Computer randomly shutting off during gaming

[roper512]

Okay so here's the abridged version:

I had dual 7800GTX 256meg cards and dual core processor.. Worked flawless in all games.. Now I have dual 7800GTX 512meg cards.. I get random shutdowns in many games (although for some reason WoW runs fine for hours)

Here are the things that changed between now and then:

1) the new cards have higher clocks and probably take up more juice?
2) my sound card had to get shoved to the last PCI slot..

Now, problem is, the last PCI slot on my Asus A8N-SLI premium apparently shares with video. I was thinking this was the issue as when i run video stress test programs i have no shutdowns..

Unfortunately due to the 7800 512's taking up a bunch of slots on the mobo, the last pci slot I believe is my only option..

Another problem is I'm not sure if it's the sound card conflicting with the video, or if its a video card problem or if it's the power supply not giving the system enough juice during very demanding gaming..

I'm coming to you guys for help.. I have ran video stress test while running prime95 and such on both CPU cores and it runs no problems it seems. Maybe I'm not doing a good enough job at stressing. I do not overclock any of my stuff..

Also, my computer never shuts down when I'm not gaming

Anyone have any suggestions/ideas? My computer specs are below:

SLI 7800GTX 512meg cards
Asus A8N-SLI premium motherboard
AMD Athlon 64 4400+ X2
2gig (1gbx2) OCZ memory
Antec TruePower 550w
Creative Labs Sound Blaster Audigy 2 ZS
Dell 2405fpw

 

[BigCoolJesus]

try taking out the sound card and just using the onboard sound........see if that fixes it (so you can at least factor out one possible culprit)


on the power side your Antec should easily handle the load

 

[gplracer]

Do you think the power supply is enough? That is 2 7800gtx cards.

 

[python023]

http://extreme.outervision.com/index.jsp

 

[roper512]

One other problem I'm seeing is this.. In my event viewer.. These happen every time the computer shuts down randomly I believe:

Event ID: 51
Event Type: Warning
Event Source: Disk
Description: An error was detected on device \Device\Harddisk0\DR0 during a paging operation.

Think this could be part of the problem? If so what's the solution?

 

[Zap Brannigan]

Originally posted by: python023
http://extreme.outervision.com/index.jsp

His power 550 watt power supply should be plenty for his rig.
If it is hard drive related, first try a defrag. Your drive might be a mess. Also how are the temperatures?

 

[Zap Brannigan]

Just noticed the time, and thats bed time for me lol. Hope someone helps you fix your problem before morning!

 

[pkme2]

Check This Link

This is the similar situation with the Antec PSU. Especially with the Dual Card gamers, this PSU is suspect. An earlier PM talked about leaky capacitors and that could contribute to your problem. Too bad, Antec has been a good product and now I'm wary of it.

 

[roper512]

I ran memtest overnight and no errors were found.. So I can rule out memory issue..

Should I try swapping in my old 256meg 7800gtx's and see if that fixes the issue? I guess that would rule out if its a video card problem or not..

What I find very odd is World of Warcraft runs perfect no matter how long it's played.. Other games (such as quake4, civilization 4, black and white 2) all shut down my computer within 5-15 minutes of playing...

arghhh

 

[CraigRT]

I have had the same sort of problems in the past, always a PSU issue.

 

[gooseman]

Sounds like a PSU or a heat problem to me.

 

[hans030390]

I've had a similar problem. Turned out it was AntiVir screwing up my computer...or TuneXP, one of the two.

If you have either, remove them and see what happens.