IBM CORPORATION
486SLC2 VESA
| 
 Processor  | 
 486SLC2  | 
| 
 Processor Speed  | 
 50(internal)/66(internal)MHz  | 
| 
 Chip Set  | 
 Unidentified  | 
| 
 Video Chip Set  | 
 None  | 
| 
 Maximum Onboard Memory  | 
 16MB  | 
| 
 Maximum Video Memory  | 
 None  | 
| 
 Cache  | 
 64/128/256KB  | 
| 
 BIOS  | 
 Award  | 
| 
 Dimensions  | 
 254mm x 218mm  | 
| 
 I/O Options  | 
 32-bit VESA local bus slots (3)  | 
| 
 NPU Options  | 
 80387SX  | 
| 
 CONNECTIONS  | |||
| 
 Purpose  | 
 Location  | 
 Purpose  | 
 Location  | 
| 
 External battery  | 
 J4  | 
 Speaker  | 
 J8  | 
| 
 Turbo LED  | 
 J5  | 
 Power LED & keylock  | 
 J9  | 
| 
 Turbo switch  | 
 J6  | 
 Chassis fan power  | 
 JP9  | 
| 
 Reset switch  | 
 J7  | 
 32-bit VESA local bus slots  | 
 SL1 – SL3  | 
| 
 USER CONFIGURABLE SETTINGS  | |||
| 
 Function  | 
 Label  | 
 Position  | |
| 
 »  | 
 Monitor type select color/EGA/VGA  | 
 JP10  | 
 Closed  | 
| 
 Monitor type select monochrome  | 
 JP10  | 
 Open  | |
| 
 Battery type select internal  | 
 JP11  | 
 Pins 2 & 3 closed  | |
| 
 Battery type select external  | 
 JP11  | 
 Pins 1 & 2 closed  | |
| 
 »  | 
 CPU memory read/write delay enabled  | 
 JP700  | 
 Pins 1 & 2 closed  | 
| 
 CPU memory read/write delay disabled  | 
 JP700  | 
 Pins 2 & 3 closed  | |
| 
 SIMM 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  | 
| 
 8MB  | 
 (4) 1M x 9  | 
 (4) 1M x 9  | 
| 
 16MB  | 
 (4) 4M x 9  | 
 None  | 
| 
 CACHE CONFIGURATION  | |||
| 
 Size  | 
 Bank 0  | 
 Bank 1  | 
 TAG  | 
| 
 64KB  | 
 (4) 8K x 8  | 
 (4) 8K x 8  | 
 (1) 8K x 8  | 
| 
 128KB  | 
 (4) 32K x 8  | 
 None  | 
 (1) 32K x 8  | 
| 
 256KB  | 
 (4) 32K x 8  | 
 (4) 32K x 8  | 
 (1) 32K x 8  | 
| 
 CACHE JUMPER CONFIGURATION  | |||||
| 
 Size  | 
 JP12  | 
 JP13  | 
 JP14  | 
 JP15  | 
 JP16  | 
| 
 64KB  | 
 2 & 3  | 
 2 & 3  | 
 2 & 3  | 
 2 & 3  | 
 2 & 3  | 
| 
 128KB  | 
 1 & 2  | 
 1 & 2  | 
 1 & 2  | 
 1 & 2  | 
 1 & 2  | 
| 
 256KB  | 
 2 & 3  | 
 2 & 3  | 
 2 & 3  | 
 2 & 3  | 
 2 & 3  | 
| 
 Note: Pins designated should be in the closed position.  | |||||
| 
 CACHE JUMPER CONFIGURATION (CON’T)  | ||||
| 
 Size  | 
 JP11  | 
 JP17  | 
 JP702  | 
 JP703  | 
| 
 64KB  | 
 Open  | 
 Open  | 
 Open  | 
 Open  | 
| 
 128KB  | 
 Closed  | 
 Open  | 
 Closed  | 
 Closed  | 
| 
 256KB  | 
 Open  | 
 Closed  | 
 Closed  | 
 Closed  | 
| 
 CPU SPEED SELECTION  | ||||||
| 
 Speed  | 
 JP1  | 
 JP2  | 
 JP3  | 
 JP4  | 
 JP5  | 
 JP704  | 
| 
 50iMHz  | 
 Closed  | 
 Open  | 
 Open  | 
 Closed  | 
 2 & 3  | 
 1 & 2  | 
| 
 66iMHz  | 
 Closed  | 
 Closed  | 
 Open  | 
 Open  | 
 2 & 3  | 
 1 & 2  | 
| 
 Note: Pins designated should be in the closed position.  | ||||||
| 
 CPU ADS DELAY SELECTION  | |||
| 
 Setting  | 
 JP201  | 
 JP701  | |
| » | 
 Enabled  | 
 Closed  | 
 Pins 1 & 2 closed  | 
| 
 Disabled  | 
 Open  | 
 Pins 2 & 3 closed  | |
| 
 VL BUS WAIT STATE SELECTION  | ||
| 
 Setting  | 
 JP18  | |
| » | 
 0  | 
 Pins 1 & 2 closed  | 
| 
 1  | 
 Pins 2 & 3 closed  | |
| 
 VL BUS SPEED SELECTION  | |
| 
 Speed  | 
 JP19  | 
| 
 <= 33MHz  | 
 Pins 1 & 2 closed  | 
| 
 >33 MHz  | 
 Pins 2 & 3 closed  | 
| 
 LOCAL BUS CLOCK DELAY SELECTION  | |||
| 
 Setting  | 
 JP7  | 
 JP8  | |
| » | 
 No delay  | 
 Pins 1 & 2 closed  | 
 Pins 1 & 2 closed  | 
| 
 One gate delay  | 
 Pins 2 & 3 closed  | 
 Pins 2 & 3 closed  | |