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Computer powers off/ restarts constantly




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  #1  
Old 30th May 2009, 20:02
New Member Group
 
Default Computer powers off/ restarts constantly

Hello,

I recently assembled this system (about two weeks ago). Specs:

Asus P5Q Turbo Mobo
Intel Core 2 Quad Q9550 2.83 ghz processor
Asus EN9800GT 1Gb video card
2x 2Gb Gskill DDR2-1066 memory
Western Digital 320 Gb Sata HDD
PSU: Corsair 650Watt
Operating System: Windows 7 RC

I originally assembled this computer and installed Windows XP 64, SP2. I ran that problem free for about a week before downloading and doing a clean install of Windows 7 RC. I ran Windows 7 problem free for about a week as well. I hadn't noticed any performance issues, and no hardware conflicts.

About two nights ago, I woke up to find my computer running windows repair. I let that run and restarted my computer. It seemed like everything was running fine until about half an hour later as I was browsing the internet my computer restarted on me. It asked me if I wanted to run safe mode or normal mode due to an improper shutdown, and I did normal mode. Everything seemed fine and I finished what I was doing and turned the computer off for the day. The next day the same thing occured, but I decided to reboot in safe mode and uninstall the windows updates from the previous night. This time I left my computer on and noticed that the frequency of forced restarts was increasing until it was about every thirty seconds. It would also do a hard shut down and fully power off by itself and then power on immediately by itself without me touching any of the power buttons.

I turned off my computer and consulted the Windows 7 forum to see if maybe the OS was causing my problems, but after doing some troubleshooting there (running the backup OS the mobo comes with, testing the memory sticks one at a time, checking the CPU temp and reinstalling new thermal compound {temp idles around 85 degrees C, and new thermal compound is Arctic 5}) I realized that the restarts occur equally when I'm in Windows, Bios, or the mobo OS.

Way too long story short, my computer restarts/shuts off-then-on constantly, with an increased frequency the longer I try to leave the computer on. I checked the PSU on an older system and it worked just fine, and I had two weeks of trouble free operation (one with each OS) before this started. Any Ideas?

Thanks in Advance

Nate
  #2  
Old 31st May 2009, 03:19
Donor Group
 
Default Computer powers off/ restarts constantly

Cut the PC down to a bare minimum.

Mobo
CPU
RAM 1 stick
PSU
(GPU if your mobo doesn't have any onboard)

And boot up, see if it still does it, try the other stick of RAM instead, etc.

Also have you changed any BIOS settings at all?

Remove the CMOS battery wait 10 secs and then replace it.


If all that fails, or it's not apparent that anything else is causing itfrom the strip down, then you may have recieved a dodgy mobo.


EDIT:
85 C?!?!

That's the problem I would have thought.

My Q6600 is OC'd beyond your clock speed, and it runs on full load at 56 C

Send back the CPU, get a replacement.
__________________

My System: FordyPC

Processor(s):
Quad Q6600 Kentsfield 2.66@3.45GHz
Motherboard:
Asus P5Q/L PRO (Intel P43, ICH10)
RAM Memory:
PNY XLR8 4GB @ 1066MHz
Graphics Card(s):
PNY nVidia GeForce 9400 GT 512MB
Sound Card:
Hard Drive(s):
Seagate HDBarracuda 1x 1TB 1x 250GB
Optical Drive(s):
LG (HD)GGCH20L / LG GH22NP20AUAA50B
Case / PSU:
Antec Sonata III & Earthwatts 500W
Cooling:
Stock
Network / Internet:
Gigabit LAN, FireWire & WG111v2
Monitor(s):
2 x Acer P193WAd
Operating System(s):
XP PRO x86/XP PRO x64/Win7 RC1 x64
  #3  
Old 31st May 2009, 14:55
Member Group
 
Default Computer powers off/ restarts constantly

are you certain your cpu cooler is on properly? as fordy said, thats MILES to hot!
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