ASROCK 4CORE1333-ESATA2 Manual page 16

Step 2. Install one Radeon graphics card to PCIE2 slot. For the proper installation
procedures, please refer to section "Expansion Slots".
Step 3. Install the other Radeon graphics card to AGI Express slot (PCI
Express x4). For the proper installation procedures, please refer to section
"Expansion Slots".
Step 4. Connect two Radeon graphics cards by installing two CrossFire
on CrossFire
TM
(CrossFire
bundled with this motherboard. Please refer to your graphics card vendor
for details.)
CrossFire
Step 5. Connect the DVI monitor cable to the DVI connector on the Radeon graphics
card on PCIE2 slot. (You may use the DVI to D-Sub adapter to convert the
DVI connector to D-Sub interface, and then connect the D-Sub monitor
cable to the DVI to D-Sub adapter.)
1 6 1 6 1 6
1 6 1 6
ASRock 4Core1333-eSATA2 Motherboard
TM
Bridge Interconnects on the top of Radeon graphics cards.
Bridge is provided with the graphics card you purchase, not
TM
Bridge
TM Bridge