Hi-Fi Z77S/Hi-Fi H77S
19
J_COM1: Serial Port Connector
The motherboard has a Serial Port Connector for connecting RS-232 Port.
Pin
Assignment
1 Carrier
detect
2 Received
data
3 Transmitted
data
4 Data
terminal
ready
5 Signal
ground
6
Data set ready
7
Request to send
8 Clear
to
send
9 Ring
indicator
10 NC
BIOS POST Code/CPU Temperature Indicator
This indicator will show POST code while booting. After the booting sequence,
it will show current CPU temperature. Please refer to Chapter 6.3 for all the
BIOS POST codes.
On-Board Buttons
There are 2 on-board buttons.
SW_RST1:
Reset button.
SW_PWR1:
Power Switch button.