What happens when Dave realizes that this room is actually a storage room

Damn Dave, I love your dumpster.

Dumpster dive AND repair. Dave's best genres for repeat customers. Keep 'em comin', mate !

So pumped to get a link from this channel. Thanks Dave!

Dave, this video was a lot of fun, great job as always.

Well done Dave! Fantastic work!!! Congratulations!

Inductors with window, that's new. Nice repair and I'm waiting for the second part, thanks!

Hi Dave, This HP Devices usually sends pulses to the Power-LED to simulate a beep if it don't have any Speaker in. On the HP Website you can usually look what that means (it's going from one pulse per second up to 5 pulses per second). What's it usually does is 1 puls = not used, 2 Pulses = BIOS, 3 pulses = "Hardware" (mostly CPU or RAM), 4 pulses = Thermal Problems and 5 pulses = Systemboard (HP Speech for the Motherboard).

Watching these repair videos makes me want to find broken electronics to fix. Dave makes it look so easy!

This is a known fault with the bios. Glad you re-flashed the bios . The backlight board has a tendency to go pop so I would replace that as well😁

"Secret Squirrel USB Port" is frequently used with a cheap BlueTooth adapter to add BT support. Of course if purchased from HP, it's not so cheap.

Very nice troubleshooting tutorial. Thanks!

Woww that was interesting! EEVblog is back in business!

That was a thoroughly enjoyable video, thanks!

nice fix for the bios..nice they put the SPI header on the board to reflash it..ya dont see that very often on PC mobos

Dave, I when I used to repair displays on macbooks, one test to verify a bad module was to shine a flashlight on the dark LCD. You can see the desktop, after boot. Then you knew it was the backlight module part. Though, with this HP, you figured out it was two issues: bad bios and bad backlight transformer. Great troubleshooting and true trash reward! :)

Congrats man! I've just learnt about that damned bell... now I will be notified!

The little pin in the center is usually a one-wire bus for charger identification. There probably is a one-wire eeprom in the connector.

Oh no, the ghost of Ben Heck haunts you at 18:16!

Nice hope you get it all fixed up and can test it to its fullest :)

When you pull the discreet graphics card, you move the LCD cable to the UMA socket to use the Intel UMA graphics.

Holy smokes, who are these companies chucking this stuff out?!? Awesome dumpster. Can’t wait for the new show!

FWIW, Dave, most machines express POST codes on the soft power LED nowadays in addition to the buzzer (in the off chance there's one present).

Looking forward to it fully running

Thanks for sharing 😀👍

Excellent video.it was useful to me.thank you so much.

These videos are the best! Thanks for doing them for us, the people, so we don't have to! ;) :P

Watched until like 15 minutes in, then I remembered, "oh... I've seen this." Checked the description and confirmed it. Skipped to the new bits at 20 minutes. LOL

you have a very nice dumpster and you are a good and lucky diver

I'm always playing along at home Dave

Now this is the shit i love. This and mailbag, my two faves, ya dig?

If people noticed saying "Dave, you re-uploaded the same bloody video.". Its the same beggining but with extra kind of fix at the end! I used to find stuff back in the 90's after school like big ass TV's and arcade machines. Used to get people from school to help transport stuff home. Ah, the good old days. Best find I had was a small ish TV, CRT of course, but inside was modular. Think it was a German make. All slide out modules you could just pull out and see. So like Modulation would be one card, another Antenna, CRT driver, PSU etc. It was brilliant. Should have kept it. Was a winner but I was probably only about 12 ha ha. Was a 'Winner, winner, chicken dinner', as Dave would say.

That’s it ! I am moving to Australia be because of these dumpsters .... so many treasures ....

nice job.

Just goes to show, if you dig far enough, you can find the problem with anything. People used to ask me about fixing problems with their snowmobile. I would tell them anything is fixable with enough money. Yes, You- Tube is dropping people as far as notifications if you dont keep track of them. Its best to go back to the You- Tube channel favorites you selected and subscribe again every so often.

Those barrels will do 230w at 19v in the latest high end laptops. The 180w 19v jobs were bog standard even back then. Mostly the 330w bricks have the step up in connector with two pairs of pins.

I can't wait to wait for more mr

"complete with Beats Audio, wank, wank, wank" I laughed so hard! hahahhahahah!

Cool i like the bios tinks and how it is not stop you, Cool work and you ar Good teters ;)

You are so god damn lucky. Wish I had access to your dumpster.

Plot twist: People in your business park all around are deliberately wrecking their hardware to throw them away, wait until you find it to watch your dumpster dive! :D

EEVBlog, I just recently noticed that innner barrel on my HP laptop, same with my DELL laptop. The pin is a data line/feedback to tell the device you're connected to how much capacity the line cord has.

I had kind of a deja vu on the DC plug and its inner sleeve, which does the current handling, instead of the tiny pin....

This bug hunt was a "Bobby Dazzler" Dave! excellent sleuthing .. especially figuring out that the series resistance to the flash chip wasn't allowing the minimum current to properly power and program it near the end .. if that failed you had little else to try except removing the motherboard completely and using a code reader .. that buzzer being disconnected didn't let you hear any bios error codes but you could have just probed the connectors to see if there was some pulses to count

Perhaps it had an ESD event (static discharge) that took out the LED driver and corrupted the BIOS chip at the same time.

Excellent diagnostics man and well done! I really enjoyed yer video! ... Winner winner - Chicken Dinner! :)

Intel SandyBridge era CPU, I'd say this machine served its purpose.

the two most common fails on the HP AIOs, specially the LED/LCD Driver, had a hard time dealing with one with LCD (HV) driver shorting the main PSU, major pain in the ass, will love to see a part2 fixing the LED Driver or making a new one :)

I think the new stuff is at 20:00-ish.

Some boards without a buzzer beep through external speakers. You may check whether the backlight is faulty but LCD is still working by using powerful flashlight. Direct the light to the screen and you will see faint image.

In this state you can technically use it as a headless server. After the backlight fix the touchscreen makes a good drawing tablet.

Only touchscreen device I've ever found was a 7" Samsung Galaxy tablet... The screen was broken but I ordered a new one and it works pretty good now. Just has a dark spot in the bottom left-hand side of the screen and it's super bright on the bottom right.

I am quite suprised that the CPU ran that long without shutting down, not having the heatsink on it, unless you put it back when you had turned it round to face the camera.

i thought it was a rerun, now i know to read the desc before i comment xddddddd

wow it is the first time I heard of a mobo with BIOS corrupting by no apparent reason and it seems not by an hardware fault too... incredible

yay taking Inspiration from Louis? ;) Good troubleshooting , I would've never guess the bios fault and probally would mess with the lvds and seperate signal from some "universal" lcd control board. And idk if that hickups on enable are not caused by constant enable pin uptime maybe its some more sophisticated signal driven ?

I bet you could have flashed the bios with that internal USB connector!

I wish I had a dumpster like that near me

Have you compared the BIOS dump BEFORE and AFTER (for the same FW Ver.)?

wow! As an it system expert this is really interesting. Never ever had a problem with a corruptes bios even once. Backlight failures are quite common but broken firmwares aren‘t. Imagine a firmware error on 300 shipped workstations or servers which fail after installation and configuration. Thats my nightmare 😄

MXM is the form factor of the GPU. I think NVIDIA recently announced they aren't making MXM cards anymore, sadly.

I am willing to bet whoever owned this originally tried to “fix” the backlight problem by installing a couple random BIOS images before giving up, never realizing that the BIOS was fine and it was really a hardware issue. With no way to see what it was doing they likely tried various images, ending on one that really made the system non-bootable.

I got one of these at Goodwill with a bad hard drive, put in an SSD and installed Linux Mint. Linux works well but the touch screen, TV tuner and fancy audio amp won't work under Linux. The power supplies for it are available here as well.

Hidden USB port is intended for the wireless mouse and keyboard dongle that was shipped with these machines. There's a small cover that pops off the back to access it.

Dave, the MXM card runs through the IGP lvds output, the Intel/AMD drivers will determine what applications draw on the Dedicated GPU. The screen may not power on if no signal is detected. Like so he sees this comment.

Super Cool

After the 20:00 is the updated new repair. Certainly the person who dumbed this PC didn't have special knowledge of electronics to flash the BIOS chip. I don't blame him at all. After all even the display has an issue.

Wait for Ben Heck to get there!!!

How did you run that machine without the heatsink??

Have a refurbished HP AIO shipped with a wrong BIOS 😲 No way to reflash....but I learnt something from this vid👍🏾

I've got to move to Australia. I never find anything like this set out to the trash. It either goes to the recycle center or somebody puts it on Craigslist for 300 bucks.

It's a Bobby Dazzler Australian EEV sitcom rerun. Must be ramping up for that new Dumpster Dive Dude later this year.

I didn't expect a ROM to go wonky. As the backlight is off as well, could it have been a power surge?

The important backup data PC.

on 13:46 it's looks like a video you've uploaded a few months ago that I have commented "you add to the damage" :)

When you get it fully repaired then maybe Ben Heck could turn it into something like a Cat scanner. I need something to scan my cats.

Interesting. Do you know a dumpster like this in Timisoara, Romania?

The hidden usb is for wireless keyboard and mouse reciber

Those inner usb connectors are sometimes use for mouse and keyboard receivers

Please do a follow up!

just when I think he'd stop trying, he continues!

Am I mistaken or are there 4 capacitors missing? There are outlines printed on the board, complete with through-holes, but they're not populated.

Nice again Dave. Btw these touchscreens look fancy. But jeeze they are annoying as hell. You will discover when you want to point out stuff on you screen, lol

Dave, I was working on a customers HP eny to replace the power supply, low and behold they threw it in a dumpster and bought a POS desktop to replace it. I was pissed when they told me, I would have salvaged it for my own use, was very sad :(

The secret usb is normally used for a wireless keyboard and mouse dongle. It otherwise acts as a normal usb

Why does the 121GW DMM still have the temporary screen protector on? 11:20 I mean if you scratch it I think you have a source of replacements! Do you still have the plastic shipping protection on your furniture at home? ;-P

180w 19v power supply with barrel jack? That's the standert power supply for gaming notebooks.

Has this video been reused I seen this before with case not clipped in and the dicki pin .?

The hidden USB isn't really hidden, there is a hole in the case to plug in the included USB Wireless keyboard/mouse receiver.

can someone tell me where did you found those dumpster please, because i also have the skill to fix computer and electronic

Very unlikely that the backlight board had a fault initially, in addition to the BIOS fault. I bet the fault had been caused during the repair attempt. I'd start by making sure that the motherboard is doing its job there properly, sending the enable signal, and that the backlight board has power.

Wait. You said the driver receives no enable signal. So why you think about replacing the driver board? Who does miss something?

You did have it working without the video card so you should try that, i have had those gone bad.

the "secret squirrel" usb is probably for housing a usb receiver for a wireless keyboard/mouse so that the end user can't unplug it and lose the thing. If this had been for an office they probably opted not to get that feature because they already had their bulk deal on crappy keyboards/mice.

I wish that you would follow through and fix these things, even if it would not be economically viable. We learn by watching the process and a good deal of this is lost if you don't follow through to the end of the process.

intersting its problem was a bad bios that needed reflashed something tells me they tried doing a bios update and it failed for some reason and it was beyond where it could attempt to roll back

My HP Envy touch screen driver keeps the curser jumping all over the screen. Is it repairable?

Pls make the 2nd part!!

hey dave, i was thinking it might be interesting for you to do a video discussing the forgotten fifth passive component the "gyrator" i wonder how many "young players" have even heard of them.

Does the bell icon benefit the channel's stats/visibility/whatever or is it just for the benefit of the end user?