EPOX EP-4PEA, User Manual, Page: 36 / 100

Installation
Page 3-16
3-7 AGP Card 1.5V Protection
The board supports 1.5 volt AGP graphics cards only. Using a 3.3 volt AGP card
in this board might damage the chipset. However, this mainboard features a
protection function that prevents the system from powering on when a 3.3V
AGP card is inadvertently inserted into the AGP slot.
If this happens, we recommend you to follow these steps:
Step 1: Remove the 3.3V AGP card from the AGP slot.
Step 2: Unplug the ATX/ATX12V power cable.
Step 3: Insert a 1.5V AGP card into the AGP slot.
Step 4: Wait for 5 ~ 7 seconds and then plug in the ATX/ATX12V power
cord again (or turn on the ATX/ATX12V power switch) to turn on
your system.
Note : There should be an interval of 5 ~ 7 seconds between unplugging
and plugging in the power cord, or turning the ATX/ATX12V
power supply on and off.