Seemingly Fixed But Confused. Avionics power low: 4.90 volts

So, I was getting the Critical:Caution: Avionics power low: 4.90 volts.

From what I gathered here that this was likely due to a faulty/improper power module.
I measured across the pins on the existing power module.
These are the voltages measured across pins

I got a new power module…and this one doesnt give the low avionics power warning…
Is there something else going on thats not being measured through here.

They both have that one pin with 4.1 volts…but the one that doesnt throw the error message has a 5.0 rather than a 5.3…Is there something else going on in the powermodules that I should just stick with the one that doesnt throw the error…or should all four of those pins show 5-5.3?