hey, all: recently sold my MP3,1. i forgot that i had 2x1GB of the original ECC RAM (FB-DIMMs). as i recall, one chip may have been giving errors. can't remember why i pulled it. unfortunately i no longer have the machine to test it out. i'm certain one of the chips is fine, and i'd give the 2nd one a 50% chance. it's yours for the cost of USPS Priority Shipping in the USA (~$6). shoot me a private message with your address and it will be on the way. 1st to post in this thread gets it. i know, i know...not of huge interest, but maybe it helps someone else make a matched set.