Specifications

Main Board QSSC-S4R Technical Product Specification

x Four independent processor buses

x Fully connected sockets (with 4 Intel® QuickPath interconnects per socket)

x Several PCIe I/O subsystems

x CPU-integrated memory controller

x Registered DDR3 800/1066 MHz via on-board memory buffer (Intel® 7500 Scalable Memory Buffer)

x RAS feature support:

x CPU Sparing / Migration

x Physical CPU hot add and remove

x OS CPU on-lining (capacity change)

x On-die error correction

x Memory Demand and Patrol scrubbing

x DIMM and Rank Sparing

x Memory board hot add

x Mirrored Memory Board Hot Add / Remove

x Intra– and Inter–socket Memory Mirroring

x PCIe hot plug

x Intel® ICH10R provides support for PCIe, LPC, integrated Gbit MAC, SMBus 2.0/SMLINK, USB 2.0, Intel® Matrix

Storage, and Serial-ATA (SATA)

x Eight Memory riser boards, supporting eight DDR3 registered DIMMs per riser

x PCIe I/O slots including the support circuits for:

x Four hot-swap PCIe Gen-2 x8 slots (Slot 1 - 2 & Slot 6 - 7)

x Three PCIe Gen-2 x4 slots (Slot 3 - 4 & 8)

x One PCIe Gen-2 x16 slot (Slot 5)

x Two PCIe Gen-1 x4 slots (Slot 9 - 10)

x One designated PCIe Gen-2 x8 slot for SAS riser board

x High Speed Clocks and Differential Buffers:

x CK410B Clock generator/synthesizer

x DB1200 Host/CPU/IOH/MEM clock buffer

x DB1200 PCIe serial reference clock buffer for slot 1 – 4; and DB800 PCIe serial reference clock buffer for slot

5 – 10

x CKMNG BMC+NIC clock buffer

x I/O Riser hosting optional RMM3 2/GCM3 advanced server management module, and two Intel® 82576 PCIe

based, dual-GbE LAN controllers (Kawela)

x SAS Riser hosting LSI SAS2108 (Liberator) ROC (RAID-On-a-Chip) Controller, at 800MHz

x Power Distribution Board (PDB) for system power delivery from power supplies

x Front Panel Fan Board (FPFB) supporting front panel USB, video as well as the Operator Panel (OP Panel) that

contains control buttons and LEDs

x Support TPM (Trusted Platform Module)

x SPI BIOS Flash components

x Super I/O* (Embedded in iBMC chip)

The main board also contains many voltage regulators used by its components, as well as many of the primary rails

used by the rest of the board set. The following sections describe the main board in detail.