He wasn't sure, but he was able to cool his Card with 2 40x40mm passive Heatsinks @ 200MHz.
The description of the Chip says:
355-0025-221
F26689.1 AS
0009
Taiwan
Picture: http://www.forum-3dcenter.org/vbulletin/attachment.php?attachmentid=3504&stc=1
The description of the Chip says:
355-0025-221
F26689.1 AS
0009
Taiwan
Picture: http://www.forum-3dcenter.org/vbulletin/attachment.php?attachmentid=3504&stc=1