Computer shutting down while playing wow

[joshua12]

Hey. My computer has been having issues for about 2 weeks now. One day i turned on my computer and it was randomly shutting down, i downloaded Speed Fan (A cpu / gpu / everything else temp monitor ) and realized that my cpu was overheating... i instantly thought that was the problem and called where i got it, and got a new one shipped out. I then installed it and was fine for about a week, my computer was porforming at what it always was.. ( 75 - 80 fps ). No more over heating.. after about a week the shut downs began again, i put another fan up against my computer equaling to 3.. when i run wow i run at about 75 c on the cpu meter, which is not bad.. and it still happens. my fps has dropped huge, and i am now having to run low settings to only got 20-30 in heroics.. i am not sure what the problem could be. It just turns off automatically, not shut down.. the turn offs are in the worst places possible too. and i dont want it to happen in raids.. please helpp

(Yes i have opened the case and looked for dust, cleaned it out, no dust at all)
My specs are..

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System Information
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Operating System: Windows XP Professional (5.1, Build 2600) Service Pack 2 (2600.xpsp_sp2_gdr.080814-1233)
Language: English (Regional Setting: English)
System Manufacturer: MSI
System Model: MS-7399
BIOS: Default System BIOS
Processor: Intel(R) Pentium(R) Dual CPU E2200 @ 2.20GHz (2 CPUs)
Memory: 2048MB RAM
Page File: 237MB used, 3702MB available
Windows Dir: C:\WINDOWS
DirectX Version: DirectX 9.0c (4.09.0000.0904)
DX Setup Parameters: Not found
DxDiag Version: 5.03.2600.2180 32bit Unicode

---------------
Display Devices
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Card name: NVIDIA GeForce 8500 GT
Manufacturer: NVIDIA
Chip type: GeForce 8500 GT
DAC type: Integrated RAMDAC
Device Key: Enum\PCI\VEN_10DE&DEV_0421&SUBSYS_230B1682&REV_A1
Display Memory: 512.0 MB
Current Mode: 1024 x 768 (32 bit) (60Hz)
Monitor: Plug and Play Monitor
Monitor Max Res: 1600,1200
Driver Name: nv4_disp.dll
Driver Version: 6.14.0011.8208 (English)
DDI Version: 9 (or higher)
Driver Attributes: Final Retail
Driver Date/Size: 2/18/2009 14:44:00, 6185088 bytes
WHQL Logo'd: Yes
WHQL Date Stamp: n/a
VDD: n/a
Mini VDD: nv4_mini.sys
Mini VDD Date: 2/18/2009 14:44:00, 6308224 bytes
Device Identifier: {D7B71E3E-4761-11CF-2255-000300C2CB35}
Vendor ID: 0x10DE
Device ID: 0x0421
SubSys ID: 0x230B1682
Revision ID: 0x00A1
Revision ID: 0x00A1
Video Accel: ModeMPEG2_C ModeMPEG2_D ModeWMV9_B ModeWMV9_A
Registry: OK
DDraw Status: Enabled
D3D Status: Enabled
AGP Status: Enabled


any help?

[RicheemxX]

Quote:

when i run wow i run at about 75 c on the cpu meter, which is not bad

Sorry to say yes 75C is bad! Heck I don't like running anything over 50C. If your CPU is getting that hot then its also likely that your GPU is over heating. The combo of the two is likely the issue.

[joshua12]

my gpu does not get hot at all.. while playing wow.. some SS

just alt tabbing playing wow
ImageShack - Image Hosting :: 52170520.png

1 min after alt tabbing playing wow
ImageShack - Image Hosting :: 54408919.png

about 3 min after alt tabbing..
ImageShack - Image Hosting :: 91800685.png

[RicheemxX]

If those temps are right and you are running at 78-80C with very low CPU usage then that would be the first problem to fix. Is the a custom built PC, pre-manufactured or what?

[joshua12]

I ordered the parts all in a kit, so yes it was custom built.

[RicheemxX]

What HS/Fan are you using, are you sure that thing is on there right? Even with an OEM cooler at stock speeds there is no way you should be reaching those high of temps.

You might try realtemp or coretemp to make sure its not just speedfan.

[joshua12]

coretemp comes up with the same results, and even if it wasnt just speed fan wouldnt explain why my computer turns off, during gaming. and yes it's on right, my dad even took it out and re applied it to make sure..

this is just about the fan im using(close close specs)
Masscool 8W553 Socket 775 Aluminum CPU Cooling Fan 8W553B1M3 at TigerDirect.com