Replacement Motherboard for 600/680 G3 Systems — 911990-001 / 911990-601 / 901195-001 System Board

Replacement system board compatible with 600 and 680 G3 models. Matches part numbers 911990-001, 911990-601 and 901195-001. Use this motherboard to replace a faulty mainboard in the listed G3 systems — confirm your existing board’s part number matches one of the identifiers above before ordering.