AUVA COMPUTER INC. CAM 25-P9, CAM 33-P9, CAM 33-F J-MARK COMPUTER CORPORATION OPTI-495SX 3/486WB SEE-THRU DATA SYSTEMS, LTD. STO 98-5VL Processor 80386DX/CX486DLC/80486SX/80487SX/80486DX/ODP486SX/80486DX2 Processor Speed 25/33/40/50(internal)/50/66(internal)MHz Chip Set OPTI Max. Onboard 32MB DRAM SRAM Cache 64/128/256KB BIOS MR Dimensions 235mm x 220mm I/O Options VESA local bus slots (3) NPU Options None [Image] CONNECTIONS Purpose Location Purpose Location External battery J1 Turbo LED JP32 Power LED & J19 Reset switch RST keylock Speaker J20 32-bit VESA Local S2 & S3 bus slots (Slave) Turbo switch JP31 32-bit VESA Local S2 & S3 bus slots (Master) Note:VESA Local bus slot S1 should only be used for a VGA video card. USER CONFIGURABLE SETTINGS Function Jumper Position » CMOS memory normal operation JP1 pins 2 & 3 closed CMOS memory clear JP1 pins 1 & 2 closed » Factory configured - do not alter JP2 open Bus clock speed select iOSC/4 JP3 closed Bus clock speed select iOSC/5 JP3 open » Monitor type select color JP4 closed Monitor type select monochrome JP4 open » Factory configured - do not alter JP16 open 80486 PQFP enabled JP17 open 80486 PQFP disabled JP17 closed 80386 PQFP enabled JP18 open 80386 PQFP disabled JP18 closed » VESA bus speed select <=33MHz JP22 open VESA bus speed select > 33MHz JP22 closed » VESA bus wait states select 0 JP26 open (CPU <=33MHz) VESA bus wait state select 1 (CPU JP26 closed > 33MHz) DRAM CONFIGURATION Size Bank 0 Bank 1 1MB (4) 256K x 9 NONE 2MB (4) 256K x 9 (4) 256K x 9 4MB (4) 1M x 9 NONE 5MB (4) 256K x 9 (4) 1M x 9 8MB (4) 1M x 9 (4) 1M x 9 16MB (4) 4M x 9 NONE 20MB (4) 1M x 9 (4) 4M x 9 32MB (4) 4M x 9 (4) 4M x 9 SRAM CONFIGURATION Size Cache Location TAG(U39) TAG(U40) 64KB (8) 8K x 8 Banks 0 & 1 (1) 8K x 8 NONE 128KB (4) 32K x 8 Bank 0 (1) 8K x 8 NONE 256KB (8) 32K x 8 Banks 0 & 1 (1) 32K x 8 NONE 256KB (8) 32K x 8 Banks 0 & 1 (1) 8K x 8 (1) 8K x 8 SRAM JUMPER CONFIGURATION Size JP10 JP11 JP13 JP15 64KB pins 2 & 3 open open open closed 128KB pins 1 & 2 closed closed open closed 256KB pins 2 & 3 closed closed closed closed CPU CONFIGURATION CPU JP5 JP6 JP7 JP12 JP30 JP34 JP35 JP36 JP37 80386DX 2&3 open open open closed open N/A N/A N/A CX486DLC 2&3 closed closed open closed open N/A N/A N/A 80486SX 1&2 open open closed open closed open open 2&3 80487SX 1&2 open open closed open closed 2&3 closed 1&2 80486DX 1&2 open open closed open closed 1&2 closed 1&2 ODP487SX 1&2 open open closed open closed 2&3 closed 1&2 80486DX2 1&2 open open closed open closed 1&2 closed 1&2 Note:Pins designated should be in the closed position. CLOCK SPEED SELECT Speed JP25 JP28 JP29 JP33 25MHz pins 1 & 2 closed open pins 1 & 2 closed closed 33MHz(386/486DLC) pins 2 & 3 closed open pins 1 & 2 closed closed 33MHz(486) pins 1 & 2 open closed pins 1 & 2 closed closed 40MHz(486) pins 1 & 2 open open pins 1 & 2 closed closed 40MHz(386/486DLC) pins 2 & 3 open closed pins 1 & 2 closed closed 50iMHz pins 2 & 3 closed open pins 2 & 3 closed closed 50MHz pins 1 & 2 closed open pins 1 & 2 closed closed 66iMHz pins 2 & 3 open closed pins 2 & 3 closed closed VESA SLOT (S2 & S3) MASTER/SLAVE CONFIGURATION Jumper Master/Slave Slave only JP8 open closed JP9 open closed JP14 open closed JP19 open closed JP21 open closed JP23 pins 1 & 2 closed pins 2 & 3 closed JP24 open closed JP27 pins 1 & 2 closed pins 2 & 3 closed U29 (PAL socket) Installed N/A U38 (PAL socket) Installed N/A Note:When the Master/Slave setting is used slots S2 & S3 can use Bus-master cards or slave cards. When the Slave only setting is used non-Bus-master cards can be used.