ABIT COMPUTER CORPORATION
PN5
| 
 Processor  | 
 CX M1/Pentium  | 
| 
 Processor Speed  | 
 75/90/100/120/133/150/166/180/200MHz  | 
| 
 Chip Set  | 
 Unidentified  | 
| 
 Maximum Onboard Memory  | 
 128MB  | 
| 
 Cache  | 
 256/512KB  | 
| 
 BIOS  | 
 Unidentified  | 
| 
 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), cache slot, IR connector, USB connector  | 
| 
 NPU Options  | 
 None  | 
| 
 CONNECTIONS  | |||
| 
 Function  | 
 Label  | 
 Function  | 
 Label  | 
| 
 Serial port 1  | 
 CN1  | 
 Speaker  | 
 J7 pins 7 - 10  | 
| 
 Serial port 2  | 
 CN2  | 
 Reset switch  | 
 J7 pins 11 - 12  | 
| 
 Parallel port  | 
 CN3  | 
 Green PC connector  | 
 J7 pins 14 - 15  | 
| 
 Floppy drive interface  | 
 CN4  | 
 Turbo LED  | 
 J7 pins 16 & 17  | 
| 
 IDE interface 2  | 
 CN5  | 
 Green PC LED  | 
 J8  | 
| 
 IDE interface 1  | 
 CN6  | 
 IR connector  | 
 JP2  | 
| 
 PS/2 mouse port  | 
 J3  | 
 USB connector  | 
 JP28  | 
| 
 IDE interface LED  | 
 J6  | 
 32-bit PCI slots  | 
 PC1 - PC3  | 
| 
 Power LED & keylock  | 
 J7 pins 1 - 5  | 
 Cache slot  | 
 SL1  | 
| 
 USER CONFIGURABLE SETTINGS  | |||
| 
 Setting  | 
 Label  | 
 Position  | |
| » | 
 DRAM refresh rate select 66MHz  | 
 DS1  | 
 Closed  | 
| 
 DRAM refresh rate select 60MHz  | 
 DS1  | 
 Open  | |
| » | 
 Factory configured - do not alter  | 
 JP1  | 
 N/A  | 
| 
 DRAM  | ||
| 
 Size  | 
 Bank 0  | 
 Bank 1  | 
| 
 2MB  | 
 (2) 256K x 36  | 
 None  | 
| 
 4MB  | 
 (2) 512K x 36  | 
 None  | 
| 
 4MB  | 
 (2) 256K x 36  | 
 (2) 256K x 36  | 
| 
 6MB  | 
 (2) 512K x 36  | 
 (2) 256K x 36  | 
| 
 6MB  | 
 (2) 256K x 36  | 
 (2) 512K x 36  | 
| 
 8MB  | 
 (2) 1M x 36  | 
 None  | 
| 
 8MB  | 
 (2) 512K x 36  | 
 (2) 512K x 36  | 
| 
 10MB  | 
 (2) 1M x 36  | 
 (2) 256K x 36  | 
| 
 10MB  | 
 (2) 256K x 36  | 
 (2) 1M x 36  | 
| 
 12MB  | 
 (2) 1M x 36  | 
 (2) 512K x 36  | 
| 
 12MB  | 
 (2) 512K x 36  | 
 (2) 1M x 36  | 
| 
 16MB  | 
 (2) 2M x 36  | 
 None  | 
| 
 16MB  | 
 (2) 1M x 36  | 
 (2) 1M x 36  | 
| 
 18MB  | 
 (2) 2M x 36  | 
 (2) 256K x 36  | 
| 
 18MB  | 
 (2) 256K x 36  | 
 (2) 2M x 36  | 
| 
 20MB  | 
 (2) 2M x 36  | 
 (2) 512K x 36  | 
| 
 20MB  | 
 (2) 512K x 36  | 
 (2) 2M x 36  | 
| 
 24MB  | 
 (2) 2M x 36  | 
 (2) 1M x 36  | 
| 
 24MB  | 
 (2) 1M x 36  | 
 (2) 2M x 36  | 
| 
 32MB  | 
 (2) 4M x 36  | 
 None  | 
| 
 32MB  | 
 (2) 2M x 36  | 
 (2) 2M x 36  | 
| 
 34MB  | 
 (2) 4M x 36  | 
 (2) 256K x 36  | 
| 
 34MB  | 
 (2) 256K x 36  | 
 (2) 4M x 36  | 
| 
 36MB  | 
 (2) 4M x 36  | 
 (2) 512K x 36  | 
| 
 36MB  | 
 (2) 512K x 36  | 
 (2) 4M x 36  | 
| 
 40MB  | 
 (2) 4M x 36  | 
 (2) 1M x 36  | 
| 
 40MB  | 
 (2) 1M x 36  | 
 (2) 4M x 36  | 
| 
 48MB  | 
 (2) 4M x 36  | 
 (2) 2M x 36  | 
| 
 48MB  | 
 (2) 2M x 36  | 
 (2) 4M x 36  | 
| 
 64MB  | 
 (2) 8M x 36  | 
 None  | 
| 
 64MB  | 
 (2) 4M x 36  | 
 (2) 4M x 36  | 
| 
 66MB  | 
 (2) 8M x 36  | 
 (2) 256K x 36  | 
| 
 66MB  | 
 (2) 256K x 36  | 
 (2) 8M x 36  | 
| 
 68MB  | 
 (2) 8M x 36  | 
 (2) 512K x 36  | 
| 
 68MB  | 
 (2) 512K x 36  | 
 (2) 8M x 36  | 
| 
 DRAM (CON’T)  | ||
| 
 Size  | 
 Bank 0  | 
 Bank 1  | 
| 
 72MB  | 
 (2) 8M x 36  | 
 (2) 1M x 36  | 
| 
 72MB  | 
 (2) 1M x 36  | 
 (2) 8M x 36  | 
| 
 80MB  | 
 (2) 8M x 36  | 
 (2) 2M x 36  | 
| 
 80MB  | 
 (2) 2M x 36  | 
 (2) 8M x 36  | 
| 
 96MB  | 
 (2) 8M x 36  | 
 (2) 4M x 36  | 
| 
 96MB  | 
 (2) 4M x 36  | 
 (2) 8M x 36  | 
| 
 128MB  | 
 (2) 8M x 36  | 
 (2) 8M x 36  | 
| 
 CACHE SIZE  | |||
| 
 Size  | 
 Bank 0  | 
 SL1  | 
 TAG  | 
| 
 256KB  | 
 (2) 32K x 32  | 
 Not installed  | 
 (1) 32K x 8  | 
| 
 512KB  | 
 (2) 32K x 32  | 
 Installed  | 
 (1) 32K x 8  | 
| 
 Note: Bank 0 is factory installed and is not configurable.  | |||
| 
 CACHE JUMPER  | |||
| 
 Size  | 
 JP5  | 
 JP6  | 
 JP20  | 
| 
 256KB  | 
 Open  | 
 Open  | 
 Open  | 
| 
 512KB  | 
 Closed  | 
 Closed  | 
 Closed  | 
| 
 CPU SPEED (PENTIUM)  | |||||
| 
 Setting  | 
 DS2  | 
 DS3  | 
 DS4  | 
 DS5  | 
 DS6  | 
| 
 75MHz  | 
 Open  | 
 Closed  | 
 Closed  | 
 Open  | 
 Open  | 
| 
 90MHz  | 
 Closed  | 
 Closed  | 
 Open  | 
 Open  | 
 Open  | 
| 
 100MHz  | 
 Closed  | 
 Open  | 
 Closed  | 
 Open  | 
 Open  | 
| 
 120MHz  | 
 Closed  | 
 Closed  | 
 Open  | 
 Closed  | 
 Open  | 
| 
 133MHz  | 
 Closed  | 
 Open  | 
 Closed  | 
 Closed  | 
 Open  | 
| 
 150MHz  | 
 Closed  | 
 Closed  | 
 Open  | 
 Closed  | 
 Closed  | 
| 
 166MHz  | 
 Closed  | 
 Open  | 
 Closed  | 
 Closed  | 
 Closed  | 
| 
 180MHz  | 
 Closed  | 
 Closed  | 
 Open  | 
 Open  | 
 Closed  | 
| 
 200MHz  | 
 Closed  | 
 Open  | 
 Closed  | 
 Open  | 
 Closed  | 
| 
 CPU SPEED (CYRIX)  | |||||
| 
 Setting  | 
 DS2  | 
 DS3  | 
 DS4  | 
 DS5  | 
 DS6  | 
| 
 120MHz  | 
 Open  | 
 Closed  | 
 Closed  | 
 Closed  | 
 Open  | 
| 
 133MHz  | 
 Closed  | 
 Open  | 
 Open  | 
 Closed  | 
 Open  | 
| 
 150MHz  | 
 Closed  | 
 Closed  | 
 Open  | 
 Closed  | 
 Open  | 
| 
 166MHz  | 
 Open  | 
 Open  | 
 Closed  | 
 Closed  | 
 Open  | 
| 
 CPU VOLTAGE  | ||
| 
 Setting  | 
 JP23  | |
| 
 3.3v  | 
 Pins 2 & 5 closed  | |
| » | 
 3.45v  | 
 Pins 3 & 6 closed  | 
| 
 3.6v  | 
 Pins 1 & 4 closed  | |
| 
 Note: The location of pin 1 is unidentified.  | ||