MANUAIS DE MOTHERBOARDS BIOTEQ |
MB-14XXUIV
25/33/40/50/66/75/100MHz 80486 VLB Turbo Mainboard
Features
Hardware
Green function
Power Down Timer from (0.5 - 512 mins.)
Wake up by any key or mouse activity.
CPU
80486SX/DX/DX2, 80486SI., OverDriver&127M P241', DX4, Cyrix M6, Cyrix M7, AMD 486/DXL,T/DX2, UMC 486.
CPU socket as following:
(1) 237-pin ZIF white socket (optional).
(2) 237-pin PGA socket (optional).
(3) 237-pin LIF socket (optional).
25/33/40/5OMHz system and VESA
Local Bus speed.
I-Iardware and Software speed switchable function supported.
Bus I/O clock 8 MHz for maximum compatibility with add on cards.
Shadow RAM
- A memory controller that provides shadow RAM and supports 8-bit ROM BIOS.
DRAM memory
- Support (1) 1 bank 30-pin 256KB/1/4/16 MB SIMM Module sockets.
(2) 2 banks 72-pin 1/2/4/8/16/32MB SIMM Module socket.
- Support DRAM memory up to 64MB on board.
- DRAM 'Iype: page mode, 80ns required.
Cache memory
- Flexible Cache RAM size 64KB/128KB/256KB.
Bus slots
- Seven 16-bit ISA Bus slots and three VESA I.ocal Bus slots.
- Dimension 22cmX25cm(WxL)
Software
- AWARD or AMI Legal BIOS
- Offers the highest performance for MS/DOS, OS/2,Windows, Windows NT Novell,
etc.
JUMPER SETTINGS
CPU CLOCK:
25 MHZ (DX2-50MHZ/DX4-75MHZ) JP4 OPEN | JP5 OPEN | JP6 CLOSED
33 MHZ (DX2-66MHZ.DX4-100MHZ) JP4 CLOSED | JP5 CLOSED | JP6 CLOSED
40 MHZ (DX2-80MHZ) JP4 OPEN | JP5 CLOSED | JP6 CLOSED
50 MHZ (DX-50MHZ) JP4 CLOSED | JP5 OPEN | JP6 OPEN
CPU VOLTAGE SELECT:
3.3-3.6 VOLT JP14 1-2 CLOSED | JP27 1-2 CLOSED | JP16 1-2 CLOSED | JP38 1-2
CLOSED | JP39 OPEN
CYRIX 4 VOLT JP14 1-2 CLOSED | JP27 1-2 CLOSED | JP16 1-2 CLOSED | JP38 2-3
CLOSED | JP39 CLOSED
5 VOLT JP14 2-3 CLOSED | JP27 2-3 CLOSED | JP16 2-3 CLOSED | JP38 1-2 CLOSED |
JP39 OPEN
NOTE: JP38 AND JP39 ONLY IN VER 6. AND AFTERWARDS SUPPORT CYRIX 4V CPU
CPU TYPE SELECT:
PCB VERSION 1 JP 20 NO | JP 23 NO | JP40 NO
PCB VERSION 2 JP 20 NO | JP 23 NO | JP40 NO
PCB VERSION 3 JP 20 NO | JP23 YES | JP40 NO (SUPPORT AMD 3V CPU (A804086DX2))
PCB VERSION 5 JP 20 YES (1x2PIN) | JP23 NO | JP40 NO (SUPPORT AMD 3V CPU
(A80486DX2))
PCB VERSION 6 JP 20 YES (1x2PIN) | JP23 NO | JP40 NO (SUPPORT AMD 3V CPU
(A80486DX2) & CYRIX 4V CPU))
PCB VERSION 7 JP 20 YES (1x3PIN) | JP23 NO | JP40 YES (SUPPORT AMD 3V CPU
(A80486DX2) & CYRIX 4V CPU & AMD ENHANCED (PLUS) CPU))
CPU TYPE |
486 SX |
486 DX |
486DX-SL/DX4 |
P24D |
P24T |
JP11 |
OPEN |
OPEN |
1-2 CLOSED |
1-2 CLOSED |
1-2 CLOSED |
JP12 |
2-3 CLOSED |
2-3 CLOSED |
1-2 CLOSED |
1-2 CLOSED |
1-2 CLOSED |
JP13 |
2-3 CLOSED |
1-2-3-4 CLOSED |
1-2-3-4 CLOSED |
1-2-3-4 CLOSED |
1-2-3-4 CLOSED |
JP17 |
2-3 CLOSED |
1-2 CLOSED |
1-2 CLOSED |
1-2 CLOSED |
2-3 CLOSED |
JP18 |
OPEN |
OPEN |
5-6 CLOSED |
3-4 5-6 CLOSED |
5-6 CLOSED |
JP19 |
OPEN |
OPEN |
1-2 3-4 CLOSED |
1-2 3-4 CLOSED |
1-2 3-4 CLOSED |
JP35 |
CLOSED |
CLOSED |
OPEN |
OPEN |
OPEN |
CPU TYPE |
M6 |
M7 |
AMD 486DXL |
UMC 486 |
|
JP11 |
1-2 3-4 CLOSED (5-6 FOR DOUBLE CLOCK) |
1-2 3-4 CLOSED (5-6 FOR DOUBLE CLOCK) |
2-3 CLOSED |
2-3 CLOSED |
|
JP12 |
1-2 3-4 5-6 CLOSED |
1-2 3-4 5-6 CLOSED |
2-3 CLOSED |
2-3 CLOSED |
|
JP13 |
2-3 CLOSED |
1-2 3-4 CLOSED |
1-2 3-4 CLOSED |
2-3 CLOSED |
|
JP17 |
OPEN |
1-2 CLOSED |
1-2 3-4 CLOSED |
3-4 CLOSED |
|
JP18 |
2-3 4-5 CLOSED |
2-3 4-5 CLOSED |
1-2 CLOSED |
1-2 CLOSED |
|
JP19 |
2-3 4-5 CLOSED |
2-3 CLOSED |
OPEN |
OPEN |
|
JP35 |
OPEN |
OPEN |
CLOSED |
CLOSED |
|
FOR VERSION 7: AMD
ENHANCED (PLUS):
JP11 1-2 CLOSED 3-6 OPEN | JP12 1-2 CLOSED 4-5 CLOSED | JP13 1-2 3-4 CLOSED
JP17 1-2 CLOSED 3-4 OPEN | JP18 3-4 5-6 CLOSED | JP19 1-2 3-4 CLOSED | JP20
1-2-3 OPEN
JP40 CLOSED
NOTES
1. JP23 can be found "only" in PCB Ver: 3.
For Ver: 3 (JP23:DX/DX4=open, DX2=closed).
2. JP2O can be found in PCB Ver. 5 & afterwards.
For Ver: 5/6 (JP2O: DX/DX4=open, DX2=closed).
For Ver: 7 (JP2O: DX/DX4=open, DX2=2-3 closed).
JP4O can be found in PCB Ver: 7 & afterwards.