AMERICAN MEGATRENDS, INC.
MERLIN DP
Processor |
Pentium Pro |
Processor Speed |
150/166/180/200MHz |
Chip Set |
Intel |
Video Chip Set |
None |
Maximum Onboard Memory |
512MB (EDO supported) |
Maximum Video Memory |
None |
Cache |
256/512KB (located on Pentium Pro CPU) |
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 interface, serial ports (2), VRM connectors (2), USB connectors (2) |
NPU Options |
None |
CONNECTIONS | |||
Purpose |
Location |
Purpose |
Location |
Floppy drive interface |
J1 |
USB connector 2 |
J14 |
Parallel port |
J2 |
Green PC connector |
J29 |
Chassis fan power |
J3 |
Turbo LED |
J30 |
Chassis fan power |
J5 |
Reset switch |
J32 |
PS/2 mouse interface |
J7 |
IDE interface LED |
J34 |
Serial port 1 |
J8 |
Speaker |
J35 |
Serial port 2 |
J9 |
Power LED & keylock |
J36 |
IDE interface 2 |
J10 |
32-bit PCI slots |
PC1 - PC4 |
IDE interface 1 |
J12 |
VRM connector |
VRM |
USB connector 1 |
J13 |
VRM connector |
VRM |
USER CONFIGURABLE SETTINGS | |||
Function |
Label |
Position | |
» |
Factory configured - do not alter |
J20 |
Unidentified |
PS/2 mouse IRQ12 enabled |
J23 |
Pins 1 & 2 closed | |
PS/2 mouse IRQ12 disabled |
J23 |
Pins 2 & 3 closed | |
» |
Factory configured - do not alter |
J31 |
Unidentified |
» |
Factory configured - do not alter |
J33 |
Unidentified |
DRAM CONFIGURATION | ||
Size |
Bank 0 |
Bank 1 |
8MB |
(2) 1M x 36 |
None |
16MB |
(2) 2M x 36 |
None |
16MB |
(2) 1M x 36 |
(2) 1M x 36 |
24MB |
(2) 2M x 36 |
(2) 1M x 36 |
32MB |
(2) 4M x 36 |
None |
32MB |
(2) 2M x 36 |
(2) 2M x 36 |
40MB |
(2) 4M x 36 |
(2) 1M 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 |
72MB |
(2) 8M x 36 |
(2) 1M x 36 |
80MB |
(2) 2M x 36 |
(2) 8M x 36 |
96MB |
(2) 8M x 36 |
(2) 4M x 36 |
128MB |
(2) 16M x 36 |
None |
128MB |
(2) 8M x 36 |
(2) 8M x 36 |
136MB |
(2) 16M x 36 |
(2) 1M x 36 |
144MB |
(2) 16M x 36 |
(2) 2M x 36 |
160MB |
(2) 16M x 36 |
(2) 4M x 36 |
192MB |
(2) 16M x 36 |
(2) 8M x 36 |
256MB |
(2) 32M x 36 |
None |
256MB |
(2) 16M x 36 |
(2) 16M x 36 |
DRAM CONFIGURATION (CON'T) | ||
Size |
Bank 0 |
Bank 1 |
264MB |
(2) 32M x 36 |
(2) 1M x 36 |
272MB |
(2) 32M x 36 |
(2) 2M x 36 |
288MB |
(2) 32M x 36 |
(2) 4M x 36 |
320MB |
(2) 32M x 36 |
(2) 8M x 36 |
384MB |
(2) 32M x 36 |
(2) 16M x 36 |
512MB |
(2) 32M x 36 |
(2) 32M x 36 |
Note: Board accepts EDO memory. Board also accepts x 32 SIMMs. Banks are interchangeable. |
CACHE CONFIGURATION |
Note: 256KB/512KB cache is located on the Pentium Pro CPU. |
CPU SPEED SELECTION | ||||||
CPU speed |
Clock speed |
Multiplier |
J16 |
J17 |
J22 |
J26 |
150MHz |
60MHz |
2.5x |
Open |
Closed |
1 & 2 |
3 & 4, 5 & 6, 7 & 8 |
166MHz |
66MHz |
2.5x |
Closed |
Open |
1 & 2 |
3 & 4, 5 & 6, 7 & 8 |
180MHz |
60MHz |
3x |
Open |
Closed |
1 & 2 |
1 & 2, 5 & 6, 7 & 8 |
200MHz |
66MHz |
3x |
Closed |
Open |
1 & 2 |
1 & 2, 5 & 6, 7 & 8 |
Note: Pins designated should be in the closed position. |
CPU VOLTAGE SELECTION | |||
Voltage |
J4 |
J6 | |
None |
Open |
Open | |
2.1v |
Pins 7 & 8 closed |
Pins 7 & 8 closed | |
2.2v |
Pins 5 & 6 closed |
Pins 5 & 6 closed | |
2.3v |
Pins 5 & 6, 7 & 8 closed |
Pins 5 & 6, 7 & 8 closed | |
2.4v |
Pins 3 & 4 closed |
Pins 3 & 4 closed | |
2.5v |
Pins 3 & 4, 5 & 6 closed |
Pins 3 & 4, 5 & 6 closed | |
2.6v |
Pins 3 & 4, 5 & 6 closed |
Pins 3 & 4, 5 & 6 closed | |
2.7v |
Pins 3 & 4, 5 & 6, 7 & 8 closed |
Pins 3 & 4, 5 & 6, 7 & 8 closed | |
2.8v |
Pins 1 & 2 closed |
Pins 1 & 2 closed | |
2.9v |
Pins 1 & 2, 7 & 8 closed |
Pins 1 & 2, 7 & 8 closed | |
3.0v |
Pins 1 & 2, 5 & 6 closed |
Pins 1 & 2, 5 & 6 closed | |
3.1v |
Pins 1 & 2, 5 & 6, 7 & 8 closed |
Pins 1 & 2, 5 & 6, 7 & 8 closed | |
3.2v |
Pins 1 & 2, 3 & 4 closed |
Pins 1 & 2, 3 & 4 closed | |
» |
3.3v |
Pins 1 & 2, 3 & 4, 7 & 8 closed |
Pins 1 & 2, 3 & 4, 7 & 8 closed |
3.4v |
Pins 1 & 2, 3 & 4, 5 & 6 closed |
Pins 1 & 2, 3 & 4, 5 & 6 closed | |
3.5v |
Pins 1 & 2, 3 & 4, 5 & 6, 7 & 8 closed |
Pins 1 & 2, 3 & 4, 5 & 6, 7 & 8 closed |