I can help you with testing the controller.
I posed a question a while back about the CPU Daughtercard and the chipset. the CPU module contains the chipset and from what I determined the IDE controller should be on the daughtercard, so swapping in another G3/G4 module should verify if it's the controller or the board.
I have my pismo and am willing to help you out with testing the card. if the controller is indeed dead, the HDD in my pismo should not boot. The board as I can tell, except for the cardbus controller is just pin-outs from the ZIF socket the card plugs into. Almost no logic except the cardbus is on the logic board.
Also, for testing 5v, check USB/FW, those both probably get the 5v from the same place. So if no power for USB, that could be the DC-DC board. In that case, I wish you luck finding one of those.
Like I said, the chipset and IDE controller (if on the daughterboard like I speculate) should be tied to the CPU. swap that and your drive works, your G4 CPU is toast. If not and the HDD doesn't spin, the 5v rail is gone.
I can offer my testing (and possibly collateral for insurance) with my pismo which is in perfect condition. With that I can rule that out. Otherwise, if you want to provide collateral to me, I am offering to ship my 500Mhz G3 module to you to test (with known working RAM) to check on your board. My pismo is sitting around so I don't mind offering to help troubleshoot.
I assume you are in the USA right? I am right in the middle (Nebraska) and have done several deals on the forum.
I posed a question a while back about the CPU Daughtercard and the chipset. the CPU module contains the chipset and from what I determined the IDE controller should be on the daughtercard, so swapping in another G3/G4 module should verify if it's the controller or the board.
I have my pismo and am willing to help you out with testing the card. if the controller is indeed dead, the HDD in my pismo should not boot. The board as I can tell, except for the cardbus controller is just pin-outs from the ZIF socket the card plugs into. Almost no logic except the cardbus is on the logic board.
Also, for testing 5v, check USB/FW, those both probably get the 5v from the same place. So if no power for USB, that could be the DC-DC board. In that case, I wish you luck finding one of those.
Like I said, the chipset and IDE controller (if on the daughterboard like I speculate) should be tied to the CPU. swap that and your drive works, your G4 CPU is toast. If not and the HDD doesn't spin, the 5v rail is gone.
I can offer my testing (and possibly collateral for insurance) with my pismo which is in perfect condition. With that I can rule that out. Otherwise, if you want to provide collateral to me, I am offering to ship my 500Mhz G3 module to you to test (with known working RAM) to check on your board. My pismo is sitting around so I don't mind offering to help troubleshoot.
I assume you are in the USA right? I am right in the middle (Nebraska) and have done several deals on the forum.