Detecting a PSU problem.

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Keipi

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#1 Keipi
Member since 2009 • 163 Posts

So, the past week i've been getting some weird lock ups.
It happens when i'm playing any game for 1h+ (Time varies but mostly 1 hour+ , sometimes it doesnt happen at all)

I do know amps/brans matter alot for PSU's.
As a note; I know this PSU is REALLY cutting edge for my build, I'll be buying a new system soon but i want to be sure its the PSU and not the HDD/GFX card as i'm dragging those over to the new build.

It's a CRS -MAX- output of 400W, +12V1 14 Amps, +12V2 15 amps, +5V 30Amps, -12V 0.8Amps, +3.3V 28Amps, +5 VSB 2.5Amps.
I can write the model name down if anyone cares but its upside down and i've searched for it myself and didnt get any succes :P

Detailed problem -> So basically as soon my PC is on for a long time (1+ Hour mostly) and i play a CPU+GFX intensive game liiiike... Borderlands/Dragon Age, My screens will suddenly turn black, I'll hear a sound for 2 seconds (Trough my headset, just a random sound repeating itself and making you think its stuck) and then it turns off and re-boots after ~5 seconds.

Things i've found out till now; It only happens when a game is both GFX and CPU intensive, Like CoD 4 wich where my CPU goes up to 50-70% usage runs completly fine. Tho Dragon Age/Borderlands wich my PC doesnt like THAT much where my CPU goes into the 80-90% usage it will turn off after a while.

Specs; E6750 @ 2.66Ghz 1.07V, 2GB DDR2 @ 800Mhz, Gigabyte 965P-DS3 Rev 3.3 Mobo, 8800GTS 640MB, HD403LJ Samsung 400GB HDD.

EDIT: I forgot to mention; According to HWMonitor the Volts on my +12V line will varry from 11.80 to 12.10 wich i find fairly big jumps. The rest of the lines just change by 0.01V-0.02V

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04dcarraher

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#2 04dcarraher
Member since 2004 • 23857 Posts
Well what are your cpu,motherboard and gpu temps idle and max load.
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jcohenx

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#3 jcohenx
Member since 2003 • 1315 Posts

Doubtful that it's your HDD, do a disk integrity check if you're really concerned. I agree with the previous poster that you should check your GPU and CPU temps 30-45 min into game play, also check that all your fans are working.

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Gamias3003

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#4 Gamias3003
Member since 2009 • 57 Posts
8800 GTS is a card with lots of power appetite. Especially in amperes. Your system is running near the edge of that. 8800 power requirements are 26 to 28 amperes of 12Volts (depends on the model). You have a total of 29 but you have other components that also draw power from your PSU. But all that is just theory, I have seen 400W and 350W PSU run demanding systems perfectly. So in order to check if this is a PSU problem I suggest you do the following: - Disconnect all DVD/CD Rom and extra hard disks from the power (if applicable) - Remove all the extra PCI Cards -disable onboard extras (firewire, LAN, audio etc) just keep the nessesary in order to play the game and check if you are having the same problems. If everything runs normally then you should go for a bigger PSU. I also suggest you buy a voltage regulator (like APC) in order to be 100% certain that this is not a problem from the current of the public network. If you do not get any successful results I suggest you go for plan B. Plan B: Make a BIOS Upgrade, check the RAM with a memtest program. If possible, make clean installations of Windows and programs. Give us a feedback on that. Good Luck
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Keipi

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#5 Keipi
Member since 2009 • 163 Posts
Thanks :) CPU temp stays under 50C on full load, And my GTS goes into the low 80s @Gamias, I've got most unnecesary components out already. (Only have a mobo, CPU, ram, GFX and a HDD + 2 Fans) And i'll try the memtest this weekend - Bios is on its latest version ;)
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Hekynn

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#6 Hekynn
Member since 2003 • 2164 Posts
[QUOTE="Keipi"]Thanks :) CPU temp stays under 50C on full load, And my GTS goes into the low 80s @Gamias, I've got most unnecesary components out already. (Only have a mobo, CPU, ram, GFX and a HDD + 2 Fans) And i'll try the memtest this weekend - Bios is on its latest version ;)

Ya those temps are just fine and yup from what you said its the psu pick up a corsair 750tx psu great psu.
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04dcarraher

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#7 04dcarraher
Member since 2004 • 23857 Posts
[QUOTE="Keipi"]Thanks :) CPU temp stays under 50C on full load, And my GTS goes into the low 80s @Gamias, I've got most unnecesary components out already. (Only have a mobo, CPU, ram, GFX and a HDD + 2 Fans) And i'll try the memtest this weekend - Bios is on its latest version ;)Hekynn
Ya those temps are just fine and yup from what you said its the psu pick up a corsair 750tx psu great psu.

Even a 650w would do the job too.