• We recommend that you install a graphics card on the primary (orange) PCI Express slot and install other PCI Express devices on the black ���PCI Express x16 slot.

In CrossFire™ mode, each PCI Express x16 slot works at x8 bandwidth.

In CrossFire™ mode, install the ATI CrossFire™ Edition (Master) graphics card on the primary (orange) PCI Express slot.

Refer to the table below for possible PCI Express Card configurations.

PCI Express x16 slot configurations

 

PCIEX16_1 (orange) slotPCIEX16_2 (black) slot

 

Card type

SpeedCard type

Speed

Non-CrossFire™

PCIe x16 graphics card

x16

NA

NA

mode

PCIe x16 graphics card

x8

Other PCIe x16

x8** (dual

 

 

 

graphics card

screen)

 

PCIe x16 graphics card

x8

Other PCIe card

x8, x4, x1**

 

 

 

 

 

Dual

ATI® CrossFire™ Edition

x8

ATI graphics card

x8

graphics cards

graphics card

 

 

 

in CrossFire™

 

 

 

 

mode*

 

 

 

 

* Install two ATI graphics cards from the same GPU family that support CrossFire™ mode.

**The speed of the primary PCIe x16 slot (PCIEX16_1) changes to x8 mode after you install any device in the secondary PCIe x16 (PCIEX16_2) slot.

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