Adam said:On a side note, the Antec case's front panel power switches seem really
I may need to go buy a switch button for PWR-GND pins. Any recommendations?
Alas, cases vary what physical mounting is used for the Power switch
even between models from the same vendor. Even the throw length (how
long is the stem sticking out of the switch) can vary. You'll have to
see if you can pop off the front cover of the case to get at the
switch(es) and then check how they mounted the switch to the case.
Put an ohmmeter or continuity tester across the PWR leads from the case
switch going to the mobo PWR pins. See if it shorts when you depress
the case switch. Wiggle the button around to see if it has a flaky
connection. If the Power button and switch work okay that came with the
case, that's not your power up problem.
Does the system power up if you take a jumper and put it across the 2
pins on the mobo header for PWR? Don't leave it on the pins. Just push
on and pull off. Or, like Paul mention, just temporarily short from PWR
pin to a GND pin. If the shorting works, it's not a problem with the
Power button and switch in the case nor a problem with the soft logic on
Have you disconnected everything from the PSU except the required mobo
connections (24-pin and 8-pin headers), removed all but one HDD, removed
all but one memory module, yanked all the USB devices (except keyboard
and mouse), and even pulled the video card (if the mobo has onboard
video) to reduce to minimal load on the PSU?
Again, do you see the CPU spin or start to spin and then stop when you
push on the case's Power button? Do you hear the HDD spin up? Does the
HDD make clicking noises? When you first apply power for a cold start,
do you hear a single beep which means the video BIOS is okay? The video
BIOS has to load before the system BIOS; else, you wouldn't see any BIOS
or POST screens. Even if the case doesn't have a speaker, the mobo
probably has a piezo speaker soldered onto it for the status beeps.
Besides plugging the PSU to the 24-pin mobo header for power labelled
"EATXPWR", you did plug into the PSU to the 8-pin header labelled
"EATX12V" on the mobo, right?
Are you booting from an internal or external drive? What type of drive?
Do you ever see the POST screen? Can you get into the BIOS screens? If
so, have you reset the BIOS to defaults?
Section 2.3.8 of the mobo's manual also shows how the front panel
connectors are oriented on the mobo header. Did you orient the front
panel connectors sideways (along the length of the header) or did you
orient them across (the short widtch of the header)?