



 
 
Overheat (OH)/Fan Fail/PWR Fail/UID LED
Connect an LED cable to pins 7 and 8 of JF1 to use the Overheat/Fan Fail/Power Fail and UID LED connections. The Red LED on pin 8 pro- vides warnings of an overheat, fan failure or power failure. The Blue LED on pin 7 works as the UID LED indicator for the front panel UID switch located on pins 13~14 of JF1. When Jumper J_UID_OW is set to off (default), the Red LED takes precedence over the Blue LED. (See Page 
Power Fail LED
The Power Fail LED connection is located on pins 5 and 6 of JF1. Refer to the table on the right for pin definitions.
| 
 | 
 | 
 | VGA | COM1 | 
 | 
 | 
 | 
 | 
| 
 | LE4 | 
 | 
 | 
 | LAN2 | LAN1 | USB0/1 | 
 | 
| SBX1A | W1S | JUIDOWJNMI1 | LE2 | IPMB | 
 | 
 | 
 | SBX2A | 
| WD1JJSPK1 | 
 | 
 | 
 | |||||
| J11 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | J12 | 
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | IPMI_LAN | 
 | 
| 
 | 
 | 
 | 
 | Winbond | JLPC80 | 
 | PHY | 
 | 
| 
 | 
 | 
 | 
 | 
 | Intel | 
 | ||
| 
 | 
 | JPCIE3 | 
 | 450R | JPG1 JPL1 | 
 | 
 | |
| 
 | 
 | 
 | BMC | 82576 | 
 | + | ||
| 
 | 
 | 
 | 
 | 
 | 
 | LAN CTRL | 
 | 
 | 
OH/Fan Fail/ PWR Fail/Blue_UID
LED Pin Definitions (JF1)
Pin# Definition
7
8OH/Fan Fail/PWR Fail/UID LED (Red)
OH/Fan Fail/PWR Fail
LED Status (Red LED)
State Definition
| Off | Normal | |
| On | Overheat | |
| Flashing | Fan Fail | |
| 
 | 
 | 
PWR Fail LED
Pin Definitions (JF1)
Pin# Definition
53.3V
6PWR Fail LED
A.OH/Fan Fail/PWR Fail/
UID LED
B.PWR Supply Fail
| 
 | CMOS | |
| .0 | 
 | CLEAR | 
| x4 in | 
 | |
| Intel | 
 | |
| x16 | ICH10R | BIOS | 
| Slot | (South Bridge) | Intel | 
| 
 | 5520 | |
| 
 | 
 | 
| 20 | 19 | 
| 
 | JPCIE1 | |
| SBX 1B | USB2/3 | |
| 
 | 
 | |
| 
 | 
 | |
| 
 | 
 | |
| 
 | 
 | |
| FAN8 | 
 | 
 | 



 X8DTG-DF
X8DTG-DF














 X8DTG-DF
X8DTG-DF











| 
 | P2 | P2 | P2 | P2 | P2 | P2 | 
| CPU2 | DIMM1B | DIMM1A | DIMM2B | DIMM2A | DIMM3B | DIMM3A | 
| 
 | 
 | Ground | No Connection | 
| 
 | JPCIE2 | Key | Key | 
| 
 | 
 | ||
| SBX 2B | 
 | Power LED | 3.3V | 
| 
 | 
 | 
| HDD LED | FP UID Switch/3.3V SB | 
| NIC1(Link) LED | NIC1 (Activity) LED | 
FAN7
JBAT1
Battery
| 
 | NIC2 (Link) LED | 
| FAN6 FAN5 | OH/Fan Fail/PWR | 
| A Fail/UID LED | 
NIC2 (Activity) LED
Blue_LED_Cathode (UID)/5V SB
| 
 | P1DIMM3A | P1DIMM3B | P1DIMM2A | P1DIMM2B | P1DIMM1A | CPU1 | 
| JPW1 | P1DIMM1B | 
| FAN4 | FAN3 | 
| JPI2C (PWR I2C) | 
 | 
| Front Panel | B PWR Fail LED | 
| CTRL | |
| LE1 | 
 | 
| JPW2 | Ground | 
| 
 | |
| JPW3 | 
 | 
| FAN1 | Ground | 
| FAN2 | 4 | 
| JL1 | 1 | 
| 
 | 
2 1
3.3V
Reset Reset Button
PWR Power Button
