a good solid solder. I also use a heat shield to make sure nothing but the chip set is heated even though the IR lamp has it's own. I take extra precautions as I'm working on someone else's investment and I don't want to break what I'm trying to fix.
@ChainsawChody
@ChainsawChody 9 жыл бұрын
+John Gebman Having this issue with my gf's laptop. What's the best technique if I don't have access to a reflow machine?
@darattaqwa
@darattaqwa 3 жыл бұрын
With this fault will it give external vga out display? My dell laptop is black screen but gives external display, the lcd and lcd cable are definitely working
@johng6673
@johng6673 3 жыл бұрын
Usually if you have external, it's a bad LCD panel, cable, or motherboard issue. The GPU would completely fail if it's a broken pin issue
@Julian_Bester
@Julian_Bester 3 жыл бұрын
I get not what to do.. But now tell me what to do
@sogeking6680
@sogeking6680 3 жыл бұрын
Here after my GPU died in this terrible times
@johng6673
@johng6673 9 жыл бұрын
I never said an expensive machine was required, but a good $600 machine will guarantee the success of the reflow. A heat gun is the second worse things g you can use, as the heat required to do the job correctly would mean the airflow across the top of the GPU will melt the solder that holds the caps to the top of the chip set and the air will dislog the caps. Many people have success using all types of methods, I am only giving instructions on how to perform the actual fix with little to no permanent damage , not a work around that may or may not work, and if it fails, cause what could be catastrophic damage if the wrong components get damaged from hot air in the wrong place. I worked with a shop that used a hot air gun as the fix, that is how I first learned of what damages the air can cause. But if it works for you, I'm glad to hear.
@giannisgrgaming
@giannisgrgaming 9 жыл бұрын
+John Gebman I reflow a asus striker extreme board that dint turn on at all , by butting hot coal from the fireplace under the chips and lifting the board 3-4 cm from the coal and it worked .. it come on without a problem
@johng6673
@johng6673 9 жыл бұрын
Haha. Never heard that before. Their may be success with almost any way of heating the chip, but all come with risks unless done correctly. Hot air can blow other components off the board, but does get to the right temp with the right equipment. Flames get to the right temp, but can warp the chip and also knock off other components. Ovens I hear a lot of success, but yet that is the most dangerous for a lot of reasons, but I do hear it works. How ever you heat the chip may work, but again the only true way to successfully correct the issue is to use the equipment designed to re-flow the chip by directing the correct amount of heat to just the chip set and to preheat the board so their is a better solder connection.
@fugeeohu9357
@fugeeohu9357 5 жыл бұрын
Let's say I was doing it with the hot air wand, how would I know I'm doing anything right, is there a point where I can see the solder flow? Let's say I flux all around and then heat the chip Do I ever get to see solder flow?
@johng6673
@johng6673 5 жыл бұрын
Using a hot air and flux, if you could get the entire chip hot enough which is very hard with a GPU that's why it's not done that way. And if you got the chip hot enough to move, all the caps and resisters on the top of the chip would also be loose from the heat and their is an extreme risk the air would blow them off. A hot air wand is used to remove chips without resisters or caps attached to the top. But you know when the chip comes loose when it starts to wiggle in the flux.
@fugeeohu9357
@fugeeohu9357 5 жыл бұрын
@@johng6673 What if I hold a soldering iron to the top of the chip until solder starts to flow
@johng6673
@johng6673 5 жыл бұрын
@@fugeeohu9357 you don't get even heat distribution and you will kill the chip from overheating it
@fugeeohu9357
@fugeeohu9357 5 жыл бұрын
@@johng6673 How does the expensive machine do it?
@johng6673
@johng6673 5 жыл бұрын
@@fugeeohu9357 even distribution of infrared head controlled from both the bottom and top with a controlled tip and possibly a suction tip
@yarazar
@yarazar 9 жыл бұрын
Nice video, but I doubt anyone's gonna buy a 600$ machine for that 1 or 2 reflows they'll ever do, if you constantly have to do something like this then yeah a machine is prob the best solution. I just did my first reflow today with an old GTX 260, what I did is put it underneath my microwave oven grill for about 7-10 minutes and it works again now.
@youtardztventertainment8182
@youtardztventertainment8182 3 жыл бұрын
That’s why everyone shows videos of fixing theirs in here? And you say don’t do it unless you gave the correct machines? Well we want it done for free without buying machines, especially when it’s just to get back up and running on a crappy pc
@johng6673
@johng6673 3 жыл бұрын
Well, those methods without the machine cause not only bad results, no results or worse, people don't realize by sticking boards in their ovens, it releases Lead into their stove along with other chemicals which they end up cooking with later. And this still doesn't fix the issue. I can understand not wanting to buy a machine, but their are many alternatives. Getting it repaired by someone with a machine, or replacing the motherboard. If free is all you're interested in, then understand that's the quality of work you'll get.
@SevenDeMagnus
@SevenDeMagnus 6 жыл бұрын
Hi. I'm reflowing a GPU using a hot air workstation (the one with the want)?Should I set it to 200 celsius? How long? Should the board be preheated? What temperature and how long? Thanks.
@johng6673
@johng6673 6 жыл бұрын
SevenDeMagnus I don't recommend using hot air. In order to do an actual Reflow, you need to get it 475f or hotter depending on the solder used originally. In doing so, you can blow the capacitors off the chip before the chip sets correctly, especially since they usually can come off around 425f or so. So for liability, I can't give advice for hot air wands. Sorry.
@johng6673
@johng6673 3 жыл бұрын
Sorry for deleting the comment, I accidentally deleted a comment complaining that this was a horrible video. My response, I'm sorry you feel that way, but thanks for watching.
@khushalnayani8624
@khushalnayani8624 6 жыл бұрын
You haven't suggested the way to do this. Suggest the way to do this and make a video on it.
@georgeanastasiadis6326
@georgeanastasiadis6326 9 жыл бұрын
what is the perfect to have the heatgun to reflow the gpu
@stefan_x7625
@stefan_x7625 5 жыл бұрын
Hairdryer
@whoisme678
@whoisme678 3 жыл бұрын
I did think by sticking a board in an oven you can't localise the heat to the one you want to reflow.
@johng6673
@johng6673 3 жыл бұрын
And everything on the bottom falls off, while all plastic melts
@alexanderserut7718
@alexanderserut7718 3 жыл бұрын
Title should be, "GPU Reflow don'ts"
@hunzhurte
@hunzhurte 3 жыл бұрын
Here's the biggest DON'T: Don't "reflow" GPU's. It is not a permanent fix and making a card work temporarily literally has nothing to do with soldering.
@bellsibub9951
@bellsibub9951 6 жыл бұрын
Do what correctly? What about the "do's"?
@johng6673
@johng6673 6 жыл бұрын
BeLlSiBuB The do's. Use the correct machine that doesn't damage the rest of the components. If the cost of the machine exceeds the cost of the board, replace the board. If you are a shop or are planning on doing multiple repairs, then you probably shouldn't be watching videos on what to do, and maybe spend a little on classes to make sure it's done correctly. The reason their isn't a list of what to do's, there really isn't a variety of different ways. Just the correct way. I made this video since I keep hearing about all the ways people are doing these repairs, all of which don't really fix the problem. Also, I end up getting these repairs to fix from other shops, and I can see the mistakes people make that cause permanent damage. So, the answer is, fix it correctly, or purchase a board. If you need to go as cheap as possible, paying someone else is usually $50-$100. Otherwise, if you need something cheaper, there is videos I don't recommend, and will not take responsibility, that you put tape around the chip except the die, and put a penny in between the chip and heatsink. Very bad idea, but at least you're less likely to cause permanent damage than blowers and ovens.
@bellsibub9951
@bellsibub9951 6 жыл бұрын
Ok, firstly, thanks for the reply. I have an old HP DV6 paptop with a dead screen. KZfaq vidz all point towards blitzing the GPU with some flux and a heatgun.. I know how to build a pc, I know how to change the screen on a nokia 1020 or dismantle a samsung S3/S4 but know nothing of soldering or rather "sodering" as americans call it. I can't afford this equipment. My aim is to get a quick fix and sell the laptop asap. I won't be using the oven method but have ordered a heat gun. I am sure there a lots of youtubers here in my position. So, if you can't afford the equipment and need a temporary solutiuon what is the "right" way to do it please?
@johng6673
@johng6673 6 жыл бұрын
BeLlSiBuB A heat gun is extremely bad. The hot air blowing will actually blow the small capacitors off the chip and even around the chip on the motherboard. This is why I made this video. Now, if you can wait until this weekend, I'll consider making a "Part II", to help you and others like you. I need to think about it, as it will surely cause a bunch of people using this emergency method and the first person that kills their boad will come after me. There is a way I've used when traveling and I don't have my machine. But it's real tricky and without a temp gun, it relies on experience. Get back with me Friday and I'll let you know.
@bellsibub9951
@bellsibub9951 6 жыл бұрын
Thanx John, look forward to watching it. In the meantime I have been inspired by this vid and similar: kzfaq.info/get/bejne/rZlnhLlhqsC8gX0.html
@danielmaxter1928
@danielmaxter1928 6 жыл бұрын
What a fucked up video. Its title is do's and don'ts yet all i heard was DON'Ts!
@chealsyh.rodriguez8096
@chealsyh.rodriguez8096 Жыл бұрын
The coin with lead on top works well.. you just need to do it on a circular motion and woth the correct temperature.. you says lot of things and you are not helping people!!!
@johnofsometrades405
@johnofsometrades405 Жыл бұрын
Coins do nothing to actually fix the problem. The only thing adding a coin does is add pressure to hold the chip to the board. But this is only a temporary fix and will also warp the board or chip preventing actual repairs. I've done this for emergency repairs or when someone couldn't actually afford the fix when I first started until I got copper shims. Now I actually keep copper around so I can gauge the thickness accurately
@johng6673
@johng6673 5 ай бұрын
And how does that fix it? That only puts pressure, but doesn't fix anything. I'm fact it causes more warping making future repairs much harder or more damage to the board.
@garyr7027
@garyr7027 3 жыл бұрын
Do it correctly?... you spent 99% of the video on how NOT to do it. A little more on the "how's" and less on the "how not's" would have been better information on doing it correctly... on to the next video.
That's why i don't replace chipset/cpu/gpu :((((((((((((((((((((
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