Question about PC Desktops
Got a new power supply for Shuttle sb81p. Will not power up! Upgraded from the 350 to the 450. Plug it all in, and it's just dead........any suggestions would be appreciated.
Remove the PSU from the case.
Plug it to power.
Turn it on
Using a paper clip, short circuit the green wire pin with the the black wire pin on the 24 pins connector.
If the PSU fan start, remove the clip. The fan should keep spinning. That means that the PSU is working.
If the PSU is working, then the power up pins on the mother board might not be shortcircuited by the front panel switch.
Connect the PSU to the motherboard and to the power, turn it on. On the motherboard, locate the power up pins and short circuit them with the paper clip. If the computer powers up then there is a problem with the power on switch.
If the PSU does not start at all, return it.
If you can't return it, unplug from power, open it (warrenty voids!) and look for a fuse that looks like a one inch glass tube with metal caps. inside should be a wire. If the wire is broken, buy a new fuse in Radio Shack.
Hope that helps.
Posted on Dec 28, 2007
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