Cmos Memory Clearing Header; S2K Mode Select Header - Abit KD7A User Manual

2-6
(3).

CMOS Memory Clearing Header

This header uses a jumper cap to clear
the CMOS memory.
•
Pin 1-2 shorted (default):
Normal operation.
•
Pin 2-3 shorted: Clear CMOS
memory.
WARNING: Turn the power off first
(including the +5V standby power)
before clearing the CMOS memory.
Failing to do so may cause your
system to work
malfunction.
(4).

S2K Mode Select Header

This header uses a jumper to select the S2K mode.
Short pin-2 and pin-3 for "Strapping from Hardware" to allow the CPU hardware controls the timing of
S2K bus for a better system flexibility.
The default setting is pin-1 and pin-2 shorted for "Strapping from boot ROM" to allow the internal boot
ROM controls the timing of S2K bus.
KD7A
abnormally or
Chapter 2