Compaq ProLiant 6400R Compaq ProLiant 6400R Setup and Installation Guide - Page 18

Memory Board Features, Peripheral Board Features, SCSI

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Server Features 1-5 Comparing memory and 3.3-V powered PCI Expansion Board power. Each additional 512 MB draws approximately as much current as one to two PCI boards. Comparing hard drive and 5-V powered PCI Expansion Board Power. One PCI card draws as much current as two to five hard drives. In general, PCI array controllers draw more current than PCI NICs. Memory Board Features ECC memory with single-bit error correction and detection down to a single dual inline memory module (DIMM), and multibit error detection down to the memory bank 50-ns EDO buffered DIMMs standard Supports EDO-buffered, 60-ns DIMMS Expandable to 4-GB (16 x 256-MB DIMMs) 16-, 32-, 64-, 128-, 256-MB, and 4- or 8-K refreshed DIMMs installed in sets of four (bank) Supports up to four memory banks, with each consisting of four DIMMs. One bank is installed or removed at a time. Each DIMM of a given bank must be of the same size, type, and speed. However, to maintain 50-ns timing support, all four banks must contain only 50ns DIMMs. If mixed with slower (for example, 60-ns) DIMMs, the memory speed is reduced to the slowest DIMMs. Configuring your memory to take advantage of Address Bit Permuting can enhance performance. See Chapter 3. Peripheral Board Features SCSI Dual-Channel Wide-Ultra SCSI-3 Controller

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Server Features
1-5
■
Comparing memory and 3.3-V powered PCI Expansion Board power.
Each additional 512 MB draws approximately as much current as one to
two PCI boards.
■
Comparing hard drive and 5-V powered PCI Expansion Board Power.
One PCI card draws as much current as two to five hard drives.
■
In general, PCI array controllers draw more current than PCI NICs.
Memory Board Features
■
ECC memory with single-bit error correction and detection down to a
single dual inline memory module (DIMM), and multibit error detection
down to the memory bank
■
50-ns EDO buffered DIMMs standard
G
Supports EDO-buffered, 60-ns DIMMS
■
Expandable to 4-GB (16 x 256-MB DIMMs)
G
16-, 32-, 64-, 128-, 256-MB, and 4- or 8-K refreshed DIMMs
installed in sets of four (bank)
G
Supports up to four memory banks, with each consisting of four
DIMMs. One bank is installed or removed at a time. Each DIMM of
a given bank must be of the same size, type, and speed. However, to
maintain 50-ns timing support, all four banks must contain only 50-
ns DIMMs. If mixed with slower (for example, 60-ns) DIMMs, the
memory speed is reduced to the slowest DIMMs.
■
Configuring your memory to take advantage of Address Bit Permuting
can enhance performance. See Chapter 3.
Peripheral Board Features
SCSI
■
Dual-Channel Wide-Ultra SCSI-3 Controller