Quick crossfire question

[Skunkworks]

I just put another 4890 in my machine to give it a boost. In GPUZ I get the following details:

Card 1: PCI Express x16 v2.0
Card 2: PCI Express x16 v1.1

I'm using an Asus P6T deluxe with the latest BIOS.

Is this correct, or do I need to adjust something in the BIOS?

EDIT:

According to the manual:

3 x PCI Express 2.0x16 slots (at x16/x6/x1 or x16/x8/x8 mode)

 

[Skunkworks]

I don't have any benchamrk software, but I used Fraps to get an FPS display in Rift.

When I disabled the 2nd card there was no drop in FPS, maybe even a slight increase of 3-4, but I can't be sure as I did it in a pretty unscientific way.

I'm getting the feeling something is working.

 

[Skunkworks]

Yes to all of those, and GPUZ is reporting that Crossfire is enabled.

Can you recommend any free benchmark software that is compatible with DX10?

 

[Skunkworks]

You could try the free edition of 3DMark Vantage:

http://downloads.guru3d.com/download.php?id=6

Thanks, I shall give that a go.

A couple of screenshots of GPUZ, just in case anyone spots anything suspect.

It's now saying both cards are running at 1.1!

 

[Skunkworks]

Single card: P12012 3DMarks link

Crossfire: P18914 3DMarks link

It’s definitely working, I just don’t know enough to know if it’s working to full potential. Oh well, I’m still happy.

 

[Skunkworks]

I was having a few random lock-ups over the last few weeks, so I flashed my MB to the latest BIOS and left everything at default. I'll give it a few more days to make sure all is well, then I'll bump this thread with some OCs and see what I can get.

Thanks for the input, everyone.