3 installing dimms, Dual branch mode sparing, Installing dimms – Kontron NSC2U IP Network Server User Manual

Page 41

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Kontron IP Network Server NSC2U

December 2009

Product Guide, rev. 1.4

41

Server Component Installations and Upgrades—NSC2U Server

• DIMM A1 and DIMM A2 need not be identical in organization, size and speed.
• DIMM B1 and DIMM B2 need not be identical in organization, size and speed.
• Sparing should be enabled in BIOS setup. The BIOS configures Rank Sparing Mode.
• The larger of the pairs {DIMM A1, DIMM B1} and {DIMM A2, DIMM B2} will be

selected as the spare pair unit.

3.4.2.9

Dual Branch Mode Sparing

Dual branch mode sparing requires that all eight DIMM slots be populated and must

comply with the following population rules:

• DIMM A1 and DIMM B1 must be identical in organization, size and speed.
• DIMM A2 and DIMM B2 must be identical in organization, size and speed.
• DIMM C1 and DIMM D1 must be identical in organization, size and speed.
• DIMM C2 and DIMM D2 must be identical in organization, size and speed.
• DIMM A1 and DIMM A2 need not be identical in organization, size and speed.
• DIMM B1 and DIMM B2 need not be identical in organization, size and speed.
• DIMM C1 and DIMM C2 need not be identical in organization, size and speed.
• DIMM D1 and DIMM D2 need not be identical in organization, size and speed.
• Sparing should be enabled in BIOS setup. The BIOS configures Rank Sparing Mode.
• The larger of the pairs {DIMM A1, DIMM B1}, {DIMM A2, DIMM B2}, {DIMM C1,

DIMM D1} and {DIMM C2, DIMM D2} will be selected as the spare pair units.

3.4.3

Installing DIMMs

Reduce the risk of electrostatic discharge (ESD) damage to the processor by doing the

following:

• Touch the metal chassis before touching the DIMM or server board.
• Keep part of your body in contact with the metal chassis to dissipate the static

charge while handling the DIMM.

• Avoid moving around unnecessarily.
• Use a ground strap attached to the front panel (with the bezel removed.)

To install DIMMs in the T5000PAL server board slots, follow these steps:

1. Remove the chassis cover and the processor air duct. For instructions, see

Section 3.2.1

and

Section 3.2.5

.

2. Locate the DIMM sockets on the server board. (See

Figure 7

and

Figure 24

.)

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