I hate to see people being told to replace their motherboards by someone who hasn't even seen or tested the machine when the motherboard doesn't need replacing at all. This blinking light problem is common with some of the older Dell machines. It is usually caused by a "residual charge" remaining in one or more of the caps on the motherboard, and the solution is very simple. - Solution for blinking light on a Dell that won't post - 1. remove the power cord. 2. Hold the power button in for 30 seconds to allow any residual charge to discharge. 3. Plug power cord back in and boot up. Voila...! It works again. As far as everyone talking about replacing the CMOS battery, that is NOT the solution, and is unnecessary. When the CMOS battery dies, it does NOT stop the computer from booting. The battery is a "memory retention" battery, and has nothing to do with the CMOS itself working or allowing the computer to boot or not. The computer will still boot when the "memory retention" battery dies. Some computers will actually show a message saying "low battery" on the screen during the boot process before the battery dies. But even on those that don't, all that happens when the battery (that allows it to retain it's settings in memory) dies is all of the CMOS settings revert back to their default settings again and the time and date revert back to the CMOS manufacture date, but the machine still boots. In fact, in many machines, the indicator that the CMOS battery needs to be replaced is that they no longer show the right time and date, and won't retain the time and date when they're reset, but the machine will always still boot up (or will show a message on the screen saying the battery needs to be replaced) even when the CMOS ("memory retention") battery dies. NOTE: Whenever you take the CMOS battery out of a computer, it loses all of it's settings and they all revert back to their default settings just by removing the battery. So, ANYTIME you remove and replace the CMOS battery, you also have to go into the BIOS afterward and you have to go through all the settings and reset them to where you want them to be, otherwise as long as you're using the computer after the battery has been changed, you are booting up using the BIOS default settings just as it came from the factory again. For ALL other problems (like faulty memory sockets, damaged memory, etc.) that were mentioned, there will be beep codes that occur. Even if the memory is not seated properly (like one retention clip not secured on one end) there will usually be a beep code, though some machines use a light code. (the user manual will tell you what the light and beep codes mean under the "troubleshooting" or "beep codes" section). So, even if there is no memory, or the memory or memory socket is physically damaged, part of the POST process is to check that the computer has every component in place and in working condition that it needs to boot. That's what that "Beep" means when you first start the computer. It is a beep code that means everything is in place and checks out and the computer will now start. If the BIOS finds any component it needs to start the computer is missing or is faulty during the POST (Power On Self Test) process, it will them emit various unique "beep codes" or "light codes" to tell you what component is missing, not properly seated, or broken and needs to be replaced before the computer an start. If the computer is POST'ing, It will generally not be silent and just sit there with a cursor blinking on the screen. When it does that it is not even POSTing, and the most common reason for this is a residual charge remaining in the capacitors on the motherboard that need to be discharged before the BIOS can actually run the POST test.

Good you mentioned RAM, it works. One of the sticks in my CPU was loose. When I pressed, I heard click and now the amber alert is gone!

For those of you who want to know how to fix the issue very quickly: Replace your power supply. Common failure in Dell PCs.

I just reset the cmos and the other jumper thing, and now it’s working again 😃 Edit: and reseated the RAM

After removing dead battery, you need to restart the computer. Then while pressing and holding the power button, remove the power cable, continue holding the power button for one minute (this will eliminate any residual current in the system). Put the new battery in the place, and voila the computer should work now.

Sir only red light no beep & no signal please answer

I had the same problem but i fixed it without changing the motherboard i just change the powersupply ang then it worked 😇

Thank you it works 👍. I replaced the exausted CMOS batery but also the memory bank has a problem, and I only move the simm from bank 1 to bank 3 and now my computer boots as usual.

Luckily for me just blowing some air through the PSU (to and also clean out its clogged grill) seemed to fix it :)

Thank you for this video very informative and helpful. Keep safe you and yours.

In my case I have an Optiplex 7010 and the power button glows white apparently everything looks fine but there is not video and I have noticed it don't recognize my keyboard, previous that issue I got orange light and removing ram fixed it. Now ut looks like a Bios problem or dead motherboard.

I had this issues tried loads of fixes noting worked turned out it was snapped cpu socket pin changed mobo no problems now works

Thank you I will replace the battery to see if it works.

My "new" Dell Inspiron 530 I just got has a solid amber light on the power button. Surprisingly when I pressed the amber button it went blue and it DID POST a couple times and I checked out the BIOS. I put a solid state drive in it and powered it on but it won't POST now. I disconnected the SSD but it still won't POST. It now still has the solid amber light but when I press the power button it goes blue like before but it will not beep. The screen doesn't power on now either. I press the power button again and it turns off. I don't have to hold it in to turn it off. I guess I'll get a new Power Suppy Unit but do you know if it might be something else? I'd hate to get the new PSU and it still does this. I DID replace the CMOS battery as I was told the old one was bad and the guy I bought it from replaced it with another old battery and he wasn't sure about it. So I put in a new one. But my power button isn't flashing orange which I think means its the CMOS. It's light is solid amber. So solid orange means a power supply problem, I've read. Could it be something other than the PSU?? I will point out that there is two different kinds of memory in the computer but with the amber light meaning a power problem could it be the memory? Any help is appreciated. -Tom

so basically you got a new pc

What I did was, I just uninstalled and installed back in the RAM then it works until now 😊

Very helpful.. I attach my rams to other slots orange light gone, working fine.. dell precision pc

Hey a question how do I get the thing over the cmos battery to come out I can figure it out

Sir,I have the same CPU , my problem is that when everytime I start my CPU it shows error of " Alert, error intialliging pci express slot 4". But all my PCI slots are empty. Please Sir, help me to get the solution for this.

Sir I have a orange light everything seems to work but I have not screen what must I do

Flashing Yellow is normally a power supply issue.

same problem, blinking orange light. i solve this by re- seating the rams, remove all ram stick and clean the contacts using rubber eraser, drain residual power on pc and place it back. my dell optiplex 380 works again just fine.

thank you!

Another problem effects Pc`s is the Ram sticks metal pins need to be cleaned , happened on a old Dell I had ..

try this man unplug the main power cord the one with heaps of chunky cables and simply plug it back in, i had this happen when i just installed a sata cable (for my new ssd card that hasnt arrived yet..) After i did that it must of wigged out the mother board, i freaked out and unpluged the Sata going to my old SSD and the power cord connecting that then i unplugged the power supply from the motherboard(the chunky cable with heaps of cords) plugged them all back in and it works fine, even with the sata cable that caused the initial problem still installed. I hope this helps somebody out there, because i was ready to smash it.

When the device has been working for a long time, the blue light is constantly on and the device is buzzing

ok this happen to me after a bad hurricane outage and maybe there was some moisture in the air from the lights being out for some days what fixed that problem is i opened it up and used a hot blow dryer to dry it out after that it worked perfectly

Sir, ano po ang pwd gawin sa cpu dell optiplex 9020, d po ma on ang power switch, ma on sya kung sa back side na black button ang ang pindutin?

Problem solved it was the battery that I replaced. Thank you for this video

My computer desktop the orange light has also been blinking since a few days. But still works. I also want to make it myself but I don't know anything about it.

Sakin orange lng sya di nagbiblink pero ayaw magbukas walang display ano po kaya sira

My amber light is not blinking .what is the issue please?it appeared after I replaced my RAM accidently in the rong sens the first day it was a green colour but nuber134flashing after a technician tried to solve the problem the green light went and became fixe amber.,😭😭😭

what does it mean the yellow light on motherboard Dell t5400?!

yes make sure ram chanel is correct also it is recomended to go to dell forums for help because sometimes dell have diagnostic light signals which is easy to identify by just going to their site forum anyway ty for naking this vid

I change the power supply

thankyou شكرا

You have to cut the green wire + ram

Yung sakin po d naman nagbliblink bumili narin ako ng bagong battery ayos naman ram at hard drive..nagamit kopa sya ng gabi kinabukasan wala na ayaw na orange light na

my friend you do very well but first you try my method you don,t need to other pc i love you

Hi kuya paano pag nag blink ng blink na orange po sya

yung saakin po ay , steady lang yung orange light nya at ayaw mag on. ano po kaya posibleng sira ?

chk 1st usb short?

You replaced the PC not the motherboard

Dude, my PC light is stuck not blinking. What can I do. Please reply.

panu po ung sakin? pan spinning kahit di mo i on.. nag tap aq ng wire sa green wire psu derekta sa case ok na.. ilang araw . auto on off with orange light naman

I love you rajaa .thank u

My Dell's power button glows Orange constantly - no flashing, and refuses to boot up. It is a Dell Optiplex GX 620 with original motherboard and 4 GB ram running Windows 7 ultimate with an Intel quad core cpu. Is it the cmos battery or power supply? Thanks! Oh, and no snarky comments because I know how old it is, and all I use it for is surfing the web and watching DVD movies. OK?

Mera computer Dell slim 155 Hy on late hota Hy tell me sloution

My computer has an blinking orange light, its an Dell Optilex 9010 I tried everything but still doesnt work. Soon as I plug my cable to the power suppy the computer turns on without me pressing in the power button (w/orange light blinking) Can somebody please help me

Pls help i have cleaned my computer optiplex 760 but when i plugged everything and wanted to starting it up it didn't work and the power butten has no light but when i tried to press the test button on the back of the computer and the power button it worked but now i can't turn it on until i press the test button what should i do

in first change RAM )

Sir pwede po ba to sa Dell optiplex 780?

RAM swithced - PSJ

OMG! 😳 You just downgraded your 755 to a 745. 😂

Lol ! You edited it

the problem it a a mosphet on motherboard