5-14 Problem SolvingEnable F2 Prompt by Changing a Jumper and Using SSUIf you do not have an SSU diskette or CD available, you can clear CMOS memory toenable the F2 prompt. This means you must change a jumper on the system board, runthe SSU, save your changes, and change the jumper back to the default setting.! CAUTIONThis procedure resetsall to default settings: Clearing CMOSmemory resetsall SSU and Setup settings to their defaults, not justthe CMOS CLR setting. Before proceeding, check that you have abackup paper copy of configuration. Referring to the worksheetscould make your reconfiguration task easier.1. Observe the safety and ESD precautions stated at the beginning of this chapter.2. Turn off all connected peripherals, turn off system power, and disconnect the ACpower cord.3. Remove the side cover. Refer to the “Upgrades and Options” chapter forinformation on removing the side cover. You do not need to remove the systemboard from the chassis, and you probably do not need to remove any add-in boards.4. Locate the CMOS configuration jumper at the edge of the system board toward thefront of the system. Refer to the “Configuring Your System” chapter forinformation on the location of the CMOS jumper.5. Move the CMOS CLR jumper from the CMOS Protect setting on pins 1 and 2 to theCMOS Clear setting on pins 2 and 3.6. Reinstall the side cover for your safety, and connect the power cord to the system.7. Power on the system. POST starts and halts displaying an “Invalid CMOS Settings”error.8. Turn off the system, and disconnect the power cords.9. Again remove the side cover.10. Move the CMOS CLR jumper from pins 2 and 3 back to pins 1 and 2 (the ProtectCMOS memory position).11. Reinstall the side cover, and connect the power cords.12. Turn the system on. Run BIOS Setup (F2) to verify the correct settings. Refer toChapter 3 for information on running BIOS Setup.Bootable CD-ROM Is Not DetectedCheck the following: Is the BIOS set to allow the CD-ROM to be the first bootable device? Check yourBIOS Setup (F2) configuration.