820-1540-A 661-3599 - 20 inch 1.8 GHz A1076 iMac G5 Logic Board w-SuperDrive NB-3561W
This is a replacement logic board with processor for the 1.8GHz iMac G5 20".
EEE code: PTL,QBK,RBW,RBZ
Apple part number: 661-3599, 820-1540-A
Compatible models: A1076-M9250LL-White, 820-1540-A
Compatible Mac info. : 20-inch 1.8GHz G5 iMac, 820-1540-A
661-3599 - 20 inch 1.8 GHz A1076 iMac G5 Logic Board w-SuperDrive, 8201540A