Technical information
138
.
xSeries 370 systems contains an LVDS backplane supporting two hot-swap drive bays that support installation of up to two 3.5in, slim-high or half-high HDDs. The
backplane is connected to the internal Wide Ultra2 SCSI controller through a 16-bit LVD SCSI cable. RAID support for the internal hot-swap drive bays is provided by
adding a supported RAID adapter and moving the standard SCSI cable from the onboard controller to the optional RAID controller. The standard external Wide
Ultra2 SCSI port uses a 0.8mm Very High Density Connector Interface (VHDCI).
14848 - - 28
2
or 14
4
15488 - - - 15
6
16384 - - 32
2, 3
or 16
3
16896 - - - 16
2
18944 - - - 18
2
20992 - - - 20
2
23040 - - - 22
2
25088 - - - 24
2
27136 - - - 26
2
29184 - - - 28
2
30720 - - - 30
5
32768 - - - 32
3
This table does not represent all possible memory configurations. Memory modules may vary in price per MB. Selection of smaller RDIMMs may provide a more cost-
effective alternative to using larger RDIMMs.
NOTE: Cache line interleaving may be enabled by installing Netfinity 8500R Memory Expansion Card (P/N 28L4454) with as few as two RDIMMs. Matched pairs must be
installed if the memory expansion card is present.
1. Network operating systems may limit the maximum amount of addressable memory. See the operating system specifications for further information.
2. Netfinity 8500R Memory Expansion Card (P/N 28L4454) is required for installation of greater than 16 RDIMMs.
3. Requires removal of standard memory.
4. Models with 4 x 128 RDIMMs standard require Netfinity 8500R Memory Expansion Card (P/N 28L4454) for installation of greater than 16 RDIMMs.
5. Requires removal of all but two of the standard RDIMMs.
6. Requires removal of all but one of the standard RDIMMs.
7. When P/N 33L3149 is installed in servers that have been upgraded with an optional memory card, RDIMMs must match in slot pairs from one card to another (size,
capacity and type).
Part Number Memory Description
1
20L0245 Netfinity 128MB SDRAM ECC RDIMM II
20L0247 Netfinity 256MB SDRAM ECC RDIMM II
20L0249 Netfinity 512MB SDRAM ECC RDIMM II
28L4454 Netfinity 8500R Memory Expansion Card
2
33L3056 Netfinity 1GB SDRAM ECC RDIMM II
33L3149 512MB 100MHZ ECC SDRAM RDIMM
3
1. xSeries 370 includes a single memory card with the ability to support up to 16GB of memory. All models contain four standard RDIMMs. For
memory installation of greater than 16GB, Netfinity 8500R Memory Expansion Card (P/N 28L4454) is required. Installation of memory on systems
containing a single memory card (standard on all models) has no restrictions on size or placement. When Netfinity 8500R Memory Expansion Card
(P/N 28L4454) is installed, the memory RDIMM in each socket of Card A must match the RDIMM in the same socket on Card B. To enable cache line
interleaving, both memory cards must be installed and configured identically.
2. Required for enablement of cache line interleaving or installation of greater than 16 RDIMMs. Configuration of the standard memory card (Card A)
and optional 28L4454 (Card B) must be identical.
3. Due to the new technology used by 512MB 100MHz ECC SDRAM RDIMM (P/N 33L3149), it should not be matched with Netfinity 512MB SDRAM
ECC RDIMM II (P/N 20L0249) when populating Memory Card B.
xSeries 370 Internal SCSI Cabling