• Hello, Guest! Welcome back, and be sure to check out this post for more info about the recent service interruption and migration.

Does anyone have a 7500 ROM SIMM and if not are there modern day programable ones?

mgmac

Well-known member
found 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
 

jajan547

Well-known member
found 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
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 based
 

jajan547

Well-known member
yes, I understand, try to see if it finds the correct simm code
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
 

Performa450

Well-known member
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
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.
 

jajan547

Well-known member
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 found some old parts guides with simms but most appear to be cache and older before the 7100
 

jajan547

Well-known member
All of these SIMMs will boot my board if anyone has one PM me

Power Mac 7200/75/90/120/120PC
Power Mac 7215/90
Power Mac 7500
Power Mac 7600/120/132
Power Mac 8200/100/200
Power Mac 8500/120/132/150/180
Power Mac 8515/120
Power Mac 9500/120/132/150/180MP/200
Power Mac 9515/132
 

Phipli

Well-known member
Maybe cross reference with a layout/picture to make sure its not the cache card.
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.
IMG_20220924_141323.jpg
 
Top