SPRING CIRCLE COMPUTER, INC.
ST586 REV. P550 PCI MB
|
Processor |
CX M1/Pentium |
|
Processor Speed |
75/90/100/120/133/150/166MHz |
|
Chip Set |
Intel |
|
Video Chip Set |
None |
|
Maximum Onboard Memory |
128MB (EDO supported) |
|
Maximum Video Memory |
None |
|
Cache |
256/512KB |
|
BIOS |
AMI/Award |
|
Dimensions |
280mm x 220mm |
|
I/O Options |
32-bit PCI slots (4), floppy drive interface, green PC connector, IDE interfaces (2), parallel port, serial ports (2), cache slot, VRM connector |
|
NPU Options |
None |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
Serial port 2 |
J1 |
Turbo LED |
J11 pins 2 & 3 |
|
Serial port 1 |
J2 |
Green PC connector |
J11 pins 4 & 5 |
|
Floppy drive interface |
J3 |
Turbo switch |
J11 pins 6 & 7 |
|
Parallel port |
J4 |
Reset switch |
J11 pins 9 & 10 |
|
IDE interface 2 |
J5 |
Power LED & keylock |
J11 pins 11 - 15 |
|
IDE interface 1 |
J6 |
Speaker |
J11 pins 17 - 20 |
|
VRM connector |
J8 |
32-bit PCI slots |
PC1 - PC4 |
|
External battery |
J9 |
Cache slot |
SL1 |
|
IDE interface LED |
J10 | ||
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Label |
Position | |
|
Jumper information unavailable |
J12 |
Unidentified | |
|
|
Flash BIOS voltage select 5v |
JP4 |
Pins 1 & 2 closed |
|
Flash BIOS voltage select 12v |
JP4 |
Pins 2 & 3 closed | |
|
|
CMOS memory normal operation |
JP5 |
Open |
|
CMOS memory clear |
JP5 |
Closed | |
|
|
Parallel port IRQ select IRQ7 |
JR1 |
Pins 1 & 2 closed |
|
Parallel port IRQ select IRQ5 |
JR1 |
Pins 2 & 3 closed | |
|
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) 1M x 36 |
(2) 2M x 36 |
|
32MB |
(2) 4M x 36 |
None |
|
32MB |
(2) 2M x 36 |
(2) 2M x 36 |
|
40MB |
(2) 1M x 36 |
(2) 4M 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) 1M 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 |
|
CACHE CONFIGURATION | |||
|
Size |
Bank 0 |
TAG |
SL1 |
|
256KB (A) |
(8) 32K x 8 |
(1) 8K x 8 |
Not installed |
|
256KB (B) |
None |
(1) 8K x 8 |
256KB module installed |
|
512KB (A) |
(8) 64K x 8 |
(1) 32K x 8 |
Not installed |
|
512KB (B) |
None |
(1) 32K x 8 |
512KB module installed |
|
CACHE JUMPER CONFIGURATION | ||
|
Size |
JP7 |
JP9 |
|
None |
Pins 1 & 2 closed |
Pins 1 & 2, 4 & 5 closed |
|
256KB (A) |
Pins 2 & 3 closed |
Pins 1 & 2, 5 & 6 closed |
|
256KB (B) |
Open |
Open |
|
512KB (A) |
Pins 1 & 2 closed |
Pins 2 & 3, 4 & 5 closed |
|
512KB (B) |
Open |
Open |
|
CACHE VOLTAGE CONFIGURATION | ||
|
Size |
JP6 | |
|
3.3v |
Pins 2 & 3 closed | |
|
5v mixed |
Pins 1 & 2 closed | |
|
CPU SPEED SELECTION (CYRIX) | ||||
|
Speed |
JP1 |
JP2 |
JP3 |
JP8 |
|
120MHz |
Pins 2 & 3 closed |
Pins 2 & 3 closed |
Pins 1 & 2 closed |
Pins 1 & 2, 5 & 6 closed |
|
150MHz |
Pins 2 & 3 closed |
Pins 1 & 2 closed |
Pins 2 & 3 closed |
Pins 1 & 2, 5 & 6 closed |
|
166MHz |
Pins 1 & 2 closed |
Pins 2 & 3 closed |
Pins 2 & 3 closed |
Pins 1 & 2, 5 & 6 closed |
|
CPU SPEED SELECTION (INTEL) | ||||
|
Speed |
JP1 |
JP2 |
JP3 |
JP8 |
|
75MHz |
Pins 2 & 3 closed |
Pins 2 & 3 closed |
Pins 1 & 2 closed |
Pins 1 & 2, 4 & 5 closed |
|
90MHz |
Pins 2 & 3 closed |
Pins 1 & 2 closed |
Pins 2 & 3 closed |
Pins 1 & 2, 4 & 5 closed |
|
100MHz |
Pins 1 & 2 closed |
Pins 2 & 3 closed |
Pins 2 & 3 closed |
Pins 1 & 2, 4 & 5 closed |
|
120MHz |
Pins 2 & 3 closed |
Pins 1 & 2 closed |
Pins 2 & 3 closed |
Pins 1 & 2, 5 & 6 closed |
|
133MHz |
Pins 1 & 2 closed |
Pins 2 & 3 closed |
Pins 2 & 3 closed |
Pins 1 & 2, 5 & 6 closed |
|
150MHz |
Pins 2 & 3 closed |
Pins 1 & 2 closed |
Pins 2 & 3 closed |
Pins 2 & 3, 5 & 6 closed |
|
166MHz |
Pins 1 & 2 closed |
Pins 2 & 3 closed |
Pins 2 & 3 closed |
Pins 2 & 3, 5 & 6 closed |
|
CPU VOLTAGE SELECTION | ||
|
Voltage |
JP10 | |
|
3.3v |
Pins 1 & 2 closed | |
|
3.4v |
Pins 2 & 3 closed | |
|
3.5v |
Pins 4 & 5 closed | |
|
CPU VOLTAGE SELECTION | |
|
Setting |
J8 |
|
Regular CPU voltage |
Pins 4 & 5, 6 & 7, 19 & 20, 21 & 22 closed |
|
VRM module for CPU voltage |
Open |
|
DMA CHANNEL SELECTION | ||
|
Channel |
JR2 | |
|
1 |
Pins 1 & 2, 4 & 5 closed | |
|
3 |
Pins 2 & 3, 5 & 6 closed | |