Discussion Pc not turning on after thermal paste application

[Karthik nair]

I just today on 16/7/2020 applied thermal paste on my cpu I kept the computer on ground and sat in the floor to apply the thermal compound but after doing all the usual checking and placing the cooler tight the pc is not turning on still(no signs of life). nothing is turning on even the light on my motherboard is not turning on.

My pc specs:-
1.)Intel e1260 dual core processor @1.8ghz
2.) 2gb DDR2 800mhz single channel ram 800mhz
3.) gigabyte ga-945-gcm-s2l motherboard
4.)500gb ide drive
Plzzz help I am a student and I want my computer back urgently for study purpose.

Thanks in advance

 

[DAPUNISHER]

When you say the usual, that means -

You reseated everything
You checked all connections. In particular, that the power cable is firmly seated in the PSU, and if there is a switch on it, that it is in the on position
You tried clearing the CMOS, going as far as to pull the battery for 5 minutes.

And about the thermal compound; did you use a conductive or non conductive product? A little conductive compound in the wrong place can be a bad time. If all that checks out, next thing I would do is pull the board out of the case and try to boot bare bones. Next, you will need another PSU, or you can test your's

Hopefully it is something easy, and not a dead board or PSU.

 

[Karthik nair]

I just today on 16/7/2020 applied thermal paste on my cpu I kept the computer on ground and sat in the floor to apply the thermal compound but after doing all the usual checking and placing the cooler tight the pc is not turning on still(no signs of life). nothing is turning on even the light on my motherboard is not turning on.

My pc specs:-
1.)Intel e1260 dual core processor @1.8ghz
2.) 2gb DDR2 800mhz single channel ram 800mhz
3.) gigabyte ga-945-gcm-s2l motherboard
4.)500gb ide drive
Plzzz help I am a student and I want my computer back urgently for study purpose.

Thanks in adva

When you say the usual, that means -

You reseated everything
You checked all connections. In particular, that the power cable is firmly seated in the PSU, and if there is a switch on it, that it is in the on position
You tried clearing the CMOS, going as far as to pull the battery for 5 minutes.

And about the thermal compound; did you use a conductive or non conductive product? A little conductive compound in the wrong place can be a bad time. If all that checks out, next thing I would do is pull the board out of the case and try to boot bare bones. Next, you will need another PSU, or you can test your's

Hopefully it is something easy, and not a dead board or PSU.

Hey dapunisher,
Thanks for your reply but this happened today evening when I did the thermal paste change.i didn't unplug any cables or reseat the cpu I was just cleaning the computer and I saw that the thermal paste is dry so I replaced it and cleaned I cooler.After that is repacked up everything and when I pressed my power button nothing happened.in fact when i turned in my my main power switch the lights on the motherboard should have lit up but they didn't .hope you can help me once again.... thanks in advance 😊 😌

 

[Karthik nair]

And also the cooler is an Intel stock cooler so when I reseated the cooler the cooler mounted really tight. If you want some pics of my pc plzzz ask me....

 

[DAPUNISHER]

Hey dapunisher,
Thanks for your reply but this happened today evening when I did the thermal paste change.i didn't unplug any cables or reseat the cpu I was just cleaning the computer and I saw that the thermal paste is dry so I replaced it and cleaned I cooler.After that is repacked up everything and when I pressed my power button nothing happened.in fact when i turned in my my main power switch the lights on the motherboard should have lit up but they didn't .hope you can help me once again.... thanks in advance 😊 😌

I understand. But moving the PC around, and working inside of it, a power cable could have worked loose enough to not connect electrically. If that happened, it would explain no power to the board. The pressure involved with mounting the cooler, could have forced the board against something metal causing a short. If you used metal based paste, it could have caused a short. You could have, though it is unlikely, ESD damaged the board. The list goes on.

Immediately speaking, testing the PSU is the next move. If that turns on, and you confirm all cables and connections are secure, you may have a dead motherboard. I would even try a different power outlet. I have seen so many things go wrong over the years, that I never discount any possibility, and methodically eliminate them until the troubleshoot is reduced to being able to pinpoint the culprit, or the system is working again.

Good luck and let us know what happens.

 

[VirtualLarry]

Hate to say it, but also inspect the capacitors (little tiny metal round silos) on the board, they have a cross-hatch pattern on the top, and may have split open, or are bulging, or there might be residue coming out of the bottom. If so, the board is toast, get a new PC. It's old enough that that might be an issue.