DIAMOND FLOWER, INC. 486-OCV PLUS Processor 80486SX/80486DX/80486DX2/Pentium Overdrive Processor Speed 25/33/40/50(internal)/50/66(internal)/66MHz Chip Set Opti Max. Onboard DRAM64MB Cache 64/128/256KB BIOS AMI Dimensions 330mm x 218mm I/O Options 32-bit VESA local bus slots (2) [Image] CONNECTIONS Purpose Location Purpose Location Diagnostic LCD port J1 Turbo switch J7 Keyboard connector J2 Reset switch J8 Speaker J3 PS/2 mouse port J9 Power LED & keylock J4 External battery J10 Turbo LED J5 32-bit VESA Local SL1, SL2 bus slots Reset switch J6 USER CONFIGURABLE SETTINGS Function Jumper Position » CMOS memory normal operation J11 pins 1,2,3 open (External Battery) CMOS memory normal operation J11 pins 1 & 2 (Internal Battery) closed CMOS memory clear J11 pins 2 & 3 closed » Factory configured - do not JP13 Open alter » Factory configured - do not JP14 Closed alter » Factory configured - do not JP26 pins 1 & 2 alter closed » Monitor type select color JP29 Closed Monitor type select monochrome JP29 Open » Factory configured - do not JP31 pins 1 & 2 alter closed DRAM CONFIGURATION Size Bank 0 Bank 1 Bank 2 Bank 3 1MB (1) 256K x NONE NONE NONE 36 2MB (1) 256K x (1) 256K x NONE NONE 36 36 2MB (1) 512K x NONE NONE NONE 36 4MB (1) 1M x 36 NONE NONE NONE 5MB (1) 256K x (1) 1M x 36 NONE NONE 36 6MB (1) 2M x 36 (1) 256K x (1) 1M x 36 NONE 36 6MB (1) 512K x NONE (1) 1M x 36 NONE 36 8MB (1) 1M x 36 (1) 1M x 36 NONE NONE 8MB (4) 2M x 36 NONE NONE NONE 9MB (1) 1M x 36 (1) 1M x 36 (1) 256K x NONE 36 9MB (4) 2M x 36 NONE (1) 256K x NONE 36 12MB (1) 1M x 36 (1) 1M x 36 (1) 1M x 36 NONE 12MB (4) 2M x 36 NONE (1) 1M x 36 NONE 13MB (1) 256K x (1) 1M x 36 (1) 1M x 36 (1) 1M x 36 36 13MB (1) 256K x (1) 1M x 36 (1) 2M x 36 NONE 36 16MB (1) 1M x 36 (1) 1M x 36 (1) 1M x 36 (1) 1M x 36 16MB (4) 4M x 36 NONE NONE NONE 16MB (4) 2M x 36 NONE (1) 2M x 36 NONE 18MB (1) 256K x (1) 256K x (1) 4M x 36 NONE 36 36 18MB (1) 512K x NONE (1) 4M x 36 NONE 36 20MB (1) 1M x 36 (1) 4M x 36 NONE NONE 20MB (1) 4M x 36 (1) 1M x 36 NONE NONE 24MB (1) 1M x 36 (1) 1M x 36 (1) 4M x 36 NONE 24MB (1) 2M x 36 NONE (1) 4M x 36 NONE 24MB (1) 1M x 36 (1) 4M x 36 (1) 4M x 36 NONE 24MB (1) 4M x 36 (1) 1M x 36 (1) 4M x 36 NONE 28MB (1) 1M x 36 (1) 1M x 36 (1) 4M x 36 (1) 1M x 36 28MB (1) 2M x 36 NONE (1) 4M x 36 (1) 1M x 36 28MB (1) 1M x 36 (1) 4M x 36 (1) 1M x 36 (1) 1M x 36 28MB (1) 1M x 36 (1) 4M x 36 (1) 2M x 36 NONE 28MB (1) 4M x 36 (1) 1M x 36 (1) 1M x 36 (1) 1M x 36 28MB (1) 4M x 36 (1) 1M x 36 (4) 2M x 36 NONE 32MB (1) 4M x 36 (1) 4M x 36 NONE NONE DRAM CONFIGURATION Size Bank 0 Bank 1 Bank 2 Bank 3 32MB (1) 8M x 36 NONE NONE NONE 34MB (1) 256K x (1) 256K x (1) 4M x 36 (1) 4M x 36 236 236 34MB (1) 512K x NONE (1) 8M x 36 NONE 36 36MB (1) 1M x 36 (1) 4M x 36 (1) 4M x 36 NONE 36MB (1) 4M x 36 (1) 1M x 36 (1) 4M x 36 NONE 36MB (1) 4M x 36 (1) 4M x 36 (1) 1M x 36 NONE 36MB (1) 8M x 36 NONE (1) 1M x 36 NONE 40MB (1) 1M x 36 (1) 1M x 36 (1) 4M x 36 (1) 4M x 36 40MB (4) 2M x 36 NONE (1) 8M x 36 NONE 40MB (1) 1M x 36 (1) 4M x 36 (1) 4M x 36 (1) 1M x 36 40MB (1) 4M x 36 (1) 1M x 36 (1) 4M x 36 (1) 1M x 36 40MB (1) 4M x 36 (1) 4M x 36 (1) 1M x 36 (1) 1M x 36 40MB (1) 8M x 36 NONE (1) 2M x 36 NONE 48MB (1) 4M x 36 (1) 4M x 36 (1) 4M x 36 NONE 48MB (1) 8M x 36 NONE (1) 4M x 36 NONE 52MB (1) 1M x 36 (1) 4M x 36 (1) 4M x 36 (1) 4M x 36 52MB (1) 1M x 36 (1) 4M x 36 (1) 8M x 36 NONE 52MB (1) 4M x 36 (1) 1M x 36 (1) 4M x 36 (1) 4M x 36 52MB (1) 4M x 36 (1) 1M x 36 (1) 8M x 36 NONE 52MB (1) 4M x 36 (1) 4M x 36 (1) 4M x 36 (1) 1M x 36 52MB (4) 8M x 36 NONE (1) 4M x 36 (1) 1M x 36 64MB (1) 4M x 36 (1) 4M x 36 (1) 4M x 36 (1) 4M x 36 64MB (1) 8M x 36 NONE (1) 8M x 36 NONE CPU SPEED SELECTION Speed JP12 JP25 25MHz Open pins 2 & 3 closed 33MHz Closed pins 2 & 3 closed 50iMHz Open pins 1 & 2 closed 50MHz Open pins 2 & 3 closed 66iMHz Closed pins 2 & 3 closed CACHE CONFIGURATION Size Bank 0 Bank 1 TAG 64KB (4) 8K x 8 (4) 8K x 8 8K x 8 128KB (4) 32K x 8 NONE 8K x 8 256KB (4) 32K x 8 (4) 32K x 8 16K x 8 or 32K x 8 CACHE JUMPER CONFIGURATION Size JP6 JP7 JP8 JP9 64KB Open Open pins 2 & 3 pins 2 & 3 closed closed 128KB Closed Open pins 1 & 2 pins 1 & 2 closed closed 256KB Closed Closed pins 2 & 3 pins 2 & 3 closed closed VESA WAIT STATE/BUS SPEED CONFIGURATION CPU speed Wait states JP23 JP24 < 33MHz 0 wait states Open Open > 33MHz 1 wait state Closed Closed VESA CONFIGURATION Function JP18 JP34 No delay pins 2 & 3 closed pins 2 & 3 closed Delay 1 PLCK pins 1 & 2 closed pins 1 & 2,3 & 4 closed Note:If using a 80486DX 50mhz CPU, the recommended setting is for delay 1 PLCK.