Chassis Plans JXT6966, Техническое описание оборудования

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Specifications JXT6966 / JXTS6966 Technical Reference
CHASSIS PLANS 1-8
DDR3-1333 Memory
Each processor on the SHB supports three separate DDR3-1333 memory interfaces. There are six active
Mini-DIMM sockets on the JXT6966 models and each one can support up to 32GB DIMMs for a total
possible DDR3 system memory capacity of 192GB. The single processor models support three active
Mini-
DIMM sockets and each socket can support up to 32GB DIMMs for a total possible DDR3 system memory capacity of
96GB on a JXTS6966.
However, currently available DDR3 Mini-DIMM memory capacities of 2GB, 4GB
and 8GB are more common in today’s market; thereby, making the maximum practical limit of system
memory supported 48GB on dual-processor SHBs and 24GB on single processor models. The peak
memory interface bandwidth per channel is 32/GB/s when using PC3-10600 (i.e. DDR3-1333) Mini-
DIMMs. Each of the direct CPU memory channel (BK##) terminates with a single in-line Mini-DIMM
memory module socket. The System BIOS automatically detects memory type, size and speed.
Chassis Plans recommends ECC registered DDR3 memory modules for use on the JXT6966/JXTS6966
SHBs and these ECC registered (72-bit) DDR3 Mini-DIMMs must be PC3-10600 or PC3-8500 compliant.
Unbuffered ECC DDR3 Mini-DIMMs are also supported on the JXT boards, but you cannot mix the two
different memory types on the same SHB.
NOTES:
 To maximize system performance and reliability, Chassis Plans recommends populating
each memory channel with DDR3 Mini-DIMMs with the same interface speed.
 All memory modules must have gold contacts.
 Low voltage (DDR3L) Mini-DIMMs are not supported.
 The SHB supports the following memory module memory latency timings:
o
6-6-6 for 800MHz DDR3 Mini-DIMMs
o
7-7-7 and 8-8-8 for 1066MHz DDR3 Mini-DIMMs
o
9-9-9 for 1333MHz DDR3 Mini-DIMMs
 Populating the memory sockets with Mini-DIMMs having different speeds is supported
on the SHB; however, the overall memory interface speed will run at the speed of the
slowest Mini-DIMM.
 Populate the memory sockets starting with the Mini-DIMM socket closest to the CPU
and work your way toward the edges of the SHB as illustrated in the chart below:
Population order CPU1 CPU2*
1 BK00 BK10
2 BK01 BK11
3 BK02 BK12
*CPU2 is available on the JXT6966 dual-processor board version only
The memory DIMMs on the SHB connect directly to the CPU and at least one memory module must be
installed on the board. The JXTS6966 SHB versions feature one processor; however, memory slots BK10,
BK11 and BK12 are installed on the SHB but are not active in this single-processor board version.
Universal Serial Bus (USB)
The SHB support eight high-speed USB 2.0 ports. Connectors for two of the USB ports (0 and 1) are on the
I/O bracket and USB ports 2 and 3 are available via headers on the SHB. USB ports 4, 5, 6 and 7 are
routed directly to edge connector C of the SHB for use on a PICMG 1.3 backplane.
Video Interface
The SHB features a Graphics Processing Unit (GPU) with 8MB of video memory, and the GPU is driven
by a x1 PCIe link from the SHB’s Intel® 3420 PCH. This combination of features enables the SHB’s
video port; located on the board’s I/O plate, to support pixel resolutions up to 1920 x 1200 (WUXGA) with
a 64k color depth.