1.8V supply low

What does 48 mean?

The 1.8V DC supply on the control card, crucial for its internal logic, has dropped below its allowable limits. This low voltage indicates a potential fault on the control card itself or an overload caused by an option card, leading to unstable operation or complete control card failure.

Complete Troubleshooting Guide

1. 1

   Check for a defective control card that may be failing to regulate its internal 1.8V supply.

2. 2

   If an option card is present, check for overvoltage or excessive current draw from the option card, which might be loading down the 1.8V supply.

3. 3

   Try removing the option card temporarily to see if the warning clears.