Apple PC Compatibility Card - Manual (Page 305)

Video specifications
Video modes
m VGA modes 0-7 and D-13h
m SVGA modes for 640 x 480, 800 x 600, 1024 x 768, and 1280 x 1024 (79h,
6Ah, 70h)
m VESA 2.0 support in BIOS
m supports 13-, 14-, 16-, and 20-inch Macintosh-compatible monitors;
Macintosh Portrait Display monitors; Macintosh Two-Page Display
monitors; and 15-, 17,- and 20-inch Macintosh multiple scan monitors
m supports all VGA monitors
m EGA, CGA, MDA also supported
Video DRAM expansion
May have two sockets to accommodate 5 V, 256K x 16, 60 ns, standard fast-
page mode SOJ package DRAM devices (40 pin), such as Micron
#MT4C16257DJ-6, NEC #UPD424260LE60R, Samsung #KM416C256BJ-6,
or Hyundai #HY514260BJ-60.
Sync signals
Separate horizontal, vertical, and composite sync at TTL levels.
Power
m +5 V ± 5%, @ 3A typical
m +3.3 V ± 5%, @ 4A typical
305 Technical Information