GENOA SYSTEMS CORPORATION
TURBOEXPRESS 486PCI-4G
|
Processor |
80486SX/80486Overdrive/80487SX/80486DX/80486DX2 |
|
Processor Speed |
25/33/50(internal)/66(internal)MHz |
|
Chip Set |
Unidentified |
|
Video Chip Set |
None |
|
Maximum Onboard Memory |
128MB |
|
Maximum Video Memory |
None |
|
Cache |
128/256/512KB |
|
BIOS |
Award |
|
Dimensions |
254mm x 218mm |
|
I/O Options |
32-bit PCI slots (4) |
|
NPU Options |
None |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
Power LED & keylock |
JP17 |
Turbo LED |
JP20 |
|
Speaker |
JP18 |
Turbo switch |
JP21 |
|
Reset switch |
JP19 |
32-bit PCI slots |
PC1 PC4 |
|
DRAM CONFIGURATION | ||
|
Size |
Bank 0 |
Bank 1 |
|
2MB |
(2) 256K x 36 |
None |
|
4MB |
(2) 512K x 36 |
None |
|
4MB |
(2) 256K x 36 |
(2) 256K x 36 |
|
6MB |
(2) 512K x 36 |
(2) 256K x 36 |
|
8MB |
(2) 1M x 36 |
None |
|
8MB |
(2) 512K x 36 |
(2) 512K x 36 |
|
10MB |
(2) 1M x 36 |
(2) 256K x 36 |
|
12MB |
(2) 1M x 36 |
(2) 512K x 36 |
|
16MB |
(2) 2M x 36 |
None |
|
16MB |
(2) 1M x 36 |
(2) 1M x 36 |
|
18MB |
(2) 2M x 36 |
(2) 256K x 36 |
|
20MB |
(2) 2M x 36 |
(2) 512K 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 |
|
34MB |
(2) 4M x 36 |
(2) 256K x 36 |
|
36MB |
(2) 512K x 36 |
(2) 4M 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 |
|
66MB |
(2) 8M x 36 |
(2) 256K x 36 |
|
68MB |
(2) 512K x 36 |
(2) 8M 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) 8M x 36 |
(2) 8M x 36 |
|
Note: Banks are interchangeable. | ||
|
CACHE CONFIGURATION | |||
|
Size |
Bank 0 |
Bank 1 |
TAG |
|
128KB |
(4) 32K x 8 |
None |
(1) 32K x 8 |
|
256KB |
(4) 32K x 8 |
(4) 32K x 8 |
(1) 32K x 8 |
|
512KB |
(4) 128K x 8 |
None |
(1) 32K x 8 |
|
CACHE JUMPER CONFIGURATION | ||||
|
Size |
JP2 |
JP3 |
JP12 |
JP13 |
|
128KB |
Pins 1 & 2 closed |
Pins 2 & 3 closed |
Open |
Open |
|
256KB |
Pins 2 & 3 closed |
Pins 1 & 2 closed |
Closed |
Open |
|
512KB |
Pins 2 & 3 closed |
Pins 2 & 3 closed |
Closed |
Closed |
|
CACHE CONFIGURATION | |
|
Setting |
JP4 |
|
Enabled |
Pins 2 & 3 closed |
|
Disabled |
Pins 1 & 2 closed |
|
CPU SPEED SELECTION | |||
|
Speed |
JP5 |
JP10 |
JP11 |
|
25MHz |
Pins 1 & 2 closed |
Open |
Closed |
|
33MHz |
Pins 2 & 3 closed |
Closed |
Open |
|
50iMHz |
Pins 1 & 2 closed |
Open |
Closed |
|
66iMHz |
Pins 2 & 3 closed |
Closed |
Open |
|
CPU TYPE SELECTION | |||
|
Type |
JP14 |
JP15 |
JP16 |
|
80486SX |
Pins 1 & 2 closed |
Open |
Pins 2 & 3 closed |
|
486Overdrive (168 pin) |
Pins 1 & 2 closed |
Pins 1 & 2 closed |
Pins 1 & 2, 3 & 4 closed |
|
486Overdrive (169 pin) |
Pins 1 & 2 closed |
Pins 2 & 3 closed |
Pins 1 & 2, 3 & 4 closed |
|
80487SX |
Pins 1 & 2 closed |
Pins 2 & 3 closed |
Pins 1 & 2, 3 & 4 closed |
|
80486DX |
Pins 1 & 2 closed |
Pins 1 & 2 closed |
Pins 1 & 2, 3 & 4 closed |
|
8048DX2 |
Pins 1 & 2 closed |
Pins 1 & 2 closed |
Pins 1 & 2, 3 & 4 closed |
|
PCI TRIGGER SELECTION | |||
|
Setting |
JP27 |
JP28 | |
|
ISA IDE |
Pins 2 & 3 closed |
Closed | |
|
Level |
Pins 1 & 2 closed |
Open | |
|
Edge |
Pins 4 & 5 closed |
Open | |