Question about Aspire (ATX-AS500W) (atx-as500w 12v) Power Supply

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Missing -5VDC and -12VDC

Bench tested ATX-AS500W PS and it is missing the -12VDC and -5VDC on the pins that plug into the mother board. Is there a fuse to replace?

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Could be.Some do some don't.Some have a circuit breaker. Take the cover off and check. Be careful though as some parts in the power supply can hold a pretty significant charge for quite a while even after the power supply is turned off.If there is no fuse or if you change the fuse and it blows again I would say a new power supply is in order. Good luck.

Posted on Dec 15, 2008

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your connector is of two has total of 24 pin, can be divided into 20 and 4 pins.connect  20 pin  in your mother board .switch on ur psu and connect 4 pins to another port.

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Well, it sounds like it is a mobo problem if u tryed other power supplys, i would test the 4-pin ATX slot in ur mo and see if it is grouding this or shoting it out, umfortualyy u will problem have to have that done professionaly

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