Specifications

QSSC-S4R Technical Product Specification Main Board
27
H External
USB
Rear: 2x4-pin double stacked USB2.0 connector
I IO Riser Slot Designated slot for the IO Riser
J
SAS Riser Slot
PCIe Gen2x8, ½ length, non hot swap, x8 connector – designated for
SAS RAID HBA in Enterprise SKU
K Onboard SATA
6 29-pin SATA/SAS Drive Connectors, supporting SATA 2.5” hot
swappable hard disk drives (HDDs)
L Main Board Battery
3-volt lithium battery to provide power to the RTC when the Main Board is
powered down.
M
Internal USB
header x2
Support two internal USB2.0 Solid State Drive flash storage devices
docking to Main Board
N Peripherals TPM Header
O Front panel USB
connector
Connector for front panel USB ports
P
Memory Riser
Slots
1 – 8
Up to eight hot swap memory modules each with up to eight DDR3
RDIMMs
Q
FPFB Signal
Connectors
Signal connectors (x2) to the front panel fan board
R
PDB Signal
Connector
Signal connector to the power distribution board.
S PDB Power
Connectors
Power connectors
T BIOS Jumpers
x Password disable/clear
x Clear CMOS
x Mangement Engine (ME) force update
x BIOS recovery
U ICH 10R I/O Controller Hub
V
Main Board Handle
x2
Two handles on the main board for easier Installation and un-installation
from the chassis
W CPLD Chips Complex programmable logic device X 2
2.2 Functional Architecture
The QSSC-S4R system utilizes up to four 130W Intel® Xeon® 7500 series (Nehalem-EX) and its next generation
processors and up to 64 DDR3 DIMMs.
2.2.1 Intel® Xeon® 7500 Processors
Up to four Intel® Xeon® 7500 processors with bus speed of 6.4 GT/s, 5.86 GT/s and 4.8 GT/s. The Intel® Xeon® 7500
processors support the following features:
x Up to 8-cores and 16-Threads per CPU
x 24MB shared last level cache
x Intel® Turbo Boost Technology
x Four full-width, bi-directional Intel® QuickPath Interconnects (QPI) at 6.4 GT/s, 5.86 GT/s, or 4.8 GT/s.
x Integrated Memory Controller – supports DDR3-800 and 1066 via a memory buffer (Intel® 7500 Scalable Memory
Buffer)
x Socket-LS (LGA 1567)
The Intel® Xeon® 7500 processor supports up to eight-cores with up to 24-MB shared last level cache (LLC) and two
on-chip memory controllers. It is designed primarily for glue-less four or eight-socket multiprocessor systems, and
features four Intel QuickPath Interconnects and four Intel® SMI channels. The Boxboro-EX platform supports four fully-
connected Intel® Xeon® 7500 processor sockets, where each Intel® Xeon® 7500 processor uses three Intel
QuickPath Interconnects to connect to the other sockets and a fourth Intel® QPI can be connected to an IO Hub (IOH)
or an eXternal Node Controller (XNC) to expand beyond a four-socket configuration. The Intel® Xeon® 7500 processor
maintains cache coherence at the platform level by supporting the Intel QuickPath Interconnect source broadcast
snoopy protocol. Intel® Xeon® 7500 are designed to support Intel® QPIs at speeds of 4.8 and 6.4 GT/s and DDR3-