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8.8

PSU Failure Symptoms

Asked by Stewie614 in General Computer Systems

Tags: failure, symptoms, psu, power, supply

Can anyone give me a general list of Power Supply failure behavior, above the obvious (no power, smoke or fire). I built the system about 2 years ago (AMD processor on a MSI motherboard, 1GB RAM). The unit and peripherals are plugged into a Belkin Surge Protected UPS.

Last night I replaced the CPU Fan as the old one had become VERY noisy (worn barrings). After about 2 hours of completely normal operation the system just shut itself off. No warning, no error beep from the board .. it just died as if the plug had been pulled from the wall. The system restarts just fine and doesnt even register an error or give me the nebulous (Windows has recovered from a serious error) message.

It did it again this morning, after being on for only an hour. I have had no other problems with peripherals or the OS. Before I start replacing the unit bit by bit, I want to know if this sounds like a failing power supply? The diagnostic tell-tails on the back the machine do not reflect anykind of Motherboard failure.

I think that the new fan may be pulling just enough to tip the balance on the already failing supply.

Thanks in advance.
 
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[+][-]11/07/05 07:02 AM, ID: 15239218Accepted Solution

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About this solution

Zone: General Computer Systems
Tags: failure, symptoms, psu, power, supply
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Solution Provided By: mwnnj
Participating Experts: 1
Solution Grade: B
 
[+][-]11/07/05 08:03 AM, ID: 15239808Author Comment

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[+][-]11/08/05 05:45 AM, ID: 15247084Author Comment

Often, when Experts are collaborating with members who have asked questions, they will request additional information about the problem. Askers respond with an author comment like this one.

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