When you installing AGP card, please make sure the follow
ing notice is fully understood and practiced. If your AGP
card has "AGP 4X notch"(show below), please make sure
your AGP card is AGP 4X (1.5V).
Do not use AGP 2X card (3.3V) in this motherboard. It will
burn and damage the motherboard due to Intel® 845 chipset
can't support AGP 2X(3.3V).
Example 1: Diamond Vipper V770 golden finger is compatible with 2X/
4X mode AGP slot. It can be switched between AGP 2X (3.3V) or 4X
(1.5V) mode by adjusting the jumper. The factory default for this card is
2X(3.3V). If you install this card in GA-8IRX (or any AGP 4X only)
motherboards without switching the jumper to 4X mode (1.5V), it will
burn the motherboard.
Example 2: ATi Rage 128 Pro (Power Color) & SiS 305 golden finger is
compatible with 2X/4X mode AGP slot, but it supports 2X(3.3V) only. If
you install this card in GA-8IRX (or any AGP 4X only) motherboards, it
will burn the motherboard.
Note : Although Gigabyte's AG32S graphics card is based on ATi Rage
128 Pro chip, the design of AG32S is compliance with AGP 4X (1.5V)
specification. Therefore, AG32S will work fine with Intel 845 / 850 based
motherboards.
Before you install PCI cards, please remove the Dual BIOS
label from PCI slots if there is one.
?The author assumes no responsibility for any errors or omissions
that may appear in this document nor does the author make a
commitment to update the information contained herein.
?Third-party brands and names are the property of their respective
owners.
?Please do not remove any labels on motherboard, thismay void the
warranty of this motherboard.
?Due to rapid change in technology, some of the specifications might
be out of date before publication of this booklet.
Ausschlager Weg 41, 1F, 20537 Hamburg, Germany
( descript ion of t he apparatus, system, inst allat ion to which it ref ers)
(ref erence t o t he specif ication under which conf ormit y is declared)
in accordance wit h 89/336 EEC-EMC Directive
? EN 55011Lim its and m et hods of m easurem ent
? EN 55013
? EN 55014Lim its and m et hods of m easurem ent
? EN 55015Lim its and m et hods of m easurem ent
? EN 55020
? EN 55022Lim its and m et hods of m easurem ent
? DIN VDE 0855
? part 10
? part 12
? CE marking
? EN 60065
? EN 60335
of radio disturbance characteristics of
indust rial,scientific and medical (ISM
high f requency equipment
Lim its and m et hods of m easurem ent
of radio disturbance characteristics of
broadcast receivers and associat ed
equipm ent
of radio disturbance characteristics of
household elect rical appliances,
port able tools and sim ilar elect rical
apparat us
of radio disturbance characteristics of
f luorescent lam ps and lum inaries
Im munity from radio int erference of
broadcast receivers and associat ed
equipm ent
of radio disturbance characteristics of
inf ormat ion t echnology equipm ent
Cabled dist ribution system s; Equipment
f or receiving and/or distribution from
sound and t elevision signals
The manufacturer also declares the conformity of above mentioned product
with the actual required safety standards in accordance with LV D 73/ 23 EEC
Saf ety requirem ent s f or m ains operat ed
elect ronic and related apparatus f or
household and sim ilar general use
Saf ety of household and sim ilar
elect rical appliances
(S tamp )
Declaration of Conformity
We, Manuf acturer/Importer
(f ull address)
G.B.T. Technology Trä ding GMbH
declare t hat t he product
Mother Board
GA-8IRX
is in conf ormity with
? EN 61000-3-2*
? EN 60555-2
? EN 61000-3-3*Dist urbances in supply system s cause
? EN 60555-3
? EN 50081-1Generic em ission st andard Part 1:
? EN 50082-1
? EN 55081-2
? EN 55082-2
? ENV 55104
? EN50091-2
(EC conf ormit y m arking)
? EN 60950
? EN 50091-1
Manufacturer/Importer
Dat e : Oct. 11, 2001
Dist urbances in supply system s cause
by household appliances and sim ilar
elect rical equipment “ Harm onics”
by household appliances and sim ilar
elect rical equipment “ Volt age f luctuations”
Residual com mercial and light indust ry
Generic im munit y st andard Part 1:
Residual com mercial and light indust ry
Generic em ission st andard Part 2:
Indust rial environment
Generic em ission st andard Part 2:
Indust rial environment
lm munit y requirements f or household
appliances t ools and similar apparat us
EMC requirem ents for uninterrupt ible
power syst ems (UPS)
Signat ure:
Nam e:
Ti mmy H u an g
Tim m y Huang
DE CLARATION OF CONF ORMITY
Pe r FCC Part 2 Sect ion 2.1077(a)
Responsible Party
Name:
h ereby declares that the product
Con forms to the follo wing specifications:
FCC Part 15, Su b part B, Sectio n 15.107(a) an d Section 15.109
(a),Clas s B Digi tal Device
Supplementary Information:
Th is device co mplies wi th part 15 of the FCC Rules . Operati on is
s ubject to t he follo wing two conditi ons: (1) This device may not
cau se harmful and (2) this device must accept any inference received,
in cluding that may cause undesired operation.
Repres entative Person’s Name:
Address:
Phon e/Fax No:
Product Name:
Model Number:
Sig nature:
G.B.T. INC.
17358 Railroad Street
City of Industry, CA 91 748
(818) 854-9338/ (818) 854-9339
Motherboard
G A-8IRX
ERIC LU
Eric Lu
Date:
Oc t. 11,2001
Acronyms
AcronymsMeaning
ACPIAdvanced Configuration and Power Interface
APMAdvanced Power Management
AGPAccelerated Graphics P ort
AMRAudio Modem Riser
ACRAdvanced Communications Riser
BBSBIOS Boot S pecification
BIOSBasic Input / Output System
CPUCentral Processing Unit
CMOSComplementary Metal Oxide S em iconductor
CRIMMContinuity RIMM
CNRComm unicat ion and N etworking Riser
DMADirect Memory Access
DMIDesktop Management Interface
DIMMDual Inline Memory Module
DRMDual Retention Mechanism
DRAMDynamic Random Access Memory
DDRDouble Data Rate
ECPExtended C apabilities P ort
ESCDExtended System Configuration Data
ECCError Checking and Correcting
EMCElectrom agnetic C ompatibility
EPPEnhanced Parallel P ort
ESDElectrostatic Discharge
FDDFloppy Disk Device
FSBFront Side Bus
HDDHard Disk Device
IDEIntegrated Dual Channel Enhanced
IRQInterrupt Request
I/OInput / Output
IOAPICInput Output Advanced P rogramm able Input Controller
ISAIndustry Standard Architecture
to be continued......
AcronymsMeaning
LANLocal Area Network
LBALogical Block Addressing
LEDLight Emitting Diode
MHzMegahertz
MIDIMusical Interface Digital Interface
MTHMemory Translator Hub
MPTMemory Protocol Translator
NICNetw ork Int erface C ard
OSOperating System
OEMOriginal Equipment M anuf acturer
PACPCI A.G.P. Controller
POSTPower-On Self Test
PCIPeripheral Component Interconnect
RIMMRambus in-line Memory M odule
SCISpecial Circumstance Instructions
SECCSingle Edge Contact Cartridge
SRAMStatic Random Access Memory
SMPSymmetric Multi-Processing
SMISystem M anagem ent Interrupt
USBUniversal Serial Bus
VIDVoltage ID
?
Technical Support/RMA Sheet
Customer/Country:Company:Phone No.:
Contact Person:E-mail Add. :
Model name/Lot Num ber:PCB revision:
BIOS version:O.S./A.S.:
HardwareMfs.Model nameSize:Driver/Utility:
Configuration
CPU
Memory
Brand
Video Card
Audio Card
HDD
CD-ROM /
DVD-ROM
Modem
Network
AMR / CNR
Keyboard
Mouse
Power supply
Other Device
Problem Description:
?
When you installing AGP card, please make sure the follow
ing notice is fully understood and practiced. If your AGP
card has "AGP 4X notch"(show below), please make sure
your AGP card is AGP 4X (1.5V).
Do not use AGP 2X card (3.3V) in this motherboard. It will
burn and damage the motherboard due to Intel® 845 chipset
can't support AGP 2X(3.3V).
Example 1: Diamond Vipper V770 golden finger is compatible with 2X/
4X mode AGP slot. It can be switched between AGP 2X (3.3V) or 4X
(1.5V) mode by adjusting the jumper. The factory default for this card is
2X(3.3V). If you install this card in GA-8IRX (or any AGP 4X only)
motherboards without switching the jumper to 4X mode (1.5V), it will
burn the motherboard.
Example 2: ATi Rage 128 Pro (Power Color) & SiS 305 golden finger is
compatible with 2X/4X mode AGP slot, but it supports 2X(3.3V) only. If
you install this card in GA-8IRX (or any AGP 4X only) motherboards, it
will burn the motherboard.
Note : Although Gigabyte's AG32S graphics card is based on ATi Rage
128 Pro chip, the design of AG32S is compliance with AGP 4X (1.5V)
specification. Therefore, AG32S will work fine with Intel 845 / 850 based
motherboards.
Before you install PCI cards, please remove the Dual BIOS
label from PCI slots if there is one.
?The author assumes no responsibility for any errors or omissions
that may appear in this document nor does the author make a
commitment to update the information contained herein.
?Third-party brands and names are the property of their respective
owners.
?Please do not remove any labels on motherboard, thismay void the
warranty of this motherboard.
?Due to rapid change in technology, some of the specifications might
be out of date before publication of this booklet.
Ausschlager Weg 41, 1F, 20537 Hamburg, Germany
( descript ion of t he apparatus, system, inst allat ion to which it ref ers)
(ref erence t o t he specif ication under which conf ormit y is declared)
in accordance wit h 89/336 EEC-EMC Directive
? EN 55011Lim its and m et hods of m easurem ent
? EN 55013
? EN 55014Lim its and m et hods of m easurem ent
? EN 55015Lim its and m et hods of m easurem ent
? EN 55020
? EN 55022Lim its and m et hods of m easurem ent
? DIN VDE 0855
? part 10
? part 12
? CE marking
? EN 60065
? EN 60335
of radio disturbance characteristics of
indust rial,scientific and medical (ISM
high f requency equipment
Lim its and m et hods of m easurem ent
of radio disturbance characteristics of
broadcast receivers and associat ed
equipm ent
of radio disturbance characteristics of
household elect rical appliances,
port able tools and sim ilar elect rical
apparat us
of radio disturbance characteristics of
f luorescent lam ps and lum inaries
Im munity from radio int erference of
broadcast receivers and associat ed
equipm ent
of radio disturbance characteristics of
inf ormat ion t echnology equipm ent
Cabled dist ribution system s; Equipment
f or receiving and/or distribution from
sound and t elevision signals
The manufacturer also declares the conformity of above mentioned product
with the actual required safety standards in accordance with LV D 73/ 23 EEC
Saf ety requirem ent s f or m ains operat ed
elect ronic and related apparatus f or
household and sim ilar general use
Saf ety of household and sim ilar
elect rical appliances
(S tamp )
Declaration of Conformity
We, Manuf acturer/Importer
(f ull address)
G.B.T. Technology Trä ding GMbH
declare t hat t he product
Mother Board
GA-8IRX
is in conf ormity with
? EN 61000-3-2*
? EN 60555-2
? EN 61000-3-3*Dist urbances in supply system s cause
? EN 60555-3
? EN 50081-1Generic em ission st andard Part 1:
? EN 50082-1
? EN 55081-2
? EN 55082-2
? ENV 55104
? EN50091-2
(EC conf ormit y m arking)
? EN 60950
? EN 50091-1
Manufacturer/Importer
Dat e : Oct. 11, 2001
Dist urbances in supply system s cause
by household appliances and sim ilar
elect rical equipment “ Harm onics”
by household appliances and sim ilar
elect rical equipment “ Volt age f luctuations”
Residual com mercial and light indust ry
Generic im munit y st andard Part 1:
Residual com mercial and light indust ry
Generic em ission st andard Part 2:
Indust rial environment
Generic em ission st andard Part 2:
Indust rial environment
lm munit y requirements f or household
appliances t ools and similar apparat us
EMC requirem ents for uninterrupt ible
power syst ems (UPS)
Signat ure:
Nam e:
Ti mmy H u an g
Tim m y Huang
DE CLARATION OF CONF ORMITY
Pe r FCC Part 2 Sect ion 2.1077(a)
Responsible Party
Name:
h ereby declares that the product
Con forms to the follo wing specifications:
FCC Part 15, Su b part B, Sectio n 15.107(a) an d Section 15.109
(a),Clas s B Digi tal Device
Supplementary Information:
Th is device co mplies wi th part 15 of the FCC Rules . Operati on is
s ubject to t he follo wing two conditi ons: (1) This device may not
cau se harmful and (2) this device must accept any inference received,
in cluding that may cause undesired operation.
Repres entative Person’s Name:
Address:
Phon e/Fax No:
Product Name:
Model Number:
Sig nature:
G.B.T. INC.
17358 Railroad Street
City of Industry, CA 91 748
(818) 854-9338/ (818) 854-9339
Motherboard
G A-8IRX
ERIC LU
Eric Lu
Date:
Oc t. 11,2001
Acronyms
AcronymsMeaning
ACPIAdvanced Configuration and Power Interface
APMAdvanced Power Management
AGPAccelerated Graphics P ort
AMRAudio Modem Riser
ACRAdvanced Communications Riser
BBSBIOS Boot S pecification
BIOSBasic Input / Output System
CPUCentral Processing Unit
CMOSComplementary Metal Oxide S em iconductor
CRIMMContinuity RIMM
CNRComm unicat ion and N etworking Riser
DMADirect Memory Access
DMIDesktop Management Interface
DIMMDual Inline Memory Module
DRMDual Retention Mechanism
DRAMDynamic Random Access Memory
DDRDouble Data Rate
ECPExtended C apabilities P ort
ESCDExtended System Configuration Data
ECCError Checking and Correcting
EMCElectrom agnetic C ompatibility
EPPEnhanced Parallel P ort
ESDElectrostatic Discharge
FDDFloppy Disk Device
FSBFront Side Bus
HDDHard Disk Device
IDEIntegrated Dual Channel Enhanced
IRQInterrupt Request
I/OInput / Output
IOAPICInput Output Advanced P rogramm able Input Controller
Computer motherboards and expansion cards contain very delicate Integrated Circuit (IC) chips. To
protect them against damage from static electricity, y ou should follow some precautions whenever
you work on your computer.
1.Unplug your computer when working on the inside.
2.Use a grounded wrist strap before handling computer components. If y ou do not hav e
one, touch both of y our hands to a safely grounded object or to a metal object, such as
the power supply case.
3.Hold components by the edges and try not touch the IC chips, leads or connectors, or
other components.
4.Place components on a grounded antistatic pad or on the bag that came with the
components whenev er the components are separated from the sy stem.
5.Ensure that the ATX power supply is switched off before you plug in or remov e the ATX
ower connector on the motherboard.
English
Installing the motherboard to the chassis…
If the motherboard has mounting holes, but they don’t line up with the holes on the base and
there are no slots to attach the spacers, do not become alarmed y ou can still attach the spacers to
the mounting holes. Just cut the bottom portion of the spacers (the spacer may be a little hard to
cut off, so be careful of your hands). In this way y ou can still attach the motherboard to the base
without worrying about short circuits. Sometimes you may need to use the plastic springs to isolate
the screw from the motherboard PCB surface, because the circuit wire may be near by the hole. Be
careful, don’t let the screw contact any printed circuit write or parts on the PC B tha t are near the
fix ing hole, otherwise it may damage the board or cause board malfunctioning.
- 3 -
Introduction
Chapter 1 Introduction
Features Summary
English
Form Factor? 30.5cm x 22.8cm ATX size form factor, 4 layers PCB.
CPU? Socket 478 for Intel® Micro FC-PGA2 Pentium® 4 processor
Chipset? Chipset 82845 HOST/AGP/Controller
Memory? 3 184-pin DDR DIMM sockets
I/O Control? IT8712
Slots? 1 CNR(Communication and Networking Riser) Slot
On-Board IDE? An IDE controller on the Intel 82801BA PCI chipset
On-Board Peripherals? 1 Floppy port supports 2 FDD with 360K, 720K,1.2M, 1.44M
Hardware Monitor? CPU/Power/System Fan Revolution detect
?? Support Intel ® Pentium ® 4 (Northwood, 0.13um) processor
? Intel Pentium®4 400M Hz FSB
? 2nd cache depend on CPU
? 82801BA(ICH2) I/O Controller Hub
? Supports PC1600 DDR or PC2100 DDR DIMM
? Supports up to 2GB DRAM (Max)
? Supports only 2.5V DDR DIMM
? Supports 64bit ECC type DRAM integrity mode
? 1 AGP slot 4X (1.5V) device support
? 6 PCI slot supports 33MHz & PCI 2.2 compliant
provides IDE HDD/CD-ROM with PIO, Bus Master (Ultra