Document

Integration Guide for New Dual-Core Intel
®
Xeon
®
Processor-Based Servers (or Workstations) Rev 1.1
15
The following table provides recommendations for the power and current ratings for different form
factors:
Current Rating (A)
Spec
Power
(W)
+3.3V +5V 12V1 12V2 12V3 12V4 -12V +5VSB
EPS1U 600 10 21 16 16 16 16 0.5 3
EPS2U 700 24 30 16 16 16 16 0.5 3
ERP2U 750 24 30 16 16 16 16 0.5 3
EPS12V 650 24 30 16 16 16 16 0.5 3
ERP12V 700 24 30 16 16 16 16 0.5 3
Table 3.4.4 SSI recommended power levels and current rating
3.5.3 Power supply connectors
Normally, the power supply distribution board shall have the following output connectors and wire
harness configuration:
Connectors Pins No.
Base board power connector 24
Processor power connector 8
+12V4 base board power connector, required
for 700W, 750W and 800W power levels
4
Fan power with fan speed control 4
Peripheral power connectors 4
Floppy power connectors 4
Serial ATA power connectors 5
Server signal connectors 5
Table 3.4.5 SSI recommended power supply connectors
Integrators must ensure these power connectors provide the proper output and that they are connected
properly. Different colors have been used to mark different power output voltages. One power connector
may have several colors in one stripe along the colored wire
3.3VDC 3.3VRS +5VDC +12V1 +12V2 +12V3 +12V4 -12V 5VSB PS_ON
Orange
Yellow Yellow Yellow
Orange
White
Red
Black
Yellow
Blue Green
Blue Purple Green
Table 3.4.6 SSI recommended power supply triples color
3.5.4 Hot swap and redundant power supplies