ASUS COMPUTER INTERNATIONAL
P/I-P55SP4
| 
 Processor  | 
 Pentium  | 
| 
 Processor Speed  | 
 75/90/100/120/133/150/166MHz  | 
| 
 Chip Set  | 
 SIS  | 
| 
 Max. Onboard DRAM  | 
 512MB  | 
| 
 Cache  | 
 256/512/1024KB  | 
| 
 BIOS  | 
 Award  | 
| 
 Dimensions  | 
 330mm x 218mm  | 
| 
 I/O Options  | 
 Parallel port, serial ports (2), 32-bit PCI slots (4), green PC connector, floppy drive interface, IDE interfaces (2), cache slot, MediaBus slot, infrared connector  | 
| 
 NPU Options  | 
 None  | 
| 
 CONNECTIONS  | |||
| 
 Purpose  | 
 Location  | 
 Purpose  | 
 Location  | 
| 
 PS/2 mouse interface  | 
 CN1  | 
 Green PC connector  | 
 J1 pins 14 & 15  | 
| 
 Serial port 2  | 
 CN2  | 
 Turbo switch  | 
 J1 pins 16 & 17  | 
| 
 Serial port 1  | 
 CN3  | 
 Reset switch  | 
 J1 pins 19 & 20  | 
| 
 Parallel port  | 
 CN4  | 
 Green PC connector  | 
 JP1  | 
| 
 Floppy drive interface  | 
 CN5  | 
 Chassis fan power  | 
 JP26  | 
| 
 IDE interface 1  | 
 CN6  | 
 IDE interface LED  | 
 JP27  | 
| 
 IDE interface 2  | 
 CN7  | 
 Infrared connector  | 
 JP31  | 
| 
 Power LED & keylock  | 
 J1 pins 1 - 5  | 
 32-bit PCI slots  | 
 PC1 - PC4  | 
| 
 Speaker  | 
 J1 pins 7 - 10  | 
 MediaBus slot  | 
 SL1  | 
| 
 Turbo LED  | 
 J1 pins 12 & 13  | 
 Cache slot  | 
 SL2  | 
| 
 USER CONFIGURABLE SETTINGS  | |||
| 
 Function  | 
 Jumper  | 
 Position  | |
| 
 »  | 
 PS/2 mouse port disabled  | 
 JP5  | 
 pins 1 & 2 closed  | 
| 
 PS/2 mouse port enabled  | 
 JP5  | 
 pins 2 & 3 closed  | |
| 
 »  | 
 Flash BIOS boot block protected  | 
 JP16  | 
 pins 1 & 2 closed  | 
| 
 Flash BIOS boot block programming enabled  | 
 JP16  | 
 pins 2 & 3 closed  | |
| 
 »  | 
 On board I/O enabled  | 
 JP1C  | 
 pins 1 & 2 closed  | 
| 
 On board I/O disabled  | 
 JP1C  | 
 pins 2 & 3 closed  | |
| 
 DRAM CONFIGURATION  | ||
| 
 Size  | 
 Bank 0  | 
 Bank 1  | 
| 
 2MB  | 
 (2) 256K x 36  | 
 NONE  | 
| 
 4MB  | 
 (2) 256K x 36  | 
 (2) 256K x 36  | 
| 
 4MB  | 
 (2) 512K x 36  | 
 NONE  | 
| 
 6MB  | 
 (2) 256K x 36  | 
 (2) 512K x 36  | 
| 
 6MB  | 
 (2) 512K x 36  | 
 (2) 256K x 36  | 
| 
 8MB  | 
 (2) 512K x 36  | 
 (2) 512K x 36  | 
| 
 8MB  | 
 (2) 1M x 36  | 
 NONE  | 
| 
 10MB  | 
 (2) 256K x 36  | 
 (2) 1M x 36  | 
| 
 10MB  | 
 (2) 1M x 36  | 
 (2) 256K x 36  | 
| 
 12MB  | 
 (2) 512K x 36  | 
 (2) 1M x 36  | 
| 
 12MB  | 
 (2) 1M x 36  | 
 (2) 512K x 36  | 
| 
 16MB  | 
 (2) 1M x 36  | 
 (2) 1M x 36  | 
| 
 16MB  | 
 (2) 2M x 36  | 
 NONE  | 
| 
 18MB  | 
 (2) 256K x 36  | 
 (2) 2M x 36  | 
| 
 18MB  | 
 (2) 2M x 36  | 
 (2) 256K x 36  | 
| 
 20MB  | 
 (2) 512K x 36  | 
 (2) 2M x 36  | 
| 
 20MB  | 
 (2) 2M x 36  | 
 (2) 512K x 36  | 
| 
 24MB  | 
 (2) 1M x 36  | 
 (2) 2M x 36  | 
| 
 24MB  | 
 (2) 2M x 36  | 
 (2) 1M x 36  | 
| 
 32MB  | 
 (2) 2M x 36  | 
 (2) 2M x 36  | 
| 
 32MB  | 
 (2) 4M x 36  | 
 NONE  | 
| 
 34MB  | 
 (2) 256K x 36  | 
 (2) 4M x 36  | 
| 
 34MB  | 
 (2) 4M x 36  | 
 (2) 256K x 36  | 
| 
 36MB  | 
 (2) 512K x 36  | 
 (2) 4M x 36  | 
| 
 36MB  | 
 (2) 4M x 36  | 
 (2) 512K x 36  | 
| 
 40MB  | 
 (2) 1M x 36  | 
 (2) 4M x 36  | 
| 
 40MB  | 
 (2) 4M x 36  | 
 (2) 1M x 36  | 
| 
 48MB  | 
 (2) 2M x 36  | 
 (2) 4M x 36  | 
| 
 48MB  | 
 (2) 4M x 36  | 
 (2) 2M x 36  | 
| 
 64MB  | 
 (2) 4M x 36  | 
 (2) 4M x 36  | 
| 
 64MB  | 
 (2) 8M x 36  | 
 NONE  | 
| 
 66MB  | 
 (2) 256K x 36  | 
 (2) 8M x 36  | 
| 
 66MB  | 
 (2) 8M x 36  | 
 (2) 256K x 36  | 
| 
 68MB  | 
 (2) 512K x 36  | 
 (2) 8M x 36  | 
| 
 68MB  | 
 (2) 8M x 36  | 
 (2) 512K x 36  | 
| 
 DRAM CONFIGURATION (CON’T)  | ||
| 
 Size  | 
 Bank 0  | 
 Bank 1  | 
| 
 72MB  | 
 (2) 1M x 36  | 
 (2) 8M x 36  | 
| 
 72MB  | 
 (2) 8M x 36  | 
 (2) 1M x 36  | 
| 
 80MB  | 
 (2) 2M x 36  | 
 (2) 8M x 36  | 
| 
 80MB  | 
 (2) 8M x 36  | 
 (2) 2M x 36  | 
| 
 96MB  | 
 (2) 4M x 36  | 
 (2) 8M x 36  | 
| 
 96MB  | 
 (2) 8M x 36  | 
 (2) 4M x 36  | 
| 
 128MB  | 
 (2) 8M x 36  | 
 (2) 8M x 36  | 
| 
 128MB  | 
 (2) 16M x 36  | 
 NONE  | 
| 
 130MB  | 
 (2) 256K x 36  | 
 (2) 16M x 36  | 
| 
 130MB  | 
 (2) 16M x 36  | 
 (2) 256K x 36  | 
| 
 132MB  | 
 (2) 512K x 36  | 
 (2) 16M x 36  | 
| 
 132MB  | 
 (2) 16M x 36  | 
 (2) 512K x 36  | 
| 
 136MB  | 
 (2) 1M x 36  | 
 (2) 16M x 36  | 
| 
 136MB  | 
 (2) 16M x 36  | 
 (2) 1M x 36  | 
| 
 144MB  | 
 (2) 2M x 36  | 
 (2) 16M x 36  | 
| 
 144MB  | 
 (2) 16M x 36  | 
 (2) 2M x 36  | 
| 
 160MB  | 
 (2) 4M x 36  | 
 (2) 16M x 36  | 
| 
 160MB  | 
 (2) 16M x 36  | 
 (2) 4M x 36  | 
| 
 192MB  | 
 (2) 8M x 36  | 
 (2) 16M x 36  | 
| 
 192MB  | 
 (2) 16M x 36  | 
 (2) 8M x 36  | 
| 
 256MB  | 
 (2) 16M x 36  | 
 (2) 16M x 36  | 
| 
 256MB  | 
 (2) 32M x 36  | 
 NONE  | 
| 
 258MB  | 
 (2) 256K x 36  | 
 (2) 32M x 36  | 
| 
 258MB  | 
 (2) 32M x 36  | 
 (2) 256K x 36  | 
| 
 260MB  | 
 (2) 512K x 36  | 
 (2) 32M x 36  | 
| 
 260MB  | 
 (2) 32M x 36  | 
 (2) 512K x 36  | 
| 
 264MB  | 
 (2) 1M x 36  | 
 (2) 32M x 36  | 
| 
 264MB  | 
 (2) 32M x 36  | 
 (2) 1M x 36  | 
| 
 272MB  | 
 (2) 2M x 36  | 
 (2) 32M x 36  | 
| 
 272MB  | 
 (2) 32M x 36  | 
 (2) 2M x 36  | 
| 
 288MB  | 
 (2) 4M x 36  | 
 (2) 32M x 36  | 
| 
 288MB  | 
 (2) 32M x 36  | 
 (2) 4M x 36  | 
| 
 320MB  | 
 (2) 8M x 36  | 
 (2) 32M x 36  | 
| 
 320MB  | 
 (2) 32M x 36  | 
 (2) 8M x 36  | 
| 
 384MB  | 
 (2) 16M x 36  | 
 (2) 32M x 36  | 
| 
 384MB  | 
 (2) 32M x 36  | 
 (2) 16M x 36  | 
| 
 512MB  | 
 (2) 32M x 36  | 
 (2) 32M x 36  | 
| 
 CACHE CONFIGURATION  | ||||
| 
 Size  | 
 Bank 0  | 
 Bank 1  | 
 TAG  | 
 SL2  | 
| 
 256KB  | 
 (4) 32K x 8  | 
 (4) 32K x 8  | 
 (1) 8K or (1) 32K x 8  | 
 Card not installed  | 
| 
 256KB  | 
 NONE  | 
 NONE  | 
 NONE  | 
 Card installed  | 
| 
 512KB  | 
 (4) 64K x 8  | 
 (4) 64K x 8  | 
 (1) 8K or (1) 32K x 8  | 
 Card not installed  | 
| 
 512KB  | 
 NONE  | 
 NONE  | 
 NONE  | 
 Card installed  | 
| 
 1MB  | 
 (4) 128K x 8  | 
 (4) 128K x 8  | 
 (1) 8K or (1) 32K x 8  | 
 Card not installed  | 
| 
 1MB  | 
 NONE  | 
 NONE  | 
 NONE  | 
 Card installed  | 
| 
 CACHE JUMPER CONFIGURATION  | ||
| 
 Size  | 
 JP10  | 
 JP11  | 
| 
 256KB  | 
 pins 1 & 2 closed  | 
 pins 1 & 2 closed  | 
| 
 512KB  | 
 pins 2 & 3 closed  | 
 pins 1 & 2 closed  | 
| 
 1MB  | 
 pins 2 & 3 closed  | 
 pins 2 & 3 closed  | 
| 
 CACHE TYPE CONFIGURATION  | ||||
| 
 Type  | 
 JP6  | 
 JP7  | 
 JP8  | 
 JP9  | 
| 
 3.3v cache  | 
 Open  | 
 Open  | 
 Closed  | 
 Closed  | 
| 
 Mixed mode cache  | 
 Closed  | 
 Closed  | 
 Open  | 
 Open  | 
| 
 CPU SPEED CONFIGURATION  | |||
| 
 Speed  | 
 JP12  | 
 JP13  | 
 JP14  | 
| 
 75MHz  | 
 pins 2 & 3 closed  | 
 pins 2 & 3 closed  | 
 pins 1 & 2 closed  | 
| 
 90MHz  | 
 pins 1 & 2 closed  | 
 pins 2 & 3 closed  | 
 pins 1 & 2 closed  | 
| 
 100MHz  | 
 pins 2 & 3 closed  | 
 pins 1 & 2 closed  | 
 pins 1 & 2 closed  | 
| 
 120MHz  | 
 pins 1 & 2 closed  | 
 pins 2 & 3 closed  | 
 pins 1 & 2 closed  | 
| 
 133MHz  | 
 pins 2 & 3 closed  | 
 pins 1 & 2 closed  | 
 pins 1 & 2 closed  | 
| 
 150MHz  | 
 pins 1 & 2 closed  | 
 pins 2 & 3 closed  | 
 pins 1 & 2 closed  | 
| 
 166MHz  | 
 pins 2 & 3 closed  | 
 pins 1 & 2 closed  | 
 pins 1 & 2 closed  | 
| 
 CPU CLOCK SPEED CONFIGURATION  | ||
| 
 Speed  | 
 JP20  | 
 JP21  | 
| 
 1.5x  | 
 Open  | 
 Open  | 
| 
 2x  | 
 Open  | 
 Closed  | 
| 
 2.5x  | 
 Closed  | 
 Closed  | 
| 
 3x  | 
 Closed  | 
 Open  | 
| 
 VOLTAGE REGULATOR CONFIGURATION  | ||||
| 
 Type  | 
 JP22  | 
 JP23  | 
 JP28  | 
 JP29  | 
| 
 STD/VR  | 
 Closed  | 
 Open  | 
 Closed  | 
 Open  | 
| 
 VRE  | 
 Open  | 
 Closed  | 
 Open  | 
 Closed  | 
| 
 VOLTAGE REGULATOR TYPE CONFIGURATION  | ||||
| 
 Setting  | 
 JP32  | 
 JP33  | 
 JP34  | 
 JP35  | 
| 
 Not installed  | 
 Closed  | 
 Closed  | 
 Closed  | 
 Closed  | 
| 
 Installed  | 
 Open  | 
 Open  | 
 Open  | 
 Open  | 
| 
 Note: The location of the above jumpers are unidentified.  | ||||
| 
 UART/IR CONFIGURATION  | ||
| 
 Speed  | 
 JP1A  | 
 JP1B  | 
| 
 UART2  | 
 pins 1 & 2 closed  | 
 pins 1 & 2 closed  | 
| 
 IR  | 
 pins 2 & 3 closed  | 
 pins 2 & 3 closed  |