Questions & Answers for: IBM unregistered

...Any help is much appreciated! Cheers, Nick This problem is due to the mix of registered and unregistered DIMMs. 64Mb and 128 Mb DIMM's are unregistered memory technology 256MB is registered ...

...looking this up and only got results for a 3500, and its a RAM error there, between registered and unregistered DIMMs, but i checked and it's all registered 256mb ram (PC133) and its what it