Spot checking for faults - at my wits end

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This is the post i've been spamming around several tech forums over the last couple weeks:

"First, my specs (Self built);

Core 2 Quad Q9550 OC'd to 3.4 (Temps; 27 average idle, 59 average prime95 torture test)
Corsair 800mhz DDR2 XMS2 8GB
Asus P5Q-Pro
Nvidia GTX280 1GB
Zalman 750w PSU
Antec 1200
Windows 7 64bit RC

Before posting here i've checked everything I can possibly think of, right down to opening my machine and checking all the wiring and a reformat. All drivers, directX etc are up to date.

Basically, during two games that I know of, simply executing them causes my machine to lose power, as if someone yanked the cable out. These games are STALKER Shadow of Chernobyl and the recently released Darkest of Days demo. When I lose power, my machine then starts up on it's own and i'm asked whether or not to boot normally or in safe mode.

Back when I built my machine in January, STALKER would do this maybe 5% of the time, and at random intervals, but was still playable (I was on Vista 32 at this time). Now, I get a glimpse of the menu screen before losing power.

Darkest of Days cut off instantly the first time I executed it, the second time I managed to play it through and have it cut off at the end credits, the third time I got past the menu and into loading the first level, and now it cuts out immediately. The only time it doesn't cut out, is sometimes it bugs out on me and opens in a tiny window (maybe 640x480) and during this time I cannot click or interact with the program in any way, but it doesn't cause my machine to pack in either.

Any google search I try simply yields people who are losing power due to using systems that are too weak to cope with the game they're trying to run, having insufficient cooling or an insufficient power supply.

I should also note that I can quiet easily run every other game I own on this machine with no problems (Half Life 2, TF2, CSS, DODS, Empire Total War, The Last Remnant, Velvet Assassin, Wolfenstein, Mafia, Max Payne, Company of Heroes, Call of Duty 4/5, Bioshock, GTA4, Crysis etc) so I believe I can rule out any hardware problems or surely they would present themselves in these games.

Any ideas?"

After many responses, none of which worked, I concluded that as STALKER ran on Vista, Win 7 64 must be the problem, so I reinstalled it.

No dice.

So, time to spot check for problems. Is it at all possible that my PSU is bugging out but still works with other games? Failing that, how do I go about checking individual components?
 
First things first, we need to find out what's actually causing the crashing. Best way to get an initial idea is to have a look at the BSOD.
To do this, go into Control Panel, System, Advanced System Settings, Startup and Recovery, and uncheck the "Automatically restart" box. Then try launching one of the crashing games- You should get a blue screen with a load of writing on; Post this, and we'll be able to get a better idea of what's going on :)

-Leezer-

Some guy on another forum asked me to do this. I tried it; no BSOD. Same problem. Didn't get any replies after that though.
 
Could be worth doing something like this as a test. also memtest as previously stated just to rule out the majority of your hardware.

Also have you tried patching the games? stalker clear sky wouldn't work on windows 7 64 bit for my brother until i patched it up to date, not sure if it would cause restarts but if you can run all them other games especially crysis with no problems i wouldn't be so sure the culprit is hardware. Seems an odd problem tho as i haven't known a game to cause that. Perhaps graphics drivers could also be looked at.

Patched, and tried with Vista 32with which it used to work.

I'll run Prime95 and Memtest later today. What is furmark and linpack?
 
Try prime95 blend test. i've got the same setup and had problems like you.

Remove 4 gig for testing.

Up the volts on the core to 1.35, ram 2.1, nb 1.36. fsb term 1.6/7

I'm running the default blend test now, if all is well i'll open my box later and remove some ram and retest. If nothing then i'll mess with the voltages.

Edit. Are those suggested voltages for testing or for normal running? I haven't overclocked my RAM if that make a difference.
 
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Try furmark before you bother ripping the RAM out. The reason I suggested linpack is because it causes the CPU to produce more heat than Prime95.

OCCT = http://www.ocbase.com/perestroika_en/ once you have it running the linpack stress-test option will be obvious. It will monitor temps & voltages for you (so you can observe to see whether any of the rails are dropping untowardly).

Any tips for optimising the Furmark stability test? Do I want "Xtreme Burning Mode", "Log GPU Temp" or "Post Processing"?

Edit. Ran furmark for a while and no errors or anything, but it got me thinking; I'm not even getting in game, i'm crashing at the menu before anything intensive has rendered anyway.
 
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So maybe your problems are elsewhere, or Driver based. Give OCCT linpack a try, then the other suggestions provided (memtest, driver cleaning utility + reinstall)

When OCCT outputs graphs (after it has finished running) perhaps you could upload them somewhere and post them here so that we can have a look

I tried ccleaner and reinstall and that didn't help, although I will try rolling back drivers as someone suggested.

Currently running a full blend test (didn't let it run the full two hours before) and if that comes clean i've got OCCT installed and ready to go.

I am wondering though, since I changed the recover setting to not auto-restart and go to BSOD instead, yet it still restarts, is this indicative of a fault?
 
As has been said before try upping the ram volts
What volts are you running the ram at?now

I'm looking at the DRAM Volt setting; it's currently set to auto, but also says the default setting is 1.80. Is this the setting I should bump up to 2.10?

Oh, two hours Prime95 blend test no errors.
 
Yep bump it up, then try the things I mentioned earlier with OCCT and posting the graphs... Good luck.

I'm running OCCT CPU Linpack test now. Under the monitoring tab, it provides 3 Voltage meters; VCore, 3.3V and 12V, is there anything I should be watching with those?
 
Can't be any harm. Do the problems still persist after the RAM voltage has been upped?

I'm getting the same problems with the ram voltage pushed up to 2.10. I'll upload the images if I can find where OCCT stored them.

Isn't there another way to find out what is causing the crashing? Surely it'll be easier to address then.
 
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Did you run memtest yet?

No I didn't, I forgot about it as it's not installed. Recommended time to run it for?

Also, in the advanced settings for startup and recover where I changed it to not auto reboot on failure, there's an option to write events to system log. Would the BSOD info be posted here? If so, where do I find it?
 
You burn memtest to a CD/USB drive, and it runs before the OS kicks in (so you can eliminate the OS as a confounding variable)

And I'd like to hear what other people have to say, but the 3.3v line seems to be dipping below a fair bit - but certainly not outside of tolerances so I don't think that is a problem. Mine doesn't deviate from 3.4V, but I'm not sure whether its reading properly on my machine.

Let's see what the other guys think, but I think they'll agree it doesn't look to be CPU/PSU.

I'm tempted to try and format. The fact that Stalker ran in March/April on Vista 32, and I got one play through on DOD on Win764 just doesn't sit right with me. I just can't swallow that there might be a hardware fault that bugs out on these two games, but Crysis doesn't kick it out immediately.
 
Yeah, reformatting/reinstalling will be a lot less effort than spending hours trying to figure out a problem that might not even exist

I'll give it a go later I think. I need to back all my stuff up off of my primary partition (Don't want to lose all my bookmarks and stuff this time) and i'll try that.

I've got a feeling something must be bugging out though, otherwise it probably wouldn't reboot upon crashing even when set to not do that.
 
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