Doing a little research, the socket A (462) motherboards all have AGP 
video card provisions with no PCI Express. The 939 motherboards 
primarily come as PCI Express but some have AGP and some have both AGP 
and PCI Express.

The ATI Radeon X1600, can be purchased as AGP or PCI Express. To have it 
work with your current motherboard you would need the X1600 as an AGP. 
If you purchase a 939 motherboard, it depends how the motherboard is 
equipped as to how the X1600 can interface with it.

Since the X1600 is classed as a mid performance video card, going to the 
extra expense of replacing your motherboard does not make much sense. If 
you are looking for high performance, you will need to purchase a better 
PCI Express video card along with a good PCI Express motherboard.

I hope this helps.

Tom Mayer

Brad wrote:
> Gentlemen,
>
> I have a computer with a 462 socket motherboard and wish to upgrade my ATI
> Radeon 9550 video card with a ATI Radeon X1600.  My question is will the
> X1600 work on the 462 or is it best matched with a 939 socket motherboard?
> Thanks for any advise...
>
> Brad
>
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