Installing RAM in a IIcx...

[CuriosTiger]

Thank you for this But, does this equally apply to the IIcx?

It does not. The IIcx does not have onboard video, so there's no onboard video performance to decrease. Also, if memory serves (pun intended), the logic for the IIcx memory banks are the same as on the SE/30 and the IIx, and the inverse of the IIci.

 

[zigzagjoe]

It does not. The IIcx does not have onboard video, so there's no onboard video performance to decrease. Also, if memory serves (pun intended), the logic for the IIcx memory banks are the same as on the SE/30 and the IIx, and the inverse of the IIci.

Yes, and that commonality is important: when using 16MB simms in Bank A on GLUE-based machines, typically you need to populate something (anything) in Bank B when using the stock ROM. So @keithiepoo try putting your old SIMMs in Bank B as @croissantking said.

 

[keithiepoo]

Yes, and that commonality is important: when using 16MB simms in Bank A on GLUE-based machines, typically you need to populate something (anything) in Bank B when using the stock ROM. So @keithiepoo try putting your old SIMMs in Bank B as @croissantking said.

Alright... so I ought not to max out this thing with the new RAM I bought? Or, is that not the point? Sorry, not sure I’m following here. Is it that ALL the banks just have to be populated with something? That you guys think is my problem here?

Thanks for all your time, peoples.

 

[zigzagjoe]

Alright... so I ought not to max out this thing with the new RAM I bought? Or, is that not the point? Sorry, not sure I’m following here. Is it that ALL the banks just have to be populated with something? That you guys think is my problem here?

Thanks for all your time, peoples.

Yes, if using 16MB SIMMs all 8 slots typically need be populated. The IIsi ROMs have more robust sizing routines which allow you to use just 4x16MB, but there's other implications to installing a new ROM and it's really not worthwhile IMO.

So: Install 4 x 16MB in the first 4 slots (Bank A) and SIMMs of any size (including 16MB) in Bank B.