Lenovo System x3650 M5 Installation And Service Manual page 129

System TPM physical
presence jumper
UEFI boot backup jumper
Figure 47. UEFI boot backup jumper (J15) location
5. Move the UEFI boot backup jumper (J15) from pins 1 and 2 to pins 2 and 3 to
enable the UEFI recovery mode.
6. Reinstall the server cover; then, reconnect all power cords.
7. Restart the server. The system begins the power-on self-test (POST).
8. Boot the server to an operating system that is supported by the firmware
update package that you downloaded.
9. Perform the firmware update by following the instructions that are in the
firmware update package readme file.
10. Turn off the server and disconnect all power cords and external cables, and
then remove the cover (see "Removing the top cover" on page 147).
11. Move the UEFI boot backup jumper (J15) from pins 2 and 3 back to the
primary position (pins 1 and 2).
12. Reinstall the cover (see "Replacing the top cover" on page 148).
13. Reconnect the power cord and any cables that you removed.
14. Restart the server. The system begins the power-on self-test (POST). If this
does not recover the primary bank, continue with the following steps.
15. Remove the top cover (see "Removing the top cover" on page 147).
16. Reset the CMOS by removing the system battery (see "Removing the system
battery" on page 252).
17. Leave the system battery out of the server for approximately 5 to 15 minutes.
18. Reinstall the system battery (see "Replacing the system battery" on page 253).
19. Reinstall the top cover (see "Replacing the top cover" on page 148).
20. Reconnect the power cord and any cables that you removed.
21. Restart the server. The system begins the power-on self-test (POST).
22. If these recovery efforts fail, contact your service representative for support.
1
2
3
1
2
3
4
5
6
7
8
Switch block 6 (SW6)
1
2
3
CMOS clear jumper
Chapter 3. Troubleshooting
115