Post Port Debug Led And Led Status Indicators; Post Port Debug Led; Led Status Indicators; Jumper Settings - EVGA P55 FTW User Manual

Post Port Debug LED and LED Status
Indicators

Post Port Debug LED

Provides two-digit POST codes to show why the system may be failing to boot.
It is useful during troubleshooting situations. This Debug LED will also display
current CPU temperatures after the system has fully booted into the Operating
System.

LED Status Indicators

The LEDs near the 24pin ATX connector indicate the system's status.
POWER LED (Green):

When the System is powered on: This LED is on.
 DIMM LED (Orange):
When the Memory slot is functional: This LED is on.
 STANDBY LED (Blue):
When the System is in Standby Mode: This LED is on. This LED will
remain on as long as the motherboard is receiving constant power.

Jumper Settings

PCIE Disable Jumper

For the ease of troubleshooting Multiple Video Cards, or testing individual
Video Card's Overclocking, EVGA has implemented 3 Jumpers you can
use to disable individual PCIE slots. You don't need to remove any of your
video cards but simply disable the slot the particular card is in and the
Motherboard will treat it as invisible.
Debug LED with CPU
Temperature Monitor