HP xw8600 - Workstation - Page 18

Source voltage Description
+12 V-G/G1 PCI Express auxillary connector on 800W and 1050w power supplies
+12 V-G2 Second PCI Express auxilliary connector on 1050W power supply
+12 V-R Input to onboard regulator that supplies power to Riser Memory (1050W
power supply only)
+12 V-N PCI and serial ports
+5 V-SB Sleep circuitry
Table 1-5 Maximum current per rail
Voltage rail 800W maximum
continuous current
1050W maximum
continuous current
+3.3V 22.0A 22.0A
+5V 18.0A 18.0A
+12 V-CPU0 18.0A 18.0A
+12 V-CPU1 18.0A 18.0A
+V12 V-M 18.6A 18.0A
+12 V-B 18.0A 18.0A
+12 V-D 18.0A 18.0A
+12 V-G/G1 18.0A 18.0A
+12 V-G2 N/A 18.0A
+12 V-R N/A 18.0A
+12 V-N 0.30A 0.30A
+5 V-SB 3.0A 9.0A
CAUTION: For 800W and 1050W power supplies, do not exceed 150 watts of 3.3V and 5V power
combination.
For the 800W power supply, do not exceed 64.0 amps (768 watts) of 12-volt (CPU0/CPU1/M/B/D/G)
power combination.
For the 1050W power supply, do not exceed 84.0 amps (1008W) of 12V (CPU0/CPU1/M/B/D/G1/G2/
R) power combination.
Do not exceed 800 watts (for the 800W power supply) or 1050 watts (for 1050W power supply) of total
continuous output power.
Power supply specifications
Table 1-6 Power supply specifications
Item Description
Power supply 800W
Wide Ranging, Active PFC
1050W
Wide Ranging, Active PFC
Table 1-4 Power supply source voltages (continued)
8 Chapter 1 Product overview ENWW