So... I've got four 1MB L2 cache modules here for PCI Power Macintoshes & their comparable clones. Two of them work, two of them don't.
There's nothing visibly wrong with the ones that don't work. When installed they just prevent machines from booting. Power comes on, but there's no startup chime, no video, etc. The machines that the two failed modules came from boot just fine with no cache installed or with either of the two still working cache modules.
I'd love to try and diagnose and repair the two that seem like they're inoperable now, but I don't really have any good idea how to do that. I've also thought about donating one of them the cause of trying to recreate them since they're becoming increasingly unobtainium. Or even to the cause of making larger L2 cache modules (2MB or 4MB) if that's possible.
Anybody have any ideas?
There's nothing visibly wrong with the ones that don't work. When installed they just prevent machines from booting. Power comes on, but there's no startup chime, no video, etc. The machines that the two failed modules came from boot just fine with no cache installed or with either of the two still working cache modules.
I'd love to try and diagnose and repair the two that seem like they're inoperable now, but I don't really have any good idea how to do that. I've also thought about donating one of them the cause of trying to recreate them since they're becoming increasingly unobtainium. Or even to the cause of making larger L2 cache modules (2MB or 4MB) if that's possible.
Anybody have any ideas?