Have you tried to look for cold solder joints on the PSU PCB? There might be some unfiltered noise if a capacitor isn't properly soldered. Since it reaches the boot screen you could try resetting the RAM but the only way to do so is by disconnecting the internal battery.
Le 2014-08-30 01:49, "Kirk@... [k5synth]" <k5synth@yahoogroups.com> a écrit :
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> I've got a K5M that has a problem with the display - then first powered up it shows the K5M splash screen, but when it finished booting up, the display is garbled - showing ??? marks across the screen. At this point, it's locked up and none of the functions/buttons seem to work.
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> I've checked the PSU voltages and they are all good. I also opened it up and reseated all connectors. At this point it's dead in the water...
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> Any suggestions on how to fix it?
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> Thanks
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> Kirk
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