Compaq DL590 - HP ProLiant - 1 GB RAM Technology Brief page 6

TC020702TB
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ECHNOLOGY RIEF
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Memory
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The ProLiant DL590/64 server supports up to 64 GB of industry-standard 100-MHz ECC
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SDRAM. Two memory boards provide 32 dual inline memory module (DIMM) sockets each to
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accommodate a total of 64 DIMMs (see Figure 3). One memory board attaches to the top of the
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processor board, and one memory board attaches to the bottom.
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Figure 3: Each memory board in the ProLiant DL590/64 server supports up to 32 DIMMs.
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Advanced ECC memory technology with single-bit error correction and double-bit and nibble
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error detection technology is integral to the Intel 82460GX chipset. Advanced ECC memory
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improves data integrity of servers and significantly reduces the probability of fatal memory errors.
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With fewer memory errors, overall availability of the server improves.
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The ProLiant DL590/64 server comes standard with 1 GB (733-MHz model) or 4 GB (800-MHz
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model) of memory. The 733-MHz model comes with one memory board supporting 32 DIMM
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sockets; the 800-MHz model comes with two memory boards supporting up to 64 GB of memory
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using 1-GB DIMMs. The 733-MHz model may be upgraded with an additional, optional memory
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board. Memory is expandable, four DIMMs at a time, to a maximum total of 64 GB.
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Compaq strongly recommends using DIMMs supplied by Compaq because of the rigorous testing
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they undergo in ProLiant systems. However, the ProLiant DL590/64 supports industry-standard
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168-pin PC100 CL2 ECC Registered DIMMs with some restrictions
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not adhere to these restrictions may result in error messages and possible loss of data.
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. . I/O
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Additional performance for the ProLiant DL590/64 server is provided with a powerful 64-bit I/O
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subsystem. The server has eight 64-bit, 66-MHz hot-plug PCI slots and three 64-bit, 33-MHz slots
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(Figure 4). Slots 1, 10, and 11 operate at 5 volts and run at 33 MHz only. Slots 2 through 9
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operate at 3.3 volts and will run at 33 MHz or 66 MHz.
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Figure 4: The ProLiant DL590/64 implements 64-bit PCI technology.
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Check with your authorized Compaq representative for more information on these restrictions
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and correct memory usage.
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(cont.)
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. The use of DIMMs that do