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Is my crossfire working properly?!
Oct 6, 2009, 7:13 AM
I'm just wondering if my crossfire is working correctly because i ran gpuz v. 0.3.5 and it showed my second card running at pci-e 2.0 x4 not x16!!
running a email@example.com, 8gbddr2 800, antec tpq1000 psu, and most importantly a dfi lp dk x38-t2rb
I've attached a screenshot.. First gpuz is selected on the first 4850 and the second is on the other 4850.. Crossfire is detected but not at full pci-e 2.0 x16 speeds!
The BUS Interface on the second card reveals: PCI-E 2.0 x16 @ x4 2.0
Can you tell me if there is something wrong? Maybe there is something i need to turn on in BIOS? Not sure b/c in CCC Crossfire is turned on.. Can you guys help me?
Oct 6, 2009
crossfire working properly
Oct 6, 2009, 7:42 AM
Your mobo support 2 PCI Express x16 slots (PCIE 1 and PCIE 3) - 2-way CrossFire at x16/x16 bandwidth, so you need to turn on something in the BIOS or something is wrong.
Oct 6, 2009, 12:10 PM
should be right because x38 crossfire at 8x/8x (i think) so pci-e 2.0 x4 is pci-e x8
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Oct 6, 2009, 3:27 PM
uhh no.. pretty sure x38 is at x16 speeds..
Oct 6, 2009, 3:32 PM
Yeah, most mobos will clock down the bus speed in crossfire mode. Most will actually clock them down to 8x - 8x .. or sometimes 16x - 8x. But usually it's the first of the two. Your system is fine.
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