Lenovo ThinkServer RD630 - Manual (Page 58)

and to avoid any possible damage to a live circuit. Jumper pins arranged in groups on the system board are
called jumper blocks. When two or more jumper pins are capped with a jumper, an electrical connection is
made between them and the equipment is thus instructed to activate certain settings accordingly.
The following illustration shows a jumper in the default setting position (pin 1 and pin 2). This is the correct
position for normal operation.
Figure 31. Default jumper setting
46 ThinkServer User Guide