mgmac
Well-known member
opss sorry I have read 8500, not 7500, my mistakeIsn’t that just a cache?
you have 7500, not 8500, sorry
opss sorry I have read 8500, not 7500, my mistakeIsn’t that just a cache?
I don’t know what the simm number was all I know are the four ROMs commonly found on the boards.if you tell me the exact code, It is possibile I have it for your PMac 7500
Well most had on board mine is an EVT without on board ROM so what I want to do is find a simm from a 7300, 7500,7600, 8500, or 9500 so I can boot it. I hate to solder ROMs to an EVT board that had them simm basedfound anything in the 7500 motherboard online pictures?
it's weird because it's a very common Mac model
If you find the code, I can check if I have it
I’ll try ive been looking through what documentation I’ve found in my Vol 5 service guide (in the wiki section here) it talks about the ROM simm but not the number annoyinglyyes, I understand, try to see if it finds the correct simm code
Might be worth looking in service manual pics if they haven’t. They often picture prototype boards, but may well be too low res to get the part number.I’ll try ive been looking through what documentation I’ve found in my Vol 5 service guide (in the wiki section here) it talks about the ROM simm but not the number annoyingly
I found some old parts guides with simms but most appear to be cache and older before the 7100Might be worth looking in service manual pics if they haven’t. They often picture prototype boards, but may well be too low res to get the part number.
Yeah I’m beginning to think maybe take a 6100 rom simm and flash new 7500 ROMs to it/replace the chips.Sadly they're all cache cards. Please forgive the messy mark-up, I'm on my phone, but you can see the silkscreen in this markup.
SIMM ROMs are really unusual in this era of machine.
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