SN4000 Dismantling Instructions

Warning

This manual is preliminary and subject to changes.

To dismantle the system, perform the following steps, while viewing the matching illustrations in the Component Illustrations table. To view the amounts of each component in your system, refer to the Component List below with the item number in the brackets. Once you are done dismantling all switch components, make sure you have all Screws, Nuts and Washers.

  1. Disassemble the Fan Modules (1#) and the Power Supplies Units (2#).

  2. Unscrew all screws (#c, #f) securing the Top Cover (#3) to the system's base, and remove it.

  3. Unscrew all screws and washers (#c) securing the Front Panel (#4) to the system's base, and remove it.

  4. Remove all Heatsink Patch Spacers (#5), and disassemble the Heatsink Unit (#6).

  5. Remove all Comex to Cover Spacers (#7) and unscrew all screws (#e) securing the COM Express Module (#8) to the chassis, and remove it.

  6. Cut all Cable-Ties (a#).

  7. Disconnect the Power Harness between the Fan Board and Main Board (#9) from both sides.

  8. Disconnect the Signal Harness between the Fan Board and Main Board (#10) from both sides.

  9. Locate the Coin Battery (#11) under the designated latch, and remove it.

  10. Unscrew the screw (#b) securing the the SATA SSD Module (#12) to the Main Board (13#), and remove it .

  11. Use the dedicated jiga to remove the Main Board (#13) from the chassis: remove all Comex Patch Spacers (#14) and Heat Sink Limiter Patch Spacers (#15), and unscrew all screws (#g, #i) securing the Main Board (#13) to the chassis.

  12. Unscrew all screws (#d) securing the the Fan Board (#16) to the chassis, and remove it .

  13. Remove the Pull-Tab Lock Washer (#17), and pull-out the Pull-Tab (#18).

  14. Uninstall the Light Pipes (#19), and remove them from the fan dividers.

  15. Remove all COM Express Spacers (#20), Main Board Spacers (#21) and the Main Board Guide Pin (#22).

a Jig PN - MTCJ2751. For assembly instructions, please contact your Mellanox representative.

image2020-9-29_13-44-42.png

Components

#

Component

SN4600C

1.

2U Fan Assembly

3

2.

Power Supply Unit

2

3.

Base Top Cover

1

4.

Front Panel Assembly

1

5.

Heat Sink Limiter Patch Spacer

4

6.

Heat Sink Base with Stacked Fins

1

7.

Comex to Cover Spacers

2

8.

COM Express Module

1

9.

Power Harness between the Fan Board and Main Board

1

10.

Signal Harness between the Fan Board and Main Board

1

11.

Coin Type Lithium Battery Battery

1

12.

SATA SSD Module

1

13.

Main Board

1

14.

Comex Patch Spacers

3

15.

Heat Sink Limiter Patch Spacers

4

16.

Fan Board

1

17.

Pull-Tab Lock Washer

1

18.

Pull-Tab

1

19.

Long Light Pipe For Double Fan Dividers

3

20.

COM Express Spacers

2

21.

Main Board Spacers

13

22.

Main Board Guide Pin

1

Screws, Nuts and Washers

a.

Plastic Cable Tie

2

b.

Flat Head SM3X5 ST.ST DIN:965A Phillips Screw

1

c.

Flat Head 100º 4-40x3/16" Phillips Patch Screw

34

d.

Pan Head 4-40x5/16" Double Washer Phillips Sems Screw

8

e.

Pan Head M2.5x5 St.St Phillips Flat Washer Screw

3

f.

Flat Head Philips 100º 2-56x3/16" St.St Patch Screw

2

g.

Pan Head Philips Double Washer 4-40x3/8" St.St Screw

6

i.

Flat Head Philips 100º 6-32x1/4" St.St Patch Screw

4

Warning

Note: The images in the following table are provided for illustration purposes only. The components may slightly vary, depending on the system's family and specific model.

#

Component

#

1.

2U Fan Assembly:

image2020-9-28_23-1-42.png

2.

Power Supply Unit:

image2020-9-28_22-55-55.png

3.

Base Top Cover:

image2020-9-28_23-14-4.png

4.

Front Panel:

image2020-9-28_23-16-21.png

5.

Heat Sink Patch Spacer:

image2020-9-29_13-28-5.png

6.

Heat Sink Unit:

image2020-10-7_16-8-35.png

7.

Comex to Cover Spacer:

image2020-9-29_13-17-19.png

8.

COM Express Module:

image2020-9-29_12-28-59.png

9.

Fan Board To Power Extender Power Harness:

image2020-9-29_13-4-49.png

10.

Main Board To Fan Board Signal Harness:

image2020-9-29_12-59-7.png

11.

Coin Type Lithium Battery:

image2020-9-29_13-11-8.png

12.

SATA SSD Module:

image2020-10-7_16-28-16.png

13.

Main Board (Switch Board):

image2020-9-29_11-52-4.png

14.

Comex Patch Spacer with Long Male Thread:

image2020-9-29_13-30-23.png

15.

Heat Sink Limiter Patch Spacers:

image2020-9-29_13-28-5.png

16.

Fan Board:

image2020-9-28_23-57-24.png

17.

Pull-Tab Lock Washer:

image2020-9-28_23-23-29.png

18.

S/N Pull-Tab:

image2020-9-28_23-22-0.png

19.

Long Light Pipe For Double Fan Divider:

image2020-9-28_23-29-7.png

20.

COM Express Spacers:

image2020-10-7_17-59-13.png

21.

Main Board Spacers:

image2020-9-28_23-53-18.png

22.

Main Board Guide Pin:

image2020-9-28_23-48-58.png

© Copyright 2023, NVIDIA. Last updated on May 22, 2023.