Service Manual

Expansion cards and expansion card risers

NOTE: A System Event Log (SEL) event is logged if an expansion card riser is not supported or missing. It does not

prevent your system from turning on. However, if a F1/F2 pause occurs with an error message, see

Troubleshooting

expansion cards

section in the

Dell EMC XC Systems Troubleshooting Guide

at www.dell.com/xcseriesmanuals.

Expansion card installation guidelines

The following table provides guidelines for installing expansion cards to ensure proper cooling and mechanical fit. The expansion cards with

the highest priority should be installed first using the slot priority indicated. All the other expansion cards should be installed in the card

priority and slot priority order.

Table 9. Riser configurations: Butterfly riser + 3 x low profile - Processor 1 and 2

Card type Slot priority Maximum number of cards

BOSS M.2 (SATA) (Dell) 2 1

Low Profile LP card 10G and 25G (Intel/

Mellanox)

6, 5, 4 3

HBA330 (Internal) Integrated Slot 1

Removing expansion card from the system board

Prerequisites

1. Follow the safety guidelines listed in Safety Instructions.

2. Power off the system and all attached peripherals.

3. Disconnect the system from the electrical outlet, and disconnect the peripherals.

4. Ensure that all internal cables are routed correctly and connected, and no tools or extra parts are left inside the system.

5. Open the drive bays, remove all drives, and then close the drive bays.

6. Remove the power supply units.

7. Remove the system from the rack and place it on an ESD work bench. For more information, see the Rail Installation Guide at

www.dell.com/xcseriesmanuals.

8. Remove the system cover.

9. Remove the air shroud.

10. If installed, remove the expansion card risers

11. If applicable, disconnect any cables connected to the expansion card.

Steps

1. Press and lift up the expansion card retention latch to open.

2. Hold the expansion card by the edges and lift the card to disconnect it from the system board connector.

Installing and removing system components