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7-4 www.hp.com Technical Reference Guide
Power and Signal Distribution
Table 7-1 lists the specifications of the 240-watt power supply used in the SFF unit.
NOTES:
Total continuous power should not exceed 240 watts. Total surge power (<10 seconds w/duty cycle < 5 %) should not exceed
265 watts.
[1] The minimum current loading figures apply to a PS On start up only.
[2] Maximum surge duration for +12Vcpu is 1 second with 12-volt tolerance +/- 10%.
Table 7-2 lists the specifications for the 320-watt power supply used in the MT and CMT form
factors.
NOTES:
Total continuous output power should not exceed 320 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%.
Table 7-2.
SFF 240-Watt Power Supply Unit Specifications
AC Range or
DC Regulation
Min.
Current
Loading [1]
Max.
Current
Surge
Current [2]
Max.
Ripple
Input voltage:
115 VAC
230 VAC
90–140 VAC
180–264 VAC
-- -- -- --
Line Frequency 47–63 Hz -- -- -- --
Input (AC) Current Requirement
(100 VAC rms @ 60 Hz)
-- -- 4 A rms -- --
Output voltage (VDC):
+12 Vmain
+12 Vcpu
+12 Vsb (aux)
–12 V
11.62 to 12.57
11.62 to 12.57
11.06 to 11.74
–10.8 to –13.2
0.5 A
1 A
0.1 A
0 A
16 A
16 A
1.3 A
0.15 A
18 A
18 A
1.5 A
0.5 A
120 mV
120 mV
120 mV
120 mV
Table 7-3.
MT/CMT 320-Watt Power Supply Unit Specifications
AC Range or
DC Regulation
Min.
Current
Loading [1]
Max.
Current
Surge
Current [2]
Max.
Ripple
Input voltage:
115 VAC
230 VAC
90–140 VAC
180–264 VAC
-- -- -- --
Line Frequency 47–63 Hz -- -- -- --
Input (AC) Current Requirement
(100 VAC rms @ 60 Hz)
-- -- 5.5 A rms -- --
Output voltage (VDC):
+12 Vmain
+12 Vcpu
+12 Vsb (aux)
–12 V
11.62 to 12.57
11.62 to 12.57
11.06 to 11.74
–10.8 to –13.2
0.5 A
1 A
0.1 A
0 A
16 A
16 A
1.3 A
0.15 A
18 A
18 A
1.5 A
0.5 A
120 mV
120 mV
120 mV
120 mV