Remove the E3.S switch board

Use this information to remove the E3.S switch board.

About this task

Required tools

Screwdriver for PH 2, T10, and T15 screws

Water loop shipping bracket
GPU cold plate handle assembly
GB200 NVL4 TIM Jig
T15 screwdriver
T10 bit together with torque wrench
SC777 V4 GB200 Grease SE 7921

Thermal interface materials for MCIO configuration
- GB200-NVL4 PCM for MCIO Configuration.
- GB200-NVL4 putty pad on plastic jig
- Water loop putty pads and gap pads
  - Water loop DCSCM pads
  - (Optional, if E3.S switch board is installed.) Water loop E3.S switch board pad
  - Water loop host board pads
Thermal interface materials for Dual CX8 mezzanine module configuration
- GB200-NVL4 PCM for Dual CX8 mezzanine module configuration.
- GB200-NVL4 putty pad on plastic jig
- GB200-NVL4 putty pad for Dual CX8 mezzanine module configuration
- Water loop putty pads and gap pads
  - Water loop DCSCM pads
  - (Optional, if E3.S switch board is installed.) Water loop E3.S switch board pad
  - Water loop host board pads
ConnectX-7 400 interface plate pad
OSFP interface plate pads
ConnectX-7 200 interface plate pads
ConnectX-8 XDR interface plate pads
Dual CX8 mezzanine module configuration GB200-NVL4 putty pad
E3.S drive cage bottom pad
E3.S drive cage heat pipe gap pad

Attention

Read Installation Guidelines and Safety inspection checklist to ensure that you work safely.
Turn off the corresponding DWC tray that you are going to perform the task on.
Disconnect all external cables from the enclosure.
Use extra force to disconnect QSFP cables if they are connected to the solution.
To avoid damaging the water loop, always use the water loop carrier when removing, installing or folding the water loop.
The following illustration might differ slightly from your hardware, but the removal method is the same.

Watch the procedure

A video of this procedure is available at YouTube.

Procedure

Make preparations for this task.
1. Remove the tray from the enclosure. See Remove a tray from the enclosure.
2. Remove the tray cover. See Remove the tray cover.
3. Remove the cross bar. See Remove the cross bar.
4. Remove the PCIe adapter riser assembly. See Remove a ConnectX-7 NDR 200 adapter riser assembly, Remove a ConnectX-7 NDR 400 adapter riser assembly, Remove a ConnectX-8 XDR adapter riser assembly, or Remove the OSFP module.
5. Remove the E3.S drive cages. see Remove an E3.S front drive cage assembly.
6. Remove the water loop from the tray. See Remove the water loop.
Loosen two (2x) thumb screws to release the E3.S switch board from the tray.
Figure 1. Loosen thumb screws on the E3.S switch board
Slide out the E3.S switch board and remove it from the tray.
Figure 2. Removing the E3.S switch board
If necessary, remove five (5x) PH1 screws to remove the E3.S switch board from the cookie sheet.
Figure 3. Removing E3.S switch board from the cookie sheet

After you finish

If you are instructed to return the component or optional device, follow all packaging instructions, and use any packaging materials for shipping that are supplied to you.

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