- Mar 19, 2010
- 126
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- 18,710
For a few months I experienced BSODs that related to graphics card drivers.
A couple of weeks ago my computer would not boot (the fans all started but the power LED appeared to flicker). I measured some of the PSU (Thermaltake 705w 700 W, now eight years old) voltages and the 12 V output was 10.3 V and the 5 V output was 3.5 V. I bought a new PSU (XFX TS 750 W - more than adequate), however the PC will not boot.
The POST speaker emits a single long beep which repeats after several seconds, perhaps suggesting that the PC is repeatedly resetting. I have uploaded an audio recording here.
Could anyone advise on:
My computer contains the following components (among others):
OS: Win 7 64-bit
Mainboard: Gigabyte GA 790FXTA-UD5
CPU: AMD Phenom II 965 X4
RAM: OCZ Black Ed 2x2GB DDR3-1600 + Corsair 2x2GB DDR3-1600
Graphics: 2 x Crossfired Sapphire HD 5770 1GB GDDR5
A couple of weeks ago my computer would not boot (the fans all started but the power LED appeared to flicker). I measured some of the PSU (Thermaltake 705w 700 W, now eight years old) voltages and the 12 V output was 10.3 V and the 5 V output was 3.5 V. I bought a new PSU (XFX TS 750 W - more than adequate), however the PC will not boot.
The POST speaker emits a single long beep which repeats after several seconds, perhaps suggesting that the PC is repeatedly resetting. I have uploaded an audio recording here.
Could anyone advise on:
■how to proceed?
■the probable mode of failure of the PSU (now eight years old; I've opened and inspected it and can't see any obvious damage)?
■the possible damage sustained by the other components (I was under the impression that under voltage was not a risk)?
My computer contains the following components (among others):
OS: Win 7 64-bit
Mainboard: Gigabyte GA 790FXTA-UD5
CPU: AMD Phenom II 965 X4
RAM: OCZ Black Ed 2x2GB DDR3-1600 + Corsair 2x2GB DDR3-1600
Graphics: 2 x Crossfired Sapphire HD 5770 1GB GDDR5
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