One power supply post and I'll stop spamming the thread with info... First the "Functional Description", then the connector pinout...should be able to test from that. Here's the block diagram listed below...in case it is useful:
Publication Date: July 1995
Source Document: Compaq Presario 7100 Series Personal Computer
Maintenance and Technical Reference Guide
Document Number: 188914-001
The power supply provides four DC voltage levels for the computer system:
+5VDC, +12VDC, * 12VDC, and * 5VDC.
Power-On Sequence
At power-on, the +5VDC, * 5VDC, +12VDC, and * 12VDC outputs are monitored.
A fault detection occurs if any of the monitored output voltages do not
reach the minimum low-voltage limits within 1 second. The POWERGOOD signal
goes active (high) between 100 ms and 500 ms, after the system voltages
reach the minimum low-level voltage.
NOTE: Output loading determines the order and amount of time required for
the system voltages to reach their regulated voltage levels. Figure
9-1 shows a functional block diagram of the power supplies used in
the Compaq Presario 7100 Series Personal Computers.
ILLUSTRATION OF Figure 9-1. Power Supply Functional Block Diagram
Power-Down Sequence
The power-down sequence is dependent on the same variables as the power-on
sequence. The output load determines both the order in which the output
voltages drop out of regulation and the time remaining after the POWERGOOD
signal becomes inactive (low).
Fault-Detection Circuits
The fault detection circuit automatically shuts down the power supply
until all faults are removed and the AC power switch is turned off then
on. The minimum time period required to recycle the AC power and to return
to normal power supply operation is 10 seconds.
Power supply faults that trigger the protection circuitry include:
Thermal overload: The protection circuit triggers if the power supply
becomes too hot as a result of fan failure or a
restriction of the air flow.
Overvoltage: The +5VDC output activates the overvoltage crowbar circuit
that triggers the protection circuit when the output exceeds
+5.60VDC to +6.80VDC.
Short Circuit: The protection circuit triggers if any power supply output
is shorted to ground or to another output. This function
prevents any shock or fire hazard.
NOTE: The minimum loading requirements for the power supply must be met at
all times, to ensure normal operation and to meet specifications.
9.3 Connector
Publication Date: July 1995
Source Document: Compaq Presario 7100 Series Personal Computer
Maintenance and Technical Reference Guide
Document Number: 188914-001
Table 9-1 shows the voltage levels and signals found in the power supply
system board connector.
Table 9-1. Power Supply System Board Connector Signal Descriptions
===========================================================================
Pin Signal
===========================================================================
1 Power Good
2 +5VDC
3 +12VDC
4 * 12VDC
5 Ground
6 Ground
7 Ground
8 Ground
9 * 5VDC
10 +5VDC
11 +5VDC
12 +5VDC
===========================================================================