Intel SR1520ML - Server System - 0 MB RAM, User Manual

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68 Intel
®
Server System SR1520ML User’s Guide
Using the iBMC Boot Block Write Protect Jumper (J1A4)
The iBMC boot block write protect jumper (J1A4) is protection for the boot block portion
of the iBMC firmware. The default position of the jumper is covering pins 1-2. This
protects the boot block from being written to during an iBMC firmware update. In most
cases there is no need to update the boot block. Most update utilities are not built with the
authority to access this section of code.
In the unlikely event that the boot block must be written to, complete the following steps.
1. Power down the system and disconnect the AC power.
2. Open the server.
3. Move the J1A4 iBMC Boot Block Write Protect jumper from the default position,
covering pins 1 and 2 to the update position, covering pins 2 and 3 as indicated in
the following diagram.
Figure 50. iBMC Boot Block Write Protect Jumper (J1A4)
4. Close the server system and reconnect AC power and power up the server and
complete the update.
AF002607
3
2
Default
(Write
Protect)
Write
Enable
J1A4
iBMC Boot
Block Write
Protect