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Old 12-21-2005, 12:34 AM   #1 (permalink)
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Default Weak PSU?

Hello All,

Whenever I launch an application or run a game, my two case fans and CPU fan slow down for a moment. They only seem to slow initially as I launch the app. Is this likely due to a weak PSU?
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Old 12-21-2005, 04:37 AM   #2 (permalink)
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What is your PSU's rated max. output and its brand?

Use a hardware monitoring program (such as Motherboard Monitor/HMonitor, etc.) and monitor the +12V, +5V and +3.3V rails carefully......... the more variation there is in the voltage with respect to time, the greater your chances of experiencing problems from the PSU.

I'm not actually surprised that this change in fan speed happens since loading an app does use a suffcient amount of CPU power (heat, resistance and voltage are all proportional to each other).... but to be on the safe side, you do want to monitor those voltages carefully in case instability occurs.
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Old 12-25-2005, 03:08 PM   #3 (permalink)
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After monitoring the voltage in the BIOS I did realize it was a weak PSU. Replaced it quickly with a new one from NewEgg and it's running much better =) Thanks
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