Supported Slot Order & Configuration with Reality Engine

Slot

Electrical

Mechanical

Card

1

x16 PCIe Gen 3

x16

GPU

2

x4 PCIe Gen 3

x4

-

3

x16 PCIe Gen 3

x16

Video I/O card (Secondary Optional)

4

x4 PCIe Gen 3

x4

-

5

x8 PCIe Gen 3

x8

Video I/O card (Primary)

Installation of AJA Video I/O card on PCIe Slot

AJA Video I/O card has 8-Lane PCIe construction. Hence you have to install it on PCIe slot 5.

The below image shows the motherboard marked with Slot 1 (for GPU), Slot 3 (for secondary optional video I/O), and Slot 5 (for primary video I/O).

You can install a secondary Video I/O card on Slot 3.

On the HP Z4 G4, the 8-Lane slot is positioned far from Slot 1, where GPU will be installed, so it ensures sufficient cooling and airflow.

Installing a Video I/O card on Slot 3 is not preferred as the GPU installed on Slot 1 may generate heat, and as both the cards will be closer to each other, there will not be enough gap between both the boards.

Video I/O installed on Slot 5

After installing video I/O as described above, make sure to lock the PCIe bracket securely, which holds the PCIe card on the motherboard firmly.