Taiwan Commate Computer Inc. PV-DDR User Manual page 9

2.1.3 Clearing the CMOS (Yellow Jumper Caps)
JRTC : CMOS Function Selection
1-2 : Clear data
2-3 : Normal Operation (Default Setting)
How to Clear the CMOS Setting:
(1) Turn off the power.
(2) Remove ATX power cable from connector ATXPWR.
(3) Remove Yellow Jumper Cap from JRTC (2-3) and put on JRTC
(1-2) to remove the CMOS setting.
(4) Remove Yellow Jumper Cap from JRTC (1-2) and put on JRTC
(2-3).
(5) Connect ATX power cable back to connector ATXPWR.
(6) Turn on the power.
(7) While the system reboots, press <DEL> key to set the BIOS
setup.
2.1.4 CPU Voltage Setting
The motherboard supports CPU VID function. It can automatically detect CPU
VID signal and generates proper CPU core voltage.
2.1.5 CPU FSB Frequency Setting (Red Jumper Caps)
The JFSB jumper provides some FSB frequency settings for the CPU. Auto
Detect, 66MHz, 100MHz or 133MHz FSB frequency can be selected with this
jumper. The over specification operation is not recommended.