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

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