SOYO COMPUTER CO., LTD.
PENTIUM (P54C) PCI MAINBOARD
| 
 Processor  | 
 Pentium  | 
| 
 Processor Speed  | 
 90/100MHz  | 
| 
 Chip Set  | 
 Unidentified  | 
| 
 Max. Onboard DRAM  | 
 512MB  | 
| 
 Cache  | 
 256/512KB  | 
| 
 BIOS  | 
 Award  | 
| 
 Dimensions  | 
 330mm x 218mm  | 
| 
 I/O Options  | 
 32-bit PCI bus slots (4), green PC connector  | 
| 
 NPU Options  | 
 None  | 
| 
 CONNECTIONS  | |||
| 
 Purpose  | 
 Location  | 
 Purpose  | 
 Location  | 
| 
 Power LED & keylock  | 
 J17  | 
 Green PC connector  | 
 J21  | 
| 
 Speaker  | 
 J18  | 
 Green PC LED  | 
 J22  | 
| 
 Reset switch  | 
 J19  | 
 32-bit PCI bus slots  | 
 SL1 - SL4  | 
| 
 USER CONFIGURABLE SETTINGS  | |||
| 
 Function  | 
 Jumper  | 
 Position  | |
| 
 »  | 
 Ppeline address disabled  | 
 J24  | 
 Open  | 
| 
 Pipeline address enabled  | 
 J24  | 
 Closed  | |
| 
 »  | 
 Cache type select write back  | 
 J29  | 
 Open  | 
| 
 Cache type select write through  | 
 J29  | 
 Closed  | |
| 
 »  | 
 Monitor type select color  | 
 JP3  | 
 Closed  | 
| 
 Monitor type select monochrome  | 
 JP3  | 
 Open  | |
| 
 »  | 
 CMOS memory normal operation  | 
 JP5  | 
 Open  | 
| 
 CMOS memory clear  | 
 JP5  | 
 Closed  | |
| 
 »  | 
 Factory configured - do not alter  | 
 JP36  | 
 Closed  | 
| 
 »  | 
 Factory configured - do not alter  | 
 JP37  | 
 Closed  | 
| 
 »  | 
 Factory configured - do not alter  | 
 JP38  | 
 Closed  | 
| 
 »  | 
 Factory configured - do not alter  | 
 JP39  | 
 Open  | 
| 
 »  | 
 Factory configured - do not alter  | 
 JP40  | 
 Open  | 
| 
 »  | 
 Factory configured - do not alter  | 
 JP41  | 
 Open  | 
| 
 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  | 
| 
 8MB  | 
 (2) 512K x 36  | 
 (2) 512K x 36  | 
| 
 8MB  | 
 (2) 1M x 36  | 
 NONE  | 
| 
 10MB  | 
 (2) 256K x 36  | 
 (2) 1M 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  | 
| 
 20MB  | 
 (2) 512K x 36  | 
 (2) 2M 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  | 
| 
 48MB  | 
 (2) 2M x 36  | 
 (2) 4M x 36  | 
| 
 64MB  | 
 (2) 8M x 36  | 
 NONE  | 
| 
 64MB  | 
 (2) 4M x 36  | 
 (2) 4M x 36  | 
| 
 68MB  | 
 (2) 512K x 36  | 
 (2) 8M x 36  | 
| 
 80MB  | 
 (2) 2M x 36  | 
 (2) 8M x 36  | 
| 
 96MB  | 
 (2) 4M x 36  | 
 (2) 8M x 36  | 
| 
 128MB  | 
 (2) 8M x 36  | 
 (2) 8M x 36  | 
| 
 128MB  | 
 (2) 16M x 36  | 
 NONE  | 
| 
 256MB  | 
 (2) 16M x 36  | 
 (2) 16M x 36  | 
| 
 256MB  | 
 (2) 32M x 36  | 
 NONE  | 
| 
 512MB  | 
 (2) 32M x 36  | 
 (2) 32M x 36  | 
| 
 CACHE CONFIGURATION  | ||
| 
 Size  | 
 Bank 0  | 
 Bank 1  | 
| 
 256KB  | 
 (4) 32K x 8  | 
 (4) 32K x 8  | 
| 
 512KB  | 
 (4) 64K x 8  | 
 (4) 64K x 8  | 
| 
 CACHE JUMPER CONFIGURATION  | ||
| 
 Size  | 
 J25  | 
 J26  | 
| 
 256KB  | 
 pins 2 & 3 closed  | 
 pins 1 & 2 closed  | 
| 
 512KB  | 
 pins 2 & 3 closed  | 
 pins 2 & 3 closed  | 
| 
 CPU SPEED CONFIGURATION  | |||
| 
 Speed  | 
 JP31  | 
 JP34  | 
 JP35  | 
| 
 90MHz  | 
 Closed  | 
 Open  | 
 Open  | 
| 
 100MHz  | 
 Open  | 
 Closed  | 
 Closed  | 
| 
 PCI IRQ CONFIGURATION (IRQ 10)  | ||
| 
 PIRQ  | 
 J44  | 
 J51  | 
| 
 PIRQ 0  | 
 Open  | 
 pins 1 & 2 closed  | 
| 
 PIRQ 1  | 
 Open  | 
 pins 2 & 3 closed  | 
| 
 PIRQ 2  | 
 pins 1 & 2 closed  | 
 Open  | 
| 
 PIRQ 3  | 
 pins 2 & 3 closed  | 
 Open  | 
| 
 PCI IRQ CONFIGURATION (IRQ 11)  | ||
| 
 PIRQ  | 
 J45  | 
 J52  | 
| 
 PIRQ 0  | 
 Open  | 
 pins 1 & 2 closed  | 
| 
 PIRQ 1  | 
 Open  | 
 pins 2 & 3 closed  | 
| 
 PIRQ 2  | 
 pins 1 & 2 closed  | 
 Open  | 
| 
 PIRQ 3  | 
 pins 2 & 3 closed  | 
 Open  | 
| 
 PCI IRQ CONFIGURATION (IRQ 12)  | ||
| 
 PIRQ  | 
 J46  | 
 J53  | 
| 
 PIRQ 0  | 
 Open  | 
 pins 1 & 2 closed  | 
| 
 PIRQ 1  | 
 Open  | 
 pins 2 & 3 closed  | 
| 
 PIRQ 2  | 
 pins 1 & 2 closed  | 
 Open  | 
| 
 PIRQ 3  | 
 pins 2 & 3 closed  | 
 Open  | 
| 
 PCI IRQ CONFIGURATION (IRQ 14)  | ||
| 
 PIRQ  | 
 J47  | 
 J54  | 
| 
 PIRQ 0  | 
 Open  | 
 pins 1 & 2 closed  | 
| 
 PIRQ 1  | 
 Open  | 
 pins 2 & 3 closed  | 
| 
 PIRQ 2  | 
 pins 1 & 2 closed  | 
 Open  | 
| 
 PIRQ 3  | 
 pins 2 & 3 closed  | 
 Open  | 
| 
 PCI IRQ CONFIGURATION (IRQ 15)  | ||
| 
 PIRQ  | 
 J48  | 
 J55  | 
| 
 PIRQ 0  | 
 Open  | 
 pins 1 & 2 closed  | 
| 
 PIRQ 1  | 
 Open  | 
 pins 2 & 3 closed  | 
| 
 PIRQ 2  | 
 pins 1 & 2 closed  | 
 Open  | 
| 
 PIRQ 3  | 
 pins 2 & 3 closed  | 
 Open  | 
| 
 HOST BUS PREQUENCY CONFIGURATION  | |
| 
 Setting  | 
 J30  | 
| 
 Full speed  | 
 Open  | 
| 
 2/3 speed  | 
 pins 1 & 2 closed  | 
| 
 1/2 speed  | 
 pins 2 & 3 closed  |