Hi. The notches indicate buffering and voltage. From an Asus mobo manual (left is nearest notch to an end): ||| ||| RFU 5V Buffered 3.3V Unbuffered Reserved I don't know what RFU means. The most common ones are unbuffered/3.3V. ************************************ Javier Vizcaino. Ability Electronics. [log in to unmask] http://ability53.hypermart.net Starting point: (-1)^(-1) = -1 Applying logarithms: (-1)*ln(-1) = ln(-1) Since ln(-1) <> 0, dividing: -1 = 1 (ln(-1) is complex, but exists) >Hello and I sure hope someone can help me with this ram. > >I have a Microstar MS-6117 motherboard and bought a 64MB >EDO/ECC 8X72 168pin Unbuffered DIMM. The motherboard >manual says that it supports EDO and ECC. When I tried >to install it, one of the cutouts on the bottom of the DIMM >didn't match up with the (key?) on the motherboard DIMM >slot....it was about 1/16" off. I took another 168pin DIMM >and held them up to each other and they didn't match up. >Are there different sizes? of DIMM's or was this one just >cut wrong? Any help you can give me with this will be >most appreciated. > >Thanks >Dan Duffy ----- PCBUILD mailing list - http://nospin.com Bob Wright:[log in to unmask] - Drew Dunn:[log in to unmask]