Chapter 5: Advanced Motherboard Setup
Reset Button
The reset button (from the computer chassis) connects to pins 3 and 4 of JF1. See the table on the right for pin definitions.
Power Fail LED
The Power Fail LED connection is located on pins 5 and 6 of JF1. Re- fer to the table on the right for pin definitions.
Reset Button
Pin Definitions (JF1)
Pin# Definition
3Reset
4Ground
PWR Fail LED
Pin Definitions (JF1)
Pin# Definition
5Vcc
6Ground
Overheat/Fan Fail
Connect an LED to pins 7 and 8 of JF1 to indicate fan fail and provide advanced warning of chassis over- heating. Refer to the table on the right for pin definitions.
NIC2 (LAN2) LED
OH/Fan Fail LED
Pin Definitions (JF1)
Pin# Definition
7Vcc
8Ground
OH/Fan Fail Indicator
Status
State Definition
Off | Normal | |
On | Overheat | |
Flashing | Fan Fail | |
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The LED connections for LAN2 are on pins 9 and 10 of JF1. Attach an LED cable to display network activity. See the table on the right for pin defini- tions. (LAN2 on
NIC1 (LAN1) LED
The LED connections for LAN1 are on pins 11 and 12 of JF1. Attach an LED cable to display network activ- ity. See the table on the right for pin definitions.
HDD LED
The HDD LED connection is located on pins 13 and 14 of JF1. Attach a hard drive LED cable here to display disk activity (for any hard drive activ- ity on the system, including SATA and IDE).
NIC2 LED
Pin Definitions (JF1)
Pin# Definition
9Vcc
10Ground
NIC1 LED
Pin Definitions (JF1)
Pin# Definition
11Vcc
12Ground
HDD LED
Pin Definitions (JF1)
Pin# Definition
13+3.3V
14HD Active