AMERICAN MEGATRENDS, INC.
EXCALIBUR PCI-II PENTIUM ISA
Processor | Pentium |
Processor Speed | 60/66MHz |
Chip Set | AMI |
Max. Onboard DRAM | 128MB |
Cache | 256/512KB |
BIOS | AMI |
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) |
NPU Options | None |

CONNECTIONS | |||
Purpose | Location | Purpose | Location |
Green PC connector | J1 | IDE interface LED | J28 |
PS/2 mouse port | J13 | Serial port 1 | J4 |
Power LED & keylock | J15 | Serial port 2 | J5 |
Speaker | J17 | Parallel port | J7 |
Reset switch | J18 | Floppy drive interface | J8 |
Turbo switch | J20 | IDE interface (secondary) | J10 |
Turbo LED | J24 | IDE interface (primary) | J11 |
Green PC connector | J25 | 32-bit PCI slots | SL1 - SL4 |
USER CONFIGURABLE SETTINGS | |||
Function | Jumper | Position | |
» | Cache write mode select write back | J29 | Open |
Cache write mode select write through | J29 | Closed | |
» | Parallel port IRQ select IRQ7 | J37 | pins 1 & 2 closed |
Parallel port IRQ select IRQ5 | J37 | pins 2 & 3 closed | |
» | Serial port 2 IRQ select IRQ3 | J38 | pins 1 & 2 closed |
Serial port 2 IRQ select IRQ4 | J38 | pins 2 & 3 closed | |
» | Serial port 1 IRQ select IRQ4 | J39 | pins 1 & 2 closed |
Serial port 1 IRQ select IRQ3 | J39 | pins 2 & 3 closed | |
» | On board mouse enabled | J40 | pins 1 & 2 closed |
On board mouse disabled | J40 | pins 2 & 3 closed | |
» | Factory configured - do not alter | J47 | Open |
» | CMOS memory normal operation | J48 | Open |
CMOS memory clear | J48 | Closed | |
» | Factory configured - do not alter | J51 | 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 |
16MB | (2) 1M x 36 | (2) 1M x 36 |
16MB | (2) 2M x 36 | NONE |
20MB | (2) 512K x 36 | (2) 2M x 36 |
32MB | (2) 2M x 36 | (2) 2M x 36 |
32MB | (2) 4M x 36 | NONE |
36MB | (2) 512K x 36 | (2) 4M x 36 |
40MB | (2) 1M x 36 | (2) 4M x 36 |
48MB | (2) 2M x 36 | (2) 4M x 36 |
64MB | (2) 4M x 36 | (2) 4M x 36 |
64MB | (2) 8M x 36 | NONE |
80MB | (2) 2M x 36 | (2) 8M x 36 |
128MB | (2) 8M x 36 | (2) 8M x 36 |
128MB | (2) 16M x 36 | NONE |
CACHE CONFIGURATION | |
Size | Bank 0 |
256KB | (8) 32K x 8 |
512KB | (8) 64K x 8 |
CACHE JUMPER CONFIGURATION | |||
Size | J21 | J22 | J23 |
256KB | pins 1 & 2 closed | pins 1 & 2 closed | pins 1 & 2 closed |
512KB | pins 2 & 3 closed | pins 2 & 3 closed | pins 2 & 3 closed |
CPU OUTPUT SIGNAL BUFFER CONFIGURATION | ||
Type | J30 | J32 |
Normal system | Open | Open |
Loaded system | Closed | Open |
Extra loaded system | Closed | Closed |
Note: The location of jumpers J30 & J32 are unidentified. | ||
DMA CHANNEL CONFIGURATION | ||
DMA channel | J43 | J44 |
None | Open | Open |
DRQ0 | pins 1 & 2 closed | pins 1 & 2 closed |
DRQ1 | pins 3 & 4 closed | pins 3 & 4 closed |
DRQ3 | pins 5 & 6 closed | pins 5 & 6 closed |