Lenovo 7D7Q, Руководство по обслуживанию

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d. Remove the PCIe adapter from PCIe slot 3. See “Remove the PCIe adapter (Slot 3)” on page
97 .
e. Disconnect the backplate or the backplane cables from the system board. See “Backplane
and backplate cable routing” on page 41 .
f. Disconnect the fan cables from the system board. See “Fan cable routing” on page 37 .
g. Disconnect the front operator panel cables from the system board. See “Front panel cable
routing” on page 35 .
h. Remove the memory modules. See “Remove a memory module” on page 89 .
i. Remove the heat sink. See “Remove the heat sink” on page 86 .
j. Remove the processor. See “Remove the processor” on page 114 .
Step 2. Remove all eight screws that secure the system board to the chassis.
Figure 116. System-board screws location
Notes:
• The order and locations of screws removal:
1 between the SATA connectors and the
system power connector
5 the lower right side
2 near the CMOS battery 6
the upper left side
3 near NMI button 7 the upper right side
4 near front USB 3.0 / 2.0 header 8 the lower left side
• For reference, the torque which is required for the screws to be fully tightened or removed is 5.0
+/- 0.5 lb-in.
Step 3. Slightly lift up the front side of the system board; then, slide the system board towards the front of
the server and lift it out of the server.
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ThinkSystem SR250 V2 Maintenance Manual