CPU wil not turn on.

Factor · 12-27-10, 04:28 PM

Hello,

My computer has a problem. I think it may be the power supply. Anyway, when i turn the computer on, it starts up, but right before it gets to the windows splash screen, it turns off. Before this happened, I would get the Blue Screen randomly. Mainly if watching videos on youtube for example.

After trying to turn on the cpu a few times, it will not turn on at all, untill sometime later, with above results. I have had this cpu for almost 5 years, with various upgrades, but the power supply unit is the same. Computer would stay on for days at a time, if not months. In sleep mode of course.

Any Ideas?

3800 AM2
9800 GTX
2048 memory
500 watt power supply

12-27-10, 04:33 PM

Replace the PSU.
I just had one die with much the same stuff going on as you posted.
I slapped in a backup PSU I had and have run for nearly a week with no shut downs.
While your in there?
Blow or vaccum the inside of the system..
Clean the fans if they need it also.

Factor · 12-27-10, 04:36 PM

I have all the fans pulled out now.

And yes, they were dirty, the PSU was full of gunk, sure that didn't help it.

Hopefully the PSU is the culprit, fairly cheap fix.

Factor · 12-27-10, 06:14 PM

After pulling the PSU out, I found out that the 9800gtx had only 1 plug feeding it power instead of 2. Maybe this caused the PSU to burn up?

Castout · 12-27-10, 08:28 PM

it may not be the PSU. And PSU doesn't come cheap. It may as well be the memory stick. But those are a lot cheaper to fix(buy).

Try playing with the RAm sticks. Pull them out and insert them one by one.

TLAM Strike · 12-27-10, 10:20 PM

Quote:

Originally Posted by Castout

Try playing with the RAm sticks. Pull them out and insert them one by one.

You can also try running memtest see if that spots bad ram.

Let us know if you fix it Factor. I sort of have the same problem (but its not as bad). A PSU is about the only thing I have not ruled out.

ETR3(SS) · 12-27-10, 08:28 PM

What I learned about PSUs is that they lose their wattage over time depending upon use. If I remember correctly the capacitors are the cause of the problem.

12-27-10, 04:28 PM	#1
Factor Weps Join Date: Dec 2006 Location: North Carolina Posts: 356 Downloads: 180 Uploads: 0	CPU wil not turn on. Hello, My computer has a problem. I think it may be the power supply. Anyway, when i turn the computer on, it starts up, but right before it gets to the windows splash screen, it turns off. Before this happened, I would get the Blue Screen randomly. Mainly if watching videos on youtube for example. After trying to turn on the cpu a few times, it will not turn on at all, untill sometime later, with above results. I have had this cpu for almost 5 years, with various upgrades, but the power supply unit is the same. Computer would stay on for days at a time, if not months. In sleep mode of course. Any Ideas? 3800 AM2 9800 GTX 2048 memory 500 watt power supply

12-27-10, 08:28 PM	#5
Castout Silent Hunter Join Date: Nov 2006 Location: Jakarta Posts: 4,794 Downloads: 89 Uploads: 6	it may not be the PSU. And PSU doesn't come cheap. It may as well be the memory stick. But those are a lot cheaper to fix(buy). Try playing with the RAm sticks. Pull them out and insert them one by one. __________________ My blog: http://exposingsingapore.wordpress.com/

12-27-10, 08:28 PM	#7
ETR3(SS) Ocean Warrior Join Date: Dec 2007 Location: Between test depth and periscope depth Posts: 3,021 Downloads: 175 Uploads: 16	What I learned about PSUs is that they lose their wattage over time depending upon use. If I remember correctly the capacitors are the cause of the problem. __________________ USS Kentucky SSBN 737 (G) Comms Div 2003-2006 Qualified 19 November 03 Yes I was really on a submarine.

12-27-10, 04:33 PM	#2
Madox58 Stowaway Posts: n/a Downloads: Uploads:	Replace the PSU. I just had one die with much the same stuff going on as you posted. I slapped in a backup PSU I had and have run for nearly a week with no shut downs. While your in there? Blow or vaccum the inside of the system.. Clean the fans if they need it also.

12-27-10, 04:36 PM	#3
Factor Weps Join Date: Dec 2006 Location: North Carolina Posts: 356 Downloads: 180 Uploads: 0	I have all the fans pulled out now. And yes, they were dirty, the PSU was full of gunk, sure that didn't help it. Hopefully the PSU is the culprit, fairly cheap fix.

12-27-10, 06:14 PM	#4
Factor Weps Join Date: Dec 2006 Location: North Carolina Posts: 356 Downloads: 180 Uploads: 0	After pulling the PSU out, I found out that the 9800gtx had only 1 plug feeding it power instead of 2. Maybe this caused the PSU to burn up?