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Old 08-29-2007, 09:35 AM   #1 (permalink)
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Default PC randomly shuts down!!!

Hi all!

So my pc has been up and running perfectly without any problems for under 2 years now. But ever since last week my computer has been randomly turning itself off.

Sometimes it happens once or twice in about 8 hours, and sometimes it happens 3-4 times in a row in just a few minutes.

I know its not the ram as the computer would usually reset,crash or give me a bluescreen. Im using a good 400w PSU but its around 4 years old.

I have checked the CPU temperature and it seems fine, around the 52 degree mark. The fan speeds are fine.

I checked the voltages and someone told me the 12v is a bit low.
Current values are:
Vcore - 1.39
+3.3 - 3.49
+5.0 - 4.95
+12.0 - 11.65

I then realized I had installed new gfx drivers for my radeon x1600 card last week (when the problems first started occuring). So I am thinking this has something to do with the random shut downs. This guy then told me that th problem is due to the "PCI-E power draw".

Does anyone know what steps I can do to fix this? should uninstall my gfx card drivers and get older ones? help!
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Old 08-29-2007, 10:48 AM   #2 (permalink)
 
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Default Re: PC randomly shuts down!!!

Use system restore to restore your previous settings.
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Old 08-29-2007, 12:22 PM   #3 (permalink)
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Default Re: PC randomly shuts down!!!

tried, didnt work
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Old 08-29-2007, 12:25 PM   #4 (permalink)
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Default Re: PC randomly shuts down!!!

Its also possible that your power supply is just getting tired and weak. Power supplies do die after all
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Old 08-29-2007, 12:51 PM   #5 (permalink)
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Default Re: PC randomly shuts down!!!

Yeah i could only imagine it being ure psu, also considering its pretty old.
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Old 08-29-2007, 01:06 PM   #6 (permalink)
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Default Re: PC randomly shuts down!!!

Newegg.com - HIPER HPU-4M480-PS ATX12V v2.2 480W Power Supply 100 - 120V AC cUL,TUV,CB,CE,FCC - Retail

should solve your problems, what are you system specs? you may not need asuch a powerful PSU but a good one
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Old 08-29-2007, 02:52 PM   #7 (permalink)
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Default Re: PC randomly shuts down!!!

it was a hiper psu i think 400w, i'll double check soon.

i just hate to spend about £50 on a new PSU and find out its not the problem! (im in uk).

amd 64bit 3500+, 1 gig ram, radeon x1600, Asus A8N-SLI SE mobo.
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Old 08-29-2007, 02:58 PM   #8 (permalink)
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Default Re: PC randomly shuts down!!!

oh soz, i am too but too many people here are american ,

Coolermaster eXtreme Power 380W PSU - ATX12V V2.01 20+4pin 1x PCI-E 2x SATA

£33 ok? oh and stick around, may people join and do a post or two then never post again
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Old 08-29-2007, 03:15 PM   #9 (permalink)
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Default Re: PC randomly shuts down!!!

Before you buy anything defiantly roll back your video drivers. If that doesn't work then I would agree that your PSU is 'out to pooch'.

BTW your voltages are all fine. the +12 can drop quite a bit and still be fine.
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Old 08-29-2007, 03:30 PM   #10 (permalink)
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Default Re: PC randomly shuts down!!!

great! thanks for all the replys people. and yeah i'll stick around can learn alot from these forums
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