enzo matrix :
Unscrew, remove, screw back in, done pretty much.
Not so useful information.
I upgraded the case for my motherboard. Unfortunately, the new case has separate connectors for the power, reset, and HDD light on the front panel, instead of the single block that the HP case had.
So, I'm not sure which cable goes on which set of pins on the F_PANEL block. There's another block of connectors nearby, and on the diagram (http://h10025.www1.hp.com/ewfrf/wc/document?docname=c01635734&lc=en&cc=us&dlc=en&product=3980095#N449) it looks like there is a set of pins with a "PW" label. I'm not sure if that's supposed to be for the CMOS or BIOS password reset or if it's for power. (Which is normally abbreviated "PWR".)
Oh well, I guess I will just have to rip the case apart until I can figure out which wires go to the power button.
So much for good documentation..... </sigh>