Sas Backplane - IBM System x3950 Type 8878 Service Manual

5. Remove the power supplies (see "Hot-swap power supply" on page 38).
6. Pull the two blue latches on the power-supply structure toward the front of the
7. Grasp the handle in the middle of the structure and rotate the structure up,
8. Lift the structure out of the server, and make sure that the alignment tabs clear
9. If you are instructed to return the power-supply structure, follow all packaging
To install the replacement power-supply structure, complete the following steps.
Attention:
1. Align the tabs on the power-supply structure with the notches on the rear of the
2. Push the two blue latches of the power-supply structure toward the rear of the
3. Replace the power supplies.
4. Replace the memory cards.
5. Install the top cover (see "Top cover and bezel" on page 45).
6. Slide the server into the rack.
7. Connect the cables and power cords (see "Connecting the cables" on page 34
8. Turn on all attached devices and the server.

SAS backplane

To remove the Serial Attached SCSI (SAS) backplane, complete the following steps:
Guide channels
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IBM System x3950 Type 8878 and System x3950 E Type 8879: Problem Determination and Service Guide
server; the structure will disengage from the chassis.
allowing the structure to pivot at the chassis front.
the chassis.
instructions, and use any packaging materials for shipping that are supplied to
you.
Do not allow any cables to be pinched or caught on metal protrusions.
chassis; then, gently lower the structure into the server. Make sure that the
structure is firmly seated in the chassis.
server until they lock the structure into position.
for cabling instructions).
SAS connectors
Release tabs