IBM CORPORATION
OPAL 486SLC2 REV C
| 
 Processor  | 
 CX486SLC2  | 
| 
 Processor Speed  | 
 50(internal)/66(internal)MHz  | 
| 
 Chip Set  | 
 IBM  | 
| 
 Max. Onboard DRAM  | 
 16MB  | 
| 
 Cache  | 
 64/128KB  | 
| 
 BIOS  | 
 AMI/MR  | 
| 
 Dimensions  | 
 254mm x 218mm  | 
| 
 I/O Options  | 
 32-bit VESA local bus slots (2)  | 
| 
 NPU Options  | 
 80387SX  | 
| 
 CONNECTIONS  | |||
| 
 Purpose  | 
 Location  | 
 Purpose  | 
 Location  | 
| 
 Reset switch  | 
 J1  | 
 Turbo switch  | 
 J4  | 
| 
 Speaker  | 
 J2  | 
 External battery  | 
 J25  | 
| 
 Power LED & keylock  | 
 J3  | 
 32-bit VESA local bus slots  | 
 SL1 & SL2  | 
| 
 USER CONFIGURABLE SETTINGS  | |||
| 
 Function  | 
 Jumper  | 
 Position  | |
| 
 »  | 
 CMOS memory normal operation  | 
 JP9  | 
 pins 2 & 3 closed  | 
| 
 CMOS memory clear  | 
 JP9  | 
 pins 1 & 2 closed  | |
| 
 »  | 
 Password enabled(MR BIOS only)  | 
 JP10  | 
 Closed  | 
| 
 Password disabled (MR BIOS only)  | 
 JP10  | 
 Open  | |
| 
 DRAM CONFIGURATION  | ||
| 
 Size  | 
 Bank 0  | 
 Bank 1  | 
| 
 512KB  | 
 (2) 256K x 9  | 
 NONE  | 
| 
 1MB  | 
 (2) 256K x 9  | 
 (2) 256K x 9  | 
| 
 2MB  | 
 (2) 1M x 9  | 
 NONE  | 
| 
 4MB  | 
 (2) 1M x 9  | 
 (2) 1M x 9  | 
| 
 8MB  | 
 (2) 4M x 9  | 
 NONE  | 
| 
 10MB  | 
 (2) 1M x 9  | 
 (2) 4M x 9  | 
| 
 16MB  | 
 (2) 4M x 9  | 
 (2) 4M x 9  | 
| 
 CACHE CONFIGURATION  | |||
| 
 Size  | 
 Bank 0  | 
 Bank 1  | 
 TAG  | 
| 
 64KB  | 
 (2) 32K x 8  | 
 NONE  | 
 (1) 8K x 8  | 
| 
 128KB  | 
 (2) 32K x 8  | 
 (2) 32K x 8  | 
 (1) 32K x 8  | 
| 
 CACHE JUMPER CONFIGURATION  | |
| 
 Size  | 
 JP6  | 
| 
 64KB  | 
 pins 2 & 3 closed  | 
| 
 128KB  | 
 pins 1 & 2 closed  | 
| 
 CPU SPEED CONFIGURATION  | ||
| 
 Speed  | 
 JP7  | 
 JP8  | 
| 
 50iMHz  | 
 Open  | 
 Closed  | 
| 
 66iMHz  | 
 Closed  | 
 Open  | 
| 
 BUS SPEED CONFIGURATION  | |
| 
 CPU speed  | 
 JP5  | 
| 
 <=33MHz  | 
 Open  | 
| 
 >33MHz  | 
 Closed  | 
| 
 VESA ID CONFIGURATION  | ||||
| 
 ID  | 
 JP1  | 
 JP2  | 
 JP3  | 
 JP4  | 
| 
 ID0  | 
 Open  | 
 Open  | 
 Open  | 
 Closed  | 
| 
 ID1  | 
 Closed  | 
 Closed  | 
 Open  | 
 Closed  | 
| 
 ID2  | 
 Closed  | 
 Open  | 
 Closed  | 
 Closed  | 
| 
 ID3  | 
 Open  | 
 Closed  | 
 Closed  | 
 Closed  |