Chapter 3 Maintaining the Sun Fire V20z Server 3-47
3.6.2 Clear-CMOS Jumper
The location of the Clear-CMOS jumper (J110) on the Sun Fire V20z motherboard is
shown below. This jumper can be used to clear the CMOS if the server hangs during
certain conditions.
■ The default position for the jumper is pins 2+3, which is the setting for “Clear-
CMOS-Removed.” This setting retains CMOS settings on each reboot of the
server.
■ If you move the jumper to pins 1+2, this is the “Clear-CMOS-Installed” setting.
This setting will clear the CMOS settings with each reboot of the server.
FIGURE 3-36 Sun Fire V20z Motherboard, Showing Clear-CMOS Jumper J110
2
3
5
6
1
4
Clear-CMOS
Jumper J110
123
DFLT
CLR