To reinstall the system board, complete the following steps.
Thumbscrew
Pin
1. Align the system board at an angle, as shown in the illustration; then, rotate
and lower it flat and slide it back toward the rear of the server. Make sure that
the rear connectors extend through the rear of the chassis.
2. Reconnect to the system board the cables that you disconnected in step 10 of
“Removing the system board” on page 290 (see “Internal cable routing and
connectors” on page 194).
3. Rotate the system-board thumbscrews toward the rear of the server until the
latch clicks into place.
4. Install the fans.
5. Install each microprocessor with its matching heat sink (see “Installing a
microprocessor and heat sink” on page 282).
6. Install the DIMMs (see “Installing a memory module” on page 250).
7. Install the air baffle (see “Installing the air baffle” on page 208), making sure
that all cables are out of the way.
8. If necessary, install the Ethernet adapter.
294 IBM System x3650 M4 Type 7915: Problem Determination and Service Guide