UNIDENTIFIED
PAT48PR
| 
 Processor  | 
 80486SX/80487SX/80486DX/80486DX2/Pentium Overdrive  | 
| 
 Processor Speed  | 
 20/25/33/40(internal)/50(internal)/50/66(internal)MHz  | 
| 
 Chip Set  | 
 OPTI  | 
| 
 Max. Onboard DRAM  | 
 64MB  | 
| 
 Cache  | 
 64/128/256KB  | 
| 
 BIOS  | 
 AMI  | 
| 
 Dimensions  | 
 330mm x 218mm  | 
| 
 I/O Options  | 
 32-bit VESA local bus slots (2)  | 
| 
 NPU Options  | 
 None  | 
| 
 CONNECTIONS  | |||
| 
 Purpose  | 
 Location  | 
 Purpose  | 
 Location  | 
| 
 Speaker  | 
 J1 (pins 1-4)  | 
 IDE interface LED (to case)  | 
 J1 (pins 10 & 20)  | 
| 
 Power LED & keylock  | 
 J1 (pins 11-15)  | 
 IDE interface LED (to HDD)  | 
 J2  | 
| 
 Turbo switch  | 
 J1 (pins 7 & 17)  | 
 External battery  | 
 J4  | 
| 
 Turbo LED  | 
 J1 (pins 8 & 18)  | 
 32-bit local bus slots  | 
 SL1 & SL2  | 
| 
 Reset switch  | 
 J1 (pins 9 & 19)  | ||
| 
 USER CONFIGURABLE SETTINGS  | |||
| 
 Function  | 
 Jumper  | 
 Position  | |
| 
 »  | 
 Battery type select internal  | 
 JP1  | 
 pins 2 & 3 closed  | 
| 
 Battery type select external  | 
 JP1  | 
 Open  | |
| 
 CMOS memory clear  | 
 JP1  | 
 pins 1 & 2 closed  | |
| 
 »  | 
 Monitor type select color  | 
 JP4  | 
 Closed  | 
| 
 Monitor type select monochrome  | 
 JP4  | 
 Open  | |
| 
 DRAM CONFIGURATION (GROUP A)  | ||||
| 
 Size  | 
 Bank 0  | 
 Bank 1  | 
 Bank 2  | 
 Bank 3  | 
| 
 1MB  | 
 (4) 256K x 9  | 
 NONE  | 
 NONE  | 
 NONE  | 
| 
 2MB  | 
 (4) 256K x 9  | 
 (4) 256K x 9  | 
 NONE  | 
 NONE  | 
| 
 4MB  | 
 (4) 1M x 9  | 
 NONE  | 
 NONE  | 
 NONE  | 
| 
 5MB  | 
 (4) 256K x 9  | 
 (4) 1M x 9  | 
 NONE  | 
 NONE  | 
| 
 6MB  | 
 (4) 256K x 9  | 
 (4) 256K x 9  | 
 (1) 1M x 36  | 
 NONE  | 
| 
 8MB  | 
 (4) 1M x 9  | 
 (4) 1M x 9  | 
 NONE  | 
 NONE  | 
| 
 9MB  | 
 (4) 256K x 9  | 
 (4) 1M x 9  | 
 (1) 1M x 36  | 
 NONE  | 
| 
 10MB  | 
 (4) 256K x 9  | 
 (4) 256K x 9  | 
 (1) 1M x 36  | 
 (1) 1M x 36  | 
| 
 12MB  | 
 (4) 1M x 9  | 
 (4) 1M x 9  | 
 (1) 1M x 36  | 
 NONE  | 
| 
 13MB  | 
 (4) 256K x 9  | 
 (4) 1M x 9  | 
 (1) 1M x 36  | 
 (1) 1M x 36  | 
| 
 16MB  | 
 (4) 1M x 9  | 
 (4) 1M x 9  | 
 (1) 1M x 36  | 
 (1) 1M x 36  | 
| 
 16MB  | 
 (4) 4M x 9  | 
 NONE  | 
 NONE  | 
 NONE  | 
| 
 20MB  | 
 (4) 1M x 9  | 
 (4) 4M x 9  | 
 NONE  | 
 NONE  | 
| 
 20MB  | 
 (4) 4M x 9  | 
 (4) 1M x 9  | 
 NONE  | 
 NONE  | 
| 
 24MB  | 
 (4) 1M x 9  | 
 (4) 4M x 9  | 
 (1) 1M x 36  | 
 NONE  | 
| 
 24MB  | 
 (4) 4M x 9  | 
 (4) 1M x 9  | 
 (1) 1M x 36  | 
 NONE  | 
| 
 28MB  | 
 (4) 1M x 9  | 
 (4) 4M x 9  | 
 (1) 1M x 36  | 
 (1) 1M x 36  | 
| 
 28MB  | 
 (4) 4M x 9  | 
 (4) 1M x 9  | 
 (1) 1M x 36  | 
 (1) 1M x 36  | 
| 
 32MB  | 
 (4) 4M x 9  | 
 (4) 4M x 9  | 
 NONE  | 
 NONE  | 
| 
 36MB  | 
 (4) 4M x 9  | 
 (4) 4M x 9  | 
 (1) 1M x 36  | 
 NONE  | 
| 
 40MB  | 
 (4) 4M x 9  | 
 (4) 4M x 9  | 
 (1) 1M x 36  | 
 (1) 1M x 36  | 
| 
 48MB  | 
 (4) 4M x 9  | 
 (4) 4M x 9  | 
 (1) 4M x 36  | 
 NONE  | 
| 
 52MB  | 
 (4) 4M x 9  | 
 (4) 4M x 9  | 
 (1) 4M x 36  | 
 (1) 1M x 36  | 
| 
 52MB  | 
 (4) 4M x 9  | 
 (4) 1M x 9  | 
 (1) 4M x 36  | 
 (1) 4M x 36  | 
| 
 64MB  | 
 (4) 4M x 9  | 
 (4) 4M x 9  | 
 (1) 4M x 36  | 
 (1) 4M x 36  | 
| 
 Note: Group A -- 30-pin SIMMS = Banks 0 & 1 and 72-pin SIMMS = 2 & 3.  | ||||
| 
 DRAM CONFIGURATION (GROUP B)  | ||||
| 
 Size  | 
 Bank 0  | 
 Bank 1  | 
 Bank 2  | 
 Bank 3  | 
| 
 4MB  | 
 (1) 1M x 36  | 
 NONE  | 
 NONE  | 
 NONE  | 
| 
 8MB  | 
 (1) 1M x 36  | 
 (1) 1M x 36  | 
 NONE  | 
 NONE  | 
| 
 12MB  | 
 (1) 1M x 36  | 
 (1) 1M x 36  | 
 (4) 1M x 9  | 
 NONE  | 
| 
 16MB  | 
 (1) 1M x 36  | 
 (1) 1M x 36  | 
 (4) 1M x 9  | 
 (4) 1M x 9  | 
| 
 16MB  | 
 (1) 4M x 36  | 
 NONE  | 
 NONE  | 
 NONE  | 
| 
 20MB  | 
 (1) 4M x 36  | 
 (1) 1M x 36  | 
 NONE  | 
 NONE  | 
| 
 24MB  | 
 (1) 4M x 36  | 
 (1) 1M x 36  | 
 (4) 1M x 9  | 
 NONE  | 
| 
 24MB  | 
 (1) 1M x 36  | 
 (1) 1M x 36  | 
 (4) 4M x 9  | 
 NONE  | 
| 
 28MB  | 
 (1) 1M x 36  | 
 (1) 1M x 36  | 
 (4) 4M x 9  | 
 (4) 1M x 9  | 
| 
 28MB  | 
 (1) 4M x 36  | 
 (1) 1M x 36  | 
 (4) 1M x 9  | 
 (4) 1M x 9  | 
| 
 32MB  | 
 (1) 4M x 36  | 
 (1) 4M x 36  | 
 NONE  | 
 NONE  | 
| 
 36MB  | 
 (1) 4M x 36  | 
 (1) 1M x 36  | 
 (4) 4M x 9  | 
 NONE  | 
| 
 40MB  | 
 (1) 1M x 36  | 
 (1) 1M x 36  | 
 (4) 4M x 9  | 
 (4) 4M x 9  | 
| 
 40MB  | 
 (1) 4M x 36  | 
 (1) 4M x 36  | 
 (4) 1M x 9  | 
 (4) 1M x 9  | 
| 
 48MB  | 
 (1) 4M x 36  | 
 (1) 4M x 36  | 
 (4) 4M x 9  | 
 NONE  | 
| 
 52MB  | 
 (1) 4M x 36  | 
 (1) 4M x 36  | 
 (4) 4M x 9  | 
 (4) 1M x 9  | 
| 
 52MB  | 
 (1) 4M x 36  | 
 (1) 1M x 36  | 
 (4) 4M x 9  | 
 (4) 4M x 9  | 
| 
 64MB  | 
 (1) 4M x 36  | 
 (1) 4M x 36  | 
 (4) 4M x 9  | 
 (4) 4M x 9  | 
| 
 Note: Group B -- = 72-pin SIMMS Banks 0 & 1 and 30-pin SIMMS = 2 & 3.  | ||||
| 
 DRAM CONFIGURATION (GROUP C)  | ||
| 
 Size  | 
 Bank 0  | 
 Bank 1  | 
| 
 4MB  | 
 (1) 1M x 36  | 
 NONE  | 
| 
 8MB  | 
 (1) 2M x 36  | 
 (1) 1M x 36  | 
| 
 12MB  | 
 (1) 2M x 36  | 
 (1) 1M x 36  | 
| 
 16MB  | 
 (1) 2M x 36  | 
 (1) 2M x 36  | 
| 
 16MB  | 
 (1) 4M x 36  | 
 NONE  | 
| 
 24MB  | 
 (1) 2M x 36  | 
 (1) 4M x 36  | 
| 
 32MB  | 
 (1) 8M x 36  | 
 NONE  | 
| 
 40MB  | 
 (1) 2M x 36  | 
 (1) 8M x 36  | 
| 
 40MB  | 
 (1) 8M x 36  | 
 (1) 2M x 36  | 
| 
 48MB  | 
 (1) 8M x 36  | 
 (1) 4M x 36  | 
| 
 64MB  | 
 (1) 8M x 36  | 
 (1) 8M x 36  | 
| 
 Note: Group C -- = 72-pin SIMMS Banks 0 & 1.  | ||
| 
 DRAM TYPE CONFIGURATION  | |||
| 
 Group  | 
 RNB1/2  | 
 RNC1/2  | 
 RND1/2  | 
| 
 Group A  | 
 Not installed  | 
 Installed  | 
 Not installed  | 
| 
 Group B  | 
 Not installed  | 
 Not installed  | 
 Installed  | 
| 
 Group C  | 
 Installed  | 
 Not installed  | 
 Not installed  | 
| 
 CACHE CONFIGURATION  | ||||
| 
 Size  | 
 Bank 0  | 
 Bank 1  | 
 TAG (U43)  | 
 TAG (U44)  | 
| 
 64KB  | 
 (4) 8K x 8  | 
 (4) 8K x 8  | 
 (1) 8K x 8  | 
 (1) 64K x 1  | 
| 
 128KB  | 
 (4) 32K x 8  | 
 NONE  | 
 (1) 8K x 8  | 
 (1) 64K x 1  | 
| 
 256KB  | 
 (4) 32K x 8  | 
 (4) 32K x 8  | 
 (1) 32K x 8  | 
 (1) 64K x 1  | 
| 
 CACHE JUMPER CONFIGURATION  | |||
| 
 Size  | 
 RND  | 
 RNE  | 
 RNF  | 
| 
 64KB  | 
 Installed  | 
 Not installed  | 
 Not installed  | 
| 
 128KB  | 
 Not installed  | 
 Installed  | 
 Not installed  | 
| 
 256KB  | 
 Not installed  | 
 Not installed  | 
 Installed  | 
| 
 CPU TYPE CONFIGURATION  | |||
| 
 Type  | 
 RNA3  | 
 RNB3  | 
 RNC3  | 
| 
 80486SX  | 
 Not installed  | 
 Not installed  | 
 Installed  | 
| 
 80487SX  | 
 Not installed  | 
 Installed  | 
 Not installed  | 
| 
 80486DX/DX2  | 
 Installed  | 
 Not installed  | 
 Not installed  | 
| 
 Pentium Overdrive  | 
 Not installed  | 
 Installed  | 
 Not installed  | 
| 
 CPU SPEED CONFIGURATION  | |||||
| 
 Speed  | 
 JP2  | 
 W13  | 
 W14  | 
 W15  | 
 W16  | 
| 
 20MHz  | 
 pins 2 & 3 closed  | 
 Open  | 
 Closed  | 
 Open  | 
 Open  | 
| 
 25MHz  | 
 pins 2 & 3 closed  | 
 Open  | 
 Open  | 
 Closed  | 
 Open  | 
| 
 33MHz  | 
 pins 2 & 3 closed  | 
 Open  | 
 Open  | 
 Open  | 
 Closed  | 
| 
 40iMHz  | 
 pins 2 & 3 closed  | 
 Open  | 
 Closed  | 
 Open  | 
 Open  | 
| 
 50iMHz  | 
 pins 2 & 3 closed  | 
 Open  | 
 Open  | 
 Closed  | 
 Open  | 
| 
 50MHz  | 
 pins 1 & 2 closed  | 
 Open  | 
 Open  | 
 Closed  | 
 Open  | 
| 
 66iMHz  | 
 pins 2 & 3 closed  | 
 Open  | 
 Open  | 
 Open  | 
 Closed  | 
| 
 BUS SPEED CONFIGURATION  | |||
| 
 CPU type  | 
 JP3  | 
 JP5  | 
 JP6  | 
| 
 80486DX-50  | 
 Closed  | 
 Closed  | 
 Closed  | 
| 
 All other CPU  | 
 Open  | 
 Open  | 
 Open  | 
| 
 VESA WAIT STATE CONFIGURATION  | ||||
| 
 CPU type  | 
 VLB cards installed  | 
 W21  | 
 W22  | 
 W23  | 
| 
 80486DX-50  | 
 1  | 
 pin 1 on W21 & pin 1 on W22 closed  | 
 pins 2 & 3 closed  | |
| 
 All other CPU  | 
 2  | 
 Closed  | 
 Closed  | 
 pins 1 & 2 closed  |