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 1-5Power 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 1-6Power Supply and Cooling (Current)

Current

Minimum

Operating

Continuous

Maximum

 

 

 

 

 

3.3V

0A

3.1A

25A

35.0A

 

 

 

 

 

5V

0A

2.3A

23A

28.0A

 

 

 

 

 

12V CPU0

0A

3.1A

12.6A

16.0A

 

 

 

 

 

12V CPU1

0A

0A

12.6A

16.0A

 

 

 

 

 

12V-A

0A

0A

15A

18.5A

 

 

 

 

 

12V-B

0A

0A

3.8A

11.7A

 

 

 

 

 

24 Product Overview