SOYO TECHNOLOGY COMPANY, LTD.
PENTIUM (P54C) EISA 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 slots (4) |
NPU Options | None |

CONNECTIONS | |||
Purpose | Location | Purpose | Location |
Power LED & keylock | J17 | Turbo LED | J22 |
Speaker | J18 | 32-bit PCI slots | PCI1 - PCI4 |
Reset switch | J19 | ||
USER CONFIGURABLE SETTINGS | |||
Function | Jumper | Position | |
» | Monitor type select color | JP3 | Closed |
Monitor type select monochrome | JP3 | Open | |
» | Pipeline mode disabled | JP7 | Open |
Pipeline mode enabled | JP7 | Closed | |
» | CPU cache type select write back | JP12 | Open |
CPU cache type select write through | JP12 | Closed | |
» | Single processor enabled | JP16 | pins 1 & 2 closed |
Dual processor enabled | JP16 | pins 2 & 3 closed | |
DRAM CONFIGURATION | |||
Size | Bank 0 | Bank 1 | Bank 2 |
2MB | (2) 256K x 36 | NONE | NONE |
4MB | (2) 256K x 36 | (2) 256K x 36 | NONE |
4MB | (2) 512K x 36 | NONE | NONE |
6MB | (2) 256K x 36 | (2) 256K x 36 | (2) 256K x 36 |
8MB | (2) 512K x 36 | (2) 512K x 36 | NONE |
8MB | (2) 1M x 36 | NONE | NONE |
12MB | (2) 512K x 36 | (2) 512K x 36 | (2) 512K x 36 |
12MB | (2) 1M x 36 | (2) 512K x 36 | NONE |
16MB | (2) 1M x 36 | (2) 512K x 36 | (2) 512K x 36 |
16MB | (2) 1M x 36 | (2) 1M x 36 | NONE |
16MB | (2) 2M x 36 | NONE | NONE |
20MB | (2) 1M x 36 | (2) 1M x 36 | (2) 512K x 36 |
20MB | (2) 2M x 36 | (2) 512K x 36 | NONE |
24MB | (2) 1M x 36 | (2) 1M x 36 | (2) 1M x 36 |
24MB | (2) 2M x 36 | (2) 512K x 36 | (2) 512K x 36 |
24MB | (2) 2M x 36 | (2) 1M x 36 | NONE |
32MB | (2) 4M x 36 | NONE | NONE |
32MB | (2) 2M x 36 | (2) 2M x 36 | NONE |
32MB | (2) 2M x 36 | (2) 1M x 36 | (2) 1M x 36 |
48MB | (2) 4M x 36 | (2) 2M x 36 | NONE |
48MB | (2) 4M x 36 | (2) 1M x 36 | (2) 1M x 36 |
48MB | (2) 2M x 36 | (2) 2M x 36 | (2) 2M x 36 |
64MB | (2) 8M x 36 | NONE | NONE |
64MB | (2) 4M x 36 | (2) 4M x 36 | NONE |
64MB | (2) 4M x 36 | (2) 2M x 36 | (2) 2M x 36 |
68MB | (2) 512K x 36 | (2) 8M x 36 | NONE |
80MB | (2) 2M x 36 | (2) 8M x 36 | NONE |
96MB | (2) 8M x 36 | (2) 4M x 36 | NONE |
96MB | (2) 8M x 36 | (2) 2M x 36 | (2) 2M x 36 |
96MB | (2) 4M x 36 | (2) 4M x 36 | (2) 4M x 36 |
128MB | (2) 8M x 36 | (2) 8M x 36 | NONE |
128MB | (2) 8M x 36 | (2) 4M x 36 | (2) 4M x 36 |
128MB | (2) 16M x 36 | NONE | NONE |
192MB | (2) 8M x 36 | (2) 8M x 36 | (2) 8M x 36 |
DRAM CONFIGURATION (CON’T) | |||
Size | Bank 0 | Bank 1 | Bank 2 |
256MB | (2) 16M x 36 | (2) 16M x 36 | NONE |
256MB | (2) 32M x 36 | NONE | NONE |
384MB | (2) 16M x 36 | (2) 16M x 36 | (2) 16M x 36 |
512MB | (2) 32M x 36 | (2) 32M x 36 | NONE |
DRAM VOLTAGE CONFIGURATION | ||||||
Setting | J4 | J5 | J6 | J7 | J8 | J9 |
3.33v SRAM | Closed | Closed | Closed | Open | Open | Open |
Mixed SRAM | Open | Open | Open | Closed | Closed | Closed |
CACHE CONFIGURATION | |
Size | Bank 1 |
256KB | (8) 32K x 8 |
512KB | (8) 64K x 8 |
CACHE JUMPER CONFIGURATION | |
Size | JP15 |
256KB | pins 2 & 3 closed |
512KB | pins 1 & 2 closed |
CPU SPEED CONFIGURATION | |||
Speed | JP9 | JP10 | JP11 |
90MHz | Open | Closed | Open |
100MHz | Closed | Open | Closed |
BIOS CONFIGURATION | ||
Setting | JP40 | JP41 |
EPROM | pins 1 & 2 closed | pins 1 & 2 closed |
Flash | pins 2 & 3 closed | pins 2 & 3 closed |
PCI IRQ CONFIGURATION | ||||
Setting | JP30 | JP31 | JP32 | JP33 |
IRQ9/PIRQ0 | pins 1 & 2 closed | Open | Open | Open |
IRQ9/PIRQ1 | pins 2 & 3 closed | Open | Open | Open |
IRQ10/PIRQ0 | Open | pins 1 & 2 closed | Open | Open |
IRQ10/PIRQ1 | Open | pins 2 & 3 closed | Open | Open |
IRQ14/PIRQ0 | Open | Open | pins 1 & 2 closed | Open |
IRQ14/PIRQ1 | Open | Open | pins 2 & 3 closed | Open |
IRQ15/PIRQ0 | Open | Open | Open | pins 1 & 2 closed |
IRQ15/PIRQ1 | Open | Open | Open | pins 2 & 3 closed |
PCI IRQ CONFIGURATION | ||||
Setting | JP34 | JP35 | JP36 | JP37 |
IRQ9/PIRQ2 | pins 1 & 2 closed | Open | Open | Open |
IRQ9/PIRQ3 | pins 2 & 3 closed | Open | Open | Open |
IRQ10/PIRQ2 | Open | pins 1 & 2 closed | Open | Open |
IRQ10/PIRQ3 | Open | pins 2 & 3 closed | Open | Open |
IRQ14/PIRQ2 | Open | Open | pins 1 & 2 closed | Open |
IRQ14/PIRQ3 | Open | Open | pins 2 & 3 closed | Open |
IRQ15/PIRQ2 | Open | Open | Open | pins 1 & 2 closed |
IRQ15/PIRQ3 | Open | Open | Open | pins 2 & 3 closed |