Power and Signal Distribution

7.2.3 CMT Power Distribution

The CMT form factor uses a power supply unit internal to the system chassis. Figure 7-4 shows the block diagram for power generation in the CMT.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Front Bezel

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

System Board

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Power Button

Power On

90 - 264 VAC

NOTE:

CPU, slots, Chipsets, Logic, & Voltage Regulators

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

+3.3 VDC

5 AUX

+5 VDC

+12 VDC

+12 VccP

-12 VDC

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

+3.3 VDC

 

 

 

PS On

Fan

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

+5 VDC

 

 

 

Spd [1]

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

+12 VDC

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Power Supply

Unit

Drives

[1] Not present on CMT.

Figure 7-4. CMT Power Generation, Block Diagram

Table 7-3 lists the specifications for the 365-watt power supply used in the CMT form factor.

Table 7-3.

CMT 365-Watt Power Supply Unit Specifications

 

 

 

 

 

 

 

Range or

Min.

 

 

 

 

Current

Max.

Surge

Max.

 

Tolerance

Loading [1]

Current

Current [2]

Ripple

 

 

 

 

 

 

Input Line Voltage:

 

 

 

 

 

115–230 VAC (auto-ranging)

90–264 VAC

--

--

--

--

 

 

 

 

 

 

Line Frequency

47–63 Hz

--

--

--

--

Input (AC) Current

--

--

6.0 A

--

--

+3.3 VDC Output

+ 4 %

0.10 A

24.0 A

24.0 A

50 mV

+5.08 VDC Output

+ 3.3 %

0.30 A

19.0 A

19.0 A

50 mV

+5.08 AUX Output

+ 3.3 %

0.00 A

3.00 A

3.00 A

50 mV

+12 VDC Output

+ 5 %

0.20 A

12.0 A

14.5 A

120 mV

+12 VDC Output (Vcpu)

+ 5 %

0.00 A

14.5 A

17.5 A

200 mv

-12 VDC Output

+ 10 %

0.00 A

0.15 A

0.15 A

200 mV

NOTES:

Total continuous output power should not exceed 365 watts. Maximum surge power should not exceed 385 watts.. Maximum combined power of +5 and +3.3 VDC is 160 watts.

[1]Minimum loading requirements must be met at all times to ensure normal operation and specification compliance.

[2]Maximum surge duration for +12Vcpu is 1 second with 12-volt tolerance +/- 10%.

 

7-4

www.hp.com

Technical Reference Guide

Page 84
Image 84
HP dc7800 manual CMT Power Distribution, CMT 365-Watt Power Supply Unit Specifications