Power Supply Variance
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I have a PC that randomly shuts off after being on for more than 10 minutes. A couple of times, I've been on the BIOS setup screen, and the hardware monitor has shown that the 12 volt supply drops below 11 volts to around 10.3 volts. About two seconds after the voltage drop, the PC shuts off. Is that enough of a variance that I can be confident it's the power supply causing it to shut off?
The difficult we do right away... ...the impossible takes slightly longer.
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I have a PC that randomly shuts off after being on for more than 10 minutes. A couple of times, I've been on the BIOS setup screen, and the hardware monitor has shown that the 12 volt supply drops below 11 volts to around 10.3 volts. About two seconds after the voltage drop, the PC shuts off. Is that enough of a variance that I can be confident it's the power supply causing it to shut off?
The difficult we do right away... ...the impossible takes slightly longer.
My first thought would be a bad power supply. If you're brave enough to open the case of the supply and not shock yourself on a charged cap, look for bulging capacitors in it. It's also possible your motherboard may have a bad VRM stage or bad caps there too. Eletrolytic caps on a motherboard are not common any more. They tended to last about 5 years whereas the polymer caps that replaced them last for about 20+ years.
Asking questions is a skill CodeProject Forum Guidelines Google: C# How to debug code Seriously, go read these articles.
Dave Kreskowiak -
I have a PC that randomly shuts off after being on for more than 10 minutes. A couple of times, I've been on the BIOS setup screen, and the hardware monitor has shown that the 12 volt supply drops below 11 volts to around 10.3 volts. About two seconds after the voltage drop, the PC shuts off. Is that enough of a variance that I can be confident it's the power supply causing it to shut off?
The difficult we do right away... ...the impossible takes slightly longer.
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It's almost a 15% loss of voltage, which is definitively significant enough to screw things up.
"Five fruits and vegetables a day? What a joke! Personally, after the third watermelon, I'm full."
Thank you, I feel better about springing for a new power supply now. :-D
The difficult we do right away... ...the impossible takes slightly longer.
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My first thought would be a bad power supply. If you're brave enough to open the case of the supply and not shock yourself on a charged cap, look for bulging capacitors in it. It's also possible your motherboard may have a bad VRM stage or bad caps there too. Eletrolytic caps on a motherboard are not common any more. They tended to last about 5 years whereas the polymer caps that replaced them last for about 20+ years.
Asking questions is a skill CodeProject Forum Guidelines Google: C# How to debug code Seriously, go read these articles.
Dave KreskowiakI'm going to replace the power supply, so we'll see what happens. :thumbsup:
The difficult we do right away... ...the impossible takes slightly longer.
