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PC restarting, after 20min of GTA IV

Last response: in Systems
October 25, 2013 4:25:40 AM

Hello everyone,

i'm having problems with my computer,
i run GTA IV for about 20 min and than PC restarts couple of times before booting into Windows 7 again.

While playing Flight Simulator X i could fly for hours and never does this, both games on full details, using 720p resolution.

System Specs:

Intel i7 920
2x Gainward golden sample 275 GTX sli
OCZ 6GB KIT DDR3 1333MHz CL7-7-7-20 Platinium Series Low Voltage
OCZ StealthXStream 600W Gamers

this problems ocurs for some time so i instaled better cooling on GPU suspecting it could be an issue now both cards wont go higher than 75°C

CPU is toping 65°C

As i wrote i'm running win7 64 not overclocking anything.

Do you have any idea what could be the problem?

More about : restarting 20min gta

October 25, 2013 4:31:06 AM

how old is it? Capacitor aging may have reduced the capacity of your OCZ PSU. What happens if you lighten the load on it by removing one of your graphics cards?
October 25, 2013 4:42:00 AM

Sounds like a psu problem..
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October 25, 2013 4:43:58 AM

PSU is 4 years old, bought it on 28. 06. 2009. I didn't try that, but i tried switching off sLi by nvidia software. But thats probably not the same.
October 25, 2013 4:44:27 AM

Yes, it does. I'll take my dings for not being able to provide links, but it seems to me a few years ago OCZ was being soundly criticized for using substandard parts that might not hold up; things like 85C [Samxon] capacitors if I remember correctly.
October 25, 2013 4:49:13 AM

First i was blaming GPU because it run way to hot, after cooling it down it looks like PSU to me, but i can't explain my self why it reboots several times during 20 seconds?
October 25, 2013 5:23:56 AM

If it is capacitor problems because of heat, output filtering could be suffering. It may be passing out-of-spec ripple that is triggering the restarts, at least until it cools back down. This is potentially dangerous to attached parts.
I would suggest running on only one graphics card until you've replaced that PSU.
October 25, 2013 5:54:25 AM

Could i locate the problem in PSU, i know PSUs does have some kind of diagnosis message thru some specific pins. But it probably won't tell exact problem. But lets suppose i know what is the problem it should be chageable isn't it?
October 25, 2013 7:12:00 AM

No. Working inside a PSU is extremely hazardous unless you know exactly what you are doing. Capacitors can be replaced (I know at least two technical PSU reviewers who do it), but it's a good way to get burned or killed if you are not extremely careful. There is no detailed diagnostic information provided by a PSU, just a "power good" signal that is of limited value (but may be dropping, causing your mobo to shut off).
October 25, 2013 7:26:24 AM

Well if it is question of trash or repair i might give it a try and repair it. I got a lot of resources and knowledge to do so. If it can't be repaired i'd buy a new one and refer if that helped.

Best solution

October 25, 2013 7:35:20 AM

Capacitors in a PSU can be replaced. If you know what you are doing, such as how to discharge them first, you can do it. Companies like can source any parts you're likely to need. If you go to the forums, you will find companies selling "recap" kits, although those are typically for motherboards.
Just keep in mind there's no guarantee this will repair this unit. It may save a lot of time and trouble to just replace it.