Intel SC5400RA User Guide - Page 134

Clearing the CMOS If you are not able to access the BIOS setup screens, the CMOS Clear jumper will need to be used to reset the configuration RAM. 1. Power down the system. Leave the AC power cord connected. 2. Remove the chassis cover. For instrucstions, see "Removing the Chassis Cover" on page 24. 3. Locate the CMOS Clr jumper block at board position J1D1. See Figure 112. 4. Move the jumper from the normal operation position, covering pins 1 and 2, to the CMOS Clear position, covering pins 2 and 3, as shown by the diagram. CMOS CLR Default 2 Clear 3 CMOS J1D1 AF001428 Figure 112. CMOS Clear Jumper in the Clear CMOS Position 5. Wait 10 seconds. 6. Move the CMOS Clear jumper back to the original position, covering pins 1 and 2. 7. Install the chassis cover. For instructions, see "Installing the Chassis Cover" on page 25. 8. Power up the server system. 112 Intel® Server System SC5400RA User's Guide