HP s dx5150 manual Dimm Sockets

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Hardware Upgrades

DIMM Sockets

The system will automatically operate in single channel mode or a higher-performing dual channel mode, depending on how the DIMMs are installed.

In single channel mode, always populate the XMM1 socket first. If you add a second DIMM of a different memory size than the first, install it in XMM3. Otherwise, the system will not operate.

In single channel mode, the maximum operational speed is determined by the slowest DIMM in the system. If the system is populated with a DIMM that is 266 MHz and a second DIMM that is 333 MHz, the system will run at the slower of the two speeds.

In dual channel mode, all DIMMs must be identically matched. If you are populating only two DIMM sockets, you must use identical DIMMs and populate them in XMM1 and XMM2, the black sockets. If you are populating all four DIMM sockets, you must either use identical DIMMs in all sockets or use identical DIMM pairs in each pair of sockets, XMM1 and XMM2 black sockets and XMM3 and XMM4 blue sockets. Otherwise, the system may not operate properly.

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Hardware Reference Guide

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Contents Hardware Reference Guide Hardware Reference Guide HP Business Desktops Contents Index Product Features Standard Configuration FeaturesFront Panel Components Front Panel ComponentsRear Panel Components Rear Panel ComponentsStandard Keyboard Components Caps Lock, and Scroll LockSerial Number Location Special Mouse FunctionsOptional HP Modular Keyboard Product Features Hardware Upgrades Serviceability FeaturesRemoving the Computer Access Panel and Front Bezel Removing the Computer Access Panel Removing the Front Bezel DIMMs Installing Additional MemoryDDR-SDRAM DIMMs Dimm Sockets Description Socket Color Installing DDR-SDRAM DIMMs Installing a Dimm Removing or Installing an Expansion Card Remove the screw on the slot cover retention latch Removing the Expansion Slot Cover Installing an Expansion Card Removing an Expansion Card Removing an Expansion Card from a Standard Expansion Socket Replacing or Upgrading a Drive Locating Drive PositionsRemoving a Drive Hardware Upgrades Removing the Drives Replacing a Drive Sliding the Drives into the Drive Cage Reconnecting the Optical Drive Cables Hardware Upgrades Hard Drive Connector Location Configuring the Sata Hard Drive Reassembling the Computer Replacing the Side Access Panel Reconnecting the Power Cable Specifications HP dx5150 MicrotowerInput Voltage Switch Setting Battery Replacement Type Type Replacing a Coin Cell Battery Type Installing a Security Lock Security Lock ProvisionsInstalling a Padlock Preventing Electrostatic Damage Electrostatic DischargeGrounding Methods Electrostatic Discharge Computer Operating Guidelines and Routine Care Cleaning Optical Drive PrecautionsOperation Safety Shipping PreparationHardware Reference Guide Index Sata