IBM THINKCENTRE 8086 User Manual page 45

the series of beeps will end, and the system will automatically turn off.
Remove the diskette from the USB diskette drive.
11. Repeat steps 2 through 6 on page 30.
12. Move the Clear CMOS/Recovery jumper to its original position.
13. Close the cover and reconnect all power cords and cables that were
disconnected.
14. Turn on the computer to restart the operating system.
Appendix A. Updating system programs
31