Intel SR1520ML User Guide - Page 50

Memory Population Rules, Installing DIMMs

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the system, turn off the system by pressing the power button, and unplug the AC power cord from the system or wall outlet. The silkscreen on the board for the DIMMs displays DIMMB2, DIMMB1, DIMMA2, DIMMA1 starting from the edge of the board. DIMMA1 is the socket closest to the processor socket. See "Memory" on page 12 for a discussion of the memory requirements and options. See "Server System References" on page xix for a link to the list of tested DIMMs. Memory Population Rules Each server board in the Intel® Server System SR1520ML provides four DIMM sockets across two banks. For each server board, Bank 1 consists of DIMM sockets A1 and B1. Bank 2 consists of DIMM sockets A2 and B2. For single-channel operation, either channel may be used and DIMM sockets within the same channel can be populated in any order. For dual-channel asymmetric mode, DIMM sockets may be populated in any order. DIMMs must meet the following requirements: • The minimum memory is one 256 MB DIMM in socket A1 on each server board. Socket A1 is the blue socket that is the closest to the center of the server board. This provides single-channel mode for each server board, • Use only DIMMs with DDR2 DRAM technology. • Use only DDR2-667 and DDR2-800 stacked DIMM modules. The channels will use the speed of the slowest DIMM on the server board. For dual-channel operation, the following conditions must be met: • Populate two identical DIMMs in sockets DIMMA1 and DIMM B1. These are the two blue sockets • Populate four identical DIMMs in each socket location. For a complete list of supported memory DIMMs, see http://support.intel/com/support/ motherboards/server/X38ML. Installing DIMMs To install DIMMs, follow these steps: 1. Observe the safety and ESD precautions at the beginning of this book. See "Safety Information" on page iii. 2. Power down the server and unplug all peripheral devices and the AC power cable. 3. Remove the server system cover. For instructions, see "Removing the Server System Cover" on page 14. 4. Remove the processor air duct. For instructions, see "Removing the Processor Air Duct" on page 28. 5. Locate the DIMM sockets. See Figure 23. 30 Intel® Server System SR1520ML User's Guide

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30
Intel
®
Server System SR1520ML User’s Guide
the system, turn off the system by pressing the power button, and unplug the AC power
cord from the system or wall outlet.
The silkscreen on the board for the DIMMs displays DIMMB2, DIMMB1, DIMMA2,
DIMMA1 starting from the edge of the board. DIMMA1 is the socket closest to the
processor socket. See
“Memory” on page 12
for a discussion of the memory requirements
and options. See
“Server System References” on page xix
for a link to the list of tested
DIMMs.
Memory Population Rules
Each server board in the Intel
®
Server System SR1520ML provides four DIMM sockets
across two banks. For each server board, Bank 1 consists of DIMM sockets A1 and B1.
Bank 2 consists of DIMM sockets A2 and B2. For single-channel operation, either
channel may be used and DIMM sockets within the same channel can be populated in any
order. For dual-channel asymmetric mode, DIMM sockets may be populated in any order.
DIMMs must meet the following requirements:
•
The minimum memory is one 256 MB DIMM in socket A1 on each server board.
Socket A1 is the blue socket that is the closest to the center of the server board. This
provides single-channel mode for each server board,
•
Use only DIMMs with DDR2 DRAM technology.
•
Use only DDR2-667 and DDR2-800 stacked DIMM modules. The channels will use
the speed of the slowest DIMM on the server board.
For dual-channel operation, the following conditions must be met:
•
Populate two identical DIMMs in sockets DIMMA1 and DIMM B1. These are the
two blue sockets
•
Populate four identical DIMMs in each socket location.
For a complete list of supported memory DIMMs, see
http://support.intel/com/support/
motherboards/server/X38ML
.
Installing DIMMs
To install DIMMs, follow these steps:
1.
Observe the safety and ESD precautions at the beginning of this book. See
“Safety
Information” on page iii
.
2.
Power down the server and unplug all peripheral devices and the AC power cable.
3.
Remove the server system cover. For instructions, see
“Removing the Server
System Cover” on page 14
.
4.
Remove the processor air duct. For instructions, see
“Removing the Processor Air
Duct” on page 28
.
5.
Locate the DIMM sockets. See
Figure 23
.