Hi again! I bought 4 sticks of 16mb (4 x 16= 64mb total) 30-pin 80ns non-parity ram from 18004memory.com
I have working 4 x 4mb=16mb total old ram that boots just fine. I am running system 7.5 (no updates, just 7.5, I chose 'for my machine only' when I installed the system. I have the Apple official floppy set.) I do NOT have a parity chip on my iici board. I have a delta powersupply (just replaced and functions great) I re-capped the motherboard. There are 8 ram slots in my iici. I installed the 4 (4x16mb)ram sticks in bank a and then left bank b empty. I tried booting and I get the chime and then the screen just doesn't get a picture and nothing happens. I tried adding 4 x 4mb into bank b and 4 x 16mb into bank a and booting and the same thing happens. I put the 4 x 16mb into bank b and the 4 x 4mb into bank a and the same thing happens. I put the 4 x 4 Mb into bank a and leave bank b empty and it boots perfectly. I thought the ram was bad and I returned it and they sent 4 new replacement 16mb Simms. I did the above again and got the same results with the replacement 4 x 16mb I also tried holding the shift key down and it still wouldn't start. I have no cards installed. (Not even the 32kb cache card). I have zapped the pram. The system battery is about 6 months old. I have no external devices connected except Apple monitor, Apple keyboard, Apple mouse. Is there something I'm doing wrong? Can system 7.5 not see 16mb ram Simms? It can't be possible that I would get 2 sets of 4 x 16mb ram and both sets would be bad? (Note: I had put a small red dot hidden in the corner of the ram so I would know if they just sent me the same ones back. The replacement were in fact ones I had not tried.) -- -- ----- You received this message because you are a member of the Vintage Macs group. The list FAQ is at http://lowendmac.com/lists/vintagemacs.shtml and our netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml To post to this group, send email to vintage-macs@googlegroups.com To leave this group, send email to vintage-macs+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/vintage-macs Support for older Macs: http://lowendmac.com/services/ --- You received this message because you are subscribed to the Google Groups "Vintage Macs" group. To unsubscribe from this group and stop receiving emails from it, send an email to vintage-macs+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
