DIAMOND MULTIMEDIA SYSTEMS, INC. FASTBUS VLB Processor 80386DX/80486SX/80487SX/80486DX/80486DX2 Processor Speed 25/33/40/50 (internal)/50/66(internal) MHz Chip Set C & T Max. onboard 128MB DRAM Cache 64/256KB BIOS C & T Dimensions 330mm x 218mm I/O Options 32-bit VESA local bus slots (2), floppy drive interface, IDE interface, parallel port, serial ports (2) NPU Options 4167 [Image] CONNECTIONS Purpose Location Purpose Location External battery BAT1 Reset switch CN7 Parallel port CN1 Speaker CN8 Serial port (COM1) CN2 Turbo switch CN9 Serial port (COM2) CN3 IDE interface LED CN10 IDE interface CN4 Power LED & keylock CN11 Floppy drive CN5 32-bit VESA local bus S1 interface slot Turbo LED CN6 32-bit VESA local bus S2 slot USER CONFIGURABLE SETTINGS Function Jumper/Switch Position » Onboard I/O controller J23 Closed enabled Onboard I/O controller J23 Open disabled » CMOS memory normal operation JCOM pins 2 & 3 closed CMOS memory clear JCOM pins 1 & 2 closed » Factory configured - do not SW1/7 Off alter » Factory configured - do not SW1/8 Off alter DRAM CONFIGURATION Size Bank 0 Bank 1 Bank 2 Bank 3 16MB (1) 4M x 36 NONE NONE NONE 32MB (1) 4M x 36 (1) 4M x 36 NONE NONE 32MB (1) 8M x 36 NONE NONE NONE 64MB (1) 4M x 36 (1) 4M x 36 (1) 4M x 36 (1) 4M x 36 64MB (1) 8M x 36 (1) 8M x 36 NONE NONE 128MB (1) 8M x 36 (1) 8M x 36 (1) 8M x 36 (1) 8M x 36 CACHE CONFIGURATION Size S3 JTAG1 JTAG2 64KB 64KB module Installed Not installed 128KB 256KB module Not installed Installed VESA CPU TYPE (ID0 & ID1) CONFIGURATION CPU Type SW1/switch 1 (ID0) SW1/2 (ID1) 80386 On Off 80486 Off On VESA WAIT STATE (ID2) CONFIGURATION Wait states CPU speed SW1/3(ID2) 0 wait states <=33MHz Off 1 wait state >33MHz On VESA BUS SPEED (ID3) CONFIGURATION CPU speed SW1/4 (ID3) <=33MHz Off >33MHz On VESA ID4 CONFIGURATION Setting SW1/5 (ID4) Reserved for future use On CPU TYPE CONFIGURATION TYPE JCALA JNMI JFERR JIGN JCLK JCLK2 AMD386 pins 1 Open pins 2 pins 2 pins 2 pins 2 & & 2 & 3 & 3 & 3 3 80486SX pins 2 Open pins 2 pins 2 pins 1 pins 1 & & 3 & 3 & 3 & 2 2 80487SX pins 2 Closed pins 1 pins 1 pins 1 pins 1 & & 3 & 2 & 2 & 2 2 80486DX pins 2 Closed pins 2 pins 1 pins 1 pins 1 & & 3 & 3 & 2 & 2 2 80486DX2 pins 2 Closed pins 2 pins 1 pins 1 pins 1 & & 3 & 3 & 2 & 2 2 Note:AMD386 is a CPU module available from the manufacturer CPU SPEED CONFIGURATION TYPE Speed SW2/6 AMD386 40MHz On 80486SX 25MHz On 80486SX 33MHz Off 80487SX 25MHz On 80487SX 33MHz Off 80486DX 25MHz On 80486DX 33MHz Off 80486DX 50MHz Off 80486DX2 50i MHz On 80486DX2 66i MHz Off