UC-486 UMC
User Manual
PC Main Board
Notice
The information in this document is subject to change in order to improve
reliability, design, or function without prior notice and does not represent a
commitment on the part of this company. In no event will we be liable for
direct, indirect, special, incidental, or consequential damages arising out of the
use or the possibility of such damages.
All trademarks are the property of their respective owners
CONTENTS
1. Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Ovqview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Key Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
2. Jumper Configuration ......................... 2-1
Cache Jvfemory Selection.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
CPU Type Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
CPU Frequency Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
CPU Power Supply Setup. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
Flash ROA1 Option . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
Keyboard Controller Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
JO Function Selection .
Clear CMOS (Jl7) ...... .
Reserved Jumper Settings . . .. . . .. .. . ... . . . .
3. Connector Configuration ....................... 3-1
Power Connector (PSI). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Keyboard Connector (KBl) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Turbo Switch (TURBO) ...... . . .. .. . . .......... . ... ....... 3-1
Turbo LED. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Reset Switch (RESET) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Keylock Connector (KEYLOCK) ........... . .... .. . . . ...... . 3-2
Speaker Connector (SPEAKER) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
Hard Disk LED (HD LED). . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
IO Port Description.
2-4
. . 2-4
2-5
3-3
4. Memory Configuration ......................... 4-1
A1ain A1e111ory Configuration ............... . ... .
Cache .~Jemory Configuration.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
System Clock Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
4-1
i
CONTENTS
5. BIOS Configuration ........................... 5-1
System Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
Fixed Disk Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
Advanced System Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4
Boot Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-8
Secur ity and Anti-Virus. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-9
Green PC Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-9
Save & Exit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-11
n
Introduction
--------------
---------------
Introduction
Overview
P4U880A/IO main board is a PC/AT compatible system board. It features
Write Back/Through secondary cache memory from 128KB to 1024KB in
size. It supports PCI local bus and ISA bus architecture. This main board also
supports Dark Green function (SMM mode of SMI-CPU) to allow maximum
power saving.
Key Features
CPU
Chipset
System memory
Cache memory
Green function
On-board IDE
On-board IO
I/O bus slots
- Intel 80486SX/DX/DX2/SL or Non-SL
25/33/50/66MHz
- Intel 80486DX4 75/lO0MHz
- AMO 486DX/DX2/DX4 40/66/80/100/120MHz
- Cyrix 486DX/DX2 40150MHz
- UMC USS 33MHz
- UMC8886, 8881
- 4 x 72pin SIMM module
- Flexible main memory size from 2MB to 128MB
- Supports Write-Back or Write-Through mode for
128/256/512/1024:KB L2 Cache on board
- Supports 3 Green modes : Doze, Standby and
Suspend
- Supports 4 IDE devices and Enhanced IDE
functions
- UMC 8663A IO on board supports multi-mode
EPP/ECP
- One floppy port supports up to two 3.5" or 5.25"
floppy dnves
- One game port
- Two high speed 16550A compatible UARTs
- One parallel port at I/0 address 378H/278H with
multi-mode function (SPP/EPP/ECP)
- All ports can be enabled or disabled by BIOS Setup
- 32-bit PCI local bus slot x 3
- 16-bit AT bus slot x 4
-
1-1
Introduction
------------------------------------
BIOS
Board size
- Supports Plug and Play BIOS
- 220mm x 260 mm
1-2
Jumper Configuration
--------------------------------------------
Jumper Configuration
WARNING: BEFORE TURNING ON THE SYSTEM POWER,
PLEASE FOLLOW THE FOLLOWING CONFIGURATION
CAREFULLY, OTHERWISE YOUR SYSTEM MAY NOT
OPERATE CORRECTLY.
Cache Memory Selection
Table below is the jumper settings and SRAM selections of secondary cache.
128KB OPEN OPEN OPEN OPEN 2-3 OPEN
256KB/S OPEN OPEN OPEN 1-2
256KB/D
512KB/S
512KB/D
1024KB
Note : D stan<L~ for Double Bank, S stands for Single Bank.
g~
c=ic:==:i
c=i
OPEN OPEN
OPEN CLOSE OPEN 1-2
2-3
l-2
CLOSE OPEN
CLOSE
OPEN OPEN
2-3 1-2 CLOSE
CLOSE 2-3 1-2
□
0
□
Cl
2-3
1-2
2-3
Wik?S@W4ii¥#W&i U7
~¥¥¥¥¥it10
=
=
D
□
□
□
EB
==
=
n
=
D
Figure 2-1 The illustration of cache memory configuration
CJ CJ CJ a::=:::J cr:::::::J
CLOSE
CLOSE
CLOSE
CLOSE
=
=
2-1
Jumper Configuration
----------------------------------------
CPU Type Configuration
WARNING: CPU power supply voltage (Q2) must be set up correctly as page
2-3, before setiing jumpers for CPU selected.
The main board provides a set of jumper settings that facilitate user to selecte
a full range of CPU. When a different 486 CPU installed, you should set the
·umners correctlv otl1e1wise tlle svstem will not work nronerlv.
123 OPEN OPEN
J29 OPEN
133 OPEN OPEN OPEN OPEN
J34
)35
J36 OPEN 1-2 1-2
J37
J38 OPEN OPEN 1--2 OPEN
139 2-3 2-3 1-2, 3-4 1-2, 3-4
J40
)41
)42
J43
J44
J48
OPEN OPEN
OPEN 1-2
OPEN
OPEN 2-3. 4-5
CLOSE CLOSE
OPEN OPEN OPEN OPEN
OPEN OPEN OPEN OPEN
1-2 1-2 1-2
1-2
1-2 2-3 2-3 2-3
OPEN
1-2
1-2 OPEN 1-2 1-2
2-3 2-3 OPEN
1-2 1-2 1-2 1-2
1-2
1-2
1-2 1-2 1-2 OPEN
1-2
2-3 2-3
OPEN OPEN OPEN
1-2, 3-4 1-2, 3-4
3-4
1-2, 3-4
3-4
2-3, 4-5
CLOSE
3-4
1-2
OPEN
2-3. 4-5 2-3, 4-5
CLOSE
2-3 2-3
1-2
1-2 1-2 OPEN
CLOSE
OPEN CLOSE OPEN
OPEN
OPEN OPEN
1-2
1-2
2-3,4-5 OPEN
CLOSE
1-2
1-2
1-2, 3-4
3-4
OPEN
CLOSE
I> rn I t MC I i't rrtfX VA hi~.> k %~ fa ii~~ ffi~!] j;~l~I
> <I> m 1n:H> <ii-~F.iun~Nw~,n i®ifJ~~IJ;; ~w~lt
)23
)29
)33
J34
)35
136
J37 1-2
138 OPEN OPEN OPEN OPEN
139
140 1-2 3-4
)41
)42
J43
J44
)48
3-4 1-2 OPEN X OPEN
OPEN
OPEN
OPEN OPEN
OPEN 1-2 OPEN OPEN OPEN
1-2 2-3 1-2
2-3 1-2 1-2 1-2
:!~3
2-3
1-2 OPEN
2-3
1-2, 3-4 1-2, 3-4 1-2, 3-4
1-2 1-2
3-4 3-4 3-4 3-4
1-2
OPEN
1-2 1-2 OPEN
OPEN 2-3 OPEN
OPEN OPEN
1-2 1-2 1-2
1-2 1-2 1-2
1-2
2-3 2-3 1-2
1-2 1-2 2-3
1-2, 3-4 1-2, 3-4 1-2, 3-4
1-2 OPEN
3-4
OPEN 2-3 OPEN OPEN 1-2, 3-4 1-2, 3-4 OPEN
OPEN
2-3 OPEN OPEN
OPEN 1-2, 3-4
OPEN OPEN
3-4
2-3, 4-5 2-3, 4-5 OPEN
3-4
OPEN
CLOSE OPEN CLOSE CLOSE CLOSE CLOSE CLOSE
OPEN
OPEN OPEN OPEN OPEN OPEN
OPEN
2-2
Jumper Configuration
-----------------------
CPU Frequency Configuration
50MHz
CPU Power Supply Setup
WARNING: Make sure that the CPU Power Supply Voltage is correct,
otherwise the CPU could he damaged.
5V 486 CPU
2. Without transistor Q4 on board
Only supports 5V CPU
Close Open Open
Close
□
D
=
□
Cl
=
li!iii.J33
J13~=
J19
Cl
-
-~□
□
____ J43:=J.al
'---- --'I r::
CJ CJ CJ a:::==i cc::::J
Figure 2-2 The illustration of jumper settings related to CPU
2-3
Jumper Configuration
---------------------------------------------------
Flash ROM Option
Flash ROM 12V 1-2
Flash ROM 5V
EPROM
Keyboard Controller Selection
2-3
Open
Ex1emal KC 2-3 2-3
Internal KC
1-2 1-2
1-3, 2-4
5-7, 6-8
7-9, 8-10
2-3
1-2
1-2 2-3
2-3 1-2
IO Function Selection
On hoard JO Close
External IO
O;-en
Close
Open
Clear CMOS ( Jl 7)
If the RTC installed is BENCHMARK BQ-3287 A, the following procedures
should be taken for clearing CMOS :
1. Power on the system, close Jl 7 once, then leave J 17 open
2. Power off the system, wait for 3-5 seconds
3. Power on the system again, now all the CMOS settings are cleared.
Then enter BIOS Setup and set up your system.
If the RTC installed is DALLAS DS-12887 A, just close Jl 7 once when power
off.
JI J2
□
l!1!E"il
J3i::::==J :-==;--c_= _= _= _= _= ~::::;-;~=====~
i::::==:J
□
□
-.?.!11J31
~m
~--==~~~
2-4
□
Figure 2-3 The illustration of some jumper settings
CJ CJ c=i cc=::::::J cc::::::i
=
D
=
=
Jumper Configuration
---------------------------------------------
Reserved Jumper Settings
J4 2-3 JS 2-3
J6 2-3
J8 2-3
JlO
Jl2
Jl4 2-3 JIS Close
Jl6
J20 2-3 J30 0 en
2-3 JI 1
2-3
1-2
J7
J9
Jl3
Jl8
1-2
2-3
1-2
2-3
2-3
-
g~
C:=:J[===:J
C:=:J
D
D
fl
D
J20{&
J/4
LJ
□
,, Jf6
□
D
J4 IIZJ9Z3l JS
□
J30
=
=
[El
[]
D J?c
- J/8
□
=
Figure 2-4 The illustration of reserved jumper settings
~
==
I
=
D
CJ CJ CC=::J
=
=
=
~
2-5
Jumper Configuration
-----·---------------------
--This page is intentionally left blank--
2-6
Connector Configuration
-------------------
Connector Configuration
Power Connector ( PSl )
} t<.IN Nl
K
1 Power good
2
3 +12V
4
5 GND
6 GND
7
8
9 -5V
10
11 +5V
12 +5V
+5V
-12V
GND
GND
+5V
Keyboard Connector ( KBl)
CLOCK
2
3 NC
4
5
DATA
GND
+5V
-
Turbo Switch ( TURBO )
Turbo LED
Reset Switch ( RESET )
CLOSE ONCE RESET THE SYSTEM
OPEN
NORMAL
3-1
Connector Configuration
-----------------------------------------
Keylock Connector ( KEYLOCK)
2
3
4
5
Speaker Connector ( SPEAKER)
2
3
4
Hard Disk LED ( HD LED)
2
+5V
NC
GND
KEYLOCK
GND
SPKDATA
NC
GND
vcc
LED CATHODE
L"'.D ANODE
□
I HVlfV
□
=
=
EB
C
□
==
3-2
LJ
RfSfT T/JRBO IE) TURBO KEYlOCI( SPEAKER
~
EU 11111
Figure 3-1 The illustration of connector configuration
=
D
~
IEIIID
=
=
Connector Configuration
---------------------------------------------------
IO Port Description
JHl
JH2
-- ~- -- -·····---~-~--
CN3
CN4
CNS
CN6 Grune Port
CN7
Note: Adaptec AHA-29.:/0 SCSI card can be used 011 PC/ slot PC/ 1 & PC/
3, but not on PC/ 2.
Primary IDE port
Seconda ry IDE port
Flo py Drive Port
UART I
UART2
Parallel Port
□
D
D
[__I
CJ
=
EB
~=
==
CJ
□
LJ
CJ c:::i CJ a::::::::::::J c::r:::::::::J
Figure 3-2 The illustration of IO port description
=
=
D
3-3
Connector Configuration
----------------------------------
--This page is intentionally left blank--
3-4
f'
'l
Eoard £a11011t of
UC-486 UM< V1.1
Keyboard connector
Keyboard control ler
select ion
UART 2 port
UART 1 port
Floppy drive port
Secondary IDE port
HD LED connector
Clear CMOS
10 function selection
J49 J50
On board 10 Close Close
External 10 Open Open
Power connector
Game port
J4~J16, J18, J20
Reserved
CPU Frequency
Configuration
J21
Flash ROM 12V 1-2
Flash ROM 5V 2-3
EPROM Open
Keyboard contro ller
selection
Reserved
Keyboard controller
selection
J24 ~ J28
Cache memory
configuration
(See page 2-1)
29 J33 ~ J44, J48
J23, J , nfi1.1uration
CPU type co "'
(See page 2-2)
CPU power
supply setup
(See page 2-3)
Memory Configuration
--------------------------------
Memory Configuration
Main Memory Configuration
The P4U880A/IO main board supports single-bank 72-pin SIMMs or
double-bank 72-pin SIMMs providing a flexible size from 2MB up to 128MB
main memory. Only one type SIMM (72-pin) will be recognized, please do
not plug in two types of SIMM on a bank simultaneously.
2 MB
4 MB 4 MB x 1
8 MB 4 MB x 1
8 MB
12 MB 4 MB x 1 4 MB x 1
16 MB 4 MB x 1 4 MB x 1
16 MB
16 MB 16 MB x 1
32 MB 16 MB x l
32 MB 16 MB x 1 16 MB x 1
32 MB 32 MB x 1
48 MB
64 MB
128 MB
1 MB x 1 l MB x 1
4 MB x 1
8 MB x 1
4 MB x 1
4 MB x 1 4 MB x 1
8 MB x 1 8 MB x 1
16 MB x 1
16 MB x 1 16 MB x 1 16 MB x 1
32 MB x 1 32 MB x 1
32 MB x 1 32 MB x 1 32 MB x 1
32 MB x 1
Cache Memory Configuration
P4U880A/IO main board supports 128/256/512/1024KB of secondary cache
memory. The secondary cache memory consists of one Tag SRAM and 4 or
8 Data SRAMs.
128KB 8K x 8
256KB/S*
256KB/D* 32K x 8 32K x 8 x 8 U(6-13)(Pin3-30)
512KB/S* 32K x 8 128K x 8 x 4 U(l0-13)
512KB/D*
1024KB
32K x 8
32K x 8 64K x 8 x 8 U(6-13)
64K x 8
32K x 8 x 4
64K x 8 x 4
128K x 8 x 8 U 6-13
U(l0-13)(Pin3-30)
U(l0-13)
4-1
Memory Configuration
System Clock Configuration
CPU should work at proper clock frequency. The system clock frequency
should not exceed the CPU maximum working frequency. Table below is the
maximum worl<ing frequency of different CPU types.
System
Clock
25MHz 33MHz
40MHz
50MHz 25MHz
33MHz 25MHz 33MHz 40MHz
f_ffif_ij;iiffiJW.&t..#t'~ 3
~f&$~%Wa l!IJ
b@1'.l;;@l{K-•iwlu1:t
f k4H4ik#¥¥tt#f1Wfld u1:
~/ft\@f&rf$.'fffiM'1:j¥~l"1 I
rtitffe/41 1it¥K&W\WJ&~ 111
tifll?&W @J;,i:t#)ttc:t i,.,,_lt'l urn
!'M'ffi\"$iM'ifrt'~t11:n;¾) l •
~ISn~
m J:19 Jn DJ J4fl
111
:,
4-2
RfITT 1111110 /ID 1VHO IDWct SP(AKfR
ml m&llK'ZI~~
Figure 4-1 The illustration of board layout
,..
""
BIOS Configuration
--------------·--------------------------~--
II BIOS Configuration
P4U880NIO main board provides an easy-to-use Phoenix BIOS for you to
set up your system and store your system information in CMOS RAM.
After power on or reset the system, the following messages appear :
Press <DEL> to enter SETUP, then you can press <DEL> to enter BIOS
SETUP main menu as shown below :
Main Menu
System Setup
Fixed Disk Setup
Advanced System Setup
Boo\ Opt ions
Security and Anti -V irus
Green PC Features
Load ROM Default Va lues
Load Values from CMOS
Save Values to CMOS
-
t 1-Move
Fl He lp
Enter Select
ESC Exit
FI0 Save & Exit
System Setup
Use arrow keys to highlight the System Setup selection in main menu then
press <Enter> and the System Setup menu will appear as shown below :
System Setup
System Time
System Date
Video System
System Memory
E>.1cnded Memory
Diskette Drive A
Diskette Drive B
t 1-Move ESC Exit PgUp Previous Value
Fl 1-ldp PgDn Next Value
: [ 4:51:52)
: [01/14/1994)
: [EGA/ VGA)
: 640 KB
:7MB
: [Not Installed)
: [Not Installed]
F5 Previous Configuration
F6 Default Configuration
5-1
BIOS Configuration
----------------------------- -------------
System Time/Date : Use arrow keys to move the highlight cursor to the
time and date that you want to modify, then use
<PgUp> or <PgDn> key to modify the value.
Video System : Use arrow keys to highlight this option then use
<PgUp> or <PgDn> to select the correct value.
System'E'XlerdedMem:uy : Auto configured by BIOS and cannot be modified.
Diskette Drive A/B : Use arrow keys to highlight this option then use
<PgUp> or <PgDn> to select the correct floppy
drive settings.
Fixed Disk Setup
Use arrow keys to highlight Fixed Disk Setup in the main menu and press
<Enter> to enter Fixed Disk Setup menu as shown below :
Fixed Disk Setup
. IDE Adapter O Master (C:212Mb)
. IDE Adapter O Slave (None)
. IDE Adapter 1 Master (None)
. IDE Adapter 1 Slave (None)
HMove
Fl Help
Large Disk Access Mode
UMC 8673 built-in PC! IDE
Enter Select
ESC Exit
[DOS)
f Both l
FlO Save & Exit
UMC 8673 built-in PCI IDE: If using on-board IDE connector, you should set
this option [Both] ,and if using other IDE adapter,
you should set this option [Disabled].
Large Disk Access Mode : Available options are DOS and OIBER .
Fixed Disk Configuration: Use arrow keys to highlight the IDE adapter that
you want to configure and press <Enter> to enter
the next menu as shown below:
Note: For different Hard Disks, the parameters of the following menu are
different.
5-2
BIOS Configuration
---------------------------------
IDE Adapter O Master (C:212Mb)
Autotype Fixed Disk : [Press Enter]
Type
Cylinders
Heads
Sectors / Track
Write precomp
Muti-Sector Transfers : I 6 Sectors
LBA Mode Control : [Disabled) 0"
32 Bit 1/0 : [Disabled] o"
t-l-Move
Fl Help
If the Type option is set to [Auto], BIOS will atJtO detect Hard Disk during
system boot. If you want BIOS to auto-type the Hard Disk, you can highlight
the Autotype Fixed Disk option then press <Enter>. You can also manually
select the Hard Disk type by choosing the BIOS built-in Hard Disk Table. Use
arrow keys to highlight the Type option and use <PgUp> or <PgDn> to select
the correct HD type from BIOS HD table. If your Hard Disk has cylinder
greater than 1024, set LBA Mode Control to [Enable] for the maximum use
of your Hard Disk.
Enter Select
ESC Exit
: [Auto] 212Mb
683
16
38
None
FIO Save & Exit
-
5-3
BIOS Configuration
---------------------------
Advanced System Setup
Use arrow keys to highlight the Advanced System Setup option in main menu
and press <Enter> to enter the Advanced System Setup menu as shown below:
Advanced S vs tern Setup
Waming'
Items on this menu, if set incorrectly,
could cause your system to malfuction .
.Integrated peripherals
.Memory Cache
.Memory Shadow
.Advanced Chipset Control
. PC! Devices
Plug & Play O/S [No] y I? S,
Reset Configuration Data [Nol
ttMov e
Fl Help
Integrated
Peripherals
To configure on board IO, use arrow keys to highlight this
option and press <Enter> to enter Intergrated Peripherals
Enter Select
ESC Exit
FlO Save & Exit
menu as shown below:
Integrated Peripherals
COM port
COM po11
LPT port
Diskette controller
LPT ex1end mode
Game port
t tMove ESC Exit PgUp Previous Value F5 Previous Configuration
Fl Help PgDn Ne"t Value F6 Default configuration
: [ 3F8, IRQ4]
: [ 2F8, IRQ3 ]
: [ 378, IRQ7 ]
: [Enabled]
: [ Standard ]
: [ Enabled l
COM port : Use arrow keys to highlight this option, use <PgUp> or <PgDn>
key to setup on board IO COM port address or [disabled].
LPT port : Use arrow keys to highlight this option, use <PgUp> or <PgDn>
key to setup on board IO LPT port address or [disabled].
Diskette controller : Use arrow keys to highlight this option, use <PgUp> or
<PgDn> key to setup on board IO Diskette Controller [Enabled]
or [Disabled].
LPT extend mode : Use arrow keys to highlight this option, use <PgUp> or
<PgDn> key to setup on board IO LPT extend mode: Standard,
ECP or EPP .
5-4
BIOS Configuration
Game port : Use arrow keys to highlight this option, use <PgUp> or <PgDn>
Mcmo11' Cache: To configure your memory cache, use arrow keys to
key to setup on board Game port [Enabled] or [Disabled].
highlight this option and press <Enter> to enter memory
cache menu as shown below :
Memory Cache
Cache Auto Configuration
E:-.1cmal Cache
System BIOS Cacheable
Video BIOS Cacheable
L2 Cache Write Back
Cache Speed
CPU Cache Policy
L2 Cache Tag Length
: [Enabled]
: I Enabled ]
: [ Disabled ] t:"
: [ Disabled ] c n
: [Enabled]
2-2-2-2 l 'I 1v1
: [ Write Back ]
7 bits
t tMove ESC Exit PgUp Previous Value F5 Previous Configuration
Fl Help PgDn Nexi Value F6 pefault configuration
Note:
1. Jfyou want to re-configure the cache speed, you should.first S£.'l Cache
Auto Configuration option to [ Disabled J
2. If system clock is SOM Hz (Intel 486DX50), the cache speed should always
be 3-2-2-2.
-
5-5
BIOS Configuration
Mm10ryShadow: Use arrow keys to highlight this option in Advanced
System Setup menu and press <Enter> to enter Memory
Shadow submenu as shown below :
Memorv Shadow
System shadow : Enabled
Video shadow
Shadow memory regions
C800 - CBFF
CC00 - CFFF
0000 - D3FF
040 0 - O7FF
0800 - DBFF
DC00- DFFF
: [Enabled]
: [Disabled]
: [Disabled]
: [Disabled]
: (Disabled]
: [Disabled]
: [Disabled]
t J.Move ESC Exit PgUp Previous Value F5 Previous Configura tion
Fl Help PgDn Next Value F6 Default Configuration
Use arrow keys to select the item and use <PgUp> or <PgDn> to modify the
value. To return to the previous menu press <ESC>.
Ach·anccd Chipsct Contml: Use arrow keys to highlight this option in Advanced
System Setup menu and press <Enter> to enter
Advanced Chipset Control as shown below :
Advanced Chipset Control
Chipset Auto Configuration : [Enabled]
DRAM Read Wait State : I ;,
DRAM Write Wait State : 1 0
Resource Lock For DRAM : [Disabled]
Host-to-PC! Wait State
PC! Parity Check : [Disabled]
DRAM Parity Check : (Disabled]
LDEV# Sampling Point : 1 T2
: [1] 0
IJ!n
dn
0()
t J.Move ESC Exit PgUp Previous Value F5 Previous Configuration
Fl Help PgDn Next Value F6 Default Configuration
Note: It is recommended that DRAM Read/Write Wait State should he
greater than or equal to 1 wait state.
5-6
BIOS Configuration
--------------·----------------------·-----
PCI Devices: Use arrow keys to highlight this option in Advanced System
't-l-Move ESC Exit PgUp Previous Value FS Previous Configuration
The items in PCI Devices menu cairnot be displayed on a single screen, you
can use arrow keys to scroll the whole items up or down and use <PgUp> or
<PgDn> key to modify the value of each item. To return to the previous menu
press <ESC> key.
Plug and Play O/S : If using Plug and Play O/S, set this option [Yes].
Setup menu and press <Enter> to enter PCI Devices menu as
shown below :
PC! Devices
PC! Auto Configuration
PC! Device, Slot # 1
Enable Master
Use Default Latency Timer Value
Latency Time r Value
PC! Device, Slot # 2
Enable Master
Use Default Latency Timer Value
Latency Timer Value
PC! Device, Slot # 3
Fl Help PgDn Next Value F6 Default Configuration
: [Enabled]
: [Enabled)
: [Yes]
: (00400]
: [Enabled]
: [Yes]
: [00400]
-
Warning: As this BIOS supports Plug & Play function, if a Non-PnP card
is use</, it maybe conflict with other devices. In that case, you should
configure it correctly as follows:
J. Chang the jumper settings of your Non-PnP card to avoid conflict with
other devices.
2. Add the configuration data of this card to ESCD ( Extend System
Configuration Data ) through system utility, such as Intel ICU (ISA
Configuration Utility), Windows 95, etc.
Reset Configuration Data: If set [ Yes], all system configuration data will
be reset.
5-7
BIOS Configuration
Boot Options
Use arrow keys to highlight Boot Options in the main menu and press
<Enter> to enter Boot Options menu as shown below :
Boot Options
Boot sequence
SETUP Prompt
POST En-ors
Floppy check
Summary Screen
t tMove ESC Exit PgUp Previous Value F5 Previous Configuration
FI Help PgDn Nex1 Value F6 Default Configuration
Boot Options menu gives you the options to choose the system boot up
sequence. You can use arrow keys to highlight the item then use <Pg Up> or
<PgDn> key to change the value. To return to the main menu press <ESC>
key.
: [ C: then A:
: [ Enabled J
: [ Enabled J
: [ Disabled)
: I Enabled l
5-8
BIOS Configuration
-------------------------------------------------
Security and Anti-Virus
Use arrow keys to highlight Security and Anti-Virus in the main menu and
press <Enter> to enter security and Anti-Virus menu as shown below :
Security and Anti-Virus
Supervisor Password is
User Password is
Set Supervisor Password
Set User Password
: [Disabled]
: [Disabled]
: [Pres s Enter]
: [Disabled]
Password on boot
Diskette access
Fixed disk boot sector
t.J-Move
The Phoenix BIOS gives you a tight control on your computer through the
settings of Supervisor Password and User Password, if you want to set" or
change the password, use the arrow keys to highlight Set Supervisor Password
item and press <Enter> . Use keyboard to enter the new password and press
<Enter>, then the system will ask you to re-enter it and press <Enter>. Your
new password will take effect until you save & exit setup and reboot the
system. To return to the main menu press <ESC>.
Exit PgUp Previous Value
ESC
Fl
Help PgDn
Ne>.1 Value
: [Disabled]
: [Supervisor]
: [Disabled]
F5
Previous Configuration
Default Configuration
F6
Green PC Feature
P4U880NIO Main Board features a most efficient power saving management
and supports all 486 CPUs for green feature (Non-SMI 486 IRQ green mode
and SMI-CPU in SMM mode). In Doze mode CPU clock will be slowed
down to 1/2 of normal speed for a SMI-CPU or be switched to 8MHz for a
normal CPU. In Standby mode CPU clock will be slowed down to 1/4 of
nonnal speed for a SMI-CPU or be kept in 8 MHz for a normal CPU and the
screen will be blank , hard disk will be powered down if set in BIOS. In
Suspend mode CPU will be stopped working for a Intel SL Enhanced or Cyrix
CPU while other CPUs will be worked in their slowest state in order to save
energy. In any of the 3 green mode you could wake up the system by pressing
any key or a pre-set wake up event.
-
5-9
BIOS Configuration
Use arrow keys to highlight Green PC Features and press <Enter> to enter
Green PC Features menu as shown below :
Green PC Features
APM
Power Saving Mode
System Doze Timer
System Standby Timer
System Suspend Timer
Wakeup systein during suspend
Wakeup time AT (hour)
Wakeup time AT (minute)
VGA with Power Dm,'n featu re
Non-SM! CPU suppor1
IDE Hard Disk Standby Timer
Advanced Power Management Setup
: [Enab led]
: (Disab led]
: [15 sec)
: (2 min)
: [2 min)
: [Disabled)
: [Ohr]
: [O min]
: [None]
: [Gemerate IRQl O]
: [Dis ab led)
t tMow ESC Exit PgUp Previous Value
Fl Help PgDn Ne:-.1 Value
FS Previous Configuration
FG Default Configuration
The items in Green PC Features menu cannot be displayed on a single screen,
you can use arrow keys to scroll the whole items and use <PgUp> or <PgDn>
key to modify the value of each item. To return to the previous menu press
<ESC> key.
VGA with Power Down feature: If set then VGA screen will be blank when
entering Standby mode .
IDE Han:l Disk Standby Timer: If timer set, Hard Disk will tum down power,
when there is no disk access and time-out.
(Only valid for the Hard Disk with power
management feature)
5-10
BIOS Configuration
-------------------------------------------~-------
Save & Exit
After you configure all BIOS settings, you should return to the main menu by
pressing <ESC> key and save your changes to CMOS RAM and reboot the
system so that all your changes of configurations can take effect. To save the
settings, press <Fl0> and the following screen will appear as shown below
then press <Y> and <Enter> to save the value and reboot the system.
Warning!
Configuration has not been saved.
save before exiting?
[Yes] [No]
Save Values to CMOS
Space Select Enter Accept
-
5-11
j ·
I
I
I
ji
I
r
!
PIN 430-01007-611
Manual of P4U880NIO Ver 1.1
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