HP Z230 Maintenance And Service Manual page 100

Problem
90 Chapter 4 Diagnostics and troubleshooting
Cause Solution
d. Continue adding devices one at a time to verify
that all devices are functioning.
2. Verify power supply functionality (Tower only).
a. Disconnect AC power.
b. Unplug all system board power cables.
c. Plug in AC power.
If the PSU fan spins and the LED is
●
illuminated (see
on page 89), the power supply is good.
Replace the system board.
If the PSU fan does not spin or the LED
●
does not illuminate (see
supply on page
supply.
Testing power supply
Testing power
89), replace the power