No that's the wrong Ram for your machine. I buy my RAM from here:
http://www.datamemorysystems.com/ap...-2-8ghz-ma970ll/a-early-2008-memory-upgrades/
I've used these guys since 1986 and have never had a RAM failure. They carry good stuff with a Lifetime warranty.
Lou
They can work but will run at 667MHz instead of 800MHz that your computer is capable of.
Do you mean a pair of 800MHz RAM in riser A and a pair of 667MHz RAM in riser B? Yes, this would work. All ram will run at 667MHz....