9
http://www.TYAN.com
2.3 – Jumper Information
Jumper Function
Ref. Page
J21
CMOS Clear
Page 9
J22
External speaker header
N/ A
J34
Serial Port internal header
N/A
J38*
WOL ( Wake On LAN)
See Below
J39***
Hardware Monitor LED ( Reserved )
See below
J40
Front panel connector
Page 10
J41**
Hard disk activity LED external input
See below
J42
SMDC (Server Management Daughter Card) connector
Page 43
J43***
I
2
C bus connector ( Reserved )
See below
J49
Hyper Threading control
Page 10
J50
USB header #2
Page 33
J51
USB header #3
Page 33
J53&J58
Intel GbE 82546 4-pin external LAN activity/link
LED headers. Note: Left most pin is pin1.
Page 37
J55
Intel 82551 4-pin external LAN activity/link LED header
Page 37
J65
Force 400Mhz FSB instead of 533Mhz FSB
Page 10
JP3
FAN 3 current rate select
Page 13
* WOL is only supported by LAN1 (82551, 10/100 Mbps)
**
J41 is an LED INPUT. The idea is to run a wire from the activity LED output header of any plug-
in HD controller card (e.g. a RAID card) to the motherboard, so that the card's LED can be
"combined " with the IDE and SCSI activity indicators on the motherboard and then driven to the
J40 HD LED output. In other words, when a card's LED lights up, so will the front-panel hard-disk
activity indicator. This is useful for chassis that have only a single LED to indicate HD activity from
multiple controller sources. (Pin 1 = negative terminal of the add-on card's LED header, Pin 2 = do
not connect.)
*** These jumpers are reserved. Reserved jumpers are for engineering purposes only.
Jumper Example
Jumper OFF – open (without pin)
Jumper ON – closed (with pin)
CMOS Reset (J21)
1
Clear CMOS
1
Default
You can reset the CMOS settings in case an incorrect setting causes system
instability or you have forgotten your system/setup password or have just
flashed your BIOS by using these jumpers.
-
Power off system, disconnect power supply from motherboard
-
Set jumper J21 to Clear CMOS
-
Wait about 5 seconds
-
Set jumper J21 to Normal
