ASROCK 939Dual-SATA2, Installation Manual, Page: 6 / 96

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ASRock 939Dual-SATA2 Motherboard
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ASRock 8CH I/O: 1 PS/2 Mouse Port, 1 PS/2 Keyboard Port
1 Serial Port: COM1
1 Parallel Port (ECP/EPP Support)
4 Ready-to-Use USB 2.0 Ports
1 RJ-45 Port
Audio Jack: Side Speaker / Rear Speaker / Central/Bass /
Line In / Front Speaker / Microphone
(see CAUTION 6 )
BIOS: AMI Legal BIOS
Supports “Plug and Play”
ACPI 1.1 Compliance Wake Up Events
SMBIOS 2.3.1 Support
CPU Frequency Stepless Control
(only for advanced users’ reference, see CAUTION 7 )
OS: Microsoft ® Windows ® 98 SE / ME / 2000 / XP / XP 64-bit
compliant
CAUTION!
1. For power-saving’s sake, it is strongly recommended to enable AMD’s Cool ‘n’
Quiet
TM
technology under Windows system. See APPENDIX on page 40 of
“User Manual” in the Support CD to enable AMD’s Cool ‘n’ Quiet
TM
technology.
2. This motherboard supports Dual Channel Memory Technology. Before you
implement Dual Channel Memory Technology, make sure to read the
installation guide of memory modules on page 8 for proper installation.
3. While CPU overheat is detected, the system will automatically shutdown.
Before you resume the system, please check if the CPU fan on the motherboard
functions properly and unplug the power cord, then plug it back again. To
improve heat dissipation, remember to spray thermal grease between the
CPU and the heatsink when you install the PC system.
4. Do NOT use a 3.3V AGP card on the AGP slot of this motherboard!
It may cause permanent damage!
5. Power Management for USB 2.0 works fine under Microsoft
®
Windows
®
XP
SP1 / 2000 SP4. It may not work properly under Microsoft ® Windows ® 98/ ME.
6. For microphone input, this motherboard supports both stereo and mono modes.
For audio output, this motherboard supports 2-channel, 4-channel, 6-channel,
and 8-channel modes. Please check the table on page 3 for proper connection.
7. Although this motherboard offers stepless control, it is not recommended to
perform over-clocking. Frequencies other than the recommended CPU bus
frequencies may cause the instability of the system or damage the CPU.