HP Xw9400 - Workstation - 16 GB RAM - Power Supply and Cooling

Power supply and cooling
This section describes power supply specifications.
Table 1-5 Power supply source voltages
Source voltage Description
+3.3V PCI, PCIe, onboard logic, SAS controller, IEEE 1394, and
chipset
+5V Storage (disk, optical, diskette), PCI, audio, USB, input to
onboard regulator, and onboard logic
+12 V-CPU0 Input to onboard regulator that supplies power to CPU0 and
CPU0 fan
+12 V-CPU1 Input to onboard regulator that supplies power to CPU1,
CPU1 fan, and chipset regulators
+12 V-M Input to onboard regulator that supplies power to memory
+12 V-B PCI, PCIe, and system fans
+12 V-D Storage (hard drive, optical drive, diskette drive)
+12 V/G1 PCI Express auxiliary connector
+12 V-G2 Second PCI Express auxiliary connector
+12 V-R Not used
+12 V-N PCI and serial ports
+5 V-SB Sleep circuitry
Table 1-6 Maximum current per rail
Voltage rail 1050W maximum
continuous current
+3.3V 22.0A
+5V 18.0A
+12 V-CPU0 18.0A
+12 V-CPU1 18.0A
+12 V-M 18.0A
+12 V-B 18.0A
+12 V-D 18.0A
+12 V/G1 18.0A
+12 V-G2 18.0A
+12 V-R 18.0A
+12 V-N 0.30A
+5 V-SB 9.0A
6 Chapter 1 Product overview ENWW