Manual for SynactiX 5EP/5EI
Diagnostic LED Function(Optional)
R1
R2
R3
R4
Diagnostic LED
Diagnostic LED Function
R1 R2 R3 R4 Description
0 0 0 0
System Power ON
0 0 0 1
Early Chipset Initialization
0 0 1 0
Memory Detection Test
0 0 1 1
Decompressing BIOS image to RAM
0 1 0 0
Initializing Keyboard Controller
0 1 0 1
Testing VGA BIOS
0 1 1 0
Processor Initialization
0 1 1 1
Testing RTC(Real Time Clock)
1 0 0 0
Initializing Video Interface
1 0 0 1
BIOS Sign On
1 0 1 0
Testing Base and Extended Memory
1 0 1 1
Assign Resource to all ISA
1 1 0 0
Initializing Hard Drive Controller
1 1 0 1
Initializing Floppy Drive Controller
1 1 1 0
Boot Attempt
1 1 1 1
Operating System Booting
1=GREEN 0=RED
ATX Power Supply Connector & Power Switch (POWER SW)
Be sure to connect the power supply plug to this connector in its proper orientation. The
power switch (POWER SW) should be connected to a momentary switch. When powering
up your system, first turn on the mechanical switch of the power supply (if one is provided),
then push once the power switch. When powering off the system, you needn’t turn off the
mechanical switch, just
Push once
*
the power switch.
Note: If you change “Soft-off by PWR-BTTN” from default “Instant-off” to “De-
lay 4 Secs” in the “POWER MANAGEMENT SETUP” section of the BIOS, the power
switch should be pressed for more than 4 seconds before the system pow-
ers down.
Chapter 2
ATX Power Supply Connector
POWER
SW
20
1
5V
5 V
-5V
GND
GND
PS-ON
-12V
3.3V
GND
12V
5VSB
5V
GND
3.3V
GND
5V
GND
PW-OK
3.3V
GND
