Compaq 850 manual Watt Power Supply Assembly Specifications P/N, Range Min. Current Max Surge

Chapter 6 Power and Signal Distribution

6.2.1 POWER SUPPLY ASSEMBLY

The power supply assembly is contained in a single unit that features a selectable input voltage: 90-132 VAC and 180-264 VAC. Deskpro EN SFF systems use a 120-watt supply while all other systems employ a 265-watt supply. Table 6-1 list the specifications of the power supplies.

Table 6–1. 265-Watt Power Supply Assembly Specifications

Table 6-1.

265-Watt Power Supply Assembly Specifications (P/N 195196)

				Range/	Min. Current	Max.	Surge	Max.
				Tolerance	Loading [1]	Current	Current [2]	Ripple
	Input Line Voltage:
115			VAC Setting	90 - 132 VAC	--	--	--	--
230			VAC Setting	180-264 VAC	--	--	--	--
	Line Frequency			47 - 63 Hz	--	--	--	--
	Constant Input (AC) Current			--	--	4.0 A	--	--
	+3.3 VDC Output			+/- 5%	1.00 A	24.0 A	24.0 A	50 mV
	+5	VDC Output		+/- 5 %	1.00 A	11.0 A	11.0 A	50 mV
	+3	AUX Output		+/- 5 %	0.00 A	2.20 A	2.20 A	50 mV
	+5	AUX Output		+/- 4 %	0.0 A	1.70 A	1.70 A	50 mV
	+12 VDC Output			+/- 5 %	0.00 A	5.00 A	8.0 A	120 mV
	+12.8		VDC Output (Vcpu)	+/- 5 %	0.00 A	7.50 A	10.5 A	200 mv
	-12 VDC Output			+/- 10 %	0.00 A	0.15 A	0.15 A	200 mV

NOTES:

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

[2]Surge duration no longer than 10 seconds and +12 tolerance +/- 10%.

6-2Compaq Deskpro EXS and Workstation 300 Personal Computers

Featuring the Intel Pentium 4 Processor

First Edition - December 2000