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Jumper Blocks IntelP®P Server Board S3420GP TPS
7. 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 35. Jumper Blocks (J1A2, J1F1, J1F3, J1F2 and J1F5)
Table 52. Server Board Jumpers (J1F1, J1F2, J1F3, J1F5, J1A2)
Jumper Name Pins System Results
1-2 These pins should have a jumper in place for normal system operation. (Default) J1F5: CMOS
Clear
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.
1-2 ME Firmware Force Update Mode – Disabled (Default) J1F1: ME Force
Update
2-3 ME Firmware Force Update Mode – Enabled
1-2 These pins should have a jumper in place for normal system operation. (Default) J1F2:
Password Clear
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.
1-2 These pins should have a jumper in place for normal system operation. (Default) J1F3: BIOS
Recovery
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 1-2 Integrated BMC Firmware Force Update Mode – Disabled (Default)
Revision 1.0
Intel order number E65697-003
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