ATC/UNITRON COMPUTER & COMPUTER PARTS U 6983 Processor Pentium Processor Speed 75/90/100/120/133/150MHz Chip Set Unidentified Max. Onboard DRAM 256MB Cache 256/512/1024KB BIOS Award Dimensions 330mm x 218mm I/O Options 32-bit PCI slots (4), floppy drive interface, green PC connector, IDE interfaces (2), parallel port, PS/2 mouse interface, serial ports (2), cache slot NPU Options None [Image] CONNECTIONS Purpose Location Purpose Location Turbo LED J1 Parallel port J12 Turbo switch J2 Serial port 2 J13 Reset switch J3 IDE interface LED 2 J14 Speaker J4 IDE interface LED 1 J15 Power LED & keylock J5 IR connector JP32 Green PC connector J6 PS/2 mouse interface MS2 (optional) IDE interface 2 J7 32-bit PCI slots PC1 - PC4 IDE interface 1 J8 Chassis fan power PS1 Serial port 1 J10 Cache slot SL1 Floppy drive J11 interface USER CONFIGURABLE SETTINGS Function Jumper Position » CMOS memory normal operation JP5 pins 1 & 2 closed CMOS memory clear JP5 pins 2 & 3 closed » Factory configured - do not JP8 N/A alter » Factory configured - do not JP10 N/A alter » BIOS type select EPROM JP13 Open BIOS type select 5v flash JP13 pins 1 & 2 closed BIOS type select 12v flash JP13 pins 2 & 3 closed » Factory configured - do not JP19 N/A alter » Factory configured - do not JP22 N/A alter » Factory configured - do not JP23 N/A alter » Factory configured - do not JP30 N/A alter DRAM CONFIGURATION Size Bank 0/0A Bank 1 1MB* (1) 256K x 36 NONE 2MB* (1) 512K x 36 NONE 4MB* (1) 1M x 36 NONE 8MB* (1) 2M x 36 NONE 16MB* (1) 4M x 36 NONE 32MB* (1) 8M x 36 NONE 64MB* (1) 16M x 36 NONE 2MB (2) 256K x 36 NONE 4MB (2) 512K x 36 NONE 4MB (2) 256K x 36 (2) 256K x 36 6MB (2) 512K x 36 (2) 256K x 36 6MB (2) 256K x 36 (2) 512K x 36 8MB (2) 1M x 36 NONE 8MB (2) 512K x 36 (2) 512K x 36 10MB (2) 1M x 36 (2) 256K x 36 10MB (2) 256K x 36 (2) 1M x 36 DRAM CONFIGURATION (CON'T) Size Bank 0/0A Bank 1 12MB (2) 1M x 36 (2) 512K x 36 12MB (2) 512K x 36 (2) 1M x 36 16MB (2) 2M x 36 NONE 16MB (2) 1M x 36 (2) 1M x 36 18MB (2) 2M x 36 (2) 256K x 36 18MB (2) 256K x 36 (2) 2M x 36 20MB (2) 2M x 36 (2) 512K x 36 20MB (2) 512K x 36 (2) 2M x 36 24MB (2) 2M x 36 (2) 1M x 36 24MB (2) 1M x 36 (2) 2M x 36 32MB (2) 4M x 36 NONE 32MB (2) 2M x 36 (2) 2M x 36 34MB (2) 4M x 36 (2) 256K x 36 34MB (2) 256K x 36 (2) 4M x 36 36MB (2) 4M x 36 (2) 512K x 36 36MB (2) 512K x 36 (2) 4M x 36 40MB (2) 4M x 36 (2) 1M x 36 40MB (2) 1M x 36 (2) 4M x 36 48MB (2) 4M x 36 (2) 2M x 36 48MB (2) 2M x 36 (2) 4M x 36 64MB (2) 8M x 36 NONE 64MB (2) 4M x 36 (2) 4M x 36 66MB (2) 8M x 36 (2) 256K x 36 66MB (2) 256K x 36 (2) 8M x 36 68MB (2) 8M x 36 (2) 512K x 36 68MB (2) 512K x 36 (2) 8M x 36 72MB (2) 8M x 36 (2) 1M x 36 72MB (2) 1M x 36 (2) 8M x 36 80MB (2) 8M x 36 (2) 2M x 36 80MB (2) 2M x 36 (2) 8M x 36 96MB (2) 8M x 36 (2) 4M x 36 96MB (2) 4M x 36 (2) 8M x 36 128MB (2) 8M x 36 (2) 8M x 36 128MB (2) 16M x 36 NONE 130MB (2) 16M x 36 (2) 256K x 36 132MB (2) 16M x 36 (2) 512K x 36 136MB (2) 16M x 36 (2) 1M x 36 144MB (2) 16M x 36 (2) 2M x 36 160MB (2) 16M x 36 (2) 4M x 36 192MB (2) 16M x 36 (2) 8M x 36 256MB (2) 16M x 36 (2) 16M x 36 Note: Sizes with an * present use only Bank 0A. CACHE CONFIGURATION Size Bank 0 TAG SL1 256KB (A) (8) 32K x 8 (1) 16K x 8 Not installed 256KB (B) NONE NONE Installed 512KB (A) (8) 64K x 8 (1) 16K x 8 Not installed 512KB (B) NONE NONE Installed 1MB (8) 128K x 8 (1) 32K x 8 Not installed CACHE JUMPER CONFIGURATION Size JP8 JP10 256KB pins 1 & 2 closed pins 2 & 3 closed 512KB pins 1 & 2, 3 & 4 Open closed 1MB pins 2 & 3 closed pins 1 & 2 closed Note: If SL1 is used, these jumpers are ignored. CPU SPEED CONFIGURATION Speed JP16 75MHz Open 90MHz pins 1 & 2 closed 100MHz pins 1 & 2, 3 & 4 closed 120MHz pins 1 & 2 closed 133MHz pins 1 & 2, 3 & 4 closed 150MHz pins 1 & 2 closed CPU SPEED CONFIGURATION Speed JP9 JP12 1.5x Open Open 2x Closed Open 2.5x Closed Closed CPU VOLTAGE CONFIGURATION Voltage JP17 » 3.3v pins 1 & 2 closed » 3.4v pins 2 & 3 closed » 3.55v pins 4 & 5 closed DMA CONFIGURATION DMA JP29 DMA 1 pins 1 & 3, 2 & 4 closed DMA 3 pins 3 & 5, 4 & 6 closed