SNOBOL SNB-M008 Mini 286 Main Board User Manual
- June 9, 2024
- SNOBOL
Table of Contents
- SNOBOL SNB-M008 Mini 286 Main Board
- SNB-M008 MINI 286 MAIN BOARD USER’S MANUAL
- INTRODUCTION
- MAIN FEATURES
- BOARD LAYOUT
- HARDWARE SET UP
- CONNECTORS PINOUT & DESCRIPTION
- MEMORY CONFIGURATION
- BIOS SET UP
- EMS DRIVER SET UP
- INSTALLING EMS PROCEDURE
- Read User Manual Online (PDF format)
- Download This Manual (PDF format)
SNOBOL SNB-M008 Mini 286 Main Board
SNB-M008 MINI 286 MAIN BOARD USER’S MANUAL
IBM PC/AT are registered trademarks of International Business Machiness
Corporation
AMI is registered trademarks of American Megatrends Inc
GOLD is registered trademarks of GS Technology
INTRODUCTION
- The SNB-M008 MINI 286 main board is a rugh performance AT compatible main board that provides high speed processing while maintaining full compatibility with the IBM PC/AT main board.
- The SNB-M008 MINI 286 main board arc low power consumption, low board space requirements, high reliability, high integration AT chip set system board.
- Simply stated, you can design a new system or upgrade your existing system with no modifications to eKisting or available components. In fact, your SNB-M008 MINI 286 main board may already have,been installed into a complete system by your dealer.
MAIN FEATURES
The main feature of the SNB-M008 MINI 286 main board as detailed below
- Full IBM PC/AT compatible.
- Used GOLD 286 high-integration ASIC two chip sets.
- Support 80286 16 or 20 Mhz CPU.
- Turbo speed selectable by keyboard or by hardware switch.
- Socket for INTEL 80287 math coprocessor.
- Support 16/20 Mhz, zero wait state up to 20/26 Mhz by chips and CPU.
- Memory socket up to 5MB on board.
- Base memory can use DIP DRAM or RAM MODULE.
- PAGE INTERLEAVED memory controller.
- On board BIOS, capable of adjusting RAM size, shadow ROM BIOS and VIDEO BIOS.
- Support EMS 4.0 driver.
- Real-time clock with rechargeable battery back up CMOS memory for system configuralion data.
- Five 16-biL bus and one 8-bit bus expansion slots.
- 4 layer PCB. A small dimensions (PCB size:22 cn1 x 21 cn1).
BOARD LAYOUT
Tt1e following shows SNB-M008 MINI 286 main board layout with the positions of the jumper and connectors.
HARDWARE SET UP
The following pages describe the locations and setting of the jumpers.
JUMPER SETTING & DESCRIPTION
- JP3 : DISPLAY ADAPTER SELECT
- JP6 : DISCHARGE CMOS RAM
- JP17 , JP18, JP19, JP20, JP21, JP22 : BASE MEMORY SELECT
- JP2 : CLOCK SPEED CONTROL
NOTES: JP1, JP14, JP16 are default factory.
CONNECTORS PINOUT & DESCRIPTION
- J4 : K.EYLOCK & POWER LED CONNECTOR
- JS. : EXTERNAL BA’I”l’ERY CONNECTOR
- J8 : TURBO LED CONNECTOR
- J9 : KEYBOARD CONNECTOR
- Jll : HARDWARE RESET CONNECTOR
- J 13 : SPEAKER CONNECTOR
- J12 . POWER SUPPLY CONNECTOR
Pin| Description
---|---
1
2
3
4
5
6
7
8
9
10
11
12
| Po wer good
+ 5V DC
+ 12V DC
– 12Y DC
Ground Ground Ground Ground
– SY DC
+ 5V DC
+ 5V DC
+ SY DC
- J7 : TURBO SWITCH
Setting| Description
---|---
Short
Open
| Turbo
Normal
MEMORY CONFIGURATION
The table below illustrates all the possible memory configurations available using on-board memory. Base memory can use DIP DRAM or RAM MODULE.
- BASE MEMORY: BANK Oj BANK I EXPANSION MEMORY: BANK 2, BANK 3
MODE
|
TOT AL
MEMORY SIZE
| DIP D’ RAM| RAM MODULE|
---|---|---|---|---
BANK 0
|
BANK l
|
BANK 2
|
BANK 3
|
‘
1| 512KB| 44256 X 4| not used| not used| not used
2| 1MB| 44256 X 4| 4425 6 X 4| not
used| not used
3| 2MB| 44256 X 4| 44256 X 4| 25 6KB x 2| 256KB
x 2
4| 3MB| 44256 X 4| 44256 X 4| 1MB x 2| not used
5| 5MB| 44256 X 4| 44256 X 4| 1MB x 2| lf\lB x 2
2. BASE MEMORY: BANK 2 , BANK 3
MODE
|
TOTAL MEMORY SIZE
|
DIP DRAM
| RAM MODULE
---|---|---|---
BANKO
|
BANK 1
|
BANK 2
|
BANK 3
6
|
512KB
| not used| not used| 256KB x 2| not usoo
7
|
1MB
| not used| not used| 256KB x 2| 256KB x 2
8| 2MB| not used| not used| 1MB x 2| not used
9| 2.5MB| not used| not used| 256KB x 2| 1MB
x 2
10| 4MB| not used| not used| 1MB x 2| 1MB x 2
BIOS SET UP
This chapter will tell you how to set up the system configuration
(C10S) under the AMf BIOS. If your system has had different BIOS
111stallcd,thcsc procedures will not work. The set up program is co11taincd in
the system’s Read Only Memory (ROM), not on a disk like the operating system.
AMI BIOS SYSTEM CONFIGURATION SET UP
The SET UP program lets you specify your system’s configuration of floppy
diskette drives, hard disk drives, video display, memory size, BIOS shadow,
co-processor wait, fast page rnode, EMS function, date and time. The SET UP
program is bulit-in BIOS. Diskette is not necessary for the SET l.W.
RUNNING THE BIOS SETUP PROGRAM
To run CMOS SET UP, follow these procedures:
-
Simultaneously press the
, , and keys to reboot the system (or turn the power on if the system is ott). Alter booting the system and testing the memory, in a moment, the following message will appear on the screen: Pressif you want to run SETUP or DIAGS -
Pleasc Press the
key (the one that shares the decimal point at the bottom of the numeric keypad). The following menu appears
EXIT FOR BOOT
RUN CMOS SETUP
RUN DIAGNOSTICS
Using the < i > and < J, > keys, highlight RUN CMOS SET UP and press < ENTER > -
Follow the instructions to continue until the set up IS finished.
AMI BIOS HARD DISK DRIVES TABLE
| Type | Cyln | Head | WPcom | LZone | Sect | Size |
|---|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
2 1
22
23
24
255
26
27
28
29
| 360| 4
4
6
8
6
4
8
5
15
3
5
7
8
7
0
4
5
7
7
5
7
5
4
7
9
7
l I
7
1()
| 128
300
300
512
512
65535
256
65535
65535
65535
65535
65535
128
65535
0
0
300
65535
512
300
300
300
0
0
65535
754
65535
256
655)5
| 305
615
615
940
940
615
511
733
901
820
855
855
319
733
0
663
977
977
1023
732
732
733
336
925
925
754
754
69()
823
| 17
17
17
17
17
17
17
17
17
17
17
17
17
17
0
17
17
17
17
17
17
17
17
17
17
17
17
17
17
| 10 MB
20 MB
1 MB
62 MB
47 MB
20 MB
31 MB
30 MB
112 MB
20 MB
35 MB
50 MB
20 MB
43 MB
0 MB
20 MB
41 MB
57 MB
60 MB
30 MB
43 MB
30 11B
10 N1B
54 118
69 f\11B
NtB
0t) “NtR
41 t\10
68 MB
|
615
615
940
940
615
462
733
900
820
855
855
306
733
000
612
977
977
1024
733
733
733
306
925
9 25
754
754
()99
823
T}'(‘)C C)1l n
| He ad| WPcom| LZone| Sect| Size
---|---|---|---|---|---
I
|
,
| –
3() 91 8
.)) 1 1()24
32 1024
33 10 24
34 612
35 1024
36 10 24
37 615
38 987
39 987
40 820
41 977
42 981
43 830
44 830
45 91’7
46 1224
47
| 7
11
15
5
2
9
8
8
3
7
6
5
5
7
10
15
15
< >| 918
65535
65535
1024
128
65535
512
128
987
987
820
‘:)77
981
512
65535
65535
65535
< >
| 918| 17
17
17
17
17
17
17
17
17
17
17
17
17
17
17
17
17
| | 53 MB 94 MB 128 MB 43 MB
10 MB
77 MB
68 MB
41 MB
25 MB
57 MB
41 MB 41 MB 41 MB
48 MB
69 MB
114 MB
152 MB
< >
| | 102Lt|
| | 1024|
| | 1024|
| | 612|
| | 1024|
| | 1024|
| | 615|
| | 987|
| | 987|
| | 820|
| | 977|
| | 981|
| | 830|
| | 830|
| | 918|
| | 1223|
| | < ><| >
EMS DRIVER SET UP
The SNB-M008 MINI 286 main board comes with a EMS driver diskette that contains the file: GS04EMM.SYS. This file must be installed in the CONFlG.SYS file to initialize EMS memory and shadow RAM.
INSTALLING EMS PROCEDURE
To use SNB-M008 MIN1 286 EMS DRIVER SET UP follow this procedure:
-
STEP 1. Boot PC system by using DOS and the system will prompt you with A>
-
STEP 2. Copy GS04EMM.sys ftle on your DOS diskette.
-
STEP 3. Type:
COPY CON CONFIG.SYS
DEVICE=GS04EMM.SYS /E:? /R:? /U:? /X:?“Z
The screen will display as follows:
1 File(s) copied
A>
Where E : EMS page mode.
R : Shadow RAM set.
U : User memory area set.
X : Driver HMA set.
? : GS04EMM.SYS parameters -
STEP 4 Reboot your system .
THE GS04EMM.SYS PARAMETERS
There are is described as follows:
Driver I-IMA set
- () ===> This option will copy the EMS driver to segment location F400 – F7FF. This option wil1 save 16K in the base memory.
- 1 ====> This option will install the EMS driver in the conventional manner. The EMS driver wilJ occupy the system memory.
- 2 ==> This option will install the EMS in the segment
ECOO – EF’FF. This option will save about 16K in the base memory. This is the default.
EXAMPLE:
-
DEVICE=GS04EMM.SYS
default:n0 shadow RAM is set, and the driver is copied to segment F400 F7FF. -
DEVICE-GSO4EMM.SYS R:0 R:5
This line will set the shadow RAM at location CO00 C3FF (video BIOS) and F800 FFFF (system BIOS). The snke.sys is savedin F400 F7FF. -
DEVICE=GS04EMM.SYS /R:0 /R:5 /X:1
Same is the second entry except the driver is loaded in the system memory. -
DEVICE-Gso4EMM.SYS /R:0 /R:5 /R:4
This entry will make the atperf benchmark’s ROM accesS ume to appear with less time. This is entry is purely used tor this particular benchmark.
Read User Manual Online (PDF format)
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