Product guide

QSSC-S4R Server System Product Guide Chapter 1: System Description
Version 1.0
23
Jumper Name Location Default Stuffed Jumper State
Password
disable/clear
J5C3 Stuff 1 - 2 = Password protect
Empty 2 - 3 = Password disabled / cleared
Clear CMOS J5C2 Stuff 1 - 2 = Normal
Empty 2 - 3 = Forced CMOS clear
Management Engine
(ME) force update
J5C1 Stuff 1 - 2 = Disable ME force update
Empty 2 - 3 = Enable ME force update
BIOS Recovery J6D1 Stuff 1 - 2 = Disable BIOS Recovery
Empty 2 - 3 = Enable BIOS Recovery
Figure 18. Main Board Jumper Settings
SATA Device Support
SATA device support is provided via six SATA connectors located on the Mainboard. These connectors are
wired directly to the hot swap backplane in the Value SKU; SATA 0 is connected to the slimline optical drive in
the Enterprise SKU.
Memory Riser
The QSSC-S4R Server System supports up to eight memory riser modules that plug into the main board
vertically via PCIe X24 card edge connectors. Each memory riser has the following features:
 Support for up to eight DDR3 registered DIMMs
 Two Intel® 7500 Scalable Memory Buffers, each supporting two DDR3 buses; each DDR3 bus supporting
two DDR3 DIMMs
 The Intel® 7500 Scalable Memory Buffer supports the following features:
 Intel® SMI (Intel Scalable Memory Interconnect) protocol and signaling
 4.8 Gbs, 6.4 Gbs signaling forwarded clock fail-over NB and SB
 Support for integrating RDIMM thermal sensor information into Intel SMI status Frame
 No support for FB-DIMM1 protocol and signaling
 Hot swappable at the memory riser level but not supported on individual DIMM level for hot swap
 Supports DDR3-1066 RDIMMs at speeds of 800, 978 and 1066MHz.
 Supports DDR3-1333 RDIMMs running at 1066, 978 and 800MHz.
 All channels in a system will run at the fastest common frequency
 Supports DDR3 registered DIMM configurations of up to x8 dual-rank (DR) and x4 quad-rank (QR) DDR3
SDRAM
 Supports DDR3 DRAM technologies of 1Gbit and 2Gbit
 Supports 1GB, 2GB, 4GB, 8GB & 16GB (16GB with QRx4 DIMMs only) DIMM capacity. 16 GB QR DIMMs
can only occupy half of the available slots in a memory riser; otherwise the system may exceed thermal
specifications.
 Mixed memory DIMM is not supported. Mixed DIMM includes a mix of RDIMM and UDIMM, mixed DIMM
sizes and mixed DIMM technologies.
 Cmd/Addr parity generation and error logging.
 Supports CLTT (Closed Loop Thermal Throttling) via temperature sensors on registered DIMMs.