PC randomly turning off (Updated not the power supply)

[nichrf36]

***Update****

Got a new power supply....antec 550 sli computer is still turning off when idle. I run vista 64bit....only thing in idle that turns off is the monitor. I ran a sandra stress test passed fine.

My next culprit could be software/vista? Gonna leave my pc in the bios screen tonight and see what happens. My motherboard is the ABit fatalaty SLI....got it in a combo deal at frys but they only had left the open box ones?

******

Built a new rig with a 4500 dual core, one 8800gt, abit sli motherboard. Nothing is OC'd at this point. The psu is a carry over from my last pc-500w.

After an hour or so the pc shuts down on its own, wont turn back on for a few minutes. The lights on the motherboard stay on tho. Probably a bad or insuffient PSU? Just wanna make sure its that before i run to frys and drop a 100$ on a new one haha!

Big thanks

Update: Speedfan is showing my +12v @ 6.02v ?

 

[oynaz]

The PSU is suspect, but there are other possibilities. Does the rig shut down no matter what? Or are you doing something specific?

 

[nichrf36]

Originally posted by: oynaz
The PSU is suspect, but there are other possibilities. Does the rig shut down no matter what? Or are you doing something specific?

It shuts down no matter what.....I thought it was weird when I left it on at night and in the AM it was shut off

 

[happy medium]

What is the name brand on the psu?
Could be heat also.

 

[Glavinsolo]

Can you post some temps?

 

[nichrf36]

Originally posted by: Glavinsolo
Can you post some temps?

System temp is 27c
Cpu 32c

Im using a rosewill 500w power supply with fan on auto....had no problems on my last build (however only a single core core athlon 3200 with ati 1900xt vid card)

i did read rosewill can be shady for psu's

im gonna go out and buy a new psu, as i will be upgrading to sli shortly anyways (as soon as bb has another 8800gt in stock haha)

 

[happy medium]

This one is nice and highly recommended

http://www.newegg.com/Product/...x?Item=N82E16817608007

 

[nichrf36]

***Update****

Got a new power supply....antec 550 sli computer is still turning off when idle. I run vista 64bit....only thing in idle that turns off is the monitor. I ran a sandra stress test passed fine.

My next culprit could be software/vista? Gonna leave my pc in the bios screen tonight and see what happens. My motherboard is the ABit fatalaty SLI....got it in a combo deal at frys but they only had left the open box ones?

******

 

[Nocturnal]

Personally I would run a stress test on the memory using Memtest. Also check for puffy capacitors.

 

[nichrf36]

will run memtest tonight....what exactly are "puffy capacitors?"

 

[nova2]

bad caps can look like these:

http://images.google.com/image..._q=bad%20caps&safe=off

 

[shamshoumy]

i got the same problem with the 8800 gt it shutdown all the time though in my case it doesn't shutdown when i am in idle just when i play games i also thought it was my power supply so i got a thermaltake 600w but it didn't rlly do the job my monitor keeps shuting down though my computer continues working for like 5 seconds and then i can hear the game stucks . i was advised to down clock wanted to know what u think btw i got a e4500 core2dou CPU too and its around 17C and the GPU on the card is 45C

 

[0roo0roo]

take side of case off, blast with box fan.
if its really a heat issue, it'll run fine.

 

[shamshoumy]

i already tried that i even tried to put new thermal grease on the GPU cooler idk if it was that good of idea but it helped lol my cards GPU is now 43C anyway i am thinking to buy a new body cooling for my 8800gt (sorry for my bad english ) can you check it out "http://www.thermaltake.com/pro.../CL-G0102/cl-g0102.asp" heres a link for what i am planning to buy
and one last thing i got a 8800 gt gigabyte with the zalman fan "http://www.gigabyte.com.tw/Pro...ec.aspx?ProductID=2720" heres a link for its specification
sorry for the too much info but i am kinda desprate i don't want to waste more money on things i don't need
thnx alot