The NVRAM is increasing with that firmware, your will not be ale to restore settings.
Write them down or use screenshots.
Consider RMErlin FW while you are at it. rocks
Synology NAS DS211J DSM 4.1, Rocks
2*2TB WD2002FAEX Western Digital 2TB Caviar Black, SATA III, 7200RPM, 64MB Cache,
had the green ones EARS, with IDLE turned off, but one died and switched.
Primary ASUS RT-N66U running RMerlin 184.108.40.206.270.24.
Secondary (AP) LinkSys WRT54G V3.1 running DD-WRT