Can an AGP 8x card be used on an AGP 4X motherboard?

[Craig234]

I got an XFX 7600 GS AGP 8x (about $105 AR) for my old Athlon 2200+ system; the ECS K7S5A Pro can only do AGP 4x.

Will the card work? Asking before I open it so I can return it if not. I recall reading that the cards will work with the slower MB but people here can say for sure I bet.

 

[sandorski]

yes, 75% sure

 

[Slammy1]

http://www.pricegrabber.com/search_techspecs_full.php/masterid=22919603

Supports AGP 4x/8x. I have an 8x card in my friend's P3 2x AGP system. The main thing to watch for is voltages; AGP 2x is 3.3V whereas 4x/8x are 1.5V.

 

[Bradtechonline]

Only time I saw one not work was with my friends old shuttle a few years back when AGP 8x first came out. He swaped ti 4200's with another guy that had agp 4x and it worked fine.

 

[Craig234]

Thanks - how do I watch for voltages? I assume that means check to see if they're different (what's the best way to do that), and if so, do something about it?

FYI, I have the 256MB, hopefully they're the same, but Pricegrabber has no detailed specs on the 256MB, and the merchants site I checked only lists 8x compatibility:
Tiger Direct shows 8x only

(I also notice no one is saying that this is a terrible card to pick for the old setup, so I guess that's good, I was a bit worried it's too much card and a waste. The price seemed ok.)