Inline PSU Tester
– User’s Guide
Page 11
Device Operation
A failing power supply can often be at the root of problems you might not expect, like
random lockups, spontaneous reboots, and even some serious error messages. The
PassMark PSU Tester is designed to quickly test a PC power supply.
Configurations
The tester can be used in two different configurations. Standalone and Inline
configurations are explained below.
Standalone
In this configuration, the PSU Tester is only connected to a PSU (i.e. it is not
connected to a motherboard). This configuration is recommended for the production
line testing or when the PC doesn’t boot.
Figure 6
Inline
The PSU Tester is connected to a power supply and a motherboard. The inline mode
is more likely to reveal the root cause of more complicated issues such as random
lockups, spontaneous reboots and peripheral failure. Using Inline mode will also
result in the PSU being placed under much higher load. In addition to voltage and
timing measurement, the current drawn from each voltage rail is also measured in this
configuration.
Figure 7
The PSU Tester can be connected to a computer via a USB port. Using the monitoring
software, you can see all the voltages, currents and timings in one window and you