Mixing different speed memory modules
Posted on 2005-03-10
I am running a MSI K7T266 Pro2 Motherboard (MS-6380) with 512mb or Crucial Memory # CT6464Z265 with the following stats - DDR PC2100 - UNBUFFERED - NON-ECC - DDR266 - Voltage: 2.5V - Memory Timings:CL=2.5.
I am trying to add a second 512mb module. I found a great deal at TigerDirect on the following Ultra brand memory - DDR PC3200 - 400mh - (I apologize, but no other stats are available...)
I can install either memory module into my PC and it will work properly. I can do this in any of the three Memory Slots on the Motherboard. When I install both together, the PC only sees 512mb of memory. I have tried upgrading the BIOS, changing the BIOS settings, swapping the slots several times and everything else that I can think of.
Can I mix these two types of memory in a PC? From what I have read, I should be able to do this, but it seems that I can not. Any suggestions?