PowerMac G5 won't register all ram
Hi all.
I recently have been working on a PowerMac G5 which came with Tiger and 5.5GB of DDR2 SDRAM, but come accross a strange issue which I've read a few people with PowerMac G5 have. At first only 2.5GB of RAM would ever register, but now I can only get 3GB to show. I've cleared the NVRAM and PRAM to no avail, upgraded to 10.5.8 with all updates with no luck. I tried swapping the modules about and found that sticks only register with an identical stick in the same numbered slot on the other group. This is really confusing me, and I'm certain the sticks work, but I can't grasp what's going on.
Any help would be apprieciated.
Thanks,
Naoki
PowerMac, Mac OS X (10.5.8), PowerMac G5 Dual 2.3GHz