ABIT COMPUTER CORPORATION
PH5 (REV. 1.1)
| 
 Processor  | 
 Pentium  | 
| 
 Processor Speed  | 
 75/90/100/120/125/133/150/166/180MHz  | 
| 
 Chip Set  | 
 SIS  | 
| 
 Max. Onboard DRAM  | 
 128MB  | 
| 
 Cache  | 
 256/512KB  | 
| 
 BIOS  | 
 Award  | 
| 
 Dimensions  | 
 330mm x 218mm  | 
| 
 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), VRM module connector, cache slot  | 
| 
 NPU Options  | 
 None  | 
| 
 CONNECTIONS  | |||
| 
 Purpose  | 
 Location  | 
 Purpose  | 
 Location  | 
| 
 Serial port 1  | 
 CN2  | 
 Speaker  | 
 J15 pins 7 - 10  | 
| 
 Serial port 2  | 
 CN3  | 
 Turbo LED  | 
 J15 pins 12 & 13  | 
| 
 Floppy drive interface  | 
 CN4  | 
 Turbo switch  | 
 J15 pins 16 - 18  | 
| 
 Parallel port  | 
 CN5  | 
 Reset switch  | 
 J15 pins 19 & 20  | 
| 
 IDE interface 2  | 
 CN6  | 
 IR connector  | 
 JP4  | 
| 
 IDE interface 1  | 
 CN7  | 
 Green PC connector  | 
 JP5  | 
| 
 PS/2 mouse port  | 
 J4  | 
 External battery  | 
 JP34  | 
| 
 VRM module connector  | 
 J12  | 
 Chassis fan power  | 
 JP37  | 
| 
 IDE interface LED  | 
 J14  | 
 32-bit PCI slots  | 
 PC1 - PC4  | 
| 
 Power LED & keylock  | 
 J15 pins 1 - 5  | 
 Cache slot  | 
 SL1  | 
| 
 USER CONFIGURABLE SETTINGS  | |||
| 
 Function  | 
 Jumper  | 
 Position  | |
| 
 »  | 
 On board I/O enabled  | 
 JP6  | 
 Open  | 
| 
 On board I/O disabled  | 
 JP6  | 
 Closed  | |
| 
 »  | 
 BIOS type select 5v EPROM  | 
 JP18  | 
 pins 2 & 3 closed  | 
| 
 BIOS type select 12v flash  | 
 JP18  | 
 pins 1 & 2 closed  | |
| 
 »  | 
 Monitor type select color  | 
 JP30  | 
 Closed  | 
| 
 Monitor type select monochrome  | 
 JP30  | 
 Open  | |
| 
 »  | 
 CMOS memory normal operation  | 
 JP33  | 
 pins 1 & 2 closed  | 
| 
 CMOS memory clear  | 
 JP33  | 
 pins 2 & 3 closed  | |
| 
 »  | 
 Factory configured - do not alter  | 
 JP41  | 
 Open  | 
| 
 DRAM CONFIGURATION  | ||
| 
 Size  | 
 Bank 0  | 
 Bank 1  | 
| 
 2MB  | 
 (2) 256K x 32  | 
 NONE  | 
| 
 2MB  | 
 NONE  | 
 (2) 256K x 32  | 
| 
 4MB  | 
 (2) 256K x 32  | 
 (2) 256K x 32  | 
| 
 8MB  | 
 (2) 1M x 32  | 
 NONE  | 
| 
 8MB  | 
 NONE  | 
 (2) 1M x 32  | 
| 
 10MB  | 
 (2) 1M x 32  | 
 (2) 256K x 32  | 
| 
 10MB  | 
 (2) 256K x 32  | 
 (2) 1M x 32  | 
| 
 16MB  | 
 (2) 2M x 32  | 
 NONE  | 
| 
 16MB  | 
 (2) 1M x 32  | 
 (2) 1M x 32  | 
| 
 16MB  | 
 NONE  | 
 (2) 2M x 32  | 
| 
 18MB  | 
 (2) 2M x 32  | 
 (2) 256K x 32  | 
| 
 18MB  | 
 (2) 256K x 32  | 
 (2) 2M x 32  | 
| 
 24MB  | 
 (2) 2M x 32  | 
 (2) 1M x 32  | 
| 
 24MB  | 
 (2) 1M x 32  | 
 (2) 2M x 32  | 
| 
 32MB  | 
 (2) 4M x 32  | 
 NONE  | 
| 
 32MB  | 
 (2) 2M x 32  | 
 (2) 2M x 32  | 
| 
 32MB  | 
 NONE  | 
 (2) 4M x 32  | 
| 
 34MB  | 
 (2) 4M x 32  | 
 (2) 256K x 32  | 
| 
 34MB  | 
 (2) 256K x 32  | 
 (2) 4M x 32  | 
| 
 DRAM CONFIGURATION (CON’T)  | ||
| 
 Size  | 
 Bank 0  | 
 Bank 1  | 
| 
 40MB  | 
 (2) 4M x 32  | 
 (2) 1M x 32  | 
| 
 40MB  | 
 (2) 1M x 32  | 
 (2) 4M x 32  | 
| 
 48MB  | 
 (2) 4M x 32  | 
 (2) 2M x 32  | 
| 
 48MB  | 
 (2) 2M x 32  | 
 (2) 4M x 32  | 
| 
 64MB  | 
 (2) 8M x 32  | 
 NONE  | 
| 
 64MB  | 
 (2) 4M x 32  | 
 (2) 4M x 32  | 
| 
 64MB  | 
 NONE  | 
 (2) 8M x 32  | 
| 
 66MB  | 
 (2) 8M x 32  | 
 (2) 256K x 32  | 
| 
 66MB  | 
 (2) 256K x 32  | 
 (2) 8M x 32  | 
| 
 72MB  | 
 (2) 8M x 32  | 
 (2) 1M x 32  | 
| 
 72MB  | 
 (2) 1M x 32  | 
 (2) 8M x 32  | 
| 
 80MB  | 
 (2) 8M x 32  | 
 (2) 2M x 32  | 
| 
 80MB  | 
 (2) 2M x 32  | 
 (2) 8M x 32  | 
| 
 96MB  | 
 (2) 8M x 32  | 
 (2) 4M x 32  | 
| 
 96MB  | 
 (2) 4M x 32  | 
 (2) 8M x 32  | 
| 
 128MB  | 
 (2) 8M x 32  | 
 (2) 8M x 32  | 
| 
 CACHE CONFIGURATION  | |||
| 
 Size  | 
 Bank 0  | 
 TAG  | 
 SL1  | 
| 
 256KB (A)  | 
 (8) 32K x 8  | 
 (1) 8K or (1)32K x 8  | 
 Not installed  | 
| 
 256KB (B)  | 
 NONE  | 
 NONE  | 
 Installed  | 
| 
 512KB (A)  | 
 (8) 64K x 8  | 
 (1) 16K or (1) 32K x 8  | 
 Not installed  | 
| 
 512KB (B)  | 
 NONE  | 
 NONE  | 
 Installed  | 
| 
 Note: If SL1 is used, remove all chips from Bank 0 & TAG.  | |||
| 
 CACHE JUMPER CONFIGURATION  | |||
| 
 Size  | 
 Type  | 
 JP2  | 
 JP3  | 
| 
 256KB (A)  | 
 Asynchronous  | 
 pins 1 & 2 closed  | 
 pins 1 & 2 closed  | 
| 
 256KB (B)  | 
 Burst/pipeline burst  | 
 pins 1 & 2 closed  | 
 pins 1 & 2 closed  | 
| 
 512KB (A)  | 
 Asynchronous  | 
 pins 1 & 2 closed  | 
 pins 2 & 3 closed  | 
| 
 512KB (B)  | 
 Burst/pipeline burst  | 
 pins 2 & 3 closed  | 
 pins 1 & 2 closed  | 
| 
 CPU SPEED CONFIGURATION  | ||
| 
 Speed  | 
 JP15A  | 
 JP15C  | 
| 
 75MHz  | 
 pins 3 & 4, 5 & 6 closed  | 
 Open  | 
| 
 90MHz  | 
 pins 1 & 2, 5 & 6 closed  | 
 Open  | 
| 
 100MHz  | 
 pins 1 & 2, 3 & 4, 5 & 6 closed  | 
 Open  | 
| 
 120MHz  | 
 pins 1 & 2, 5 & 6 closed  | 
 pins 1 & 2 closed  | 
| 
 125MHz  | 
 pins 3 & 4, 5 & 6 closed  | 
 pins 1 & 2, 3 & 4 closed  | 
| 
 133MHz  | 
 pins 1 & 2, 3 & 4, 5 & 6 closed  | 
 pins 1 & 2 closed  | 
| 
 150MHz  | 
 pins 1 & 2, 5 & 6 closed  | 
 pins 1 & 2, 3 & 4 closed  | 
| 
 166MHz  | 
 pins 1 & 2, 3 & 4, 5 & 6 closed  | 
 pins 1 & 2, 3 & 4 closed  | 
| 
 180MHz  | 
 pins 1 & 2, 5 & 6 closed  | 
 pins 3 & 4 closed  | 
| 
 CPU VOLTAGE CONFIGURATION  | |
| 
 Voltage  | 
 JP29  | 
| 
 3.3v  | 
 pins 1 & 2 closed  | 
| 
 3.45v  | 
 pins 3 & 4 closed  | 
| 
 3.6v  | 
 pins 5 & 6 closed  | 
| 
 VRM CONFIGURATION  | |
| 
 Setting  | 
 JP12  | 
| 
 Installed  | 
 VRM module installed  | 
| 
 Not installed  | 
 pins 7 & 9, 8 & 10, 11 & 13, 12 & 14 closed  |