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23-01-2004, 01:18

Just now have had a problem, I think the only reason the PC is on not is fluke.

I'm using a GA7VAX with 2200+ 350W power supply.

The pc just turned itself off, didnt restart. The restart button didnt work. Holding down the soft power did but the pc didnt restart.

I turned the power off at the power supply and back on again. The PC started and rebooted straight away - didnt need to press the soft power button :S

It did this a number of times with varying results with the soft power button and restart button, they sometimes worked, sometimes not. But every time i now turn off the power at the supply unit it starts immediatly.

I had a look at the voltage levels, I have recently installed 2 nics but its been running for over a week with them in, power levels seem slightly low to me - should they be equal to or above?

3.3v = 3.05
5v = 4.59
12v = 12.2
5vsb = 4.8

I had a problem in the past were the HDD indicator light stayed on dim all of the time - i disconneted it.

I cant identify where the fault lies:
- The power unit?
- The reset and soft power switch?
- The front pannel connectors/pcb on the mobo?

Any advise guys? I dont really want to be replacing stuff that might not be broken.

Thanks.

23-01-2004, 01:18	#1
John Doe Guest Posts: n/a	Random power supply Just now have had a problem, I think the only reason the PC is on not is fluke. I'm using a GA7VAX with 2200+ 350W power supply. The pc just turned itself off, didnt restart. The restart button didnt work. Holding down the soft power did but the pc didnt restart. I turned the power off at the power supply and back on again. The PC started and rebooted straight away - didnt need to press the soft power button :S It did this a number of times with varying results with the soft power button and restart button, they sometimes worked, sometimes not. But every time i now turn off the power at the supply unit it starts immediatly. I had a look at the voltage levels, I have recently installed 2 nics but its been running for over a week with them in, power levels seem slightly low to me - should they be equal to or above? 3.3v = 3.05 5v = 4.59 12v = 12.2 5vsb = 4.8 I had a problem in the past were the HDD indicator light stayed on dim all of the time - i disconneted it. I cant identify where the fault lies: - The power unit? - The reset and soft power switch? - The front pannel connectors/pcb on the mobo? Any advise guys? I dont really want to be replacing stuff that might not be broken. Thanks.