I bought one of those g5 front panel to atx cable harnesses from alohacab awhile back but am still unable to get the power button and led to work. The usb and firewire ports both work though. He told me when I first brought it up to him that there was probably a problem with the ground path, but I can't figure it out.
He has the ground path set up throught the firewire connection. I've got this connected to a firewire card that I bought from newegg that has the 10-1 pin connector that he provides. I've continuity tested all the leads on the cable harness and everything seems to check. Also too, both the firewire and usb connections work properly: I've connected two different drives through each port with successfully seeing them in windows explorer.
I just can't get the power button to work. I've tried connecting a ground wire from the front panel port power switch ground pin on the mobo directly to the chassis with no luck. I finally bought a new power pcb and replaced the old pcb: no luck. However, this time when I press the power button, the led lights up. But only while the button is pressed.
I can also confirm that the mobo front panel power switch pins work as I can power up the computer using a flathead screwdriver to short the pins.
For any of you who have bought this cable harness, do you have any suggestions as to how I might be able to track this issue down?
Since the grounding is happening through the firewire connector, could it be that the firewire card isn't live yet? Would I need to jumper the ground through another route altogether? If so, thoughts as to how to do this?
Thanks for any help you all can offer.
If worse comes to worse, I'll just rig up a separate switch button, but i really don't want to resort to that if I can avoid it.