Lenovo THINKSERVER TS100 6434 Bedienungsanleitung PDF herunterladen (Seite 27)

Installing a memory module

The following notes describe the types of dual inline memory modules (DIMMs)

that the server supports and other information that you must consider when you

install DIMMs:

v The server supports only industry-standard, 1.8 V, 240-pin, double-data-rate 2

(DDR2), 800 MHz, PC2-5300 or PC2-6400, unbuffered, synchronous dynamic

random-access memory (SDRAM) dual inline memory modules (DIMMs) with

error correcting code (ECC). These DIMMs must be compatible with the latest

DDR2 800 MHz SDRAM unbuffered DIMM specification. For a list of supported

optional devices for the server, see http://www.lenovo.com/accessories.

v The optional DIMM that are available for the server are 1 GB and 2 GB. The

server supports a minimum of 1 GB and a maximum of 8 GB of system memory.

v Some servers come with two 1-GB DIMMs installed.

Depending on the DIMM sizes installed in your server, the server can support

two or four DIMMs. The 1-GB DIMM and 2-GB option kits each contain two

DIMMs.

v The system board contains four DIMM connectors and supports two-way

memory interleaving. For two-way memory interleaving, DIMMs must be

installed in matched pairs.

If one DIMM is installed in the DIMM 1 connector, when you install an

additional DIMM, it must be installed in the DIMM 3 connector, and it must be

the same size, speed, type, and technology as the DIMM in the DIMM 1

connector. You can use compatible DIMMs from various manufacturers.

If you install a second pair of DIMMs in the DIMM 2 and DIMM 4 connectors,

they do not have to be the same size, speed, type, and technology as the DIMMs

in the DIMM 1 and DIMM 3 connectors. However, the size, speed, type, and

technology of the DIMMs that you install in the DIMM 2 and DIMM 4

connectors must match each other.

v The maximum operating speed of the server is determined by the slowest

DIMM in the server.

v The server can operate in single-channel mode or dual-channel mode.

v DIMM population is based on single-rank, double-rank, or combined single-rank

and double-rank DIMMs. DIMMs must be installed in order, starting with the

DIMM connector that is farthest from the memory controller hub. Double-rank

DIMMs must be installed in the DIMM connector that is farthest from the

memory controller hub when you install a combination of single-rank and

double-rank DIMMs. The following tables show examples of populating the

server with different combinations of single-rank and double-rank DIMMs and

different operating modes.

Table 1. Single-channel mode with single-rank and double-rank DIMMs

Channel 0 Channel 1

DIMM 1 DIMM 2 DIMM 3 DIMM 4

Single-rank

Double-rank

Single-rank Single-rank

Table 2. Dual-channel mode with single-rank and double-rank DIMMs

First pair Second pair Remarks

DIMM 1 DIMM 2 DIMM 3 DIMM 4

Chapter 2. Installing optional devices 13

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