AST RESEARCH, INC.
BRAVO MS, MS-T, MS-L PENTIUM (RATTLER) (202653-XXX)
| 
 Processor  | 
 Pentium  | 
| 
 Processor Speed  | 
 60/66/90/100MHz  | 
| 
 Chip Set  | 
 AST  | 
| 
 Max. Onboard DRAM  | 
 128MB  | 
| 
 Cache  | 
 512KB  | 
| 
 BIOS  | 
 AMI  | 
| 
 Dimensions  | 
 330mm x 218mm  | 
| 
 I/O Options  | 
 Floppy drive interface, IDE interfaces (2), parallel port, serial ports (2), PS/2 mouse port, VGA feature connector, VGA port  | 
| 
 NPU Options  | 
 None  | 
| 
 CONNECTIONS  | |||
| 
 Purpose  | 
 Location  | 
 Purpose  | 
 Location  | 
| 
 VGA port  | 
 CN1  | 
 Floppy drive interface  | 
 J24  | 
| 
 Parallel port  | 
 CN2  | 
 Speaker  | 
 J27  | 
| 
 Serial port 2  | 
 CN3  | 
 Chassis fan power  | 
 J28  | 
| 
 Serial port 1  | 
 CN4  | 
 Front panel connector  | 
 J29  | 
| 
 PS/2 mouse port  | 
 CN5  | 
 Power LED & keylock  | 
 J32  | 
| 
 VGA feature connector  | 
 J19  | 
 IDE interface LED  | 
 J40  | 
| 
 IDE interface 2  | 
 J22  | 
 Video memory upgrade slot  | 
 SL1  | 
| 
 IDE interface 1  | 
 J23  | 
 Riser Card  | 
 SL2  | 
| 
 USER CONFIGURABLE SETTINGS  | |||
| 
 Function  | 
 Jumper  | 
 Position  | |
| 
 »  | 
 Factory configured - do not alter  | 
 E4  | 
 Open  | 
| 
 »  | 
 Factory configured - do not alter  | 
 E5  | 
 Open  | 
| 
 »  | 
 Factory configured - do not alter  | 
 E6  | 
 Open  | 
| 
 »  | 
 Factory configured - do not alter  | 
 E8  | 
 Open  | 
| 
 »  | 
 Monitor type select color  | 
 E9  | 
 Closed  | 
| 
 Monitor type select monochrome  | 
 E9  | 
 Open  | |
| 
 »  | 
 System setup enabled  | 
 E10  | 
 Closed  | 
| 
 System setup disabled  | 
 E10  | 
 Open  | |
| 
 »  | 
 On board video enabled  | 
 E11  | 
 Closed  | 
| 
 On board video disabled  | 
 E11  | 
 Open  | |
| 
 »  | 
 Password enabled  | 
 E12  | 
 Closed  | 
| 
 Password disabled  | 
 E12  | 
 Open  | |
| 
 »  | 
 Flash BIOS write protect enabled  | 
 E13  | 
 Closed  | 
| 
 Flash BIOS write protect disabled  | 
 E13  | 
 Open  | |
| 
 »  | 
 CMOS memory normal operation  | 
 J26  | 
 Closed  | 
| 
 CMOS memory clear  | 
 J26  | 
 Open  | |
| 
 DRAM CONFIGURATION  | ||||
| 
 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  | 
| 
 8MB  | 
 (1) 2M x 36  | 
 NONE  | 
 NONE  | 
 NONE  | 
| 
 9MB  | 
 (1) 1M x 36  | 
 (1) 1M x 36  | 
 (1) 256K x 36  | 
 NONE  | 
| 
 10MB  | 
 (1) 1M x 36  | 
 (1) 1M x 36  | 
 (1) 256K x 36  | 
 (1) 256K x 36  | 
| 
 12MB  | 
 (1) 1M x 36  | 
 (1) 1M x 36  | 
 (1) 1M x 36  | 
 NONE  | 
| 
 16MB  | 
 (1) 1M x 36  | 
 (1) 1M x 36  | 
 (1) 1M x 36  | 
 (1) 1M x 36  | 
| 
 16MB  | 
 (1) 4M x 36  | 
 NONE  | 
 NONE  | 
 NONE  | 
| 
 17MB  | 
 (1) 4M x 36  | 
 (1) 1M x 36  | 
 NONE  | 
 NONE  | 
| 
 18MB  | 
 (1) 2M x 36  | 
 (1) 2M x 36  | 
 (1) 256K x 36  | 
 (1) 256K x 36  | 
| 
 20MB  | 
 (1) 2M x 36  | 
 (1) 2M x 36  | 
 (1) 1M x 36  | 
 NONE  | 
| 
 24MB  | 
 (1) 2M x 36  | 
 (1) 2M x 36  | 
 (1) 1M x 36  | 
 (1) 1M x 36  | 
| 
 24MB  | 
 (1) 2M x 36  | 
 (1) 2M x 36  | 
 (1) 2M x 36  | 
 NONE  | 
| 
 32MB  | 
 (1) 2M x 36  | 
 (1) 2M x 36  | 
 (1) 2M x 36  | 
 (1) 2M x 36  | 
| 
 32MB  | 
 (1) 4M x 36  | 
 (1) 4M x 36  | 
 NONE  | 
 NONE  | 
| 
 32MB  | 
 (1) 8M x 36  | 
 NONE  | 
 NONE  | 
 NONE  | 
| 
 33MB  | 
 (1) 4M x 36  | 
 (1) 4M x 36  | 
 (1) 256K x 36  | 
 NONE  | 
| 
 34MB  | 
 (1) 4M x 36  | 
 (1) 4M x 36  | 
 (1) 256K x 36  | 
 (1) 256K x 36  | 
| 
 36MB  | 
 (1) 4M x 36  | 
 (1) 4M x 36  | 
 (1) 1M x 36  | 
 NONE  | 
| 
 40MB  | 
 (1) 4M x 36  | 
 (1) 4M x 36  | 
 (1) 1M x 36  | 
 (1) 1M x 36  | 
| 
 40MB  | 
 (1) 4M x 36  | 
 (1) 4M x 36  | 
 (1) 2M x 36  | 
 NONE  | 
| 
 48MB  | 
 (1) 4M x 36  | 
 (1) 4M x 36  | 
 (1) 2M x 36  | 
 (1) 2M x 36  | 
| 
 48MB  | 
 (1) 4M x 36  | 
 (1) 4M x 36  | 
 (1) 4M x 36  | 
 NONE  | 
| 
 64MB  | 
 (1) 4M x 36  | 
 (1) 4M x 36  | 
 (1) 4M x 36  | 
 (1) 4M x 36  | 
| 
 64MB  | 
 (1) 8M x 36  | 
 (1) 8M x 36  | 
 NONE  | 
 NONE  | 
| 
 DRAM CONFIGURATION (CON’T)  | ||||
| 
 Size  | 
 Bank 0  | 
 Bank 1  | 
 Bank 2  | 
 Bank 3  | 
| 
 66MB  | 
 (1) 8M x 36  | 
 (1) 8M x 36  | 
 (1) 256K x 36  | 
 (1) 256K x 36  | 
| 
 68MB  | 
 (1) 8M x 36  | 
 (1) 8M x 36  | 
 (1) 1M x 36  | 
 NONE  | 
| 
 72MB  | 
 (1) 8M x 36  | 
 (1) 8M x 36  | 
 (1) 1M x 36  | 
 (1) 1M x 36  | 
| 
 72MB  | 
 (1) 8M x 36  | 
 (1) 8M x 36  | 
 (1) 2M x 36  | 
 NONE  | 
| 
 80MB  | 
 (1) 8M x 36  | 
 (1) 8M x 36  | 
 (1) 2M x 36  | 
 (1) 2M x 36  | 
| 
 80MB  | 
 (1) 8M x 36  | 
 (1) 8M x 36  | 
 (1) 4M x 36  | 
 NONE  | 
| 
 96MB  | 
 (1) 8M x 36  | 
 (1) 8M x 36  | 
 (1) 4M x 36  | 
 (1) 4M x 36  | 
| 
 96MB  | 
 (1) 8M x 36  | 
 (1) 8M x 36  | 
 (1) 8M x 36  | 
 NONE  | 
| 
 128MB  | 
 (1) 8M x 36  | 
 (1) 8M x 36  | 
 (1) 8M x 36  | 
 (1) 8M x 36  | 
| 
 CACHE CONFIGURATION  | |
| 
 Size  | 
 Bank 0  | 
| 
 512KB  | 
 (8) 64K x 8  | 
| 
 Note: Cache is factory installed and is not configurable.  | |
| 
 CPU SPEED CONFIGURATION  | ||||
| 
 Speed  | 
 E1  | 
 E2  | 
 E3  | 
 E7  | 
| 
 60MHz  | 
 pins 1 & 2 closed  | 
 Open  | 
 Closed  | 
 Open  | 
| 
 66MHz  | 
 pins 1 & 2 closed  | 
 Closed  | 
 Closed  | 
 Open  | 
| 
 90MHz  | 
 pins 2 & 3 closed  | 
 Open  | 
 Closed  | 
 Open  | 
| 
 100MHz  | 
 pins 2 & 3 closed  | 
 Open  | 
 Closed  | 
 Closed  | 
| 
 Note: Use these settings with IMI415 installed at U7.  | ||||
| 
 CPU SPEED CONFIGURATION  | ||||
| 
 Speed  | 
 E1  | 
 E2  | 
 E3  | 
 E7  | 
| 
 60MHz  | 
 pins 1 & 2 closed  | 
 Open  | 
 Closed  | 
 Closed  | 
| 
 66MHz  | 
 pins 1 & 2 closed  | 
 Closed  | 
 Closed  | 
 Closed  | 
| 
 90MHz  | 
 pins 2 & 3 closed  | 
 Open  | 
 Closed  | 
 Closed  | 
| 
 100MHz  | 
 pins 2 & 3 closed  | 
 Open  | 
 Closed  | 
 Open  | 
| 
 Note: Use these settings with IMI470 installed at U7.  | ||||