IBM 8685 - eServer xSeries 255, Installation Manual

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Table 3. Microprocessor and VRM installation order (continued)
Microprocessor number Microprocessor socket
label VRM connector
2 CPU2 J35 (plastic retaining clip
provided on VRM housing)
3 CPU3 J36 (standard, metal
retaining clip provided on
VRM housing)
4 CPU4 J37 (standard, metal
retaining clip provided on
VRM housing)
The following illustration is a layout of the microprocessor socket locations and
other microprocessor-related components on the system board.
VRM 4 (J37) VRM 1 (J34)
VRM 2 (J35)
VRM 3 (J36)
Microprocessor 4
(CPU4) Microprocessor 1
(CPU1)
Microprocessor 2
(CPU2) Microprocessor 3
(CPU3)
Complete the following steps to install an additional microprocessor.
1. Review the information beginning with “Safety” on page v through “Handling
static-sensitive devices” on page x.
2. Turn off the server and disconnect all power cords and external cables.
3. Remove the top cover.
4. Remove the air baffle.
5. Select the socket in which you want to install the microprocessor.
6. Install a VRM in the corresponding VRM connector (see the preceding
illustration for locations).
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IBM xSeries 255 Type 8685: Installation Guide