
Chapter 2: Installation
Overheat LED/Fan Fail (JOH1)
The JOH1 header is used to connect an LED to provide warning of chassis overheating. This LED will blink to in- dicate a fan failure. Refer to the table on right for pin definitions.
Chassis Intrusion
A Chassis Intrusion header is located at JL1 on the motherboard. Attach an appropriate cable from the chassis to inform you of a chassis intrusion when it is opened.
Overheat LED
Pin Definitions
Pin# Definition
15vDC
2OH Active
OH/Fan Fail LED
Status
| State | 
 | Message | 
| Solid | 
 | Overheat | 
| 
 | ||
| Blinking | 
 | Fan Fail | 
| 
 | ||
| 
 | 
 | 
 | 
Chassis Intrusion
Pin Definitions (JL1)
Pin# Definition
1Intrusion Input
2Ground
| KB/MOUSE JPW2 | CPU Fan | 
| 
 | Fan1 | 
VGA
SMBUS_PS1

A. Overheat LED B. Chassis Intrusion
| HDMI | 
 | 
| SPDIF Out | USB2/3/4/5 | 
| LAN1 | USB/0/1 | 
| HD AUDIO | |
CPU
| JPUSB1 | Fan5 | 
| G45 (C2SEA) | |
| 
 | Intel | 
| 
 | G43 (C2SEE) | 
| 
 | Slot7  | 
| DIMM1A | DIMM1B | 
| DIMM1 | DIMM2 | 
| DIMM2A | DIMM2B | 
| DIMM3 | DIMM4 | 
JPW1
| JPL1 | C2SEA/C2SEE | 
| 
 | 
 | Slot6  | |
| Lan | 
 | 
 | 
 | 
| CTRL | 
 | Slot5 PCI 33MHZ | 
 | 
| 
 | 
 | 
 | |
| FP Audio | 
 | Slot4  | |
| JI2C1 | JI2C2 | Slot3 PCI 33MHz | 
 | 
| S I/O | CD1 | Slot2 PCI 33MHz | 
 | 
| 
 | 
 | ||
| 
 | 
 | 
 | |
| 
 | 
 | JPAC | JWOL1 | 
| 
 | 
 | Slot1 PCI 33MHz | 
 | 
| Printer | 
 | JWOR | Floopy | 
| 
 | 
 | COM1 | 
 | 
| SPI BIOS | 
 | 
 | 
 | Fan2 | 
 | 
| 
 | 
 | 
 | Fan3 | 
 | |
| JBT1 | 
 | 
 | 
 | 
 | |
| CMOS CLEAR | Intel | 
 | 
 | LE1 | 
 | 
| 
 | ICH10 | 
 | 
 | JLED1 | 
 | 
| 
 | 
 | 
 | JF1 | 
 | |
| Battery | 
 | 
 | 
 | A | |
| 
 | 
 | 
 | 
 | ||
| 
 | 
 | JWD1 | JOH1 | ||
| 
 | 
 | 
 | 
 | ||
| 
 | 
 | 
 | |||
| 
 | 
 | 
 | 
 | ||
| 
 | 
 | 
 | 
 | 
 | |
| JD1 | 
 | 
 | 
 | ||
| 
 | USB 10/11 | 
 | 
 | ||
| SPKR1 JPD1 | 
 | 
 | 
 | ||
| 
 | 
 | 
 | 
 | 
 | |
| JPI1 | IDE | USB 8/9 | JPUSB2 | 
 | |
| 
 | CTRL | 
 | |||
| 
 | 
 | 
 | 
 | ||
| 
 | USB6 | 
 | 
 | 
 | |
| 
 | 
 | 
 | 
 | 
 | |
| JL1 | BIDE | 
 | USB7 | 
 | |
| 
 | Fan4 | 
 | |||
| 1394_1 1394_2 | 
 | 
 | 
 | 
 | 
 | 
