EVEREX SYSTEMS, INC.
RAM 3000 AT EV-135 (VER.2.0)
|
Card Type |
Memory card |
|
Chip Set |
Unidentified |
|
Maximum Onboard Memory |
3MB RAM (Type unidentified) |
|
I/O Options |
None |
|
Data Bus |
16-bit ISA |
|
DRAM CONFIGURATION | ||||
|
Size |
Bank 0 |
Bank 1 |
Bank 2 |
Bank 3 |
|
256KB |
(8) 256K x 1 |
None |
None |
None |
|
512KB |
(8) 256K x 1 |
(8) 256K x 1 |
None |
None |
|
768KB |
(8) 256K x 1 |
(8) 256K x 1 |
(8) 256K x 1 |
None |
|
1024KB |
(8) 256K x 1 |
(8) 256K x 1 |
(8) 256K x 1 |
(8) 256K x 1 |
|
1280KB |
(8) 256K x 1 |
(8) 256K x 1 |
(8) 256K x 1 |
(8) 256K x 1 |
|
1536KB |
(8) 256K x 1 |
(8) 256K x 1 |
(8) 256K x 1 |
(8) 256K x 1 |
|
1792KB |
(8) 256K x 1 |
(8) 256K x 1 |
(8) 256K x 1 |
(8) 256K x 1 |
|
2048KB |
(8) 256K x 1 |
(8) 256K x 1 |
(8) 256K x 1 |
(8) 256K x 1 |
|
2304KB |
(8) 256K x 1 |
(8) 256K x 1 |
(8) 256K x 1 |
(8) 256K x 1 |
|
2560KB |
(8) 256K x 1 |
(8) 256K x 1 |
(8) 256K x 1 |
(8) 256K x 1 |
|
2816KB |
(8) 256K x 1 |
(8) 256K x 1 |
(8) 256K x 1 |
(8) 256K x 1 |
|
3072KB |
(8) 256K x 1 |
(8) 256K x 1 |
(8) 256K x 1 |
(8) 256K x 1 |
|
DRAM CONFIGURATION | ||||
|
Size |
Bank 4 |
Bank 5 |
Bank 6 |
Bank 7 |
|
256KB |
None |
None |
None |
None |
|
512KB |
None |
None |
None |
None |
|
768KB |
None |
None |
None |
None |
|
1024KB |
None |
None |
None |
None |
|
1280KB |
(8) 256K x 1 |
None |
None |
None |
|
1536KB |
(8) 256K x 1 |
(8) 256K x 1 |
None |
None |
|
1792KB |
(8) 256K x 1 |
(8) 256K x 1 |
(8) 256K x 1 |
None |
|
2048KB |
(8) 256K x 1 |
(8) 256K x 1 |
(8) 256K x 1 |
(8) 256K x 1 |
|
2304KB |
(8) 256K x 1 |
(8) 256K x 1 |
(8) 256K x 1 |
(8) 256K x 1 |
|
2560KB |
(8) 256K x 1 |
(8) 256K x 1 |
(8) 256K x 1 |
(8) 256K x 1 |
|
2816KB |
(8) 256K x 1 |
(8) 256K x 1 |
(8) 256K x 1 |
(8) 256K x 1 |
|
3072KB |
(8) 256K x 1 |
(8) 256K x 1 |
(8) 256K x 1 |
(8) 256K x 1 |
|
DRAM CONFIGURATION | ||||
|
Size |
Bank 8 |
Bank 9 |
Bank 10 |
Bank 11 |
|
256KB |
None |
None |
None |
None |
|
512KB |
None |
None |
None |
None |
|
768KB |
None |
None |
None |
None |
|
1024KB |
None |
None |
None |
None |
|
1280KB |
None |
None |
None |
None |
|
1536KB |
None |
None |
None |
None |
|
1792KB |
None |
None |
None |
None |
|
2048KB |
None |
None |
None |
None |
|
2304KB |
(8) 256K x 1 |
None |
None |
None |
|
2560KB |
(8) 256K x 1 |
(8) 256K x 1 |
None |
None |
|
2816KB |
(8) 256K x 1 |
(8) 256K x 1 |
(8) 256K x 1 |
None |
|
3072KB |
(8) 256K x 1 |
(8) 256K x 1 |
(8) 256K x 1 |
(8) 256K x 1 |
|
DRAM SWITCH CONFIGURATION | ||||||||
|
Size |
SW1/1 |
SW1/2 |
SW1/3 |
SW1/4 |
SW1/5 |
SW1/6 |
SW1/7 |
SW1/8 |
|
0KB |
On |
On |
On |
Off |
On |
On |
On |
On |
|
128KB |
Off |
On |
On |
Off |
On |
On |
On |
On |
|
256KB |
On |
Off |
On |
Off |
On |
On |
On |
On |
|
384KB |
Off |
Off |
On |
Off |
On |
On |
On |
On |
|
512KB |
On |
On |
Off |
Off |
On |
On |
On |
On |
|
640KB |
Off |
On |
Off |
Off |
On |
On |
On |
On |
|
768KB |
On |
Off |
Off |
Off |
On |
On |
On |
On |
|
896KB |
Off |
Off |
Off |
Off |
On |
On |
On |
On |
|
1024KB |
On |
On |
On |
On |
Off |
On |
On |
On |
|
1152KB |
Off |
On |
On |
On |
Off |
On |
On |
On |
|
1280KB |
On |
Off |
On |
On |
Off |
On |
On |
On |
|
1408KB |
Off |
Off |
On |
On |
Off |
On |
On |
On |
|
1536KB |
On |
On |
Off |
On |
Off |
On |
On |
On |
|
1664KB |
Off |
On |
Off |
On |
Off |
On |
On |
On |
|
1792KB |
On |
Off |
Off |
On |
Off |
On |
On |
On |
|
1920KB |
Off |
Off |
Off |
On |
Off |
On |
On |
On |
|
2048KB |
On |
On |
On |
Off |
Off |
On |
On |
On |
|
2176KB |
Off |
On |
On |
Off |
Off |
On |
On |
On |
|
2304KB |
On |
Off |
On |
Off |
Off |
On |
On |
On |
|
2432KB |
Off |
Off |
On |
Off |
Off |
On |
On |
On |
|
2560KB |
On |
On |
Off |
Off |
Off |
On |
On |
On |
|
2688KB |
Off |
On |
Off |
Off |
Off |
On |
On |
On |
|
2816KB |
On |
Off |
Off |
Off |
Off |
On |
On |
On |
|
2944KB |
Off |
Off |
Off |
Off |
Off |
On |
On |
On |
|
3072KB |
On |
On |
On |
On |
On |
Off |
On |
On |
|
BASE MEMORY JUMPER CONFIGURATION | ||
|
Size |
JP2 |
JP3 |
|
None |
Pins 3 & 4, 5 & 6 closed |
Pins 3 & 4 closed |
|
256KB - 512KB |
Pins 3 & 4, 7 & 8 closed |
Pins 3 & 4 closed |
|
256KB - 640KB |
Pins 1 & 2, 5 & 6 closed |
Pins 1 & 2 closed |
|
512KB - 640KB |
Pins 1 & 2, 5 & 6 closed |
Pins 1 & 2 closed |
|
BASE MEMORY SWITCH CONFIGURATION | ||||
|
Size |
Chips |
SW2/6 |
SW2/7 |
SW2/8 |
|
None |
N/A |
Off |
Off |
Off |
|
256KB - 512KB |
64KB |
Off |
On |
On |
|
256KB - 512KB |
256KB |
N/A |
N/A |
N/A |
|
256KB - 640KB |
64KB |
On |
On |
On |
|
256KB - 640KB |
256KB |
On |
On |
Off |
|
512KB - 640KB |
64KB |
On |
Off |
On |
|
512KB - 640KB |
256KB |
On |
Off |
Off |
|
EXTENDED MEMORY ADDRESS SETTINGS | ||||||
|
Address |
Chips |
SW2/1 |
SW2/2 |
SW2/3 |
SW2/4 |
SW2/5 |
|
128KB |
64 |
Off |
On |
On |
On |
On |
|
256KB |
64 |
On |
Off |
On |
On |
On |
|
384KB |
64 |
Off |
Off |
On |
On |
On |
|
512KB |
64 |
On |
On |
Off |
On |
On |
|
512KB |
256 |
On |
On |
Off |
On |
On |
|
640KB |
64 |
Off |
On |
Off |
On |
On |
|
768KB |
64 |
On |
Off |
Off |
On |
On |
|
1MB |
256 |
On |
On |
On |
Off |
On |
|
1.5MB |
256 |
On |
On |
Off |
Off |
On |
|
2MB |
256 |
On |
On |
On |
On |
Off |
|
2.5MB |
256 |
On |
On |
Off |
On |
Off |
|
3MB |
256 |
On |
On |
On |
Off |
Off |
|
MISCELLANEOUS TECHNICAL NOTES |
|
Note: The purpose of W16 is unidentified. |
