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Hi! Any updates on this? I think I found my own Nemesis, too, in a Performa 6400 ... Got 2 in the mean time ... the first one was working like a charm but had no sound (neither chassis, nor headphone) ... so I got a 2nd one - and guess what. This one has sound but ... no video :(. Good thing...

Wiggling no effect - Deoxi no effect ... maybe the ROM is defective?

Thanks for the hints! ROM reseated and pins brushed with fibre-glass in-between - no change. (Will have to order some Deoxi ... but RAM itself was Ultrasonic'ed+, contacts fibre-glass pencilled - so it only can be the sockets) BBU no visible damage outside - removed - no visible damage...

Hi, anyone having a quick shot on the reason of those patterns on startup? Firstly there's this ons ... and ofter a few seconds it switches to (RAM has already be switched to known-good ... board is recapped (IIRC :)) and washed)

Yep, of course tested without anything ... only didn't unplug the HD from power :). It's getting interesting - I decided to replace all caps again ... started near the CPU working left to up ... testing after 2 replaced ones. So, after the first four - same behaviour ... then the next 2 ...

Thanks Steve @Mac84 ! One thought crossed my mind today - could this be one of the rare occurrences, where capacitors with a "wrong" (too low) ESR or ripple could be the culprit?

Adding to that ... the iMac was a "public info machine" during his previous life - and obviously some idi*** hat nothing better to do than poke with whatever in the openings. Meaning it's no only the mini-VGA socket that is destroyed - both Firewire and the ethernet port is damaged, too ... any...

Thanks a lot for your answer, Bruce @Branchus . I am currently contemplating getting an Ultrasonic Cleaner (thanks for the review :)) as next step - still hoping I can avoid microscopic trace surgery. General interesting question would be, what the system is actually starting to do after...

Noone any idea :(?

INteresting! How do you disable a CPU in OF?

Hi, I recently acquired an iMac G4 20" which was DOA. Cleaned it, replaced the battery and re-capped all the "small" caps on the PSU, now it is booting and chiming - however the display stays dead. Unfortunetely the mini.VGA socket is ühysically wrecked, too, so I cannot check video there...

Doesn't look too bad - solder mask looking still good, no trace rotting going on - Good Luck! It's a rewarding experience :)

Nice! (y)

I assume you wanted to write: A/UX :)

Hi Colin, if talking about system score my guess would be a combination of the "advanced IIfx memory handling" plus the bus speed difference - the IIfx also sports a 40MHz bus. Cheers!

PowerBook G4 1.5 12" (Al) (A1104, EMC2030, 1.5GHz), 0x80030105 (= 7447a v1.5)

iBook G3 900 14" (A1007, EMC1924, 900MHz), 0x70000203 (= 750FX v2.3)

Folks, it always has been annoying me that the information about which actual processor is contained in a some PPC machines seems to be inconsistent between different sources. With the help of some friends here we identified the method to read the Processor Version Register from the command...

PowerBook G4 DVI Ti 667 (A1001, EMC1913, 667MHZ), 0x80010201 (= 7445 v2.1)

Folks, it always has been annoying me that the information about which actual processor is contained in a PPC machine seems to be inconsistent between different sources. With the help of some friends here we identified the method to read the Processor Version Register from the command line -...