ASRock 939Dual-SATA2 User Manual - Page 7
Caution - windows 7
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ASRock 8CH I/O: BIOS: OS: 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) 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) Microsoft® Windows® 2000 / XP / XP 64-bit compliant CAUTION! 1. For power-saving's sake, it is strongly recommended to enable AMD's Cool 'n' QuietTM technology under Windows system. See APPENDIX on page 40 to enable AMD's Cool 'n' QuietTM 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 12 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. 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 9 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. 7