Compaq 315eu Maintenance and Service Guide - Compaq 100eu Small Form Factor, 1 - Page 92

Memory Module, DDR3-SDRAM DIMMs

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Memory Module Description 1-GB memory module (PC2-6400) Spare part number 626897-001 The computer comes with double data rate 3 synchronous dynamic random access memory (DDR3SDRAM) small outline dual inline memory modules (SODIMMs). DDR3-SDRAM DIMMs The memory sockets on the system board can be populated with up to two industry-standard SODIMMs. These memory sockets are populated with at least one preinstalled SODIMM. To achieve the maximum memory support, you can populate the system board with up to 8-GB of memory. For proper system operation, the SODIMMs must be: ● industry-standard 204-pin ● unbuffered non-ECC PC3-8500 DDR3-1066 MHz-compliant or PC3-10600 DDR3-1333 MHz- compliant ● 1.5 volt DDR3-SDRAM SODIMMs The DDR3-SDRAM SODIMMs must also: ● support CAS latency 7 DDR3 1066 MHz (7-7-7 timing) and CAS latency 9 DDR3 1333 MHz (9-9-9 timing) ● contain the mandatory Joint Electronic Device Engineering Council (JEDEC) specification In addition, the computer supports: ● 512-Mbit, 1-Gbit, and 2-Gbit non-ECC memory technologies ● single-sided and double-sided SODIMMS ● SODIMMs constructed with x8 and x16 devices; SODIMMs constructed with x4 SDRAM are not supported NOTE: The system will not operate properly if you install unsupported SODIMMs. The system will automatically operate in single channel mode, dual channel mode, or flex mode, depending on how the SODIMMs are installed. ● The system will operate in single channel mode if the SODIMM sockets are populated in one channel only. ● The system will operate in a higher-performing dual channel mode if the memory capacity of the SODIMM in Channel A is equal to the memory capacity of the SODIMM in Channel B. ● The system will operate in flex mode if the memory capacity of the SODIMM in Channel A is not equal to the memory capacity of the SODIMM in Channel B. In flex mode, the channel populated with the least amount of memory describes the total amount of memory assigned to dual 82 Chapter 7 Removal and Replacement Procedures Small Form Factor (SFF) Chassis

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Memory Module
Description
Spare part number
1-GB memory module (PC2-6400)
626897-001
The computer comes with double data rate 3 synchronous dynamic random access memory (DDR3-
SDRAM) small outline dual inline memory modules (SODIMMs).
DDR3-SDRAM DIMMs
The memory sockets on the system board can be populated with up to two industry-standard
SODIMMs. These memory sockets are populated with at least one preinstalled SODIMM. To achieve
the maximum memory support, you can populate the system board with up to 8-GB of memory.
For proper system operation, the SODIMMs must be:
●
industry-standard 204-pin
●
unbuffered non-ECC PC3-8500 DDR3-1066 MHz-compliant or PC3-10600 DDR3-1333 MHz-
compliant
●
1.5 volt DDR3-SDRAM SODIMMs
The DDR3-SDRAM SODIMMs must also:
●
support CAS latency 7 DDR3 1066 MHz (7-7-7 timing) and CAS latency 9 DDR3 1333 MHz
(9-9-9 timing)
●
contain the mandatory Joint Electronic Device Engineering Council (JEDEC) specification
In addition, the computer supports:
●
512-Mbit, 1-Gbit, and 2-Gbit non-ECC memory technologies
●
single-sided and double-sided SODIMMS
●
SODIMMs constructed with x8 and x16 devices; SODIMMs constructed with x4 SDRAM are not
supported
NOTE:
The system will not operate properly if you install unsupported SODIMMs.
The system will automatically operate in single channel mode, dual channel mode, or flex mode,
depending on how the SODIMMs are installed.
●
The system will operate in single channel mode if the SODIMM sockets are populated in one
channel only.
●
The system will operate in a higher-performing dual channel mode if the memory capacity of the
SODIMM in Channel A is equal to the memory capacity of the SODIMM in Channel B.
●
The system will operate in flex mode if the memory capacity of the SODIMM in Channel A is not
equal to the memory capacity of the SODIMM in Channel B. In flex mode, the channel populated
with the least amount of memory describes the total amount of memory assigned to dual
82
Chapter 7
Removal and Replacement Procedures Small Form Factor (SFF) Chassis