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Home Forums 68kMLA IIsi (onboard) ram upgrade. — #19
Post #19 by uniserver
Source Forum68kMLA
CategoryHardware
Post DateSat, 28 Dec 2013 - 11:59
Original URLhttps://68kmla.org/bb/threads/iisi-onboard-ram-upgrade.29508/
Post
Try 640x870 again, but as GRAYS, not colors. [;)] ]'>Awesome achievement, uni. :approve:
tried it … for some reason its stuck on blue….

but you must admit even in blue … 640x870 coming outta the IIsi stock video port is kinda cool!!!

at-least i think so.

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ok update on this ram upgrade!!!

the 1meg onboard ram in the IIsi consists of EIGHT, 128k 20pin ram chips.

the 4 meg onboard ram that i have just installed consists of EIGHT, 512k 20pin ram chips.

right now i am STUCK at 4 mess of ram, because i do not have any larger denomination 20pin ram chips.

Does anyone one a Powermac 6100 with 16 mess of ram?

if so will you please count the pins on the ram chips for me?

My hunch is any denomination above 512k per chip goes to a 24pin chip, witch would make it incompatible with the ram pads on the IIsi mainboard.

HOWEVER, it would be great!!! if the powermac had 1meg 20pin ram chips to make 16 meg's, then at least there is hope of getting 8meg's maximum(onboard) in the IIsi.

mp.ls