Problems with restarting computer

[Guest]

Left for the weekend and shutdown computer, but didn't wait for shut down to
be complete. Now I'm back but I can't get the computer restarted. I've
unplugged and replugged everything. It's like I have no power to the CPU...
All other components (printer, speakers, monitor, etc.) are on the same
power surge protector and have power but I can't turn on the computer.
Neither button on the front or back restores power to the CPU? If I hit menu
on the monitor it seems to be going to hibernate and then goes blank. HELP!

 

[Guest]

sounds like a bad power supply - they don;t last forever. also some have a
master switch on the back - check it out.

 

[Guest]

OK I got the power supply replaced w/ extended warranty, but I still can not
get my operating system (Windows EP) running. I tried F8 when
restarting/powering up but to no avail! Could the power supply failure have
trashed my hard drive? Or could it be my monitor as it keeps going into power
standby mode? And lastly I have no power to the mouse...
The power surge protector is still working so not sure if it was a
storm/lightening problem, nothing else in the house has any problems!
I don't want to call the geek squad but they may be my next call

 

[w_tom]

This is where manufacture diagnostics apply. You don't konw if it is
hardware or software problems. Break a problem into parts. Analyze
parts separately. Execute comprehensive hardware diagnostics (that run
without Windows). Such diagnostics are provide free by responsible
manufacturers. Otherwise obtain diagnostics from the component
manufacturer.

For example, is disk drive working? Disk drive diagnostics from that
disk manufacturer are exectued (avoid any write tests). If OK, then
you move on to other possible suspects.

No power to mouse means either mouse is failed or that fuse to mouse
port has blown. You don't say if it is USB or PS/2 type mouse.

Surge protector too close to transistors does not protect from
surges. In fact, we have traced damage through powered off computer
and through other computers in that network because an adjacent surge
protector shunted a surge into the computer. An effective surge
protector shunts. It makes a 'less than 10 foot' connecton to earth to
divert surges long before surges get near to computer.

Long before doing anything, measure power supply voltages with a 3.5
digit multimeter. Lights can glow and disks can spin; and still power
supply voltages are defective. Measure voltages on any one purple,
red, orange, and yellow wires from power supply to motherboard. No
just for good / no good. Numbers for voltages are further informative.
Any voltage below 3.23, 4.87, and 11.7 is suspect - either a powr
supply problem or something else. Even with a new power supply, you
still don't know if voltages are OK. Get the meter to get those
numbers.