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| SE/30 64MB RAM Upgrade |
Posted by: turbo on 2016-10-15 21:21:00
Just bought 4x16MB SIMMs from OWC, whose SIMMs I understand to be compatible with the SE/30. Filled bank A -- no RAM in bank B. Powered on and got chimes of death and vertical bars on the screen. I had the board cleaned and recapped several months ago and all of the slots look pristine.
The repair SE/30 page shows this configuration (and only this configuration) as "No Good". What's the deal? Is this configuration bad for some reason?
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Posted by: ArmorAlley on 2016-10-16 12:28:39
I seem to remember that the banks may not be empty. This is the case with IIcx. Do you not have the original SIMMs?
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Posted by: tact on 2016-10-16 12:40:48
Happened to me too. The se30 and other macs have specific ram configuration. In order to use only 4 slots of ram, I think you have to use bank B and leave bank A blank. Or you have to fill in bank B with other ram.
In my case the 64mb ram I got were too big and wouldn't fit in bank B they were a bit too tall the way the logic board goes in the case at an angle. I had to fill bank A with 64mb and bank B with with 4x1mb of ram, Which is even better got 68mb! =)
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Posted by: turbo on 2016-10-17 04:59:48
Thanks everyone! I opened it up last night and put 4 of the original 1MB SIMMs in Bank B and it started up immediately. My hope was to only use the new SIMMs since they are 60ns vs the 80ns originals, but I can always max it out at 128 later if I want.
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Posted by: unity on 2016-10-17 08:57:29
I think the speed of the RAM on the SE/30 runs at 150ns, regardless of what is installed.
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Posted by: olePigeon on 2016-10-17 14:02:00
Thanks everyone! I opened it up last night and put 4 of the original 1MB SIMMs in Bank B and it started up immediately. My hope was to only use the new SIMMs since they are 60ns vs the 80ns originals, but I can always max it out at 128 later if I want. Treat yourself to 4 more SIMMs for Christmas. 🙂
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