Kontron NSC2U IP Network Server - Manual (Page 35)

Kontron IP Network Server NSC2U
December 2009 Product Guide, rev. 1.4
35
Server Component Installations and Upgrades—NSC2U Server
• For configurations that are compatible with many modems and other serial devices
that require a DCD signal, the jumper block must be configured with the serial port
jumper over pins 1 and 2.
Pin 1 on the jumper is identified by “*”.
3.4.2 Configuring Memory DIMMs
The memory DIMM slots are located on the T5000PAL server board at the rear right
portion of the NSC2U Server chassis. See Figure 33 for the location of the DIMM slots.
The silkscreen on the board for the DIMMs displays DIMMA1, DIMMA2, DIMMA3,
DIMMB1, DIMMB2 and DIMMB3, starting from the inside (left side) of the server board.
DIMMB3 is the socket closest to the outside edge of the server board.
The Memory Controller Hub (MCH) on the T5000PAL server board provides for four
channels of Fully Buffered DIMM (FB-DIMM) memory. Each channel can support up to
two Dual Ranked FB-DIMM DDR2 DIMMs. FB-DIMM memory channels are organized
into two branches for support of RAID 1 (mirroring). The MCH can support up to 8
DIMMs for a maximum memory size of 32 Gbytes of physical memory in non-mirrored
mode and 16 Gbytes of physical memory in a mirrored configuration.
For DDR2 533 FB-DIMM memory, the read bandwidth for each FB-DIMM channel is 4.25
Gbytes/s, which gives a total read bandwidth of 17 Gbytes/s for four FB-DIMM
channels. This provides 8.5 Gbytes/s of write memory bandwidth for four FB-DIMM
channels.
For DDR2 667 FB-DIMM memory, the read bandwidth for each FB-DIMM channel is 5.3
Gbytes/s, which gives a total read bandwidth of 21 GBytes/s for four FB-DIMM
channels. This provides 10.7 Gbytes/s of write memory bandwidth for four FB-DIMM
channels.
The total bandwidth is based on read bandwidth, so the total bandwidth is 17 Gbytes/s
for DDR2 533 FB-DIMMs and 21.0 Gbytes/s for DDR2 667 FB-DIMMs.
On the T5000PAL server board, a pair of channels becomes a branch where Branch 0
consists of channels A and B, and Branch 1 consists of channels C and D. FBD memory
channels are organized into two branches for support of RAID 1 (mirroring).
Figure 19. BIOS Select Jumper (J3H1)