Power Output And Cooling - HP xw9300 Service And Technical Reference Manual

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
3.3V
5V
12V CPU0
12V CPU1
12V-A
12V-B
12V-C
V12N
5VSB
Table 1-6 Power Supply and Cooling (Current)
Current
3.3V
5V
12V CPU0
12V CPU1
12V-A
12V-B
24 Product Overview
Minimum
3.17V
4.85V
11.52V
11.52V
11.52V
11.52V
11.52V
-11.4V
4.85V
Minimum Operating
0A 3.1A
0A 2.3A
0A 3.1A
0A 0A
0A 0A
0A 0A
Maximum
3.47V
5.25V
12.6V
12.6V
12.6V
12.6V
12.6V
-12.6V
5.25V
Continuous Maximum
25A 35.0A
23A 28.0A
12.6A 16.0A
12.6A 16.0A
15A 18.5A
3.8A 11.7A