I/A Series R2 UNC-600 and UNC-610 BIOS Settings and CMOS Battery Replacement
TAC I/A Series
I/A Series R2 UNC-600 and UNC-610
The following publication describes the BIOS settings required when replacing the CMOS battery in the UNC-600 or UNC-610. Be extremely cautious when replacing the battery as the battery holder can become very brittle with age.