ASRock P4VX4 User Manual - Page 6

BIOS: OS: 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 4) Microsoft® Windows® 98SE / ME / 2000 / XP compliant CAUTION! 1. 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. 2. Do NOT use a 3.3V AGP card on P4VX4's AGP slot! It may cause permanent damage! 3. Power Management for USB 2.0 works fine under Microsoft® Windows® XP. It may not work properly under Microsoft® Windows® 98/ME/2000. Please refer to Microsoft® official document at http://www.microsoft.com/HWDEV/BUS/usb/USB2support.asp 4. Although P4VX4 offers stepless control, it is not recommended to perform over clocking. When the CPU frequency of P4VX4 is set to perform over clocking, other clocks, such as PCI clock, AGP clock, and Memory clock will also be overclocked proportionally. Frequencies other than the recommended CPU bus frequencies may cause the instability of the system or damage the CPU and the motherboard. 6