Power problem

[emcron]

I'm having problems with an E-machine. Yesterday I unpluged everything(the keyboard, mouse and power cord) so I could use it to test another machine. Today I plugged everything back in and the E-machine wont turn on at all. No fans not hardisk nothing. This machine was working fine the day before, any suggestions?
Thanks in advance.

[Dominus]

You've probably already tried this, but did you check the main power switch at the back of the computer? Perhaps you nudged it into the "off" position accedentally.

[emcron]

I wish it was something as simple as that but no.

[welsh wizard]

hi
can you check to see that power is reaching unit, somtimes when unpluging if you pull on cable and not plug a wire breaks internally and you can't see brake, check it with volt meter if you hace one.

[emcron]

Today I open the power supply and found the fuse blown. So I guess that is the problem. I'm going to replace it but is the motherboard blown now. I guess I'll find that out soon enough.

[Nathan Gleit]

you may have a bent pin on one the connectors you removed and replaced during testing. After replacing fuse (with same rating!) disconnect PS from motherboard and anything else its driving.Then turn on ps , check if fuse blew again, if so make sure that the voltage select switch ,if your PS has one ,is set correct(120/240). If the switch was set correct and fuse blew , replace supply. If fuse does not blow, then plug in MB but not other devices like mouse, KB,Monitor, HD,CD-rom,floppy... Turn power on. If fuse didnt blow, start plugging in devices one at a time(with power off, then turn on) till fuse blows. This way you can find the device thats shorting the supply. I would visually check pins on everything (mouse,KB, monitor etc) before doing anything else....good luck
Nathan G

[emcron]

Thanks for the help I'll post if everything goes well.