AOpen AK77PRO User Manual
AAKK7777 PPlluuss // AAKK7777 PPrroo OOnnlliinnee MMaannuuaall
Overview
AK77 Plus / AK77 Pro
DOC. NO.: AK77P-OL-E0110E
1
Installation
Hardware
Drivers &
Utilities
BIOS Setup
AWARD
Glossary
Troubleshooting &
Technical Support
AAKK7777 PPlluuss // AAKK7777 PPrroo OOnnlliinnee MMaannuuaall
WWhhaatt’’ss iinn tthhiiss mmaannuuaall
AK77 Plus / AK77 Pro.............................................................................................................................1
What’s in this manual...................................................................................................................................................... 2
You Must Notice.............................................................................................................................................................. 8
Before You Start.............................................................................................................................................................. 9
Overview....................................................................................................................................................................... 10
Feature Highlight ...........................................................................................................................................................11
Quick Installation Procedure ......................................................................................................................................... 15
Motherboard Map.......................................................................................................................................................... 16
Block Diagram .............................................................................................................................................................. 17
Hardware Installation ......................................................................................................................18
Clear CMOS Data ......................................................................................................................................................... 19
CPU Installation ............................................................................................................................................................ 20
JP21 FSB/PCI Clock Ratio............................................................................................................................................ 22
CPU Jumper-less Design .............................................................................................................................................. 23
CPU and Housing Fan Connector (with H/W Monitoring) .............................................................................................. 28
SDRAM Socket ............................................................................................................................................................. 29
System and RAM Power Indicate LED .......................................................................................................................... 31
Front Panel Connector .................................................................................................................................................. 32
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ATX Power Connector................................................................................................................................................... 33
AC Power Auto Recovery.............................................................................................................................................. 34
JP28 Keyboard Wake-up .............................................................................................................................................. 34
IDE, Floppy and IDE RAID (AK77 Plus only) Connector ............................................................................................... 35
IDE RAID Controller (AK77 Plus only) .......................................................................................................................... 37
IrDA Connector ............................................................................................................................................................. 38
WOM (Zero Voltage Wake on Modem) Connector......................................................................................................... 39
WOL (Wake on LAN)..................................................................................................................................................... 42
AGP (Accelerated Graphic Port) Expansion Slot ........................................................................................................... 44
CNR (Communication and Network Riser) Expansion Slot............................................................................................ 45
PC99 Color Coded Back Panel ..................................................................................................................................... 46
Support 2nd & 3rd USB Port............................................................................................................................................ 47
Chassis Intrusion Sensor .............................................................................................................................................. 48
CD Audio Connector ..................................................................................................................................................... 49
Modem Audio Connector............................................................................................................................................... 50
AUX-IN Connector ........................................................................................................................................................ 51
Front Audio ................................................................................................................................................................... 52
Die-Hard BIOS (100% Virus Protection, Optional) ........................................................................................................ 53
Dr. LED Connector (Upgrade Optional)......................................................................................................................... 56
Battery-less and Long Life Design ................................................................................................................................ 58
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Over-current Protection ................................................................................................................................................. 59
Hardware Monitoring..................................................................................................................................................... 60
Resettable Fuse ............................................................................................................................................................ 61
Year 2000 (Y2K) ........................................................................................................................................................... 62
2200
μf
Low ESR Capacitor ......................................................................................................................................... 63
Layout (Frequency Isolation Wall)................................................................................................................................. 65
Fansink on North Bridge ............................................................................................................................................... 66
Driver and Utility..............................................................................................................................67
Auto-run Menu from Bonus CD Disc ............................................................................................................................. 68
Installing Windows 95 ................................................................................................................................................... 69
Installing Windows 98 ................................................................................................................................................... 70
Installing Windows® 98 SE, Windows® ME & Windows®2000 ........................................................................................ 71
Installing VIA 4 in 1 Driver............................................................................................................................................. 72
Installing Onboard Sound Driver ................................................................................................................................... 73
Install Onboard IDE RAID Driver (AK77 Plus only) ....................................................................................................... 74
Install FastCheck™ Monitoring Utility (AK77 Plus only) ................................................................................................ 74
Installing Hardware Monitoring Utility............................................................................................................................ 75
ACPI Suspend to Hard Drive......................................................................................................................................... 76
ACPI Suspend to RAM (STR) ....................................................................................................................................... 80
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AWARD BIOS ....................................................................................................................................82
How To Use Award™ BIOS Setup Program .................................................................................................................. 83
How To Enter BIOS Setup............................................................................................................................................. 85
BIOS Upgrade............................................................................................................................................................... 86
Overclocking ....................................................................................................................................88
VGA Card & Hard Disk.................................................................................................................................................. 89
Glossar y ...........................................................................................................................................90
AC97............................................................................................................................................................................. 90
ACPI (Advanced Configuration & Power Interface) ....................................................................................................... 90
AGP (Accelerated Graphic Port) ................................................................................................................................... 90
AMR (Audio/Modem Riser) ........................................................................................................................................... 91
AOpen Bonus Pack CD................................................................................................................................................. 91
APM (Advanced Power Management)........................................................................................................................... 91
ATA (AT Attachment) ..................................................................................................................................................... 91
ATA/66 .......................................................................................................................................................................... 91
ATA/100 ........................................................................................................................................................................ 92
BIOS (Basic Input/Output System)................................................................................................................................ 92
Bus Master IDE (DMA mode) ........................................................................................................................................ 92
CNR (Communication and Networking Riser) ............................................................................................................... 92
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CODEC (Coding and Decoding).................................................................................................................................... 93
DDR (Double Data Rate) SDRAM ................................................................................................................................. 93
DIMM (Dual In Line Memory Module)............................................................................................................................ 93
DMA (Direct Memory Access) ....................................................................................................................................... 93
ECC (Error Checking and Correction) ........................................................................................................................... 94
EDO (Extended Data Output) Memory .......................................................................................................................... 94
EEPROM (Electronic Erasable Programmable ROM) ................................................................................................... 94
EPROM (Erasable Programmable ROM) ...................................................................................................................... 94
EV6 Bus........................................................................................................................................................................ 95
FCC DoC (Declaration of Conformity) ........................................................................................................................... 95
FC-PGA (Flip Chip-Pin Grid Array)................................................................................................................................ 95
Flash ROM.................................................................................................................................................................... 95
FSB (Front Side Bus) Clock .......................................................................................................................................... 96
I2C Bus.......................................................................................................................................................................... 96
IEEE 1394..................................................................................................................................................................... 96
Parity Bit ....................................................................................................................................................................... 96
PBSRAM (Pipelined Burst SRAM)................................................................................................................................. 97
PC-100 DIMM ............................................................................................................................................................... 97
PC-133 DIMM ............................................................................................................................................................... 97
PC-1600 or PC-2100 DDR SDRAM............................................................................................................................... 97
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PCI (Peripheral Component Interface) Bus ................................................................................................................... 97
PDF Format .................................................................................................................................................................. 98
PnP (Plug and Play)...................................................................................................................................................... 98
POST (Power-On Self Test) .......................................................................................................................................... 98
RDRAM (Rambus DRAM) ............................................................................................................................................. 98
RIMM (Rambus Inline Memory Module) ........................................................................................................................ 99
SDRAM (Synchronous DRAM)...................................................................................................................................... 99
Shadow E2PROM.......................................................................................................................................................... 99
SIMM (Single In Line Memory Module) ......................................................................................................................... 99
SMBus (System Management Bus)............................................................................................................................. 100
SPD (Serial Presence Detect)..................................................................................................................................... 100
Ultra DMA ................................................................................................................................................................... 100
USB (Universal Serial Bus) ......................................................................................................................................... 101
VCM (Virtual Channel Memory)................................................................................................................................... 101
ZIP file ........................................................................................................................................................................ 101
Troubleshooting.............................................................................................................................102
Technical Support..........................................................................................................................106
Product Registration .....................................................................................................................109
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YYoouu MMuusstt NNoottiiccee
Adobe, the Adobe logo, Acrobat is trademarks of Adobe Systems Incorporated.
AMD, the AMD logo, Athlon and Duron are trademarks of Advanced Micro Devices, Inc.
Intel, the Intel logo, Intel Celeron, Pentium II, Pentium III are trademarks of Intel Corporation.
Microsoft, Windows, and Windows logo are either registered trademarks or trademarks of Microsoft Corporation in the United
States and/or other countries.
All product and brand names used on this manual are used for identification purposes only and may be the registered trademarks
of their respective owners.
All of the specifications and information contained in this manual are subject to change without notice. AOpen reserves the right to
revise this publication and to make reasonable changes. AOpen assumes no responsibility for any errors or inaccuracies that may
appear in this manual, including the products and software described in it.
This documentation is protected by copyright law. All rights are reserved.
No part of this document may be used or reproduced in any form or by any means, or stored in a database or retrieval
system without prior written permission from AOpen Corporation.
Copyright
©
1996-2000, AOpen Inc. All Rights Reserved.
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BBeeffoorree YYoouu SSttaarrtt
This Online Manual will introduce to the user how this product is installed. All useful information will be described in later chapters.
Please keep this manual carefully for future upgrades or system configuration changes. This Online Manual is saved in PDF format,
we recommend using Adobe Acrobat Reader 4.0 for online viewing, it is included in Bonus CD disc
from Adobe web site
Although this Online Manual is optimized for screen viewing, it is still capable for hardcopy printing, you can print it by A4 paper
size and set 2 pages per A4 sheet on your printer. To do so, choose File > Page Setup and follow the instruction of your printer
driver.
Thanks for the help of saving our earth.
.
or you can get free download
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OOvveerrvviieeww
Thank you for choosing AOpen AK77 Plus / AK77 Pro. The AK77 Plus / AK77 Pro is AMD® Socket 462 motherboard (M/B) based on
the ATX form factor featuring the VIA Apollo KT266 chipset
®
AMD
Socket 462 series Athlon™ & Duron™ processor and 266MHz EV6 system bus. In the AGP performance, it has one AGP slot
and supports AGP 1X/2X/4X mode and pipelined spilt-transaction long burst transfer up to 1066MB/sec. With high bandwidth
266MB/s 8-bit V-Link Host Controller, PC1600
maximum memory size can be up to 3GB. The on-board IDE controller supports Ultra DMA
up to 100MB/s. AK77 Plus with a Promise
FastTrak™ 100 Lite IDE RAID controller that
provides high performance and fault tolerance.
Further flexibility can be achieved by taking
advantage of the Communication and Network
Riser (CNR) card option that allows audio and
modem configuration on a single baseboard design.
Besides, the AK77 Plus / AK77 Pro has an AD 1885
AC97
CODEC chipset onboard for provides high
performance and magic surround stereo sound to
let people enjoy working with it. Now, enjoy all
features from AOpen AK77 Plus / AK77 Pro.
. As high performance chipset built in the M/B, the AK77 Plus / AK77 Pro
and PC2100 DDR SDRAM can be applied to the AK77 Plus / AK77 Pro and the
®
33/66/100 mode and the transfer rate
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AAKK7777 PPlluuss // AAKK7777 PPrroo OOnnlliinnee MMaannuuaall
FFeeaattuurree HHiigghhlliigghhtt
CPU
Supports AMD® Socket 462 Athlon™ & Duron™ 600MHz~1GHz+ with 266MHz EV6 Bus designed for Socket 462 technology.
Chipset
The VIA Apollo KT266 consists of the VT8366 V-Link DDR Host system controller and the VT8233 highly integrated V-Link Client
PCI/LPC controller. The Host system controller provides superior performance between the CPU, SDRAM, AGP bus, and V-Link
interface with pipelined, burst, and concurrent operation. The VT8233 V-Link Client controller is a highly integrated PCI/LPC
controller. Its internal bus structure is based on 66MHz PCI bus that provides 2x bandwidth compare to previous generation
PCI/ISA bridge chips. The VT8233 integrated Client V-Link controller with 266MB/s bandwidth between Host/Client V-Link interface,
provides a V-Link-PCI and V-Link-LPC controller. Of five PCI slots provided, AK77 Pro supports all five master PCI slots with
arbitration and decoding for all integrated functions and LPC bus; while AK77 Plus supports four master PCI slots for arbitration
and decoding functions also and one slave PCI slot.
Expansion Slots
Including five 32-bit/33MHz PCI, one CNR and one AGP 4X slots. The PCI local bus throughput can be up to 132MB/s. The
Communication & Nectworking Riser (CNR)
Modem/Audio card. The Accelerated Graphics Port (AGP)
speed. The AGP video cards support data transfer rate up to 1066MB/s. As AK77 Plus / AK77 Pro includes one AGP expansion slot
for a bus mastering AGP graphic card, For AD and SBA signaling, AK77 Plus / AK77 Pro can support 133MHz 2X/4X mode.
slot provided from AK77 Plus / AK77 Pro can support CNR interface for a
specification provides a new level of video display sophistication and
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Memory
With VIA Apollo KT266 chipset, the AK77 Plus / AK77 Pro can support Double-Data-Rate (DDR) SDRAM. The DDR SDRAM
interface allows zero wait state bursting between the SDRAM and the data buffers at 66/100/133MHz. The six banks of DDR
SDRAM can be composed of an arbitrary mixture of 1M/2M4M/8M/16M/32M/64MxN SDRAM and maximum up to 3GB. The AK77
Plus / AK77 Pro allows SDRAM to run at either synchronous or pseudo-synchronous mode with the host CPU bus frequency
(66/100/133MHz).
Ultra DMA 33/66/100 Bus Mater IDE
Comes with an on-board PCI Bus Master IDE controller with two connectors that supports four IDE devices in two channels,
supports Ultra DMA
33/66/100, PIO Modes 3 and 4 and Bus Master IDE DMA Mode 4, and supports Enhanced IDE devices.
On-board ATA/100 IDE RAID (AK77 Plus Only)
1. Supports data striping (RAID 0) and mirroring (RAID 1). Provides dramatic increase in drive performance and/or fault tolerant
options. Offers performance customization and data rebuilds from the BIOS menu. Mirroring supports automatic background
rebuilds. Fault tolerance can be restored automatically without rebooting.
2. Supports up to four IDE drives which capacities are more than 8.4GB on the two IDE RAID connectors while still supporting
four IDE devices on the motherboard. The burst data transfer rates can up to 100MB/s from ATA/100 drives to boast overall
system performance.
3. Supports IDE Bus Master operation allows multi-tasking during disk drives transfer which increase CPU efficiency, then the
CPU is free to process task during IDE data transfer through PCI bus interface to/from system memory.
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On-board AC97 Sound
AK77 Plus / AK77 Pro uses the AD 1885 AC97 CODEC chip. This on-board audio includes a complete audio recording and
playback system.
Six USB Connectors
Provides three ports, six USB connectors for USB interface devices, such as mouse, keyboard, modem, scanner, etc. The onboard
USB Host controller is fully compliant with USB UHCI 1.1 specification that can fully compatible with low power mode and wake-up
specification.
1MHz Stepping Frequency Adjustment
Provides “1MHz Stepping Frequency Adjustment” function in the BIOS. This magic function allows you adjust CPU FSB frequency
from 100~248 by 1MHz stepping, and lets your system can get maximum performance.
Watch Dog Timer
Includes AOpen “Watch Dog Timer” function that can auto-reset system in 4.8 seconds when you fail to system overclocking.
Die-Hard BIOS with external controller (Upgrade Optional)
The Die-Hard BIOS technology is a very effective hardware protection method that doesn’t involve any software or BIOS coding.
Hence, it is 100% virus free.
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Dr. LED (Upgrade Optional)
The Dr. LED has 8 LEDs on AK77 Plus / AK77 Pro, which can easily show what kind of problem you may encounter.
Power Management/Plug and Play
The AK77 Plus / AK77 Pro supports the power management function that confirms to the power-saving standards of the U.S.
Environmental Protection Agency (EPA) Energy Star program. It also offers Plug-and-Play
configuration problems, thus making the system much more user-friendly.
, which helps saving users from
Hardware Monitoring Management
Supports CPU or system fans status, temperature and voltage monitoring and alert, through the on-board hardware monitor module
and Aopen Hardware Monitoring Utility
.
Enhanced ACPI
Fully implement the ACPI standard for Windows® 95/98/ME/NT/2000 series compatibility, and supports Soft-Off, STR (Suspend to
RAM, S3), STD (Suspend to Disk, S4), WOM (Wake On Modem), WOL (Wake On LAN) features.
Super Multi-I/O
The AK77 Plus / AK77 Pro provides two high-speed UART compatible serial ports and one parallel port with EPP and ECP
capabilities. UART2 can also be directed from COM2 to the Infrared Module for the wireless connections.
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QQuuiicckk IInnssttaallllaattiioonn PPrroocceedduurree
This page gives you a quick procedure on how to install your system. Follow each step accordingly.
1.
Installing CPU and Fan
2.
Installing System Memory (DIMM)
3.
Connecting Front Panel Cable
4.
Connecting IDE and Floppy Cable
5.
Connecting ATX Power Cable
6.
Connecting Back Panel Cable
7.
Power-on and Load BIOS Setup Default
8.
Setting CPU Frequency
9.
Reboot
10.
Installing Operating System (such as Windows 98)
11.
Installing Driver and Utility
15
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(
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AAKK7777 PPlluuss // AAKK7777 PPrroo OOnnlliinnee MMaannuuaall
CD-IN Connecto
Onboard AC97 CODEC
Die Hard BIOS with 100% Virus
Protection (Optional)
JP30 Die Hard BIOS
Select Jumpe
Green: AUX-IN Connecto
Red: Modem-IN Connecto
CNR Expansion Slot
32-bit PCI Expansion Slot x5
JP14 CMOS Data Clear Jumpe
(PCI 5 supports slave mode
PCI card only)
rd
2nd & 3
USB Port
Connecto
Dr. LED Connecto
(Upgrade Optional)
WOM (Wake ON Modem)
WOL (Wake ON LAN)
Chassis Fan Connector
with H/W Monitoring
Front Audio Connecto
Front Panel Connecto
PROMISE® FastTrak 100™
Lite IDE RAID Controller
System & RAM Power
Chassis Intrusion Sensor
Connecto
Connecto
IrDA Connecto
AK77 Plus Onl
Indicate LED
Connector
Motherboard Map
16
PC99 Colored Back Panel
Resettable Fuse
Keyboard/Mouse
Select Jumper
Wake-u
CPU Fan Connector with
H/W Monitoring
UX Fan Connecto
GP 4x Expansion Slot
462-pin CPU Socket with
Voltage and Frequency
uto-Detection that supports
® ® ®
MD Athlon and Duron
600MHz~1.2GHz+ CPU
®
VIA Apollo KT266
Chipset with Fansink
TX Power Connector
184-pin DDR SDRAM Slot x3
support maximum up to 3GB
JP21 FSB Select Jumper
TA/33/66/100 IDE
Connector x2
TA/100 IDE RAID
Connector x2 (AK77 Plus
Only)
FDD Connector
r
AAKK7777 PPlluuss // AAKK7777 PPrroo OOnnlliinnee MMaannuuaall
BBlloocckk DDiiaaggrraamm
Socket 462
AMD
Athl on/Duron
CPU
PC1600 /PC210 0 DDR
SDRAM Up to 3GB
DDR SDRAM Socket x3
66/100 /133MHz
System Bus
AGP Bus
DDR V-Link
Host Nort h 552
AGP 4X Slot
VT8366
BGA
USB connec tor x6
Floppy Disk Drive x2
PCI Bus
1stUSB Port
2ndUSB Port
3rdUSB Por t
32-bit PCI Slot x5
Promis e
FastTrak
100 IDE
RAID
Controller
ATA
33/66100
Primary
Channel
Secondary
Channel
Primary
Channel
Secondary
Channel
VT8233
V-Link Client
South 376
BGA
Supports ATA100 IDE RAID
0 and RAID 1 Solution
(AK77 Plus Only)
AC’97 Link
Audio CODEC
Modem CODEC
CNR Slot
2MBit Flash EEPROM
Parallel Port
Serial Port x2
IDE Drive x4
IDE Drive x4
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AAKK7777 PPlluuss // AAKK7777 PPrroo OOnnlliinnee MMaannuuaall
HHaarrddwwaarree IInnssttaallllaattiioonn
This chapter describes jumpers, connectors and hardware devices of this motherboard.
Note: Electrostatic discharge (ESD) can damage your processor, disk drives, expansion boards,
and other components. Always observe the following precautions before you install a system
component.
1. Do not remove a component from its protective packaging until you are ready to install it.
2. Wear a wrist ground strap and attach it to a metal part of the system unit before handling a
component. If a wrist strap is not available, maintain contact with the system unit throughout
any procedures requiring ESD protection.
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AAKK7777 PPlluuss // AAKK7777 PPrroo OOnnlliinnee MMaannuuaall
CClleeaarr CCMMOOSS DDaattaa
You can clear CMOS to restore system default setting. To clear the CMOS, follow the procedures below.
1. Turn off the system and unplug the AC power.
2. Remove ATX power cable from connector PWR2.
3. Locate JP14 and short pins 2-3 for a few seconds.
4. Return JP14 to its normal setting by shorting pins 1 & pin2.
5. Connect ATX power cable back to connector PWR2.
Pin 1
1
Normal Operation
(default)
1
Clear CMOS
Tip: When should I Clear CMOS?
1. Boot fail because of overclocking…
2. Forget password…
3. Troubleshooting…
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CCPPUU IInnssttaallllaattiioonn
This motherboard supports AMD® Athlon and Duron Socket 462 series CPU. Be careful of CPU orientation when you plug it into
CPU socket.
1. Pull up the CPU socket lever and
up to 90-degree angle.
2. Locate Pin 1 in the socket and look for a black dot or cut edge on the
CPU upper interface. Match Pin 1 and cut edge, then insert the CPU into
the socket.
CPU socket
Lever
Note: This picture is for example only, it may not exactly be the same motherboard.
CPU pin 1
and cut edge
Black dot
and cut edge
20
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AAKK7777 PPlluuss // AAKK7777 PPrroo OOnnlliinnee MMaannuuaall
3. Press down the CPU socket lever and finish
CPU installation.
Note: This picture is for example only, it may not exactly be the same motherboard.
CPU cut edge
Note: If you do not match the CPU
socket Pin 1 and CPU cut edge well, it
ma
damage the CPU.
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AAKK7777 PPlluuss // AAKK7777 PPrroo OOnnlliinnee MMaannuuaall
JJPP2211 FFSSBB//PPCCII CClloocckk RRaattiioo
This jumper is used to specify the relationship of PCI and FSB clock. Generally speaking, if you are not overclockers, we
recommend you to set it to the default setting. Additionally, this motherboard also provides “1MHz Stepping Adjustment” feature
for overclockers to adjust CPU FSB frequency via BIOS setup program. Based on the CPU type, the adjustment range has two
levels: 100~129 (FSB=100, such as Athlon 800), 130~248 (FSB=133, such as Athlon 1000) MHz for your choosing. You may also
choose a specific FSB frequency ranging from 100~117 (say, 105, 110, 115 for example) and 120~156 with reference to a
frequency table in BIOS setup program. If you fix the CPU FSB frequency by JP21, the “1MHz Stepping Adjustment” range will be
changed and following your JP21 setting.
-
SW1 CPU Ratio
Select Switch
+
1
2
3
4
1 2 3
FSB=100
CPU Ratio SW1-1 SW1-2 SW1-3 SW1-4
5
5.5
6
6.5
7
7.5
8
8.5
9
9.5
10
10.5
11
11.5
12
12.5
CPU Default 0 0 0 0
－－＋－
＋－＋－
－＋＋－
＋＋＋－
－－－＋
＋－－＋
－＋－＋
＋＋－＋
－－＋＋
＋－＋＋
－＋＋＋
＋＋＋＋
－－－－
＋－－－
－＋－－
＋＋－－
FSB=133
(Default)
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AAKK7777 PPlluuss // AAKK7777 PPrroo OOnnlliinnee MMaannuuaall
CCPPUU JJuummppeerr--lleessss DDeessiiggnn
CPU VID signal and SMbus clock generator provide CPU voltage auto-detection and allows the user to set the CPU frequency
through the BIOS setup
designs are eliminated. There will be no worry of wrong CPU voltage detection.
CPU VID signal
, therefore no jumpers or switches are used. The disadvantages of the Pentium based jumper-less
AMD
Socket A CPU
Power Regulator
(Automatically generates CPU voltage)
CPU voltage
Clock
Generator
CPU Freq. Ratio
BIOS
Controlled
Circuit
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FFuullll--rraannggee AAddjjuussttaabbllee CCPPUU CCoorree VVoollttaaggee
This function is dedicated to overclockers, AOpen works together with Fairchild to develop a special chip FM3540 that supports
Adjustable CPU Core Voltage from 1.1V to 1.85 by 0.05 stepping. But this motherboard can also automatically detect CPU VID
signal and generates proper CPU core voltage.
BIOS Setup > Frequency/Voltage Control > CPU Voltage Setting
Warning: Higher CPU core voltage may be
able to increase CPU speed for overclocking,
but you may damage the CPU or reduce the
CPU lifecycle.
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AAKK7777 PPlluuss // AAKK7777 PPrroo OOnnlliinnee MMaannuuaall
SSeettttiinngg CCPPUU FFrreeqquueennccy
This motherboard is CPU jumper-less design, you can set CPU frequency through the BIOS setup, and no jumpers or switches are
needed.
BIOS Setup > Frequency/Voltage Control > CPU Speed Setting
CPU Ratio
CPU FSB
(By BIOS Table)
CPU FSB
(By manual Adjustment)
From 5.5x to 12.5x step 0.5x
100, 102, 105, 108, 110, 113, 115, 117, 120, 122, 124, 133, 136,
138, 140, 142, 144, 147, 152, 154, and 156MHz.
FSB=100, 100~129 by 1MHz stepping adjustment technology
FSB=133, 130~248 by 1MHz stepping adjustment technology
Home
y
Warning: VIA® Apollo KT266 chipset supports 133MHz
FSB (with performance reaches maximum 266MHz EV6
system bus) and 66MHz AGP clock, higher clock setting
may cause serious system damage.
Tip: If your system hangs or fails to boot because of
overclocking, simply use <Home> key to restore the
default setting (433MHz) or you can wait the AOpen
“Watch Dog Timer” reset the system after five seconds
and system will auto-detect hardware again.
25 26
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SSuuppppoorrtteedd CCPPUU FFrreeqquueennccyy
Core Frequency = CPU Bus Clock * CPU Ratio
PCI Clock = CPU Bus Clock / Clock Ratio
AGP Clock = PCI Clock x 2
EV6 Bus Speed = CPU external bus clock x 2
CPU CPU Core Frequency EV6 Bus Clock Ratio
Athlon 800 800MHz 200MHz 8.0x
Athlon 850 850MHz 200MHz 8.5x
Athlon 900 900MHz 200MHz 9.0x
Athlon 950 950MHz 200MHz 9.5x
Athlon 1G 1GHz 200MHz 10.0x
Athlon 1.1G 1.1GHz 200MHz 11.0x
Athlon 1.2G 1.2GHz 200MHz 12.0x
Athlon 1.3G 1.3GHz 200MHz 13.0x
Athlon 1.4G 1.4GHz 200MHz 14.0x
Athlon 1G 1GHz 266MHz 7.5x
Athlon 1.13G 1.13GHz 266MHz 8.5x
Athlon 1.2G 1.2GHz 266MHz 9.0x
Athlon 1.33G 1.33GHz 266MHz 10.0x
Athlon 1.4G 1.4GHz 266MHz 10.5x
AthlonXP 1500+ 1.3GHz 266MHz 10.0x
AthlonXP 1600+ 1.4GHz 266MHz 10.5x
AthlonXP 1700+ 1.46GHz 266MHz 11.0x
AthlonXP 1800+ 1.53GHz 266MHz 11.5x
AthlonXP 1900+ 1.6GHz 266MHz 12.0x
Duron 800 800MHz 200MHz 8.0x
Duron 850 850MHz 200MHz 8.5x
Duron 900 900MHz 200MHz 9.0x
Duron 950 950MHz 200MHz 9.5x
Duron 1G 1GHz 200MHz 10.0x
Duron 1.1G 1.1GHz 200MHz 11.0x
Note: This motherboard support
CPU auto-detection function.
Hence, you don’t need to setup
the CPU frequency manually.
AAKK7777 PPlluuss // AAKK7777 PPrroo OOnnlliinnee MMaannuuaall
AAOOppeenn ““WWaattcchh DDoogg TTiimmeerr””
With this motherboard, AOpen provides a very special, useful feature for overclockers. When you power-on the system, the BIOS
will check last system POST
FSB
frequency by user’s setting that stored in the BIOS. If system failed in BIOS POST, the “Watch Dog Timer” will reset the
system to reboot in five seconds. Then, BIOS will detect the CPU’s default frequency and POST again. With this special feature,
you can easily overclock your system to get higher system performance without removing the cover of system housing, and be able
to set the jumper to clear CMOS data when your system hanged.
AOpen
Watch Dog
Timer
status. If it succeeded, the BIOS will enable “Watch Dog Timer” function immediately, and set the CPU
Enable/Disable Signal
from BIOS
Countdown about
5 seconds if fails
in POST
Reset Signal
Clock Generator
BIOS
CPU ID Signal
CPU
27
AAKK7777 PPlluuss // AAKK7777 PPrroo OOnnlliinnee MMaannuuaall
CCPPUU aanndd HHoouussiinngg FFaann CCoonnnneeccttoorr ((wwiitthh HH//WW MMoonniittoorriinngg))
Plug in the CPU fan cable to the 3-pin CPU FAN connector. If you have chassis fan, you can also plug it on System Fan or AUX
Fan (without H/W monitoring) connector.
Fan2 Connector
GND
+12V
SENSOR
Fan3 Connector
CPU Fan Connector
Note: Some CPU fans do not have
sensor pin, so that cannot support fan
monitoring.
GND
+12V
SENSOR
28
AAKK7777 PPlluuss // AAKK7777 PPrroo OOnnlliinnee MMaannuuaall
SSDDRRAAMM SSoocckkeett
The DDR SDRAM interface allows zero wait state bursting between the SDRAM and the data buffers at 100 or 133MHz. The three
184-pin sockets, six banks of DDR SDRAM can be composed of an arbitrary mixture of 1M/2M/4M/8M/16M/32M/64MxN SDRAM
with maximum up to 3GB.
Warning: The AK77 Plus / AK77 Pro
support DDR SDRAM, please do not
install the SDRAM on the DDR SDRAM
sockets. Otherwise, it will cause serious
damage on memory sockets or SDRAM
module.
DDR
SDRAM
29
AAKK7777 PPlluuss // AAKK7777 PPrroo OOnnlliinnee MMaannuuaall
HHooww ttoo IInnssttaallll MMeemmoorryy MMoodduulleess
Please follow the procedure as shown below to finish memory installation.
1. Make sure the DIMM module’s pin face down and match the socket’s size as depicted below.
2. Insert the module straight down to the DIMM slot with both hands and press down firmly until the DIMM module is securely in
place.
3. Repeat step 2 to finish additional DIMM modules installation.
Pin 1
Ta b
Key
52 pins 40 pins
Note: The tabs of the DIMM slot will
close-up to hold the DIMM in place
when the DIMM touches the slot’s
bottom.
Pin 1
30
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