HP Xw9400 HP xw9400 Workstation - Service and Technical Reference Guide - Page 16

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