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SUPERSERVER 6012L-6 User’s Manual
CR5 LED
CR5 is an onboard LED that serves
as a power indicator. See the
table on the right for the meaning
of each of the three colors dis-
played by CR5.
LED
Color
Green
Yellow
Red
Definition
Power On
Standby Mode
Wrong CPU
Onboard LED Power
Indicator (CR5)
LED
Color
Green
Yellow
Definition
Connected
Active
100 Mb LAN LED
Indicators (LAN1/LAN2)
5-9 Onboard Indicators
LAN1/LAN2 LEDs
Each of the Ethernet ports (located be-
side the VGA port) has a yellow and a
green LED. See the table on the right for
the functions associated with these
LEDs.
LED1/LED2 (Debug LEDs)
The two surface-mounted debug LEDs (LED1 and LED2) are each com-
posed of four individual LEDs, which are used to provide POST code infor-
mation. See the diagrams below for reading 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). The description below for reading the
LEDs is when viewed from the top/front side of the chassis.
LED1
1
4
8
1
4
8
22
LED2
Reading the Debug LEDs:
When 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 LED2 to
get the high digit and those in LED1 to
get the low 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:
LED2 (left digit): 8 + 4 = 12
(decimal 12 = hexidecimal C)
LED1 (right digit): 4 + 2 = 6
Decimal Hexidecimal Equivalent
0-9 0-9
10 A
11 B
12 C
13 D
14 E
15 F
= Unilluminated LED
Back of motherboard
LED1
1
4
8
1
4
8
22
LED2
= Illuminated LED (1)
Common POST Codes:
The following is a list of the most
common POST codes that you may see.
POST Code Meaning
01 Displayed while in
BIOS Setup
31 No video card
40 Displayed while
counting memory
83 Displayed when
memory count is
finished
85 CMOS Clear
95 Displayed while
detecting IDE
devices
DE No memory
DE Wrong type of
memory installed
DE One memory
module (two
minimum required)