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HP xw6600 Workstation - Removing and Replacing the Memory

This section describes how to remove and install memory modules.

Video overview

View the following video before attempting the steps in this article.
note:
This video is provided as a supplement to the instructions in this document. Read the other sections before attempting to add or replace hardware. For best quality on dial-up connections, wait until the video has fully loaded before viewing.
note:
Flash Player from Macromedia is required to view this video. If needed, visit the Macromedia website (in English) to download and install Flash.

Removing a memory module

  1. Disconnect power from the system (see Predisassembly procedures).
      caution:
    To ensure that memory modules are not damaged during removal or installation, power off the workstation and unplug the power cord from the AC power outlet. If you do not unplug the power cord before installing memory, the modules might be damaged and the system will not recognize the memory changes.
  2. Remove the side access panel (see Side access panel ).
  3. Remove the memory fan and system fan.
  4. On the memory module to be removed, push gently outward to unlock the locking levers on the module socket (1), as shown in the following figure.
    Figure :
  5. Lift the DIMM straight up out of the socket (2) and store it in an antistatic bag.

Installing a memory module

This section describes how to install a memory module.

Supported DIMM configurations

The HP xw6600 Workstation supports the following memory module configurations:
  • HP certified DDR2-667, Fully Buffered DIMMs (FBD), 72-bit ECC
  • Eight DIMM slots
  • 32GB maximum configuration with 4GB DIMMs
  • Configurable for Single Channel (one DIMM), Dual Channel (two DIMMs), or Quad Channel (four to eight DIMMs)
  • No support for mirroring
  • No spare DIMM support

Memory module installation requirements

HP ships only DIMMs that are electrically and thermally compatible with this workstation. Because third-party DIMMs might not be electrically or thermally compatible, they are not supported by HP.
  • To prevent possible damage to equipment or loss of data, ensure that the keyway cut into the bottom edge of each DIMM is aligned with the corresponding socket key as each DIMM is installed.
  • Use only HP certified and warranted, PC2–5300F, 667 MHz fully buffered DIMMs.
  • If multiple DIMMs are installed in a workstation, they must be installed in matched pairs of the same size in each channel.

Required DIMM installation order

Use the following sequence as a guide for installing memory (see the following figure for socket location):
  • Install a single DIMM configuration in socket 1.
  • Install a two-DIMM configuration as a matched pairs in sockets 1/5.
  • Install a four-DIMM configuration as two matched pairs in sockets 1/3, and 5/7.
  • Install a six-DIMM configuration as three matched pairs in sockets 1/3, 5/7, and 2/4.
  • Install an eight-DIMM configuration as four matched pairs in sockets 1/3, 5/7, 2/4, and 6/8.
When adding DIMMs to a two-DIMM configuration (installed in sockets 1/5), you might need to move a DIMM from socket 5 to socket 3 to maintain matched pairing.
Figure :
When powered on, the workstation BIOS validates the installed memory configuration. If the memory configuration is invalid, the BIOS generates one of the following error scenarios:
  • If the BIOS cannot obtain a valid memory configuration by disabling some of the installed memory, the BIOS halts the boot process with a diagnostics 2006 code for memory error (five beeps and blinks).
  • If the BIOS can find a valid memory configuration by disabling plugged-in memory, it does so and reports a warning during POST. The system can still be booted.

Installing a memory module

To install a memory module:
  1. Disconnect power from the system (see Predisassembly procedures).
  2. Remove the side access panel (see Side access panel ).
  3. Remove the memory fan and system fan.
  4. Push gently outward on the socket levers, as shown:
    Figure :
  5. Align the DIMM connector key with the DIMM socket keyway, and then seat the DIMM firmly into the socket (1), as shown:
    Figure :
  6. Secure the socket levers (2).
  7. Reinstall the system fan assembly, memory fan, and side access panel.

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