HP EliteDesk 705 G2 Microtower PC Bedienungsanleitung PDF herunterladen (Seite 17)

Installing additional memory

The computer comes with low power double data rate 3 synchronous dynamic random access memory

(DDR3L-SDRAM) dual inline memory modules (DIMMs). It also supports standard DDR3-SDRAM DIMMS.

DIMMs

The memory sockets on the system board can be populated with up to four industry-standard DIMMs. These

memory sockets are populated with at least one preinstalled DIMM. To achieve the maximum memory

support, you can populate the system board with up to 32-GB of memory configured in a high-performing

dual channel mode.

DDR3/DDR3L-SDRAM DIMMs

For proper system operation, the DIMMs must be:

●

industry-standard 240-pin

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unbuffered non-ECC PC3-12800 DDR3/DDR3L-1600 MHz-compliant

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1.5 volt DDR3-SDRAM DIMMs or 1.35 volt DDR3L-SDRAM (Low Power) DIMMs

The DIMMs must also:

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support CAS latency 11 DDR3/DDR3L 1600 MHz (11-11-11 timing)

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contain the mandatory JEDEC SPD information

In addition, the computer supports:

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512-Mbit, 1-Gbit, and 2-Gbit non-ECC memory technologies

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single-sided and double-sided DIMMs

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DIMMs constructed with x8 and x16 DDR devices; DIMMs constructed with x4 SDRAM are not supported

NOTE: The system will not operate properly if you install unsupported DIMMs.

Populating DIMM sockets

There are four DIMM sockets on the system board, with two sockets per channel. The sockets are labeled

DIMM1, DIMM2, DIMM3, and DIMM4. Sockets DIMM1 and DIMM2 operate in memory channel B. Sockets DIMM3

and DIMM4 operate in memory channel A.

The system will automatically operate in single channel mode, dual channel mode, or flex mode, depending

on how the DIMMs are installed.

NOTE: Single channel and unbalanced dual channel memory configurations will result in inferior graphics

performance.

●

The system will operate in single channel mode if the DIMM sockets are populated in one channel only.

●

The system will operate in a higher-performing dual channel mode if the total memory capacity of the

DIMMs in Channel A is equal to the total memory capacity of the DIMMs in Channel B. The technology

and device width can vary between the channels. For example, if Channel A is populated with two 1-GB

DIMMs and Channel B is populated with one 2-GB DIMM, the system will operate in dual channel mode.

●

The system will operate in flex mode if the total memory capacity of the DIMMs in Channel A is not equal

to the total memory capacity of the DIMMs in Channel B. In flex mode, the channel populated with the

least amount of memory describes the total amount of memory assigned to dual channel and the

remainder is assigned to single channel. For optimal speed, the channels should be balanced so that the

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