STB SYSTEMS, INC. POWERGRAPH VGA (VER. 2) Card Type Video Video Chip Set Unidentified Highest Resolution 1024 x 768 Supported Maximum Onboard Memory 1MB DRAM Data Bus 16-bit ISA Video Types Supported XVGA [Image] CONNECTIONS Function Label Function Label 15-pin analog video port J5 DAC chip socket U2 DAC chip U1 Note: Either U1 or U2 should be installed, but not both. USER CONFIGURABLE SETTINGS Setting Label Position » Two wait state operation J1 Pins 2 & 3 closed Zero wait state operation J1 Pins 1 & 2 closed » Card does not use IRQ2/9 J2 Pins 2 & 3 closed Card uses IR/FONT J2 Pins 1 & 2 closed » Factory configured - do not alter J3 Pins 1 & 2 closed » BIOS uses 8-bit I/O J5 Pins 1 & 2 closed BIOS uses 16-bit I/O J5 Pins 2 & 3 closed DRAM Note: This card may take 256KB, 512KB, or 1MB of on-board DRAM. The locations of the banks and the configurations of the chips in these banks is unidentified. VERTICAL SCAN RATE Resolution Scan Rate J4 640 x 480 60Hz Pins 1 & 2 closed 800 x 600 56Hz Pins 1 & 2 closed 1024 x 768 43Hz (interlaced) Pins 1 & 2 closed 640 x 480 72Hz Pins 2 & 3 closed 800 x 600 72Hz Pins 2 & 3 closed 1024 x 768 60Hz Pins 2 & 3 closed