Power Supply Assembly - Compaq W4000 Technical Reference Manual

Chapter 6 Power and Signal Distribution

6.2.1 POWER SUPPLY ASSEMBLY

These systems feature auto-ranging power supplies with power factor-correction logic. The SFF
systems use a 175-watt supply while the desktop and configurable minitower systems employ a
250-watt supply. Tables 6-1 and 6-2 list the specifications of the power supplies.
Table 6–1. 175-Watt Power Supply Assembly Specifications
175-Watt Power Supply Assembly Specifications (PN 243891)
Input Line Voltage:
115 - 230 VAC (auto-ranging)
Line Frequency
Constant Input (AC) Current
+3.33 VDC Output
+5 VDC Output
+3.30 AUX Output
+5.05 AUX Output
+12 VDC Output
+12.8 VDC Output (Vcpu)
-12 VDC Output
N OTES:
[1] Minimum loading requirements
and specification compliance.
[2] Surge duration no longer than 10 seconds with 12-volt tolerance +/- 10%.
Table 6–2. 250-Watt Power Supply Assembly Specifications
250-Watt Power Supply Assembly Specifications (PN 243890)
Input Line Voltage:
115 - 230 VAC Setting
Line Frequency
Constant Input (AC) Current
+3.3 VDC Output
+5 VDC Output
+3 AUX Output
+5 AUX Output
+12 VDC Output
+12.8 VDC Output (Vcpu)
-12 VDC Output
NOTES:
[1] Minimum loading requirements
and specification compliance.
[2] Surge duration no longer than 10 seconds with 12-volt tolerance +/- 10%.
6-2 Compaq Evo and Workstation Personal Computers
Featuring the Intel Pentium 4 Processor
Table 6-1.
Range/ Min. Current
Tolerance Loading [1]
90 - 264 VAC --
47 - 63 Hz --
-- --
+/- 6 % 0.6 A
+/- 5 % 0.5 A
+/- 5 % 1.0 A
+/- 4 % 0.1 A
+/- 3 % 0.0 A
+/- 12 % 0.1 A
+/- 10 % 0.0 A
must be met at all times to ensure normal operation
Table 6-2.
Range/ Min. Current
Tolerance Loading [1]
90 - 264 VAC --
47 - 63 Hz --
-- --
+/- 5% 1.0 A
+/- 5 % 1.0 A
+/- 5 % 0.0 A
+/- 4 % 0.0 A
+/- 5 % 0.1 A
+/- 5 % 0.0 A
+/- 10 % 0.0 A
must be met at all times to ensure normal operation
Second Edition- January 2003
Max. Surge
Current Current [2]
-- --
-- --
2.7 A --
12.0 A --
8.0 A --
1.0 A --
2.4 A --
3.0 A 4.5 A
7.5 A --
0.3 A --
Max. Surge
Current [2]
Current
-- --
-- --
3.6 A --
17.0 A 17.0 A
11.0 A 11.0 A
2.20 A 2.20 A
1.70 A 1.70 A
5.00 A 7.50 A
7.50 A 10.5 A
0.15 A 0.15 A
Max.
Ripple
--
--
--
50 mV
50 mV
50 mV
50 mV
120 mV
120 mv
200 mV
Max.
Ripple
--
--
--
50 mV
50 mV
50 mV
50 mV
120 mV
200 mv
200 mV