HP DX2250 manual Installing Additional Memory, DDR2-SDRAM DIMMs

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Installing Additional Memory

The computer comes with double data rate 2 synchronous dynamic random access memory (DDR2- SDRAM) dual inline memory modules (DIMMs).

DIMMs

The memory sockets on the system board can be populated with up to two industry-standard DIMMs. These memory sockets are populated with at least one preinstalled DIMM. The sockets are labeled DIMM1 and DIMM2. To achieve the maximum memory support, you can populate the system board with up to 2GB (2 x 1GB) of memory.

DDR2-SDRAM DIMMs

For proper system operation, the DDR2-SDRAM DIMMs must be:

industry-standard 240-pin

unbuffered PC2-5300 667 MHz-compliant

1.9 volt DDR2-SDRAM DIMMs

The DDR2-SDRAM DIMMs must also:

support CAS latency 4 (CL = 4) for PC2-5300 667 MHz

contain the mandatory JEDEC SPD information

In addition, the computer supports:

256Mbit, 512Mbit, and 1Gbit non-ECC memory technologies

single-sided and double-sided DIMMs

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

NOTE The system will not start if you install unsupported DIMMs.

ENWW

Installing Additional Memory 7

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Contents Hardware Reference Guide dx2250 Microtower Model Hardware Reference Guide About This Book Iv About This Book Table of contents Enww Standard Configuration Features Product FeaturesServiceability Features Enww Removing the Computer Access Panel and Front Bezel Hardware Upgrades2Removing the Front Bezel Hardware Upgrades 3Removing a 5.25 Bezel Blank Removing a 5.25 Drive Bezel BlankRemoving a 3.5 Drive Bezel Blank 4Removing a 3.5 Bezel Blank Hardware UpgradesDIMMs Installing Additional MemoryDDR2-SDRAM DIMMs 5Installing a Dimm Hardware Upgrades Installing DIMMsEnww Installing an Expansion Card Installing an Expansion Card Locating Drive Positions Replacing or Upgrading a DriveRemoving a 5.25 Optical Drive Device Retainer Screws Guide Screws Removing a 3.5 Media Card Reader or Diskette Drive11Removing a 3.5 Hard Drive Removing a 3.5 Hard Drive12Installing a Security Lock Hardware Upgrades Installing a Security LockBattery Replacement Type 2Removing and Replacing a Coin Cell Battery Type Enww Computer Operating Guidelines and Routine Care Cleaning Optical Drive PrecautionsSafety Shipping PreparationPreventing Electrostatic Damage Electrostatic DischargeGrounding Methods
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