On Wed, 15 Mar 2006 14:59:08 -0500, "Charlie Bress"
wrote:

I am working on an older HP Pavilion Model 6830.
The first complaint is that it would not turn on. I pressed the on switch
several times and it fired up.
Now it will not shut down. Even pulling out the line cord doesn't reset it.
Plug the cord back in and it is still on. The p/s is an ATX-105.

There is nothing else attached. No keyboard, no monitor. I am just going by
the sound of the fan and front panel LED.

The power on switch goes to the mobo through a connector. Unplugging this
connector and testing the switch it tests good for continuity. It is a
momentary contact switch which tells me that there is latch someplace. Is
this latch somewhere on the mobo or is it in the p/s itself?

Advice please.

Charlie



It's probably not the power supply. The power it turned on and off by
the motherboard. The front power switch just tells the motherboard to
send the power on signal to the power supply. Check the motherboard
for bad caps near the CPU:

http://cquirke.mvps.org/badcaps.htm

If you don't see any of those, try removing the CMOS battery (a flat
"watch" battery on the motherboard) and leaving it unplugged over
night. Check that the CMOS battery reads at least 3v. A bad CMOS
battery can cause problems.
Andy Cuffe