Figure 20. Cmos Recovery Jumper; Clearing The Cmos - Intel S5500BC - Server Board Motherboard User Manual

Clearing the CMOS

If you cannot access the BIOS setup screens, you must use the CMOS Clear jumper to
reset the configuration RAM. The CMOS Clear jumper is located on jumper block J2D2
on the server board.
1. Power down the system; do not disconnect the AC power.
2. Open the server.
3. Move the jumper from the normal operation position, covering pins 1 and 2, to the
CMOS Clear Force Erase position, covering pins 2 and 3.
4. Wait five seconds.
5. Reconnect the AC power and power up the system.
6. When the system begins beeping, power it down and disconnect the AC power.
7. Return the CMOS Clear jumper to the spare location, covering pins 1 and 2.
8. Close the server chassis; reconnect the AC power and power up the system. The
CMOS is now cleared and you can reset it by going into the BIOS setup.
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Intel Server Board S5500BC User's Guide

Figure 20. CMOS Recovery Jumper

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