Having problems with your Dell Dimension 5100 (D51L1) PC Desktop ?

Power failure & dell dimensions 5100 will not turn on

\015 While away today, there was a power failure. Now dell dimensions will not turn on. Have checked power supply and its OK. Have checked breaker, no problem. There is a green light on inside of the dimensions and the monitor & sounds lights are on. Is there anything else that I can do before taking to a service person?\015

Answers :

I had a similar problem. It does boil down to the power supply or the motherboard. You can't just check the voltage off of a pc power supply it requires a load to work at all. You can buy a power supply tester at most computer stores. At that point you would:
1. disconnect power supply from motherboard
2. plug big jack that was in motherboard into tester
3. turn on power supply and see what the lights say.

OR (be sad here) If you do the above and the power supply is good then a pretty good chance your motherboard took a hit and is DOA.

Try the solution of unpugging stuff first. But a single light on your motherboard is bad news. When I had that it indicated that a capacitor on my motherboard had fried and my motherboarde went with it.


Hey.

Be sure to check the power supply for the correct voltage outputs. Try also restarting the BIOS, there should be a reset jumper located next to the bios chip. If these steps are unsuccessful, then try the following sir:
\015\012\015\012
Remove modem from system.\015\012
\015\012\015\012
\015\012Clear CMOS [
Complementary metal–oxide–semiconductor]. If all else fails, just remove the battery for 10 minutes. Remove all non-essential parts, leave nothing but the following\015\012connected to motherboard or power supply:\015\012
\015\012\015\012
\015\0121. video card \015\012
\015\0122. x amount of memory modules (i.e the min needed) \015\012
\015\0123. CPU\015\012+ headsink fan
\015\0124. Power switch plug\015\012
\015\012
Then turn system AC power back on and try to start system. If it\015\012
\015\012fails, try clearing CMOS and retry. \015\012

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