HP NetServer LXr 8000 Memory Upgrade Guide HP Part Number 5967-5277 Printed in October 1998
Notice Hewlett-Packard makes no warranty of any kind with regard to this material, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose. Hewlett-Packard shall not be liable for errors contained herein or for incidental or consequential damages in connection with the furnishing, performance, or use of this material.
Audience Assumptions This guide is for the person who installs, administers, and troubleshoots LAN servers. Hewlett-Packard Company assumes that you are qualified to service computer equipment and trained in recognizing hazards in products with hazardous energy levels.
Contents Preface......................................................................................................1 Introduction............................................................................................1 Purpose of this Guide............................................................................2 Related Documentation.........................................................................2 Tools You Need.............................................................................
Preface Introduction The HP NetServer LXr 8000 is an Intel-CPU based network server that can use up to 8 GB of memory. This memory is situated on two boards that communicate with the rest of the NetServer via the midplane connector. Each memory board can hold up to 4 GB of memory, arranged in four banks of four buffered DIMMs. These DIMMs can be 64 MB or 256 MB, 50 ns EDO memory. The standard configuration of memory is 256 MB on the primary (right) board, as four 64 MB DIMMs in slots J1 through J4.
Purpose of this Guide This guide tells how to: • Remove and reinstall the HP NetServer LXr 8000 memory board for a memory upgrade • Install DIMMs in the specified interleave configuration on the memory board • Remove DIMMs and downsize the memory configuration Related Documentation The following documents describe the HP NetServer LXr 8000: • The HP NetServer LXr 8000 Installation Guide • HP NetServer LXr 8000 Technical Reference Card • HP NetServer Online Documentation CD-ROM Tools You Need To install t
1 Preparing for Installation Verify Contents CAUTION Do not remove the DIMM from its bag until you are ready to install it. Make sure the bag remains sealed. The DIMM is sensitive to humidity, so desiccant has been packed in the bag containing the DIMM. When the DIMM has been installed and the HP NetServer is running, it is no longer sensitive to humidity. Unpack the shipping box and verify that you received the contents listed below for the Memory Upgrade Kit.
Figure 1-1. EDO DIMM NOTE Be sure to keep the bag around the DIMM sealed until you are ready to install it.
• HP Navigator CD-ROM. You are not required to use the HP Navigator CD-ROM to reconfigure your system after installing memory. However, we recommend that you use it to ensure that you have the latest drivers and information. • HP NetServer Online Documentation CD-ROM. Prepare for Installation Gather the tools and the setup information you need before beginning the conversion. Locate the HP NetServer where there will be sufficient space to remove the bezel and add memory easily.
2 Installing Memory and Memory Boards Memory Configuration Guidelines The HP NetServer accepts one or two memory boards. You remove and insert the boards through the front of the server. The boards sit horizontally in two side-by-side bays, and plug into connectors on the server’s midplane board. Each memory board supports four-way interleaving between its own DIMMs. There can also be board-to-board interleaving if both boards are populated identically.
NOTE Keep both memory boards in the HP NetServer during operation, even if the secondary board has no DIMMs. The empty board acts as a terminator for the memory board slot. Figure 2-1 shows the location of the memory boards. Primary Memory Board Secondary Memory Board Figure 2-1.
A memory board has 16 DIMM sockets and accepts 64 MB or 256 MB buffered EDO DIMMs (50 ns). Each board has a maximum capacity of 4 GB when fully populated with 256 MB DIMMs. The minimum memory configuration is four 64 MB DIMMs on the main memory board (in slots J1, J2, J3, and J4). Figure 2-2 shows a memory board and a DIMM fitting into a slot on the board. Figure 2-2.
The standard configuration of memory is 256 MB on the primary board, as four 64 MB DIMMs in slots J1 through J4 (shown in Figure 2-2 above). Add memory four DIMMs at a time. If you use both boards, both must have the same type and number of DIMMs in the same slots. For example, if you have filled one board with sixteen 64 MB DIMMs, and want to add more memory, you will need to move 4 DIMMs to the second board, then add another 8 DIMMs to it, so that each board has 12 DIMMs.
Key: Bank A (Slots J1, J2, J3, J4) Bank B (Slots J5, J6, J7, J8) Bank C (Slots J9, J10, J11, J12) Bank D (Slots J13, J14, J15, J16) J1 J2 J5 J6 J9 J10 J13 J14 J3 J4 J7 J8 J11 J12 J15 J16 Figure 2-3.
Observe these guidelines when adding memory: • Add (or remove) DIMMs to the memory board in groups of four. Each group of four DIMMs must fill one bank on a memory board. A bank must be either fully populated or completely empty. See Figure 2-3. • When populating a memory board, fill Bank A first, then Bank B, then Bank C, and finally Bank D. You must do this if a board is to have four-way interleaving. • All DIMMs within a bank must be identical in size and speed.
example, if one memory board holds eight 256 MB DIMMs in Banks A and B and eight 64MB DIMMs in Banks C and D, the other board must match this configuration exactly if card-to-card interleaving is to take place.) NOTE There is no special order for interspersing banks of 64 MB and 256 MB DIMMs on memory boards. Any arrangement is allowed. Board-to-board interleaving offers enhanced performance, and is recommended.
Key: Bank A Bank B Bank C Bank D Primary Board Secondary Board J1 J2 J5 J6 J9 J10 J13 J14 J1 J2 J5 J6 J9 J10 J13 J14 J3 J4 J7 J8 J11 J12 J15 J16 J3 J4 J7 J8 J11 J12 J15 J16 Figure 2-4.
Key: Bank A Bank B Bank C Bank D Primary Board Secondary Board J1 J2 J5 J6 J9 J10 J13 J14 J1 J2 J5 J6 J9 J10 J13 J14 J3 J4 J7 J8 J11 J12 J15 J16 J3 J4 J7 J8 J11 J12 J15 J16 Figure 2-5.
Key: Bank A Bank B Bank C Bank D Primary Board Secondary Board J1 J2 J5 J6 J9 J10 J13 J14 J1 J2 J5 J6 J9 J10 J13 J14 J3 J4 J7 J8 J11 J12 J15 J16 J3 J4 J7 J8 J11 J12 J15 J16 Figure 2-6.
Key: Bank A Bank B Bank C Bank D Primary Board Secondary Board J1 J2 J5 J6 J9 J10 J13 J14 J1 J2 J5 J6 J9 J10 J13 J14 J3 J4 J7 J8 J11 J12 J15 J16 J3 J4 J7 J8 J11 J12 J15 J16 Figure 2-7.
Removing the Memory Board To remove the memory board, follow this procedure: 1. Power down the HP NetServer. See Chapter 2 of the HP NetServer LXr 8000 Installation Guide for details. 2. Remove the HP NetServer’s front bezel. See Chapter 3 of the HP NetServer LXr 8000 Installation Guide for details. 3. On the front of the HP NetServer, locate the LCD display. On top of the display's housing is a small handle. With one finger, pull up on this handle. The LCD display should move up about ½ inch and stop.
Figure 2-8. Gaining Access to the Memory Board Bays 4. The memory bays are protected by an access panel. Loosen the three captive screws that hold the panel in place, and then remove the panel. See Figure 2-8.
5. The memory boards sit side by side underneath the processor baseboard. Choose the board you want to remove, and pull open the two retaining latches that hold it in place. See Figure 2-9. Figure 2-9.
6. Hold the memory board by the corners, and carefully pull the board from its slot until the edge connectors are free of the system board connectors. 7. Place the memory board component-side up on a firm, anti-static surface for protection. Installing DIMMs on the Memory Board Follow these steps to install a DIMM in a slot on the memory board. CAUTION Wear a grounded anti-static wrist strap connected to the NetServer chassis before installing DIMMs. Use only DIMMs acquired from HP.
3. Refer to Figures 2-1, 2-2, 2-3, 2-4, 2-5, and 2-6. Locate the slot where you will install the DIMM, and spread the two DIMM retaining clips outward. See Figure 2-10. Figure 2-10. Installing a DIMM Module 4. Align the notches on the DIMM with the notches on the socket. 5. Hold the DIMM so that the front edge faces straight down into the connector (at a 90° angle to the memory board). 6. Insert the DIMM carefully into the desired slot.
CAUTION Do not rock the DIMM into place, but apply firm and even pressure. If a gap exists between the retaining clips and the DIMM module, remove the module and repeat steps 5-6. 7. Repeat steps 3 through 6 to install the other three DIMMs, according to the rules listed in “Memory Configuration Guidelines," until you have installed all DIMMs for your memory configuration.
• When removing banks of DIMMs from a system with two memory boards, make sure that both boards have identical DIMM configurations when you finish. (But if you are reducing the system to its minimum memory configuration, four DIMMs, put all four DIMMs on the primary (right) board and leave the other board empty.) See “Memory Configuration Guidelines” for DIMM placement guidelines. Follow these steps to remove a bank of four DIMMs: 1. Power down the HP NetServer.
CAUTION Close all retaining clips on the memory board before inserting it into your NetServer. This includes clips on empty slots as well as those on slots containing DIMMs. This facilitates insertion of the memory board. 9. Replace the memory board. See "Replacing the Memory Board." Replacing the Memory Board Once you have installed the DIMMs required for your desired configuration, do the following: 1. Locate the memory board slot. 2. Hold the memory board by its corners, with the component side down.
Figure 2-11. Memory Board Installation 4. Close the retaining latches on the front of the memory board to seat it snugly. The latches should clamp down on the sides of the bay and hold the board firmly in place.
5. Replace the protective screen (see Figure 2-8). 6. Replace the front bezel and reconnect the power cord. See Chapters 2 and 3 of the HP NetServer LXr 8000 Installation Guide for details.
3 Warranty and Support The hardware warranty below applies to components purchased as accessories. If your component was factory installed as part of an HP NetServer model, refer to the warranty statement provided with your system documentation. Hardware Warranty This HP NetServer accessory is covered by a limited hardware warranty for a period of one year from receipt by the original end-user purchaser.
Refer to the warranty statement provided with your original HP NetServer system documentation for the warranty limitations, customer responsibilities, and other terms and conditions. HP Repair and Telephone Support Refer to the Service and Support section of your HP NetServer system documentation for instructions on how to obtain HP repair and telephone support.
