Hello,
how can i reset the nvram password hardly with jumpers. ?
There isn't a jumper to reset the password.
If the security-mode is set to
full every command, even boot requires to enter the firmware password, order a new timekeeper/nvram from Sun.
command enter boot and use the eeprom command to set the security-mode to none (this requires that the boot-device is bootable and you know the root password). If the disk isn't bootable or you don't know the root password, swap with a disk that contains a bootable system with a known root password from another equaly equipped Blade 1500 and boot from this disk, next step see above.
Michael