Post Error Pause" Option; Checkpoints; System Rom Bios Post Task Test Point (Port 80H Code); Diagnostic Leds - Intel SE7525GP2 Technical Manual

Intel® Server Boards SE7320SP2 and SE7525GP2
Number of Beeps
1, 2 or 3 Reseat the memory, or replace with known good modules.
4-7, 9-11 Fatal error indicating a serious problem with the system. Consult your system manufacturer.
Before declaring the server board beyond all hope, eliminate the possibility of interference
by a malfunctioning add-in card. Remove all expansion cards except the video adapter.
- If beep codes are generated even when all other expansion cards are absent, consult your
system manufacturer's technical support.
- If beep codes are not generated when all other expansion cards are absent, one of the
add-in cards is causing the malfunction. Insert the cards back into the system one at a time
until the problem happens again. This will reveal the malfunctioning add-in card.
8 If the system video adapter is an add-in card, replace or reseat the video adapter. If the
video adapter is an integrated part of the system board, the board may be faulty.
6.2.4

"POST Error Pause" Option

In case of POST error(s) that occur during system boot-up, the BIOS will stop and wait for the
user to press an appropriate key before booting the operating system or entering BIOS setup.
The user can override this option by setting "POST Error Pause" to "disabled" in the BIOS setup
Advanced menu page. If the "POST Error Pause" option is set to "disabled", the system will
boot the operating system without user intervention. The default value setting for this option is
"enabled".
6.3

Checkpoints

6.3.1

System ROM BIOS POST Task Test Point (Port 80h Code)

The BIOS sends a 1-byte hex code to port 80 before each task. The port 80 codes provide a
troubleshooting method in the event of a system hang during POST. Table 65 provides a list of
the Port 80 codes and the corresponding task description.
6.3.2

Diagnostic LEDs

All port 80 codes are displayed using the diagnostic LEDs found on the back edge of the server
board. The diagnostic LED feature consists of a hardware decoder and four dual color LEDs.
During POST, the LEDs will display all normal POST codes representing the progress of the
BIOS POST. Each code will be 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 two nibbles, 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, 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
Revision 4.0
Error Reporting and Handling
Troubleshooting Action
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