System Recovery and Update Jumpers (J1E1)
Table 14. System Recovery and Update Jumper Options
Option | Description |
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BMC Write | If pins 2 and 3 are jumpered (default), the BIOS boot block is | If pins 1 |
Protect | and 2 are jumpered, the boot block is erasable and programmable. | WARNING: |
| Incorrect programming of the boot block will render the system unbootable. | With |
| this option set to its default factory setting, the BMC’s operational code can still be | |
| programmed without moving the jumper. |
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CMOS Clear | If pins 4 and 5 are jumpered (default), preservation of configuration CMOS through |
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| system reset is controlled by the BMC. If pins 5 and 6 are jumpered, CMOS contents |
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| are set to the manufacturing default during system reset. |
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Password Clear | If pins 7 and 8 are jumpered (default), the current system password is maintained |
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| during system reset. If pins 8 and 9 are jumpered, the password is cleared on reset. |
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Recovery Boot | If pins 10 and 11 are jumpered (default) the system will attempt to boot using the BIOS |
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| programmed in the Flash memory. If pins 11 and 12 are jumpered, the BIOS will |
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| attempt a recovery boot, loading BIOS code from a |
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| This feature is typically used when the BIOS code has been corrupted. |
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DSR/DCD Configuration Jumper (J6A2)
For serial concentrators that require a DCD signal, configure the J6A2 jumper block as shown in Figure 39.
J6A2
OM12841
Figure 39. J6A2 Jumper Block Configured for DCD Signal
For serial concentrators that require a DSR signal, configure the J6A2 jumper block as shown in Figure 40.
J6A2
OM12842
Figure 40. J6A2 Jumper Block Configured for DSR Signal (Default)
Technical Reference | 95 |
