AMD Radeon HD 7990 User Manual page 21

Figure 4–4 AMD CrossFire™ Bridge Interconnect Protection Tag
Figure 4–5 AMD CrossFire™ Installation
1 AMD CrossFire graphics cards
2 Interconnect
9. Fasten the graphics cards securely to the back panel.
© 2013 Advanced Micro Devices, Inc.
AMD CrossFire™ Technology 15
AMD Radeon™ HD 7990 Graphics