Intel SR1520MLNA User Guide - Page 88
Using the iBMC Boot Block Write Protect Jumper J1A4
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Page 88 highlights
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. iBMC Boot Block Write Protect 2 J1A4 3 Default (Write Protect) Write Enable AF002607 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. 68 Intel® Server System SR1520ML User's Guide
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