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Crossfire

MikeOCUK

MikeOCUK

MikeOCUK

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Joined
23 Jun 2004
Posts
354
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If you have an Asus A8R-MVP crossfire board, and an X1650 Pro card, can you just add another X1650 Pro card and run corssfire, or do you need a master card? I know you can do this with the X1950 Pros, but not sure on X1650
 
am i guesing that anything ending in 00 requires a master card, and anything ending in a 50 does not? Hmm mind you with the 1950xtx im sure you need a master.
 
there is no mention of the Express 200 chipset on that chart :(

Asus A8R-MVP Xpress 200 Crossfire Motherboard - Socket 939

This is the board being used.
 
Mastercard less Crossfire can only be done on the RD580 chipset motherboards (Express 3200 chipset), not the old Express 200 one (RD450 chipset), as the RD580 boards can run both PCI-E 16x's at the full 16x when using 2x cards where as the Express 200's can only do both lanes at 8x when 2x cards are used, also the x1950 XTX does not require a master card either now, as far as im aware its only the old x8 series, and the x1800 series that still require masters, all others can be done in software now (the drivers) so don't require master cards/dongles, there is a performance hit though when not using master/dongle, and also the new crossfire2 which is the x1950pro/x1650's, as they use the new internal bridge like SLi, but the new Crossfire2 still requires RD580 chipset, and will not work on Express 200 as they also require full 16x from both lanes. :)
 
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well i have the xpress200 chipset on my rdx200 mobo and i can use 2 x1950s on crossfire 2 no problem (well i can when my friend brings round his x1950 :D)
 
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