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System won't Start-Up

By dmiles ·
Re-Building a PIII system,it has minimum hardware,
Configuration
Asus motherboard
800Mhz CPU
CD-ROM
The system will not boot up when the power switch is turned on,nothing runs,no cpu activity,fan does not start,no hard drive
System light on motherboard does come on
Any ideas???????

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by Mr.Wiz In reply to System won't Start-Up

Have you checked the power supply outputs yet? That would be my first thought. Second would be a bad motherboard.

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by dmiles In reply to

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by mjd420nova In reply to System won't Start-Up

It does sound like the power supply has failed.
Unplug the power to the CD-ROM and try again,
if still no boot, the p/s is bad.

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by dmiles In reply to

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by w2ktechman In reply to System won't Start-Up

It could be from several things dmiles. I would first suspect the PS as suggested. But I have seen the switch cause this issue (power switch), along with case sensors (some cases have sensors. If a door is open, it will not power up).
If all of those checkout, look to the MB.
On the MB, make sure that everything is plugged in properly, including the switch, and that the wires connect to their proper places.
Put a new cmos battery in place.
reset the cmos
if these dont work, try another MB

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by dmiles In reply to

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by Nilt In reply to System won't Start-Up

Could be a bad power switch. The reset is identical on most ATX boards; try putting the wires for that on the header for the power switch.

Also, if you do a lot of this sort of thing, this power supply tester would come in handy. For under $20 I find it paid for itself the first time I used it.

http://tinyurl.com/e4sz6

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by dmiles In reply to

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by SypherSoul(sp) In reply to System won't Start-Up

The power supply needs to be replaced. You could purchase a power supply meter on geeks.com for about 10.99!!

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