POC-100 User’s Manual
Copyright © 2013 Neousys Technology Inc. All Right Reserved.
Page 53 of 65
COM3 Operating Mode (Optional)
If you have a POC-100 with the option of additional 2 COM ports, you will see COM3 and
COM4 in BIOS menu. COM3 supports RS-232 (full-duplex), RS-422 (full-duplex) and
RS-485 (half-duplex) mode, while COM4 is RS-232 only. You can set the COM3 operating
mode via BIOS settings. Another option in BIOS called “Slew Rate” defines how sharp the
rising/falling edge is for the output signal of COM3. For long-distance RS-422/485
transmission, you may set the “Slew Rate” option as “High” to improve signal quality.
.
To set COM1 operating mode:
4. When POC-100 boots up, press F2 to enter BIOS setup utility.
5. Go to [Advanced]
[Peripheral Configuration].
6. Set the [Set COM3 as] to a proper mode for COM3 of your POC-100.
SATA Controller Mode
The SATA controller of POC-100 supports two modes of operations, SATA Only and AHCI
mode. SATA Only mode configures SATA controller to access SATA interface in legacy IDE
mode, and is compatible with most storage devices. AHCI mode, which exposes SATA's
advanced capabilities such as hot swapping and native command queuing, is supported in
several later version of operating systems.
Our suggestion of how to set SATA controller mode is
If you’re using Windows XP, Linux kernel earlier than 2.6.19, you should select