ASRock P4S55FX User Manual - Page 6

ASRock I/O PlusTM: 1 PS/2 mouse port, 1 PS/2 keyboard port, 1 serial port: COM1, 1 parallel port: ECP/EPP support, 6 default USB 2.0 ports, 1 RJ 45 port, Audio Jack: Line In / Line Out / Microphone BIOS: AMI BIOS Supports "Plug and Play" ACPI 1.1 compliance wake up events Supports jumperfree SMBIOS 2.3.1 support CPU frequency stepless control (only for advanced users' reference, see CAUTION 5) OS: Microsoft® Windows® 98SE / ME / 2000 / XP compliant CAUTION! 1. 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. 2. If the CPU is overheated, please check if the CPU fan on the motherboard functions properly before you resume the system. To improve heat dissipation, remember to spray thermal grease between the CPU and the heatsink when you install the PC system. 3. Do NOT use a 3.3V AGP card on the AGP slot of this motherboard! It may cause permanent damage! 4. 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. Please refer to Microsoft® official document at http://www.microsoft.com/whdc/hwdev/bus/USB/USB2support.mspx 5. 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. 6