522 Upgrade and Maintenance Manual  TX300 S7 / RX350 S7
Expansion cards and backup units
Figure 360: Breaking out the GPGPU card blind cover (B)
I The opening is intended for the GPGPU air duct.
Figure 361: Installing the system air duct
Ê Install the system air duct into the chassis as described in section "Installing 
the system air duct" on page 98.