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DELL model AC305AM-00 power supply - needs repair

Posted over a month ago
Winnipeg, MB R2J 3C5(View Map)


DELL model AC305AM-00 PC power supply. Rated 305 Watts. Use with OPTIPLEX and other DELL desktop PCs.

There is a problem with this supply that prevents it working with a PC motherboard. It can be turned on with the normal "connect the green wire to ground", and all of the voltages appear to come up normally: +5V, +12V, +3.3V, -12V, etc. However, the "POWER GOOD" signal stays stuck low. I did replace 4 bulging capacitors, but that has not resolved the POWER GOOD problem. I've got too many other projects to work on, but maybe you have time to get this one working? I'll give you my notes too.

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