HP Xw9300 HP xw9300 Service and Technical Reference Guide - Page 24

Power Output and Cooling The HP xw9300 Workstation power supply contains 9 outputs: • +3.3V-used with PCI, PCI-X, PCI-E, NVIDIA nForce Professional 2000 series MCPs, AMD8131, LS1030, IEEE 1394, Audio, Super I/O, on-board logic • +5V-used with storage (disk, optical, diskette), PCI, PCI-X, PCI-E, IEEE 1394, NVIDIA nForce Professional 2000 series MCPs, USB, input to on-board regulators (1.2V, 1.5V, 1.8V, and 2.5V), SCSI hard drives, and on-board logic • +12V-A-used with PCI, PCI-X, PCI-E, IEEE 1394, system fans • +12V-B-used with storage (disk, optical, floppy) • +12V-C-used with PCI Express x16 auxiliary connectors • +12VCPU0-input to onboard regulator that supplies power for CPU0, Mem0, and respective fan • +12VCPU1-input to onboard regulator that supplies power for CPU1, Mem1, and respective fan • -12V-used by PCI, PCI-X • 5VSB-used for sleep circuitry Table 1-5 Power Supply and Cooling (Voltage) Voltage Minimum Maximum 3.3V 3.17V 3.47V 5V 4.85V 5.25V 12V CPU0 11.52V 12.6V 12V CPU1 11.52V 12.6V 12V-A 11.52V 12.6V 12V-B 11.52V 12.6V 12V-C 11.52V 12.6V V12N -11.4V -12.6V 5VSB 4.85V 5.25V Table 1-6 Power Supply and Cooling (Current) Current Minimum Operating 3.3V 0A 3.1A 5V 0A 2.3A 12V CPU0 0A 3.1A 12V CPU1 0A 0A 12V-A 0A 0A 12V-B 0A 0A Continuous 25A 23A 12.6A 12.6A 15A 3.8A Maximum 35.0A 28.0A 16.0A 16.0A 18.5A 11.7A 24 Product Overview