[misterasset]

I'm currently running a machine with two AMD Opteron 254s that are in a 940 socket motherboard. I got this system instead of a the Xeon option because I was told that if I ever wanted to put dual-core chips in to the machine that the existing motherboard would accept them.

So, my first question is, will any AMD Dual-Core Opteron that works with a 940 socket motherboard work?

And my second question is, do I have to replace both chips with Dual-Core at the same time or can I do one and then the other? I remember reading somewhere that the chips have to be the same but I can't remember if I actually did or if I'm just making it up.

Thanks for the input,
Chris

[glypticmax]

Hi Chris,
I've also read that both chips on a dual chip MOBO have to be the same.
A word of caution about expecting a plug-n-play switch though.
My situation does not relate directly to your's, but it could.
I had a 939 pin MOBO with an AMD 4800+ and was told by a variety of experienced people that a 939 pin dual core would be plug-n-play, with a change of BIOS. I checked with the MOBO mfg and they had a free download of a BIOS just for AMD dual cores. Easy enough.
It ended up the Compaq tweeked XP Pro OS wouldn't allow the new BIOS to be loaded. So I ended up with a new MOBO, power source (old 920 pin, new 940 pin), and vid card (PCI Express) just to make the new CPU run.
Good luck.

[glebe digital]

You'll need to get both CPUs replaced at the same time for sure.
Also check your mobo manufacturer and model beforehand [for available BIOS upgrade and compatability etc] , and your PSUs wattage...........this might need to be replaced for a more powerful unit too.