BOCA RESEARCH INC. BOCARAM/AT Card Type Memory card Chipset/Controller N/A I/O Options N/A Maximum DRAM 4096KB [Image] CONNECTIONS Purpose Location Purpose Location Add-On board CN1 Add-On board CN3 connector connector Add-On board CN2 Add-On board CN4 connector connector Note: CN1 interfaces with CN3, CN2 interfaces with CN4 FACTORY CONFIGURED - DO NOT ALTER Switch Position SW2/7 Pins 2 & 3 closed SW2/8 Pins 1 & 2 closed SYSTEM SPEED CONFIGURATION Speed JP2 ³ 12Mhz Pins 2 & 3 closed < 12Mhz Pins 1 & 2 closed SYSTEM EXTENDED MEMORY CONFIGURATION Ext. Max. SW1/1 SW1/2 SW1/3 SW1/4 JP1 Memory Memory 0MB N/A Off Off On Off Pins 2 & 3 closed 512KB N/A Off Off On On Pins 2 & 3 closed 1.0MB N/A Off On Off Off Pins 2 & 3 closed 1.5MB N/A Off On Off On Pins 2 & 3 closed 2.0MB N/A Off On On Off Pins 2 & 3 closed 2.5MB N/A Off On On On Pins 2 & 3 closed 3.0MB N/A On Off Off Off Pins 2 & 3 closed 3.5MB 3.5MB On Off Off On Pins 2 & 3 closed 4.0MB 2.0MB On Off On Off Pins 2 & 3 closed 4.5MB 2.5MB On Off On On Pins 2 & 3 closed 5.0MB 2.0MB On On Off Off Pins 2 & 3 closed 5.5MB 1.5MB On On Off On Pins 2 & 3 closed 6.0MB 1.0MB On On On Off Pins 2 & 3 closed 6.5MB 512KB On On On On Pins 2 & 3 closed 7.0MB N/A Off Off Off Off Pins 1 & 2 closed 7.5MB N/A Off Off Off On Pins 1 & 2 closed 8.0MB N/A Off Off On Off Pins 1 & 2 closed 8.5MB N/A Off Off On On Pins 1 & 2 closed 9.0MB N/A Off On Off Off Pins 1 & 2 closed 9.5MB N/A Off On Off On Pins 1 & 2 closed 10.0MB N/A Off On On Off Pins 1 & 2 closed 10.5MB N/A Off On On On Pins 1 & 2 closed 11.0MB 3.5MB On Off Off Off Pins 1 & 2 closed 11.5MB 2.0MB On Off Off On Pins 1 & 2 closed 12.0MB 2.5MB On Off On Off Pins 1 & 2 closed 12.5MB 2.0MB On Off On On Pins 1 & 2 closed 13.0MB 1.5MB On On Off Off Pins 1 & 2 closed 13.5MB 1.0MB On On Off On Pins 1 & 2 closed 14.0MB 512KB On On On Off Pins 1 & 2 closed Note: Extended memory is memory already installed prior to adding BOCARAM/AT Card. Maximum memory is the maximum amount of memory that can be added from the BOCARAM/AT card. BOCARAM/AT EXTENDED MEMORY CONFIGURATION Extended SW1/5 SW1/6 SW1/7 SW1/8 Memory 512KB Off Off Off On 1.0MB Off Off On Off 1.5MB Off Off On On 2.0MB Off On Off Off 2.5MB Off On Off On 3.0MB Off On On Off 3.5MB Off On On On 4.0MB On Off Off Off None Off Off Off Off I/O PORT ADDRESS SELECTION Address SW2/1 SW2/2 SW2/3 SW2/4 » 268h-269h Off Off Off On 208h-209h On Off Off Off 218h-219h Off On Off Off 258h-259h Off Off On Off FRAME SEGMENT ADDRESS SELECTION Address SW1/5 SW1/6 » D000h Off On E000h On Off [Image] BOCARAM/AT EXTENDED MEMORY CONFIGURATION IN ADDITION TO CONVENTIONAL MEMORY Memory SW1/1 SW1/2 SW1/3 SW1/4 SW1/5 SW1/6 SW1/7 SW1/8 JP1 0KB Off Off Off On Off Off Off On 2 & 3 512KB Off Off Off On Off Off On Off 2 & 3 1.0MB Off Off Off On Off Off On On 2 & 3 1.5MB Off Off Off On Off On Off Off 2 & 3 2.0MB Off Off Off On Off On Off On 2 & 3 2.5MB Off Off Off On Off On On Off 2 & 3 3.0MB Off Off Off On Off On On On 2 & 3 3.5MB Off Off Off On On Off Off Off 2 & 3 Note:Pins designated should be in the closed position. DRAM CONFIGURATION Size Bank 0 Bank 1 Bank 2 Bank 3 128KB (16) 4164 None None None 512KB (16) 41256 None None None 1MB (16) 41256 (16) 41256 None None 1.5MB (16) 41256 (16) 41256 (16) 41256 None 2MB (16) 41256 (16) 41256 (16) 41256 (16) 41256 DRAM CONFIGURATION - ADD-ON BOARD Size Bank 4 Bank 5 Bank 6 Bank 7 2.5MB (16) 41256 None None None 3MB (16) 41256 (16) 41256 None None 3.5MB (16) 41256 (16) 41256 (16) 41256 None 4MB (16) 41256 (16) 41256 (16) 41256 (16) 41256