Jump 21 on Tyan S5120 Tomcat i915

Jumper 21 on the tyan s5120 is for the front panel connectors. I don't know what some of the pins are for, but need help on the others

pins 1 & 3 HD Led - got that
5 & 7 Gnd reset - got that
9 & 11  9 - +5V, 11 NIMI  - HELP ME OUT
15 & 17 15 SMBUS Data, 17 SMBUS Clock - HELP ME OUT

2 & 4 Power + and - - I take it this is the power LED
6 & 8 Power button a & GrD - got that
10 & 12 Sleep Button & GrD - got that
14 NC
16 & 18   16 -GND, 18 Intru#  HELP ME OUT
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Intru = Intrusion Alarm.
Some cases (usually servers) have an alarm that goes off if the case is open.
More specifically:
Those header pins go to the chassis intrusion switch found on some cases.
You turn the feature on/off in the BIOS.
I wouldn't use it even if my case had a switch.

Here is your manual:
Fell asleep anwering that din' I. Missed a bunch of it.

This is a front panel connector.
If you don't front panel things to connect to them then you don't need them.

Pins 2 + 4 = Yes, The power LED.

Pins 15 + 17 = SMBus - System Management Bus.

Pins 9 + 11 = NIMI, Network Information and Management Infrastructure
Is basically a Linux Network Monitor.

Pin 13 is +5vsb . I don't know why that would be there unless NIMI uses it.

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