joevt's latest activity
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Jjoevt replied to the thread MFM Floppy Drives?.Open Firmware does contain code for MFM drives. Open Firmware, 2.0.2 for PM 4400 and 7220 can choose between a MFMfloppy device and a...
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Jjoevt replied to the thread Important question, Can I use a single pump if one LCS pump is broken!!!!!.I don't know anything about that. The PCBs from DIYINHK are not mentioned in the air cooling links I posted. They are mentioned here...
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Jjoevt replied to the thread Cpu0 and cpu1 help needed..I have no info regarding G5 air cooler compatibility with G5 liquid cooled CPUs. I linked some air cooling threads at #9
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Jjoevt replied to the thread Important question, Can I use a single pump if one LCS pump is broken!!!!!.These are the recent ones: https://forums.macrumors.com/threads/because-i-can-air-modding-a-quad-with-pc-coolers.2427612/...
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Jjoevt replied to the thread Important question, Can I use a single pump if one LCS pump is broken!!!!!.There's a couple Quad G5 air cooling threads on MacRumors. They use third party air coolers - 92 mm.
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Jjoevt replied to the thread Cpu0 and cpu1 help needed..MacRumors has a couple recent threads on converting a Quad G5 to air cooling.
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Jjoevt replied to the thread SOLVED Apple //e with PAL composite video displaying issue.The point of setting all the bytes in the text to all the same value is so that you can find that byte value on the bus. You're saying...
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Jjoevt replied to the thread SOLVED Apple //e with PAL composite video displaying issue.Here's another test program. Change the value in line 5 to any bit pattern or character you think might be helpful. 5 TEST = 255-64 10...
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Jjoevt replied to the thread SOLVED Apple //e with PAL composite video displaying issue.I think so. Do you mean the IOU at E5? I guess if you're done looking at all the traces to the Video ROM at F4 then sure, try the IOU...
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Jjoevt replied to the thread SOLVED Apple //e with PAL composite video displaying issue.This is a better test: 10 HTAB 1:VTAB 1: PRINT " `Aa": PRINT PEEK(1024) " " PEEK(1025) " " PEEK(1026) " " PEEK(1027) I tested it at...
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Jjoevt replied to the thread SOLVED Apple //e with PAL composite video displaying issue.You can try AppleSoft Basic using the PEEK command. Something like this: 10 HTAB 1: VTAB 1:PRINT " ": PRINT PEEK(1024) 20 HTAB 1: VTAB...
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Jjoevt replied to the thread SOLVED Apple //e with PAL composite video displaying issue.I believe the problem occurs before the PAL circuit. What does "chip base" mean? I hopes it's just a problem with a trace. Correct...
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Jjoevt replied to the thread Hurdles Setting Up Dream G5; Experiences?.What version of Open Firmware do you have? Apple disabled automatic USB booting between April and August 2004. I think you can use a...
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Jjoevt replied to the thread SOLVED Apple //e with PAL composite video displaying issue.Does the VGA card actually read from RAM or does it mirror the RAM by capturing writes? Probably the latter since it would be competing...
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Jjoevt replied to the thread SOLVED Apple //e with PAL composite video displaying issue.The Video ROM is where the Apple II keeps the character bitmap data - the Character ROM? Which screen shot is from the VGA card and...
