On that board, it should be no problem.
On a later model board, it would not be a problem but you would be denied the advantage of dual-channel RAM...if using two different modules.
MR16R0828AN1-CK8IN 800-45 100 appears to be RDRAM, so it is not compatible, http://www.google.com/search?hl=en&sou...mp;oq=&aqi=
This post is accurate, http://www.computerforum.com/160611-ram-question.html
. If you don't know what RDRAM is, please look it up, using Google. You will see that it's a type of memory which was employed by some Intel systems in the past. It is not compatible with PC3200 or any other form of DRAM.
Rambus is 184-pin, as is DDR...but the two cannot be mixed in a system, since the motherboard will require one or the other...never both.