Patent ID: 7100068

Claim:
A panel device mounted on the front side of a computer case for adjusting operating frequency and showing system information of a computer including a central processing unit (CPU), a basic input output system (BIOS), a system management (SM) bus and a system clock generator, the system clock generator providing a plurality of system clocks, wherein one of the system clocks is the operating frequency of the CPU, the panel device comprising: an adjustment unit having a plurality of adjustment stages for enabling a user to selectively increase or decrease the operating frequency of the CPU; a display module for showing the system information; and a microprocessor interconnecting the adjustment unit and the display module with the CPU, the microprocessor being capable of adjusting the operating frequency of the CPU in response to an adjustment done by the adjustment unit; wherein the microprocessor issues an interrupt signal to the CPU for interrupting the CPU so as to control the system clock generator to modify the operating frequency of the CPU via the BIOS and SM bus, and the microprocessor also issues a service request to the computer to request the system information and then displays the system information on the display module, and wherein the displayed system information includes a CPU temperature, a system temperature, a motherboard status, a memory status, a hard disk status, and a CD-ROM status, and the display module comprises a plurality of display units for showing the CPU temperature, the system temperature, the motherboard status, the memory status, the hard disk status, and the CD-ROM status respectively.