Two NON-crossfire 16x cards on a P5K Deluxe?

[DBissett]

The specs for this board and others like it include 2 PCIe 16x slots, that support Crossfire tech at 8x. But if I run 2 dual head PCIe 16x video cards that are NOT crossfire enabled cards in order to drive 4 monitors, with they each get the full 16x?

 

[imported_ravenous]

im not sure exactly how the 16x is divided up...my idea on it is if the chipset sees one card, it get 16x, if it sees two cards it divides the bandwidth, crossfired or not...i could be completely wrong, but i think you may only get 8x a card

if someone knows for sure, please correct me

 

[Heidfirst]

there are only a limited no. of PCI-E lanes available on the chipset available for use with gfx.
Doesn't the P5K Dl do Crossfire at x16+ x4? in which case that is how the lanes will be divided if used for 2 gfx cards not in CF.

 

[DaveSimmons]

What are you using them for?

4x should be more than fast enough for almost any non-gaming use.

 

[DBissett]

I am looking at the new Matrox M9120 cards for a trading computer and just going by their specs.....they're PCIe 16x cards.....so if the bandwidth gets divided whether they're crossfie cards or not, I guess they'll still run but not at full speed, and they would still be fast enough for this work.

 

[Heidfirst]

they may well be physical x16 without needing elctrical x16.

 

[BassBomb]

Originally posted by: Heidfirst
there are only a limited no. of PCI-E lanes available on the chipset available for use with gfx.
Doesn't the P5K Dl do Crossfire at x16+ x4? in which case that is how the lanes will be divided if used for 2 gfx cards not in CF.

dis

It will be running at 16x lane + 4x lane