It is very basic AGP spec.  AGP4x and 8x run at 1.5v and older 1x/2x run at
3.3v.  Any new mobo that only supports 1.5v means you must only use AGP4x or
8x cards on it, plug a 3.3v AGP card will damage the mobo and/or the AGP
card itself.

Few old AGP cards looks like they have AGP4x interface, however they only
run at 3.3v.  That's why many mobo today have warning on their board that
warns user the voltage they support.

All new and recent AGP cards are safe to use, so if you have one, just don't
worry.

Jun Qian

----- Original Message -----
From: "Peter Shkabara" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Tuesday, December 03, 2002 12:43 PM
Subject: [PCBUILD] AGP port


> In researching
> motherboards (I chose the Intel D845PEBT2) I found that some board
> supported 1.5 and 3 volt on the AGP interface. I am aware of the 2x, 4x,
> 8x speed differences on the AGP, but what does the voltage rating refer
> to?

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