Figure 26. Location Of Diagnostic Leds On Server Board; Table 41. Post Progress Code Led Example - Intel S3000PT - Server Board Motherboard Specification

Product specification

Hide thumbs Also See for S3000PT - Server Board Motherboard:

Quick start user manual (2 pages)

Configuration manual (5 pages)

Table Of Contents

Table of Contents

Error Reporting and Handling

Each POST code is represented by a combination of colors from the four LEDs. The LEDs are

capable of displaying three colors: green, red, and amber. The POST codes are divided into an

upper nibble and a lower nibble. Each bit in the upper nibble is represented by a red LED and

each bit in the lower nibble is represented by a green LED. If both bits are set in the upper and

lower nibbles then both red and green LEDs are lit, resulting in an amber color. If both bits are

clear, then the LED is off.

In the below example, the BIOS sends a value of ACh to the diagnostic LED decoder. The

LEDs are decoded as follows:

Red bits = 1010b = Ah

Green bits = 1100b = Ch

Since the red bits correspond to the upper nibble and the green bits correspond to the lower

nibble, the two are concatenated to be ACh.

LEDs

Red

ACh

Result

Amber

MSB