PC Crashes After Upgrade

September 28, 2011 at 08:51:41
Specs: Windows 7
After upgrading my video card and CPU, my PC tends to crash after about 10/15 minutes of use. It just freezes and won't do anything until I restart. First thing I did was perform a memtest and found that the problem is not from the memory. So I'm thinking its power supply related? Now I have a 620W PSU and was under the impression that it would be enough. I can't try taking out the graphics card as I don't have an on board VGA port and the computer won't even POST without the card. But the card is brand new so I should hope its not card related.. Any advice would be appreciated.

CPU: Intel Core 2 Quad Q6600 2.4Ghz
Graphics: Geforce GT 430
RAM: 2GB DDR2 PC-6400
PSU: Standard 620W ATX Power supply.


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#1
September 28, 2011 at 09:01:58
" PSU: Standard 620W ATX Power supply." You need to supply the full model or all the specs for that PSU.

The 430 seems to only draw about 4Amps (49W) from the 12V rail so most any PSU should work.

Did you remove the old graphics drivers before installing the 430?


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#2
September 28, 2011 at 09:11:14
No I didn't remove them as I intended to format anyway. The PC is even crashing during the Windows installation and I've tried changing disks.. as for Power supply, the exact model name is Enermax Liberty ELT620AWT

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#3
September 28, 2011 at 09:24:54
Check your CPU temp in the BIOS.

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Related Solutions

#4
September 28, 2011 at 09:29:25
its fine, about 40 celsius

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#5
September 28, 2011 at 09:42:25
Newegg has that PSU deactivated but there are a couple of hundred review there. Many have had issues with it. In addition to checking the temperatures I suggest you also monitor the voltages. Some reviews indicate there were issues with power stability. You can monitor both using CPUID or speedfan. Get CPUID at the link below.

http://www.cpuid.com/softwares/hwmo...


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#6
September 28, 2011 at 09:47:17
i don't understand, I've had this PSU for 4 years with no problem, and only when i upgraded the CPU and graphics did problems start to occur.. could it be anything else?

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#7
September 28, 2011 at 10:27:01
Of course it could be something else. I am not suggesting that it is the PSU. It is a simple and no cost method to identify or eliminate the PSU as the cause.

Is there a 12V power connector on that new graphics card? If so, is it connected?

Make sure the new card is fully seated too. You do unplug the AC cord before messing around in there, don't you?


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#8
September 28, 2011 at 10:42:39
"After upgrading my video card "
"I don't have an on board VGA port and the computer won't even POST without the card."

can you reinstall the old card to see if the problem continues?

larry


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#9
September 28, 2011 at 16:58:22
the problem is the old card is totally dead..

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#10
September 28, 2011 at 18:41:38
Did the old card go out with a bang or just die? Are you monitoring the voltages, as I suggested?

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#11
September 29, 2011 at 02:10:52
the old card just died. what should I be looking for in the voltages?

Edit: I read that the voltage for my CPU should be between 0.85 and 1.5v, it was currently set to "Auto" at 1.28v so I upped that to 1.35v to see if it helps


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#12
September 29, 2011 at 05:47:30
What you look for are deviations from the specs. 12V, 5V, 3.3V should all be within +-5% of those values. I would recommend you leave the CPU voltage set to auto. 1.28V is within specs.

You should monitor the voltages and temperatures in real time using a utility like CPUID that can run in the tray. Idle and load values can be different.


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