Remove the Midplane
Caution - The midplane weighs 80 pounds and requires two people to carry it.
- Use an antistatic wrist strap to protect the equipment from ESD damage.
- Use a T20 Torx screwdriver to detach cables from the sides of the
cabinet and the midplane.
Note - Take care not to drop the screws. They are not captive screws.
- Detach two scalability cable assembly brackets from the left side of the cabinet.
- Detach the left scalability card cage cable from the front of the midplane.
- Tape the upper cables as high as possible to the side of the
- Place the lower scalability cable assembly bracket on the floor of the cabinet.
- Repeat Step a through Step d for the cables on the right side.
- Remove the old midplane.
- In the shipping carton for the replacement midplane, locate two detachable midplane handles.
- Attach the handles to the slides:
- Extend a slide fully.
- Insert the hooked tab on the handle into the slide first, and then
lower the rear of the handle so the remaining two tabs drop into
- Push the slide back into the chassis until the handle aligns with the
side of the midplane.
- Insert the keyed pins on the handle into the keyholes on the side
of the midplane.
- Raise the spring-loaded lock pin, and then align the pin with the corresponding
hole in the base of the midplane.
- Install the second handle in the same manner.
- At the rear of the server, remove four screws that are located inside
the CMU cage area.
- Loosen screws on the midplane.
The midplane is one of two types.
- One type of midplane has 13 mounting screws.
- Another type of midplane has 21 mounting screws.
- Holding the handles, pull the midplane out of the cabinet.
The slides stop when they are fully extended.
- Use the handles to lift the midplane off the slides and out of
- Set the midplane aside on a static‐safe surface.
- Remove the handles to use with the replacement midplane.
- If your cabinet has the 21-screw midplane, lower the midplane support brackets.
Cabinets with the 13-screw midplane do not have support brackets.
Do not remove the 10‐mm nuts. Loosen them just enough to let the
brackets slip down slightly.
- Install the new midplane.
See Install the Midplane.