Unit 1... Overview
Unit 2 ... Main Board Layout and Description
Unit 3 ... BIOS Setup
Unit 4 ... Other
Page 4
Page 5
TRADEMARKS ANNOUNCEMENT
* IBM PC/AT,
OS/2, UNIX, XENIX,.ARE
TERED
TIVE ORGANIZATIONS
AMI, INTEL/486,
TRADEMARKS
OF THEIR
SIS, MS-DOS,
THE
REGIS¬
RESPEC¬
Page 6
Page 7
U
nit 1
Overview
Page 8
Page 9
O verview
Talking
SPEED. Yes, the feature of this new enhanced main board,
SIS 486 VESA, is in its fast speed when compare with the
other 486 VESA M/B.
The concept of cache memory is some active portion of a
low speed memory
cache memory. When memory request is generated,
request presents
cann't respond, the request will present to main memory.
The
efficient memory system. Meanwhile,
is very low-cost at the current market. The detailed spe¬
cifications
Specification
* Using SIS-85C460
about 486 VESA M/B, everybody
is
stored in a duplicate
to
the cache memory at first. If cache
cache main board is designed
of
this SIS 486 VESA M/B are as follows :
:
ATQ Single Chip.
high-speed
to
perform
the memory device
thinks
as a
very
the
of
* Using INTEL 80486SX
to Support 25 or 33/50 or 50/66 MHz, Landmark
( Ver. 0.99 ) is 130.5 or 167.8/234.9
* 100% IBM PC/AT compatible.
or
80486DX,
or
234.9/293.6
80486DX2
CPU
Speed
MHz.
Page 10
O verview
* Write-BACK/Through
sizes 64KB/128KB/256KB.
* Page mode DRAM controller supports 1MB/2MB/4MB/
8MB/16MB/20MB/32MB
256KB/1MB/4MB
* AMI BIOS (Single BIOS, 512K-Bit ROM on board).
* Two 32-Bit VESA slot-2 slave or 2 master and seven 16-
Bit expansion ISA slots.
* Support VESA CARD :
VGA CARD
IDE CACHE CARD: DC-680, DC-680T ....
SCSI CTRL CARD : ULTRASTOR,
* Optimized
NOVELL 386.... software environment.
* On board rechargeable
configuration and real time clock.
for OS/2, WINDOWS/386,
direct mapping Cache with Cache
DRAM with combination
SIMM Modules devices.
: ET4000, S3, CIRRUS, OAK ....
battery back-up for CMOS
BUSLOGIC
UNIX, XENIX,
...
of
* 2/3 Baby AT size ; 4 Layers (22cm * 26cm).
Page 11
Main Board Layout
and Description
Page 12
Page 13
M ain Board Layout & Description
....
SIS 486 VL-BUS
Ext. Battery
K/B
KK
POWER
CN6 JACK
146818 •
BIOS
SIMM7
SIMM6
SIMM5
SIMM4
SIMM3
SIMM2
HANK 1
BANK 0
Main Board
Layout
CPU type select
□
U13
J12
uli
n
iANK 1|
|«
U5
|BANK
U4
U2
U3
I U15 TAG
486SX
PQFP
~ JP7-JP1 1
Ui4-i-inj
Cap]
JP16-JP13
1 D
□
□
□
D
VESA
•BUS
SELECT
• RESET
• TB LED
•TBSW.
•SPEAKER
• KEYLOCK
2-1
External cache
size select
Page 14
M ain Board Layout & Description
Reset Jumper
This is for the system's re-boot and is also connected to
front panel of case.
CN3 Speaker
Zhis connector is to be connected with a speaker which
should be attached on back of front panel while installa¬
tion. It will make sound while the system is boot.
CN1 Keylock
Jlhis jumper is to be connected to front panel of case.
Keylock connector controls the keyboard to be locked
or not. It also controls power LED which indicates if the
system is power on or not.
CN6 External
Connector
Jumper
Battery
Connector
The
cache 486 main board uses a 3.6V rechargable battery
which maintains the information of system configuration
in the CMOS RAM and supplies the real time clock. It can
be automatically
ever, this connector can be connected to an external battery
source .
recharged while the power is on. How¬
2-2
Page 15
M ain Board Layout & Description
CN2 Keyboard
This jack is plugged by the keyboard connector while
you use the keyboard.
CN7 Power Connector
The power supply is required to be connected in this two
male six-pin power connector. Please take at least 200W
power supply.
CN4 Tbrbo LED
This is to be connected to front panel of case. While it
shines, the system is under turbo status, otherwise,
reverses.
CN5 TVirbo Switch Jumper
Jack
it
This jumper decides whether the system runs at turbo or
normal speed. If short, it is in turbo status. If open, it is in
normal. This switch can be connected to front panel of case.
After installation, you can just press the "Turbo button” on
the case to choose turbo or normal speed.
2-3
Page 16
M ain Board Layout & Description
JP13-JP16
These jumpers select your CPU type for 80486-DX,
80486-SX or 80487-SX.
Jumper^3^
JP16 for PGA/PQFP 486 CPU Select
for CPU Type Select Jumper
CPU
JP13
JP14
JP15
486-DX
1-2
1-2
short
486-SX
open
2-3
open
487-SX
2-3
1-2
short
2-4
Page 17
t
M ain Board Layout & Description
JP1-JP7
for Cache
SIZE
64KB
128KB
256KB
64KB
128KB
256KB
RAM size Jumper
JP1
JP2
JP3
JP4
1-2
1-2
1-2
1-2
2-3
1-2
2-3
1-2
2-3
2-3
2-3
2-3
DATA RAM using 8K8 * 8 pcs
TAG RAM using
DATA RAM using 32K8 * 4 pcs
TAG RAM using 8K8 * 1 pcs
DATA RAM using 32K8 * 8 pcs
TAG RAM using
8K8 * 1 pcs
32K8 * 1 pcs
JP5
2-3
1-2
2-3
.
Setting
JP6
JP7
—
1-2
2-3
1-2
2-3
2-3
JP20-JP22
Setting
SIZE
JP20
JP21
JP22
for (MX) Clock Generator
25MHz
short
open
open
33MHz
short
short
short
2-5
Jumper
40MHz
short
short
open
50MHz
open
open
short
Page 18
M ain Board Layout & Description
CACHE
While using
sockets
While using
U2-U5
K/B
JACK
BAT
CN6 JACK
RAM Installed
U2-U5
and
POWER
146818
BIOS
64KB
or
&
U10-U13
128KB,
TAG RAM
SIMMS
SIMM7
SIMM6
BANK 1
SIMM5
SIMM3 BANK 0
SIMM2
Guide
256KB
please insert the
and
in socket
please insert the
TAG RAM
SRAM
U15.
85C461
SRAM
□
in socket
in sockets
EEQ]
JP16-JP13
80486
PGA
SRAM
in
U15.
2-6
Ull
J12
U13
K1
BAr*
-II-n_Jk—1
U4 U3
[U5
VK
JA
L
_-Jl.II IL—1
J10
U2
1
I U14 ALT ~1
486SX
PQFP
JP1-JP7
SHED3
• RESET
♦TBLED
• TBSW.
•SPEAKER
•KEYLOCK
Page 19
M ain Board Layout & Description
JP8-JP11
CACHE
for VESA BUS Setup
JP10
<=33 MHz
> 33 MHz
0 WAIT WRITE
1 WAIT WRITE
RAM Speed type :
CPU
Speed
2-3
—
—
SLOT 1
1-2
TAG
Speed
JP11
—
—
1-2
2-3
SLOT 2
JP 8
1-2
2-3
—
—
Cache
Speed
JP 9
—
—
1-2
2-3
33 MHz
50 MHz
20 ns
20 ns
2-7
20 ns
20 ns
Page 20
M ain Board Layout & Description
SLOTS
The
expansion
32 bit VESA slot * 2 pcs
16 bit ISA slot * 7 pcs
Memory
Organization
A/emory
Memory sizes are expandable
on board. Let's discuss it one by one :
On Board DRAM
K/B
VCK
BAT
POWER
ACK
146818
BIOS
CN6 j
slots are :
area includes
:
.
SIMM7
SIMM6 RANK 1
SIMMS
SIMM4
SIMM3 BANK 0
SIMM2
SIMM1
2
BANKS
S
IMM SOCKET
(BANK0-BANK1).
from 1 MB to 32MB (MAX.)
□
CEO]
JP16-JP13
80486
PGA
85C461
2-8
J12 LJnl
U13
IBANK 1|
U4
U5
|BANK
Dio
U2
U3
| U15 TAG 1
I U14 ALT |
486SX
PQFP
JP1-JP7
ITOFEB
• RESET
•TBLED
♦ TBSW.
•SPEAKER
•KEYLOCK
□
-
o-
&
Page 21
M ain Board Layout & Description
BANK 0: SIMM 1, 2, 3, 4
BANK 1 : SIMM 5, 6, 7, 8
Supporting
So, memory are available with multiple options of
1MB, 2MB, 4MB, 8MB, 16MB,20MB
Memory Size
256KB, 1MB and 4MB SIM MODULE.
1MB
2MB
4MB
8MB
BANK 0
256KB
256KB
1MB
1MB
or
32MB.
BANK 1
0KB
256KB
0KB
1MB
16MB
20MB
32MB
2-9
4MB
1MB
4MB
0KB
4MB
4MB
Page 22
M ain Board Layout & Description
1MB - Bank 0 with 256KB SIMM RAM MODULE * 4
K/B
wx
BAT
POWER
CN6 JACK
146818 •
256KB RAM
SIMM8
SIMM7
SIMM6
BANK 1
_
BANK I
U13 J12
;ap vIKl
|u
II JL..,—IL.... J
U4 U3
SIMMS
SIMM4
SIMM3
SIMM2
' SiMM’r
BIOS
|BAr
>fK0|
plo
U2
□
| U15 TAG "
I U14 ALT "
486SX
PQFP
JP1-JP7
imnn
cm]
JP16-JP13
•RESET
• * TB LED
• •TBSW.
• •SPEAKER
..KEYLOCK
2-10
Page 23
ain Board Layout & Description
2MB - Bank 0-1 with 256KB SIMM RAM MODULE * 8
K/B
AK
BAT
POWER
CN6 JACK
146818 •
256KB RAM
"SIMMS
SIMM7
SIMM6
BANK 1
SIMMS
SIMM4
■
ago BANK 0
SIMM2
SIMM1
BIOS
U13
J12
\\
I
U5l
U4
(A
|«
on
VK 1|
U3
SfK
JP16-JP13
J10
U15 TAG
B-
486SX
U2
PQFP
JP1-JP7
mm
&
■
•RESET
• TB LED
•TBSW.
•SPEAKER
•KEYLOCK
2-11
Page 24
M ain Board Layout & Description
4MB - Bank 0 with 1MB SIMM RAM MODULE * 4
1MB RAM
•• RESET
• • TB LED
• •TBSW.
..SPEAKER
• •KEYLOCK
2-12
Page 25
M ain Board Layout & Description
.
8MB - Bank 0-1 with 1MB SIMM RAM MODULE * 8
K/B
MX
BAT
POWER
CN6 JACK
146818
1 MB RAM
SIMM6 BANK 1
SMM3
SIMM2
SIMM1
BIOS
BANK 0
U5 U4
A NIK
|i
_il. n nzu
85C461
U3
U2
1
□
JP1-JP7
lllU.m
JP16-JP13
80486
PGA
CE®
JP11
• RESET
• TBLED
•TBSW.
•SPEAKER
•KEYLOCK
2-13
Page 26
M ain Board Layout & Description .
16MB - Bank 0 with 4MB SIMM RAM MODULE * 4
4MB RAM
••RESET
• • TB LED
--TBSW.
• -SPEAKER
-•KEYLOCK
2-14
Page 27
M ain Board Layout & Description
20MB - Bank 0 with 1MB SIMM RAM MODULE * 4
Bank 1 with 4MB SIMM RAM MODULE * 4
K/B
wx
BAT
POWER
CN6 JACK
146818 •
4MB RAM
S1MM8
SIMM7
SIMM6 BANK 1
SIMM4
SIMM3
BANK 0
SIMM2
BIOS
SIMM1
1MB RAM
U13
|UAf
U5
|BANK 0|
J12
U4
85C461
Ull
vK 1|
U3
JIG
U2
□
JP16-JP13
80486
PGA
□
m]
*
•
* * TB LED
••TBSW.
••SPEAKER
•KEYLOCK
RESET
2-15
Page 28
M ain Board Layout & Description
.
32MB - Bank 0-1 with 4MB SIMM RAM MODULE * 8
K/B
BAT
POWER
CN6 JACK
146818
1
1
1
-1-
1_
4MB RAM
SIMM8
SIMM7
SIMM6
S1MM5
SIMM4
SIMM3
SIMM2
SIMM1
BANK 1
BANK 0
1
1
1
_1
unlp
1
|62
1
U5 U
1
|B/
8042
.
BIOS
2 UU J10
[NKll
4 U3 U2
tNK0|
| U14 ALT |
JP1-JP7
rom
486SX
PQFP
EEffl
JP16-JP13
•• RESET
• • TB LED
• •TBSW.
..SPEAKER
• •KEYLOCK
2-16
Page 29
U
nit 3
BIOS Setup
Page 30
Page 31
B IOS Setup
ZThis chapter advises user how to use the CHIP SETUP
under the AMI BIOS. Please read it clearly.
After power on and memory test, please press " DEL "
key. The program will go to the next screen.
Hit <DEL>, If you want to run SETUP/EXTD-SET.
Page 32
B IOS Setup
NOTE
AMIBIOS SETUP PROGRAM - BIOS SETUP UTILITIES
(C) 1992 American Megatrends Inc., All Rights Reserved
STANDARD CMOS SETUP
AUTO CONFIGURATION WITH BIOS DEFAULTS
AUTO CONFIGURATION WITH POWER-ON DEFAULTS
DO NOT WRITE TO CMOS AND EXIT
Standard CMOS Setup for Changing Time, Date, Hard Disk Type, etc.
ESC:Exit
ADVANCED CMOS SETUP
CHANGE PASSWORD
AUTO DETECT HARD DISK
HARD DISK UTILITY
WRITE TO CMOS AND EXIT
4->T<-:Sel F2/F3:Color F10:Save & Exit
:
Standard CMOS Setup for Changing Time, Date, Hard¬
disk Type, etc.
3-2
Page 33
B IOS Setup
AMIBIOS SETUP PROGRAM - STANDARD CMOS SETUP
(C) 1992 American Megatrends Inc., All Rights Reserved
Date (mn/date/year) : Wed, Mar 03 1993
Time (hour/min/sec) : 09 : 23 : 35
Hard disk C: type
Hard disk D: type
Floppy drive A :
Floppy drive B :
Primary display
Keyboard
Month
Date
Year :
: Jan, Fed,.
: 01,02,03,.
1901, 1902.
: 37
Not Installed
: 1.2 MB, 5
Not Installed
VGA/PGA/EGA
Installed
.31
.2099
= ESC:Exit i->T<-:Sel F2/F3:Color PU/PD:Modify =
NOTE :
Base memory : 640 KB
Ext. memory : 31744 KB
Cyln Head Wpcom LZone Sect Size
615 8 128 615 17 41 MB
1
/4
"
Sun
Mon
Tue
28
1
1 4
7
8
15
21
22
28
29
4
5
In the right bottom part of the screen, the calendar will
alter the current year/month/date.
"
" <- " to select the item you want, and use PgUp &
PgDn to change the value.
You can use
Wed
Fri
Thu
Sat
2
9
16
23
30
6
4
3
10
17
24
31
7
11 12
18
25
1 2
8
5
6
13
19
20
26
27
3
9
10
"
t"
"
i "
3-3
Page 34
B IOS Setup
AMI BIOS SETUP PROGRAM
(C)
1992 American Megatrends Inc., All Rights Reserved
Date (mn/date/year) : Wed, Mar 03 1993
Time (hour/min/sec)
^
09 : 23 : 35 |
Cyln Head Wpcom LZone Sect Size
Hard disk C: type
Hard disk D: type
Floppy drive A
Floppy drive B
Primary display
l^ovhnor/1
Time is 24 hour format:Hour
:
(00-23),Minute
:
:
:
37
:
Not Installed
:
1.2 MB, 5
:
Not Installed
:
VGA/PGA/EGA
• Tnciollnsl
:
(00-59),Second
1
/4
”
:
(00-59^
(1:30 AM=01:30:00), (1:30 PM=13:30:00)
ESC:Exit 4->Tf-:Sel F2/F3:CoIor
J=]
NOTE
:
PU/PD:
Modify
You can change the time according
tion in the left bottom part of the screen.
-
STANDARD CMOS SETUP
615 8
Base memory : 640 KB
Ext. memory : 31744 KB
128 615 17 41 MB
Mon
Sun
28 1
1 4
21 22
28 29 30 31
7 8
15 16 17 18 19 20
4
5 6
to
the rule explana¬
Tue
2
9 10
23
Wed Thu
3
24
7
Fri
4
5 6
11 12
25 26 27
1 2
8
9
Sat
13
3
10
3-4
Page 35
B IOS Setup
AMIBIOS SETUP PROGRAM - STANDARD CMOS SETUP
(C) 1992 American
Date (mn/date/year) :
Time (hour/min/sec)
Hard disk C: type
Hard disk D: type
Floppy drive A
r
iufFj
uiivc
d
Primary display
Keyboard
h
IXED type
=
01...46, USER defined type
For type 47 Enter
Wed, Mar 03 1993
:
09 : 23 : 35
:
37
:
Not Installed
:
:
1.2 MB, 5
;
:
moi installed
:
VGA/PGA/EGA
:
Installed
:
Cyln,Head,WPcom,LZone,
Sec, (WPcom is 0 for ALL, 65535 for NONE)
=ESC:Exit
NOTE
:
According
F2/F3:Color PU/PD: Modify-
to
your equipment,
The options are 1-47 types.
Megatrends
Inc., All Rights Reserved
Base memory : 640 KB
Ext. memory : 31744 KB
Cyln Head Wpcom LZone Sect Size
615 8 128 615 17 41 MB
1
/4"
Sun
Mon
8
15 16
22
29
5 6
Tue
2
9
23 24
30
28 1
7
1 4
=
47,
21
28
4
select hard disk CorD.
Wed
Thu
3
10 11
17
31
7 8
Fri
4
12
18 19
25 26
1
Sat
5
6
13
20
27
2
3
9
10
3-5
Page 36
B IOS Setup
AMIBIOS SETUP PROGRAM
-
STANDARD CMOS SETUP
(C) 1992 American Megatrends Inc., All Rights Reserved
Date (mn/date/year) : Wed, Mar 03 1993
Time (hour/min/sec)
Hard disk C: type : 37
Hard disk D: type
Floppy drive A
floppy drive u :
Primary display
tovhnarH
Options
360
1.44
ESC:Exit
NOTE :
KB
MB
5 1/4", 1.2
3 i/2", 2.88
According
:
09 : 23 : 35
:
Not Installed
:
:
1.2 MB, 5
:
Not
installed
:
VGA/PGA/EGA
• I ncfallorl
MB
51
/4
",720
MB
3 l/2"not Installed
F2/F3:Color PU/PD:Modify
to
your equipment,
KB
Base memory
Ext. memory
Cyln Head Wpcom LZone Sect Size
615 8 128 615 17 41 MB
1
/4
"
3 1/2",
Sun Mon
28 1
7 8 9 10
1 4
set floppy drive A or B.
Tue
2
15
16 17 18
21
22
23
28 29 30 31 1 2
4
5 6 7 8 9 10
The options are 360KB 51/4", 1.2MB 51/4", 720KB 31/2",
1.44MB 31/2", 2.88MB 31/2" and Not Installed.
Wed
3
24
Thu
:
640 KB
:
31744 KB
Fri
4
5 6
11
12
19
26
25
Sat
13
20
27
3
3-6
Page 37
B IOS Setup
AMIBIOS SETUP PROGRAM
-
STANDARD CMOS SETUP
(C) 1992 American Megatrends Inc., All Rights Reserved
Date (mn/date/year) : Wed, Mar 03 1993
Time (hour/min/sec) : 09 : 23 : 35
Hard disk C: type : 37
Hard disk D: type : Not Installed
Floppy drive A :
Floppy drive B :
Primary display
KpvhnarH
: 1.2 MB, 5
: Not Installed
: I VGA/PGA/EGA 1
•
IndallpH
Options:Monochrome, Color 40x25,
VGA/PGA/EGA, Color 80x25, not installed
ESC:Exit 4,->T<-:Sel F2/F3:Color PU/PD:Modify
NOTE
:
According
types. The options
to
your display card, set primary
are Monochrome,
Cyln Head Wpcom LZone Sect Size
615 8 128 615 17 41 MB
1/4
"
Color 80 x 25, VGA or EGA and Not Installed.
Base memory : 640 KB
Ext. memory : 31744 KB
Sun
Mon
Tue
Wed
28
1 2
7
8 9
1 4
15
16
21
22
23
28 29
30 31 1
4
5 6
Color 40 x 25,
Thu
4
3
11 12
10
17 18 19
24
25 26
7 8
display
Fri
5
2
9 10
Sat
6
13
20
27
3
3-7
Page 38
B IOS Setup
AMIBIOS SETUP PROGRAM-
(C) 1992 American
Date (mn/date/year) : Wed, Mar 03 1993
Time (hour/min/sec) : 09 : 23 : 35
Hard disk C: type : 37
Hard disk D: type : Not Installed
Floppy drive A :
floppy drive B :
Primary display
Keyboard
Options
Installed
:
: 1.2 MB, 5
: Not Installed
: VGA/PGA/EGA
:| Installed |
Test keyboard
not Installed : Do not test keyboard
ESC:Exit 4,->f<-:Sel F2/F3:Color PU/PD:Modify
NOTE
:
When keyboard is installed,
wise, it dose not.
STANDARD CMOS SETUP
Megatrends
All Rights Reserved
Inc.,
Base memory : 640 KB
Ext. memory : 31744 KB
Cyln Head Wpcom LZone Sect Size
8 128 615
615
1/4"
ROM tests keyboard;
Mon
Sun
1 4
21 22
28 29 30 31 1
Tue
28 1
7
4
2
8 9 10
16 17 18 19
15
23
5 6 7 8 9 10
17 41 MB
Wed
3
24
Thu
4
11
25
other¬
Fri
12
Sat
5 6
26 27
2
13
20
3
3-8
Page 39
B IOS Setup
NOTE
AMIBIOS SETUP PROGRAM - BIOS SETUP UTILITIES
(C) 1992 American Megatrends Inc., All Rights Reserved
STANDARD CMOS SETUP
I ADVANCED CMOS SETUP I
AUTO CONFIGURATION WITH BIOS DEFAULTS
AUTO CONFIGURATION WITH POWER-ON DEFAULTS
CHANGE PASSWORD
AUTO DETECT HARD DISK
HARD DISK UTILITY
WRITE TO CMOS AND EXIT
DO NOT WRITE TO CMOS AND EXIT
Advanced CMOS Setup for Configuring System Options.
ESC:Exit 4.->T<-:Sel F2/F3:Color F10:Save & Exit
:
Advanced
tions.
CMOS Setup for configuration
System Op¬
3-9
Page 40
B IOS Setup
AMIBIOS SETUP PROGRAM - ADVANCED CMOS SETUP
(C) 1992 American Megatrends Inc., All Rights Reserved
Above 1 MB Memory Test
Memory Parity Error Check
Hard Disk Type 47 RAM Area : 0 : 300
Numeric Processor Test
System Boot Up Sequence
External Cache Memory
Internal Cache Memory
Password Checking Option
Video ROM Shadow C000.32K : Enabled
Adaptor ROM Shadow C800,32K : Disabled
Adaptor ROM Shadow DOOO,32K : Disabled
Adaptor ROM Shadow D800,32K : Disabled
Adaptor ROM Shadow E000,32K ; Disabled
Adaptor ROM Shadow E800.32K : Disabled