Intel® Server Board S3420GP TPS Jumper Blocks
Revision 2.4
Intel order number E65697-010
91
8. Jumper Blocks
The server board has several 3-pin jumper blocks that can be used to configure, protect, or
recover specific features of the server board.
Figure 39. Jumper Blocks (J1A2, J1F1, J1F3, J1F2 and J1F5)
Table 59. Server Board Jumpers (J1F1, J1F2, J1F3, J1F5, J1A2)
Jumper Name Pins System Results
J1F5: CMOS
Clear
1-2 These pins should have a jumper in place for normal system operation. (Default)
2-3 If these pins are jumpered with AC power plugged, the CMOS settings are cleared within
five seconds. These pins should not be jumpered for normal operation.
J1F1: ME Force
Update
1-2 ME Firmware Force Update Mode – Disabled (Default)
2-3 ME Firmware Force Update Mode – Enabled
J1F2:
Password Clear
1-2 These pins should have a jumper in place for normal system operation. (Default)
2-3 If these pins are jumpered, administrator and user passwords are cleared within 5-10
seconds after the system is powered on. These pins should not be jumpered for normal
operation.
J1F3: BIOS
Recovery
1-2 These pins should have a jumper in place for normal system operation. (Default)
2-3 Given that the main system BIOS will not boot with these pins jumpered, system can only
boot from EFI-bootable recovery media with the recovery BIOS image.
J1A2: BMC
Force Update
1-2 Integrated BMC Firmware Force Update Mode – Disabled (Default)
2-3 Integrated BMC Firmware Force Update Mode – Enabled
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