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  | 

| 
 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 (optional)  | 
 MS2  | 
| 
 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 interface  | 
 J11  | 
 
  | 
 
  | 
| 
 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 alter  | 
 JP8  | 
 N/A  | 
| 
 »  | 
 Factory configured - do not alter  | 
 JP10  | 
 N/A  | 
| 
 »  | 
 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 alter  | 
 JP19  | 
 N/A  | 
| 
 »  | 
 Factory configured - do not alter  | 
 JP22  | 
 N/A  | 
| 
 »  | 
 Factory configured - do not alter  | 
 JP23  | 
 N/A  | 
| 
 »  | 
 Factory configured - do not alter  | 
 JP30  | 
 N/A  | 
| 
 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 closed  | 
 Open  | 
| 
 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  |