Specifications

Main Board QSSC-S4R Technical Product Specification
26
Table 2. Mainboard components
Item Component Type # Description
A CPU/socket 1 – 4
130W Intel® Xeon® 7500 series processor (Nehalem-EX) and
its next generation using Socket-LS (LGA 1567).
B IOH/heatsink 1 – 2 Intel® 7500 Chipset (Boxboro-EX IOH)
C
PCIe Expansion
Slots
1 – 2 PCIe Gen2x8, ¾ length, hot swap capable, x8 connector
3 – 4 PCIe Gen2x4, ½ length, non hot swap, x8 connector
5 PCIe Gen2x16, ¾ length, non hot swap, x16 connector
6 – 7 PCIe Gen2x8, ¾ length, hot swap capable, x8 connector
8 PCIe Gen2x4, ¾ length, non hot swap, x8 connector
9 – 10 PCIe Gen1x4, ½ length, non hot swap, x8 connector
*Note: A second processor must be installed in CPU socket 3 to support
PCIe slots 5-9
*Note: Legacy I/O devices i.e. video cards are only supported on slot #1,
2, 3, 4 or 10
D
Hot swap PCIe LED indicators and buttons
Attention button
LED Color/Behavior State
Attention LED Amber – Blinking Toggled by pressing the “Attention” button –
ready for hot-swap operation.
Power LED Green – Solid Power on.
Off Power off.
E System ID Button
Pressing this button turns the System ID LEDs on Solid. Pressing a button
again turns them off.
F System ID LED
Provides a visual indicator that the system is being serviced.
Color/LED Behavior Description
Off System ID inactive.
Blue – On System ID active via button
Blue - Blinking System ID active via remote command
G
System
Status/Fault
LED (green/amber)
Indicates system status
Color/LED
Behavior
State Description
Off Not
ready
AC power off, POST error
Green –
On
Ready System booted and ready
Green –
Blinking
Non-
critical
Alarm
x Non-critical temperature threshold asserted.
x Non-critical voltage threshold asserted.
x Non-critical fan threshold asserted.
x Fan redundancy lost, sufficient system
cooling maintained. (This does not apply to
non-redundant systems.)
x Power supply predictive failure.
x Power supply redundancy lost. (This does
not apply to non-redundant systems.)
x SMI LFO event
Amber –
Blinking
Non-
Fatal
Alarm
x CATERR asserted.
x Critical temperature threshold asserted.
x Critical voltage threshold asserted.
x Critical fan threshold asserted.
x VRD hot asserted.
x SMI Timeout asserted.
Amber –
On
Critical
alarm
x CPU Missing.
x Thermtrip asserted.
x Non-recoverable temperature threshold
asserted.
x Non-recoverable voltage threshold asserted.