SUPER MICRO Computer SUPER X5DL8-GG user manual Onboard Indicators, GLAN1/GLAN2 LEDs, Debug LEDs

SUPER X5DL8-GG/X5DLR-8G2+/X5DLR-8G2 User’s Manual

2-6 Onboard Indicators

GLAN1/GLAN2 LEDs

Each of the Ethernet ports (located beside the VGA port) has a yellow and a green LED. See the tables below for the functions associated with these LEDs. On each Gb LAN port, the yellow LED indicates activity while the other LED may be green, orange or off to indicate the speed of the connec- tion (as specified in the tables below).

Gb LAN Left LED

Indicator

LED
Color	Definition
Off	Not Active
Yellow	Active

Gb LAN Right LED

Indicator

LED
Color	Definition
Off	No Connection
Green	100 MHz
Orange	1 GHz

Debug LEDs

Two sets of surface-mounted debug LEDs are located beside the LAN2 port and are each composed of four individual LEDs (D1 through D8) , which are used to provide POST code information. See the diagrams below for read- ing the debug LEDs and refer to Appendix B for a complete list of POST codes (a partial listing of the most common codes are given below).

Back of motherboard

8 8

4 4

2 2

1 1

D5-D8 D1-D4

8 8

4 4

2 2

1 1

Reading the Debug LEDs:

W hen on, each of the eight separate LEDs represent the value of the number shown beside it in the diagram. Add up the numerical values of each illuminated LED in the D5-D8 row to get the high digit (left) and those in the D1-D4 row to get the low (right) digit of the corresponding hexidecimal POST code.

Example:

The example on the left indicates a hexidecimal POST code of C6. This is determined in the following manner:

D1-D4 (right digit): 4 + 2 = 6

D5-D8 (left digit): 8 + 4 = 12 (decimal 12 = hexidecimal C)

Common POST Codes:

The following is a list of the most common POST codes that you may see.

POST Code Meaning

01Displayed while in BIOS Setup

31	No video card
40	Displayedwhile
	counting memory

83Displayed when memory count is finished

85 CMOS Clear

95Displayedwhile detecting IDE devices

DE No memory

D5-D8 D1-D4	Decimal	Hexidecimal Equivalent
= Unilluminated LED	0-9	0-9
	10	A
= Illuminated LED (1)	11	B
	12	C

13D

14E

15F

DE	W rong type of
	memory installed
DE	One memory
	module (two
	minimum required)

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