ASUS COMPUTER INTERNATIONAL
PCI/I-486SP3
| 
 Processor  | 
 80486SX/80487SX/80486DX/ODP486SX/80486DX2/Pentium Overdrive  | 
| 
 Processor Speed  | 
 25/33/50(internal)/66(internal)MHz  | 
| 
 Chip Set  | 
 Intel  | 
| 
 Max. Onboard DRAM  | 
 128MB  | 
| 
 Cache  | 
 128/256/512KB  | 
| 
 BIOS  | 
 Award  | 
| 
 Dimensions  | 
 330mm x 218mm  | 
| 
 I/O Options  | 
 32-bit PCI local bus slots (3), floppy drive interface, IDE interface, parallel port, SCSI interface, serial ports (2)  | 
| 
 NPU Options  | 
 None  | 

| 
 CONNECTIONS  | 
|||
| 
 Purpose  | 
 Location  | 
 Purpose  | 
 Location  | 
| 
 Power LED & keylock  | 
 CON1  | 
 IDE interface LED  | 
 J22  | 
| 
 Speaker  | 
 CON2  | 
 32-bit PCI bus slot  | 
 PCI1  | 
| 
 Turbo LED  | 
 CON3  | 
 32-bit PCI bus slot  | 
 PCI2  | 
| 
 Reset switch  | 
 CON4  | 
 32-bit PCI bus slot  | 
 PCI3  | 
| 
 Turbo switch  | 
 CON5  | 
 Serial port 1  | 
 S1  | 
| 
 Floppy drive interface  | 
 FDD  | 
 Serial port 2  | 
 S2  | 
| 
 IDE interface  | 
 IDE  | 
 Parallel port  | 
 S3  | 
| 
 SCSI interface LED  | 
 J7  | 
 SCSI interface  | 
 SCSI  | 
| 
 USER CONFIGURABLE SETTINGS  | 
|||
| 
 Function  | 
 Jumper  | 
 Position  | 
|
| 
 »  | 
 BIOS ROM select (2) 27512  | 
 J6  | 
 pins 2 & 3 closed  | 
| 
 
  | 
 BIOS ROM select (1) 271000  | 
 J6  | 
 pins 1 & 2 closed  | 
| 
 »  | 
 IDE I/O Channel Ready disabled  | 
 J16  | 
 Open  | 
| 
 
  | 
 IDE I/O Channel Ready enabled  | 
 J16  | 
 Closed  | 
| 
 »  | 
 Factory configured - do not alter  | 
 J23  | 
 Closed  | 
| 
 »  | 
 Factory configured - do not alter  | 
 J24  | 
 Closed  | 
| 
 »  | 
 Secondary cache speed 0 wait states  | 
 J33  | 
 pins 1 & 2 closed  | 
| 
 
  | 
 Secondary cache speed 1 wait state  | 
 J33  | 
 pins 2 & 3 closed  | 
| 
 »  | 
 Factory configured - do not alter  | 
 J34  | 
 pins 2 & 3 closed  | 
| 
 »  | 
 Factory configured - do not alter  | 
 J35  | 
 pins 1 & 2 closed  | 
| 
 »  | 
 Secondary cache enabled  | 
 J36  | 
 pins 1 & 2 closed  | 
| 
 
  | 
 Secondary cache disabled  | 
 J36  | 
 pins 2 & 3 closed  | 
| 
 »  | 
 Factory configured - do not alter  | 
 J47  | 
 pins 2 & 3 closed  | 
| 
 »  | 
 BIOS type select EPROM  | 
 J48  | 
 pins 2 & 3 closed  | 
| 
 
  | 
 BIOS type select Flash BIOS  | 
 J48  | 
 pins 1 & 2 closed  | 
| 
 »  | 
 Onboard SCSI interface enabled  | 
 J51  | 
 Open  | 
| 
 
  | 
 Onboard SCSI interface disabled  | 
 J51  | 
 Closed  | 
| 
 »  | 
 Floppy, IDE, Parallel, and Serial ports enabled  | 
 JSMC  | 
 pins 1 & 2 closed  | 
| 
 
  | 
 Floppy, IDE, Parallel, and Serial ports disabled  | 
 JSMC  | 
 pins 2 & 3 closed  | 
| 
 ONBOARD SCSI INTERFACE CONFIGURATION  | 
||
| 
 Onboard SCSI  | 
 J17  | 
 J18  | 
| 
 Present (PCI2 is slave)  | 
 Open  | 
 Open  | 
| 
 Absent (PCI2 is master)  | 
 Closed  | 
 Closed  | 
| 
 INTERRUPT IRQ5 CONFIGURATION  | 
|
| 
 Bus  | 
 J3  | 
| 
 ISA  | 
 pins 1 & 2 closed  | 
| 
 PCI (INT A)  | 
 pins 2 & 3 closed  | 
| 
 INTERRUPT IRQ9 CONFIGURATION  | 
|
| 
 Bus/Device  | 
 J1 & J2  | 
| 
 ISA  | 
 J1/pin 1 & J2/pin 1 closed  | 
| 
 PCI (INT D)  | 
 J1/pin 3 & J2/pin 3 closed  | 
| 
 SCSI  | 
 J1/pin 2 & J2/pin 2 closed  | 
| 
 INTERRUPT IRQ11 CONFIGURATION  | 
|
| 
 Bus  | 
 J4  | 
| 
 ISA  | 
 pins 1 & 2 closed  | 
| 
 PCI (INT B)  | 
 pins 2 & 3 closed  | 
| 
 Note: The PCI bus can have only one IRQ on INT B (i.e. you can use IRQ11 or IRQ14 but not both).  | 
|
| 
 INTERRUPT IRQ14 CONFIGURATION  | 
||
| 
 Bus  | 
 J49  | 
 J50  | 
| 
 ISA  | 
 pins 2 & 3 closed  | 
 open  | 
| 
 PCI (INT A)  | 
 pins 1 & 2 closed  | 
 open  | 
| 
 PCI (INT B)  | 
 open  | 
 closed  | 
| 
 Note: The PCI bus can have only one IRQ on INT B (i.e. you can use IRQ11 or IRQ14 but not both). The PCI bus can have only one IRQ on INT A (i.e. you can use IRQ5 or IRQ14 but not both). The PCI bus can have only one IRQ on INT B (i.e. you can use IRQ11 or IRQ14 but not both). | 
||
| 
 INTERRUPT IRQ15 CONFIGURATION  | 
|
| 
 Bus  | 
 J5  | 
| 
 ISA  | 
 pins 1 & 2 closed  | 
| 
 PCI (INT C)  | 
 pins 2 & 3 closed  | 
| 
 CACHE CONFIGURATION  | 
|||
| 
 Size  | 
 Bank 0  | 
 Bank 1  | 
 TAG  | 
| 
 128KB  | 
 (4) 32K x 8  | 
 NONE  | 
 (1) 8K x 8  | 
| 
 256KB  | 
 (4) 32K x 8  | 
 (4) 32K x 8  | 
 (1) 32K x 8  | 
| 
 512KB  | 
 (4) 128K x 8  | 
 NONE  | 
 (1) 32K x 8  | 
| 
 CACHE JUMPER CONFIGURATION  | 
||||
| 
 Size  | 
 J25  | 
 J26  | 
 J37  | 
 J38  | 
| 
 128KB  | 
 pins 2 & 3 closed  | 
 pins 2 & 3 closed  | 
 pins 1 & 2 closed  | 
 pins 2 & 3 closed  | 
| 
 256KB  | 
 pins 2 & 3 closed  | 
 pins 1 & 2 closed  | 
 pins 2 & 3 closed  | 
 pins 1 & 2 closed  | 
| 
 512KB  | 
 pins 1 & 2 closed  | 
 pins 1 & 2 closed  | 
 pins 1 & 2 closed  | 
 pins 1 & 2 closed  | 
| 
 Note:Pins designated should be in the closed position.  | 
||||
| 
 CPU TYPE CONFIGURATION  | 
|||||
| 
 CPU  | 
 Socket  | 
 CP1  | 
 CP2  | 
 CP3  | 
 J43  | 
| 
 80486SX  | 
 PGA  | 
 pins 2 & 3  | 
 pins 1 & 2  | 
 Open  | 
 Closed  | 
| 
 80486SX  | 
 PQFP  | 
 1 & 2 and 3 & 4  | 
 pins 2 & 3  | 
 pins 2 & 3  | 
 Closed  | 
| 
 80487SX  | 
 PGA  | 
 1 & 2 and 3 & 4  | 
 pins 2 & 3  | 
 pins 2 & 3  | 
 Closed  | 
| 
 80486DX  | 
 PGA  | 
 1 & 2 and 3 & 4  | 
 pins 1 & 2  | 
 pins 1 & 2  | 
 Closed  | 
| 
 ODP486SX  | 
 PGA  | 
 1 & 2 and 3 & 4  | 
 pins 2 & 3  | 
 pins 2 & 3  | 
 Closed  | 
| 
 80486DX2  | 
 PGA  | 
 1 & 2 and 3 & 4  | 
 pins 1 & 2  | 
 pins 1 & 2  | 
 Closed  | 
| 
 Pentium Overdrive  | 
 PGA  | 
 1 & 2 and 3 & 4  | 
 pins 2 & 3  | 
 pins 2 & 3  | 
 Open  | 
| 
 Note:Pins designated should be in the closed position.  | 
|||||
| 
 CPU SPEED CONFIGURATION  | 
|||
| 
 Speed  | 
 CS1  | 
 J31  | 
 J32  | 
| 
 25MHz  | 
 pins 2 & 3 closed  | 
 pins 2 & 3 closed  | 
 pins 2 & 3 closed  | 
| 
 33MHz  | 
 pins 1 & 2 closed  | 
 pins 1 & 2 closed  | 
 pins 2 & 3 closed  | 
| 
 50i MHz  | 
 pins 2 & 3 closed  | 
 pins 2 & 3 closed  | 
 pins 2 & 3 closed  | 
| 
 66i MHz  | 
 pins 1 & 2 closed  | 
 pins 1 & 2 closed  | 
 pins 2 & 3 closed  | 
| 
 DRAM CONFIGURATION  | 
||||
| 
 Size  | 
 Bank 0  | 
 Bank 1  | 
 Bank 2  | 
 Bank 3  | 
| 
 2MB  | 
 (1) 256K x 36  | 
 (1) 256K x 36  | 
 NONE  | 
 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  | 
| 
 6MB  | 
 (1) 256K x 36  | 
 (1) 256K x 36  | 
 (1) 512K x 36  | 
 (1) 512K x 36  | 
| 
 6MB  | 
 (1) 512K x 36  | 
 (1) 512K x 36  | 
 (1) 256K x 36  | 
 (1) 256K 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  | 
| 
 10MB  | 
 (1) 256K x 36  | 
 (1) 256K x 36  | 
 (1) 1M x 36  | 
 (1) 1M x 36  | 
| 
 10MB  | 
 (1) 1M x 36  | 
 (1) 1M x 36  | 
 (1) 256K x 36  | 
 (1) 256K x 36  | 
| 
 12MB  | 
 (1) 512K x 36  | 
 (1) 512K x 36  | 
 (1) 1M x 36  | 
 (1) 1M x 36  | 
| 
 12MB  | 
 (1) 1M x 36  | 
 (1) 1M x 36  | 
 (1) 512K x 36  | 
 (1) 512K 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  | 
| 
 18MB  | 
 (1) 256K x 36  | 
 (1) 256K x 36  | 
 (1) 2M x 36  | 
 (1) 2M x 36  | 
| 
 18MB  | 
 (1) 2M x 36  | 
 (1) 2M x 36  | 
 (1) 256K x 36  | 
 (1) 256K x 36  | 
| 
 20MB  | 
 (1) 512K x 36  | 
 (1) 512K x 36  | 
 (1) 2M x 36  | 
 (1) 2M x 36  | 
| 
 20MB  | 
 (1) 2M x 36  | 
 (1) 2M x 36  | 
 (1) 512K x 36  | 
 (1) 512K x 36  | 
| 
 24MB  | 
 (1) 1M x 36  | 
 (1) 1M x 36  | 
 (1) 2M x 36  | 
 (1) 2M x 36  | 
| 
 24MB  | 
 (1) 2M x 36  | 
 (1) 2M x 36  | 
 (1) 1M x 36  | 
 (1) 1M 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  | 
| 
 34MB  | 
 (1) 256K x 36  | 
 (1) 256K x 36  | 
 (1) 4M x 36  | 
 (1) 4M x 36  | 
| 
 34MB  | 
 (1) 4M x 36  | 
 (1) 4M x 36  | 
 (1) 256K x 36  | 
 (1) 256K x 36  | 
| 
 36MB  | 
 (1) 512K x 36  | 
 (1) 512K x 36  | 
 (1) 4M x 36  | 
 (1) 4M x 36  | 
| 
 36MB  | 
 (1) 4M x 36  | 
 (1) 4M x 36  | 
 (1) 512K x 36  | 
 (1) 512K x 36  | 
| 
 40MB  | 
 (1) 1M x 36  | 
 (1) 1M x 36  | 
 (1) 4M x 36  | 
 (1) 4M x 36  | 
| 
 40MB  | 
 (1) 4M x 36  | 
 (1) 4M x 36  | 
 (1) 1M x 36  | 
 (1) 1M x 36  | 
| 
 48MB  | 
 (1) 2M x 36  | 
 (1) 2M x 36  | 
 (1) 4M x 36  | 
 (1) 4M x 36  | 
| 
 48MB  | 
 (1) 4M x 36  | 
 (1) 4M x 36  | 
 (1) 2M x 36  | 
 (1) 2M 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  | 
| 
 66MB  | 
 (1) 256K x 36  | 
 (1) 256K x 36  | 
 (1) 8M x 36  | 
 (1) 8M x 36  | 
| 
 66MB  | 
 (1) 8M x 36  | 
 (1) 8M x 36  | 
 (1) 256K x 36  | 
 (1) 256K x 36  | 
| 
 68MB  | 
 (1) 512K x 36  | 
 (1) 512K x 36  | 
 (1) 8M x 36  | 
 (1) 8M x 36  | 
| 
 68MB  | 
 (1) 8M x 36  | 
 (1) 8M x 36  | 
 (1) 512K x 36  | 
 (1) 512K x 36  | 
| 
 72MB  | 
 (1) 1M x 36  | 
 (1) 1M x 36  | 
 (1) 8M x 36  | 
 (1) 8M x 36  | 
| 
 72MB  | 
 (1) 8M x 36  | 
 (1) 8M x 36  | 
 (1) 1M x 36  | 
 (1) 1M x 36  | 
| 
 80MB  | 
 (1) 2M x 36  | 
 (1) 2M x 36  | 
 (1) 8M x 36  | 
 (1) 8M x 36  | 
| 
 80MB  | 
 (1) 8M x 36  | 
 (1) 8M x 36  | 
 (1) 2M x 36  | 
 (1) 2M x 36  | 
| 
 96MB  | 
 (1) 4M x 36  | 
 (1) 4M x 36  | 
 (1) 8M x 36  | 
 (1) 8M x 36  | 
| 
 96MB  | 
 (1) 8M x 36  | 
 (1) 8M x 36  | 
 (1) 4M x 36  | 
 (1) 4M x 36  | 
| 
 128MB  | 
 (1) 8M x 36  | 
 (1) 8M x 36  | 
 (1) 8M x 36  | 
 (1) 8M x 36  |