UNIDENTIFIED SUPER-10 TURBO XT MAINBOARD Processor V20/8088 Processor Speed 4.77/8/10MHz Chip Set Unidentified Video Chip Set None Maximum Onboard Memory 640KB Maximum Video Memory None Cache None BIOS AMI/Award/Phoenix Dimensions 254mm x 218mm I/O Options None NPU Options 8087 [Image] CONNECTIONS Purpose Location Purpose Location Keylock JP1 Power LED JP3 pins 3 & 4 Reset switch JP2 Turbo LED JP4 Speaker JP3 pins 1 & Turbo switch JP5 2 USER CONFIGURABLE SETTINGS Function Label Position Turbo enabled through hardware switch JP5 Closed (Award only) Turbo enabled through software (CTRL, JP5 Open ALT, +) (Award only) Turbo disabled through software (CTRL, JP5 Open ALT, -) (Award only) Turbo enabled/disabled through software JP5 (CTRL, ALT, +) (Phoenix/AMI only) NPU not installed SW1/2 On NPU installed SW1/2 Off Note: If BIOS is Phoenix or AMI, pressing the above keyboard keys will enable or disable the turbo mode. DRAM CONFIGURATION Size Bank 0 Bank 1 Bank 2 P 2 Bank 3 P 3 256KB (9) None None None None None 41256 512KB (9) (9) None None None None 41256 41256 576KB (9) (9) (2) (1) None None 41256 41256 4464 4164 640KB (9) (9) (2) (1) (2) (1) 4164 41256 41256 4464 4164 4464 DRAM SWITCH CONFIGURATION Size SW1/3 SW1/4 256KB Off Off 512KB On Off 640KB Off On CPU SPEED SELECTION Speed SW1/1 4.77MHz Off 8MHz On 10MHz On FLOPPY DRIVE SELECTION Drives installed SW1/7 SW1/8 1 On On 2 Off On 3 On Off 4 Off Off MONITOR SELECTION Setting SW1/5 SW1/6 None On On Color (40 x 20) Off On Color (80 x 25) On Off Monochrome or both Off Off MISCELLANEOUS TECHNICAL NOTE Note: If JP5 is closed, SW1/1 must be set to the off position.