Display Card 8■24 & 8■24 GC: Identifying Rev & Upgrade ROM

How can I tell whether a Macintosh Display Card 824 or Macintosh Display Card 824 GC is Rev A or Rev B?
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Macintosh Display Card  REV   Card Service P/N    P/N on ROM


Display Card 824             A        661-0608            

Display Card 824             B        661-0678            341-0868

Display Card 824 GC          A        661-0606            

Display Card 824 GC          B        661-1642            341-0266



Upgrading Rev A to Rev B ROMs

Macintosh Display Card     Upgrade P/N

Display Card 824            076-0548

Display Card 824GC          076-1019


The Rev B ROMs provides Page-White correction for the Macintosh 21-in. Color Display and Macintosh 16-in. Color Display support.
Published Date: Feb 18, 2012