Features that are Configurable by a Jumper Reset
Jumpers are often required to configure settings such as these:
Processor CPU Voltage – Many new motherboards require a jumper setting for the CPU voltage. Of course this must be set correct, according to the manufacturer’s specifications. However, some gaming enthusiasts have been known to push the boundaries and over-clock their processors to get better performance.
Processor Bus Speed – The requirements for properly setting this parameter will depend on CPU specifications and the manufacturer’s recommendation. In some cases, the CPU can be made to run at various bus speeds. However, it is strongly advised that the manufacturer’s recommendation be followed in this regard.
Processor Type – The motherboard and CPU manuals will guide the computer technician in properly setting the processor type jumper, without the proper setting the CPU could be damaged or fail to run at optimal level.
CMOS Password Reset - This will reset any password that was stored in the CMOS for accessing the CMOS.
Flash BIOS Enable - Some boards require that a jumper be specially configured before the BIOS (basic input output system) can be updated. As usual, check the manual for the correct setting.
Clear CMOS – In situations when a technician wants to wipe the slate clean and reconfigure the BIOS from scratch, he or she may reset the CMOS by shorting the CMOS reset jumper.