SHUTTLE COMPUTER INTERNATIONAL, INC.
HOT-433 (REV. 1)
| 
 Processor  | 
 CX486M6/80486SX/SL80486SX/UMCU5/CX486DX/AM486DX/80486DX/SL80486DX/CX486DX2/AM486DX2/8046DX2/SL80486DX2/CX486DX4/AM486DX4/80468DX4/P24D/P24T  | 
| 
 Processor Speed  | 
 25/33/40/50(internal)/50/66(internal)/75(internal)/80(internal)/ 100(internal)MHz  | 
| 
 Chip Set  | 
 UMC  | 
| 
 Maximum Onboard Memory  | 
 256MB  | 
| 
 Cache  | 
 128/256/512/1024KB  | 
| 
 BIOS  | 
 AMI  | 
| 
 Dimensions  | 
 260mm x 220mm  | 
| 
 I/O Options  | 
 32-bit PCI slots (4), floppy drive interface, green PC connector, IDE interfaces (2), parallel port, PS/2 mouse port, serial ports (2)  | 
| 
 NPU Options  | 
 None  | 
| 
 CONNECTIONS  | |||
| 
 Function  | 
 Label  | 
 Function  | 
 Label  | 
| 
 External battery  | 
 CN1  | 
 Green PC connector  | 
 JP6  | 
| 
 Serial port 2  | 
 CN2  | 
 Reset switch  | 
 JP33  | 
| 
 Serial port 1  | 
 CN3  | 
 Turbo switch  | 
 JP34  | 
| 
 Parallel port  | 
 CN4  | 
 Green PC connector  | 
 JP35  | 
| 
 Floppy drive interface  | 
 CN5  | 
 Green PC LED  | 
 LED1  | 
| 
 IDE interface 2  | 
 CN6  | 
 IDE interface LED  | 
 LED2  | 
| 
 IDE interface 1  | 
 CN7  | 
 PS/2 mouse port  | 
 MS1  | 
| 
 Speaker  | 
 CN8  | 
 32-bit PCI slots  | 
 PC1 - PC4  | 
| 
 Power LED & keylock  | 
 CN9  | ||
| 
 USER CONFIGURABLE SETTINGS  | |||
| 
 Setting  | 
 Label  | 
 Position  | |
| 
 Flash BIOS voltage select 5v  | 
 JP8  | 
 Pins 2 & 3 closed  | |
| 
 Flash BIOS voltage select 12v  | 
 JP8  | 
 Pins 1 & 2 closed  | |
| 
 DRAM  | ||||
| 
 Size  | 
 Bank 0  | 
 Bank 1  | 
 Bank 2  | 
 Bank 3  | 
| 
 1MB  | 
 (1) 256K x 36  | 
 None  | 
 None  | 
 None  | 
| 
 2MB  | 
 (1) 256K x 36  | 
 (1) 256K x 36  | 
 None  | 
 None  | 
| 
 2MB  | 
 (1) 512K x 36  | 
 None  | 
 None  | 
 None  | 
| 
 3MB  | 
 (1) 256K x 36  | 
 (1) 256K x 36  | 
 (1) 256K x 36  | 
 None  | 
| 
 4MB  | 
 (1) 256K x 36  | 
 (1) 256K x 36  | 
 (1) 256K x 36  | 
 (1) 256K x 36  | 
| 
 4MB  | 
 (1) 512K x 36  | 
 (1) 512K x 36  | 
 None  | 
 None  | 
| 
 4MB  | 
 (1) 1M x 36  | 
 None  | 
 None  | 
 None  | 
| 
 6MB  | 
 (1) 512K x 36  | 
 (1) 512K x 36  | 
 (1) 512K x 36  | 
 None  | 
| 
 6MB  | 
 (1) 256K x 36  | 
 (1) 256K x 36  | 
 (1) 512K x 36  | 
 (1) 512K x 36  | 
| 
 8MB  | 
 (1) 512K x 36  | 
 (1) 512K x 36  | 
 (1) 512K x 36  | 
 (1) 512K x 36  | 
| 
 8MB  | 
 (1) 1M x 36  | 
 (1) 1M x 36  | 
 None  | 
 None  | 
| 
 8MB  | 
 (1) 2M x 36  | 
 None  | 
 None  | 
 None  | 
| 
 10MB  | 
 (1) 256K x 36  | 
 (1) 256K x 36  | 
 (1) 1M x 36  | 
 (1) 1M x 36  | 
| 
 12MB  | 
 (1) 1M x 36  | 
 (1) 1M x 36  | 
 (1) 1M x 36  | 
 None  | 
| 
 12MB  | 
 (1) 512K x 36  | 
 (1) 512K x 36  | 
 (1) 1M x 36  | 
 (1) 1M x 36  | 
| 
 16MB  | 
 (1) 1M x 36  | 
 (1) 1M x 36  | 
 (1) 1M x 36  | 
 (1) 1M x 36  | 
| 
 16MB  | 
 (1) 2M x 36  | 
 (1) 2M x 36  | 
 None  | 
 None  | 
| 
 16MB  | 
 (1) 4M x 36  | 
 None  | 
 None  | 
 None  | 
| 
 18MB  | 
 (1) 256K x 36  | 
 (1) 256K x 36  | 
 (1) 2M x 36  | 
 (1) 2M x 36  | 
| 
 20MB  | 
 (1) 512K x 36  | 
 (1) 512K x 36  | 
 (1) 2M x 36  | 
 (1) 2M x 36  | 
| 
 24MB  | 
 (1) 2M x 36  | 
 (1) 2M x 36  | 
 (1) 2M x 36  | 
 None  | 
| 
 24MB  | 
 (1) 1M x 36  | 
 (1) 1M x 36  | 
 (1) 2M x 36  | 
 (1) 2M x 36  | 
| 
 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  | 
| 
 DRAM (CON’T)  | ||||
| 
 Size  | 
 Bank 0  | 
 Bank 1  | 
 Bank 2  | 
 Bank 3  | 
| 
 32MB  | 
 (1) 8M x 36  | 
 None  | 
 None  | 
 None  | 
| 
 34MB  | 
 (1) 256K x 36  | 
 (1) 256K x 36  | 
 (1) 4M x 36  | 
 (1) 4M x 36  | 
| 
 36MB  | 
 (1) 512K x 36  | 
 (1) 512K x 36  | 
 (1) 4M x 36  | 
 (1) 4M x 36  | 
| 
 40MB  | 
 (1) 1M x 36  | 
 (1) 1M x 36  | 
 (1) 4M x 36  | 
 (1) 4M x 36  | 
| 
 48MB  | 
 (1) 4M x 36  | 
 (1) 4M x 36  | 
 (1) 4M x 36  | 
 None  | 
| 
 48MB  | 
 (1) 2M x 36  | 
 (1) 2M x 36  | 
 (1) 4M x 36  | 
 (1) 4M x 36  | 
| 
 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  | 
| 
 64MB  | 
 (1) 16M x 36  | 
 None  | 
 None  | 
 None  | 
| 
 66MB  | 
 (1) 256K x 36  | 
 (1) 256K x 36  | 
 (1) 8M x 36  | 
 (1) 8M x 36  | 
| 
 68MB  | 
 (1) 512K x 36  | 
 (1) 512K x 36  | 
 (1) 8M x 36  | 
 (1) 8M x 36  | 
| 
 72MB  | 
 (1) 1M x 36  | 
 (1) 1M x 36  | 
 (1) 8M x 36  | 
 (1) 8M x 36  | 
| 
 80MB  | 
 (1) 2M x 36  | 
 (1) 2M x 36  | 
 (1) 8M x 36  | 
 (1) 8M x 36  | 
| 
 96MB  | 
 (1) 8M x 36  | 
 (1) 8M x 36  | 
 (1) 8M x 36  | 
 None  | 
| 
 96MB  | 
 (1) 4M x 36  | 
 (1) 4M x 36  | 
 (1) 8M x 36  | 
 (1) 8M x 36  | 
| 
 128MB  | 
 (1) 8M x 36  | 
 (1) 8M x 36  | 
 (1) 8M x 36  | 
 (1) 8M x 36  | 
| 
 128MB  | 
 (1) 16M x 36  | 
 (1) 16M x 36  | 
 None  | 
 None  | 
| 
 160MB  | 
 (1) 4M x 36  | 
 (1) 4M x 36  | 
 (1) 16M x 36  | 
 (1) 16M x 36  | 
| 
 192MB  | 
 (1) 16M x 36  | 
 (1) 16M x 36  | 
 (1) 16M x 36  | 
 None  | 
| 
 192MB  | 
 (1) 8M x 36  | 
 (1) 8M x 36  | 
 (1) 16M x 36  | 
 (1) 16M x 36  | 
| 
 256MB  | 
 (1) 16M x 36  | 
 (1) 16M x 36  | 
 (1) 16M x 36  | 
 (1) 16M x 36  | 
| 
 CACHE SIZE  | |||
| 
 Size  | 
 Bank 0  | 
 Bank 1  | 
 TAG  | 
| 
 128KB  | 
 (4) 32K x 8  | 
 None  | 
 (1) 8K x 8  | 
| 
 256KB (A)  | 
 (4) 32K x 8  | 
 (4) 32K x 8  | 
 (1) 32K x 8  | 
| 
 256KB (B)  | 
 (4) 64K x 8  | 
 None  | 
 (1) 32K x 8  | 
| 
 512KB (A)  | 
 (4) 128K x 8  | 
 None  | 
 (1) 32K x 8  | 
| 
 512KB (B)  | 
 (4) 64K x 8  | 
 (4) 64K x 8  | 
 (1) 32K x 8  | 
| 
 1MB  | 
 (4) 128K x 8  | 
 (4) 128K x 8  | 
 (1) 64K x 8  | 
| 
 CACHE JUMPER  | ||||
| 
 Size  | 
 JP11  | 
 JP12  | 
 JP13  | 
 JP14  | 
| 
 128KB  | 
 Open  | 
 Open  | 
 2 & 3  | 
 Open  | 
| 
 256KB (A)  | 
 Open  | 
 Open  | 
 1 & 2  | 
 1 & 2  | 
| 
 256KB (B)  | 
 Open  | 
 1 & 2  | 
 2 & 3  | 
 1 & 2  | 
| 
 512KB (A)  | 
 1 & 2  | 
 1 & 2  | 
 2 & 3  | 
 1 & 2, 3 & 4  | 
| 
 512KB (B)  | 
 Open  | 
 2 & 3  | 
 1 & 2  | 
 1 & 2, 3 & 4  | 
| 
 1MB  | 
 2 & 3  | 
 2 & 3  | 
 1 & 2  | 
 1 & 2, 3 & 4, 5 & 6  | 
| 
 Note: Pins designated should be in the closed position.  | ||||
| 
 CPU TYPE  | |||||
| 
 Setting  | 
 JP10  | 
 JP17  | 
 JP19  | 
 JP20  | 
 JP21  | 
| 
 CX486M6  | 
 1 & 3, 4 & 6  | 
 2 & 3  | 
 3 & 4  | 
 1 & 2, 3 & 4  | 
 1 & 2  | 
| 
 80486SX  | 
 1 & 3, 2 & 4  | 
 Open  | 
 1 & 2  | 
 Open  | 
 Open  | 
| 
 SL80486SX  | 
 1 & 3, 2 & 4  | 
 1 & 2  | 
 3 & 4  | 
 2 & 3, 4 & 5  | 
 1 & 2  | 
| 
 UMC U5  | 
 2 & 4, 3 & 5  | 
 Open  | 
 1 & 2  | 
 Open  | 
 2 & 3  | 
| 
 CX486DX  | 
 1 & 3, 4 & 6  | 
 2 & 3  | 
 3 & 4  | 
 1 & 2, 3 & 4  | 
 1 & 2  | 
| 
 AM486DX  | 
 1 & 3, 2 & 4  | 
 Open  | 
 1 & 2  | 
 Open  | 
 Open  | 
| 
 80486DX  | 
 1 & 3, 2 & 4  | 
 Open  | 
 1 & 2  | 
 Open  | 
 Open  | 
| 
 SL80486DX  | 
 1 & 3, 2 & 4  | 
 1 & 2  | 
 3 & 4  | 
 2 & 3, 4 & 5  | 
 1 & 2  | 
| 
 CX486DX2  | 
 1 & 3, 4 & 6  | 
 2 & 3  | 
 3 & 4  | 
 1 & 2, 3 & 4  | 
 1 & 2  | 
| 
 AM486DX2  | 
 1 & 3, 2 & 4  | 
 Open  | 
 1 & 2  | 
 Open  | 
 Open  | 
| 
 80486DX2  | 
 1 & 3, 2 & 4  | 
 Open  | 
 1 & 2  | 
 Open  | 
 Open  | 
| 
 SL80486DX2  | 
 1 & 3, 2 & 4  | 
 1 & 2  | 
 3 & 4  | 
 2 & 3, 4 & 5  | 
 1 & 2  | 
| 
 CX486DX4  | 
 1 & 3, 4 & 6  | 
 1 & 2  | 
 3 & 4  | 
 2 & 3, 4 & 5  | 
 1 & 2  | 
| 
 AM486DX4  | 
 1 & 3, 2 & 4  | 
 Open  | 
 1 & 2  | 
 Open  | 
 Open  | 
| 
 80486DX4  | 
 1 & 3, 2 & 4  | 
 1 & 2  | 
 3 & 4  | 
 2 & 3, 4 & 5  | 
 1 & 2  | 
| 
 P24D  | 
 1 & 3, 2 & 4  | 
 1 & 2  | 
 3 & 4  | 
 2 & 3, 4 & 5  | 
 1 & 2  | 
| 
 P24T  | 
 1 & 3, 2 & 4  | 
 1 & 2  | 
 3 & 4, 5 & 6  | 
 2 & 3, 4 & 5  | 
 1 & 2  | 
| 
 Note: Pins designated should be in the closed position.  | |||||
| 
 CPU TYPE (CON’T)  | |||||
| 
 Setting  | 
 JP22  | 
 JP23  | 
 JP25  | 
 JP26  | 
 JP27  | 
| 
 CX486M6  | 
 Open  | 
 Open  | 
 2 & 3  | 
 2 & 3  | 
 1 & 2  | 
| 
 80486SX  | 
 Open  | 
 Open  | 
 2 & 3  | 
 Open  | 
 Open  | 
| 
 SL80486SX  | 
 Open  | 
 Open  | 
 2 & 3  | 
 Open  | 
 Open  | 
| 
 UMC U5  | 
 Open  | 
 Open  | 
 2 & 3  | 
 1 & 2  | 
 2 & 3  | 
| 
 CX486DX  | 
 Open  | 
 Open  | 
 2 & 3  | 
 2 & 3  | 
 1 & 2  | 
| 
 AM486DX  | 
 Open  | 
 Open  | 
 2 & 3  | 
 Open  | 
 Open  | 
| 
 80486DX  | 
 Open  | 
 Open  | 
 2 & 3  | 
 Open  | 
 Open  | 
| 
 SL80486DX  | 
 Open  | 
 Open  | 
 2 & 3  | 
 Open  | 
 Open  | 
| 
 CX486DX2  | 
 Open  | 
 Open  | 
 2 & 3  | 
 2 & 3  | 
 1 & 2  | 
| 
 AM486DX2  | 
 Open  | 
 Open  | 
 2 & 3  | 
 Open  | 
 Open  | 
| 
 80486DX2  | 
 Open  | 
 Open  | 
 2 & 3  | 
 Open  | 
 Open  | 
| 
 SL80486DX2  | 
 Open  | 
 Open  | 
 2 & 3  | 
 Open  | 
 Open  | 
| 
 CX486DX4  | 
 Open  | 
 Open  | 
 2 & 3  | 
 2 & 3  | 
 1 & 2  | 
| 
 AM486DX4  | 
 Open  | 
 Open  | 
 2 & 3  | 
 Open  | 
 Open  | 
| 
 80486DX4  | 
 Open  | 
 Open  | 
 2 & 3  | 
 Open  | 
 Open  | 
| 
 P24D  | 
 Closed  | 
 Closed  | 
 2 & 3  | 
 Open  | 
 Open  | 
| 
 P24T  | 
 Open  | 
 Open  | 
 2 & 3  | 
 1 & 2  | 
 2 & 3  | 
| 
 Note: Pins designated should be in the closed position.  | |||||
| 
 CPU TYPE (CON’T)  | |||||
| 
 Setting  | 
 JP28  | 
 JP29  | 
 JP30  | 
 JP31  | 
 JP32  | 
| 
 CX486M6  | 
 2 & 3  | 
 1 & 2  | 
 Open  | 
 Open  | 
 Open  | 
| 
 80486SX  | 
 2 & 3  | 
 Open  | 
 Open  | 
 Open  | 
 Open  | 
| 
 SL80486SX  | 
 2 & 3  | 
 Open  | 
 Open  | 
 Open  | 
 Open  | 
| 
 UMC U5  | 
 2 & 3  | 
 3 & 4  | 
 1 & 2, 3 & 4  | 
 Open  | 
 Open  | 
| 
 CX486DX  | 
 1 & 2, 3 & 4  | 
 2 & 3  | 
 3 & 4  | 
 Open  | 
 Open  | 
| 
 AM486DX  | 
 1 & 2, 3 & 4  | 
 Open  | 
 3 & 4  | 
 Open  | 
 Open  | 
| 
 80486DX  | 
 1 & 2, 3 & 4  | 
 Open  | 
 3 & 4  | 
 Open  | 
 Open  | 
| 
 SL80486DX  | 
 1 & 2, 3 & 4  | 
 Open  | 
 3 & 4  | 
 Open  | 
 Open  | 
| 
 CX486DX2  | 
 1 & 2, 3 & 4  | 
 2 & 3  | 
 3 & 4  | 
 Open  | 
 Open  | 
| 
 AM486DX2  | 
 1 & 2, 3 & 4  | 
 Open  | 
 3 & 4  | 
 Open  | 
 Open  | 
| 
 80486DX2  | 
 1 & 2, 3 & 4  | 
 Open  | 
 3 & 4  | 
 Open  | 
 Open  | 
| 
 SL80486DX2  | 
 1 & 2, 3 & 4  | 
 Open  | 
 3 & 4  | 
 Open  | 
 Open  | 
| 
 CX486DX4  | 
 1 & 2, 3 & 4  | 
 Open  | 
 3 & 4  | 
 Open  | 
 Open  | 
| 
 AM486DX4  | 
 1 & 2, 3 & 4  | 
 Open  | 
 3 & 4  | 
 Open  | 
 Open  | 
| 
 80486DX4  | 
 1 & 2, 3 & 4  | 
 Open  | 
 3 & 4  | 
 Open  | 
 Open  | 
| 
 P24D  | 
 1 & 2, 3 & 4  | 
 Open  | 
 3 & 4  | 
 Closed  | 
 Closed  | 
| 
 P24T  | 
 1 & 2, 3 & 4  | 
 3 & 4  | 
 2 & 3  | 
 Open  | 
 Open  | 
| 
 Note: Pins designated should be in the closed position.  | |||||
| 
 CPU TYPE (P24D ONLY)  | |
| 
 Setting  | 
 JP24  | 
| 
 Write back  | 
 Pins 2 & 3 closed  | 
| 
 Write through  | 
 Pins 1 & 2 closed  | 
| 
 Other CPU types  | 
 Open  | 
| 
 CPU SPEED  | |||
| 
 Setting  | 
 JP1  | 
 JP2  | 
 JP3  | 
| 
 25MHz  | 
 Pins 2 & 3 closed  | 
 Pins 2 & 3 closed  | 
 Pins 1 & 2 closed  | 
| 
 33MHz  | 
 Pins 1 & 2 closed  | 
 Pins 1 & 2 closed  | 
 Pins 1 & 2 closed  | 
| 
 40MHz  | 
 Pins 2 & 3 closed  | 
 Pins 1 & 2 closed  | 
 Pins 1 & 2 closed  | 
| 
 50iMHz  | 
 Pins 2 & 3 closed  | 
 Pins 2 & 3 closed  | 
 Pins 1 & 2 closed  | 
| 
 50MHz  | 
 Pins 1 & 2 closed  | 
 Pins 2 & 3 closed  | 
 Pins 2 & 3 closed  | 
| 
 66iMHz  | 
 Pins 1 & 2 closed  | 
 Pins 1 & 2 closed  | 
 Pins 1 & 2 closed  | 
| 
 80iMHz  | 
 Pins 2 & 3 closed  | 
 Pins 1 & 2 closed  | 
 Pins 1 & 2 closed  | 
| 
 100iMHz  | 
 Pins 1 & 2 closed  | 
 Pins 1 & 2 closed  | 
 Pins 1 & 2 closed  | 
| 
 CPU MULTIPLIER (DX4 ONLY)  | ||
| 
 Internal clock  | 
 External clock  | 
 JP18  | 
| 
 75iMHz  | 
 25MHz  | 
 Open  | 
| 
 100iMHz  | 
 33MHz  | 
 Open  | 
| 
 100iMHz  | 
 50MHz  | 
 Pins 2 & 3 closed  | 
| 
 CPU MULTIPLIER (AM486DX2/DX4 ONLY)  | ||
| 
 Internal clock  | 
 External clock  | 
 JP24  | 
| 
 75iMHz  | 
 25MHz  | 
 Pins 2 & 3 closed  | 
| 
 80iMHz  | 
 40MHz  | 
 Pins 1 & 2 closed  | 
| 
 100iMHz  | 
 33MHz  | 
 Pins 2 & 3 closed  | 
| 
 100iMHz  | 
 50MHz  | 
 Pins 1 & 2 closed  | 
| 
 Other CPU types  | 
 Open  | |
| 
 CPU VOLTAGE  | |||
| 
 Setting  | 
 JP9  | 
 JP15  | 
 JP16  | 
| 
 3.3v  | 
 Pins 1 & 2 closed  | 
 Pins 2 & 3 closed  | 
 Pins 2 & 3 closed  | 
| 
 3.45v  | 
 Pins 3 & 4 closed  | 
 Pins 2 & 3 closed  | 
 Pins 2 & 3 closed  | 
| 
 3.6v  | 
 Pins 5 & 6 closed  | 
 Pins 2 & 3 closed  | 
 Pins 2 & 3 closed  | 
| 
 4v  | 
 Pins 7 & 8 closed  | 
 Pins 2 & 3 closed  | 
 Pins 2 & 3 closed  | 
| 
 5v  | 
 Any setting  | 
 Pins 1 & 2 closed  | 
 Pins 1 & 2 closed  |