Gigabyte Gag1975xc Manual

							BIOS Setup - 41 -
EnglishLimit CPUID Max. to 3
EnabledLimit CPUID Maximum value to 3 when use older OS like NT4.
DisabledDisable CPUID Limit for windows XP.(Default value)
No-Execute Memory Protect (Note)
Enabled Enable No-Execute Memory Protect function.(Default value)
DisabledDisable No-Execute Memory Protect function.
CPU Enhanced Halt (C1E) (Note)
Enabled Enable CPU Enhanced Halt (C1E) function.(Default value)
DisabledDisable CPU Enhanced Halt (C1E) function.
CPU Thermal Monitor 2 (TM2) (Note)
Enabled Enable CPU Thermal Monitor 2 (TM2) function.(Default value)
DisabledDisable CPU Thermal Monitor 2 (TM2) function.
CPU EIST Function (Note)
Enabled Enable CPU EIST function.(Default value)
DisabledDisable CPU EIST function.
Delay For HDD (Secs)
Set delay HDD time from 0~15(secs).
Init Display First
This feature allows you to select the first initiation of the monitor display from which card when you
install a PCI card and a PCI Express VGA card on the motherboard.
PCI Set Init Display First to PCI VGA card.
PEG Set Init Display First to PCI Express VGA card (PCIE_16_1 slot). (Default value)
PEG2 Set Init Display First to PCI Express VGA card (PCIE_16_2 slot).
DRAM Data Integrity Mode
ECC Enable Memory Error Checking and Correction feature when all installed DIMMs
are 72bits width.
Non-ECCSet DRAM Data Integrity Mode to Non-ECC. (Default value) 
						

							GA-G1975X-C Motherboard - 42 -
English
2-3 Integrated Peripherals
On-Chip Primary PCI IDE
Enabled Enable onboard 1st channel IDE port. (Default value)
Disabled Disable onboard 1st channel IDE port.
SATA RAID / AHCI Mode
RAIDSet the onboard SATA controller to RAID mode.
AHCISet the onboard SATA controller to AHCI mode. Advanced Host Controller
Interface (AHCI) is an interface specification that allows the storage driver to
enable advanced Serial ATA features such as Native Command Queuing
and hot plug. For more details about AHCI, please visit Intels website.
Disabled Set the onboard SATA controller to IDE mode.(Default value)
On-Chip SATA Mode
Disabled Disable this function.AutoBIOS will detect automatically. (Default value)
Combined Set On-Chip SATA mode to Combined, you can use up to 4 HDDs on the
motherboard; 2 for SATA and the other for PATA IDE.
EnhancedSet On-Chip SATA mode to Enhanced, the motherboard allows up to 6 HDDs
to use.
Non-CombinedSet On-Chip SATA mode to Non-Combined, SATA will be simulated to PATA
mode.
PATA IDE Set to
Ch.1 Master/SlaveSet PATA IDE to Ch. 1 Master/Slave.
Ch.0 Master/SlaveSet PATA IDE to Ch. 0 Master/Slave.(Default value)
SATA Port 0/2 Set to
This value will be automatically made by the setting On-Chip SATA Mode and PATA IDE Set
to. If PATA IDE were set to Ch. 1 Master/Slave, this function will auto set to Ch. 0 Master/Slave.
SATA Port 1/3 Set to
This value will be automatically made by the setting On-Chip SATA Mode and PATA IDE Set
to. If PATA IDE were set to Ch. 0 Master/Slave, this function will auto set to Ch. 1 Master/Slave.
CMOS Setup Utility-Copyright (C) 1984-2006 Award Software
Integrated Peripherals
On-Chip Primary PCI IDE [Enabled]
SATA RAID/AHCI Mode[Disabled]
On-Chip SATA Mode[Auto]
x PATA IDE Set to Ch.0 Master/Slave
SATA Port 0/2 Set to Ch.2 Master/Slave
SATA Port 1/3 Set to Ch.3 Master/Slave
USB Controller[Enabled]
USB 2.0 Controller[Enabled]
USB Keyboard Support[Disabled]
USB Mouse Support[Disabled]
Legacy USB storage detect[Enabled]
Onboard H/W Sound[Enabled]
Onboard H/W 1394[Enabled]
Onboard H/W GigaATA [Enabled]
Onboard H/W LAN [Enabled]
OnBoard LAN Boot ROM[Disabled]
Onboard Serial Port 1 [3F8/IRQ4]
i-Lock[Enabled]
KLJI: Move Enter: Select+/-/PU/PD: ValueF10: SaveESC: ExitF1: General Help
F3: Language        F5: Previous Values         F6: Fail-Safe Defaults      F7: Optimized Defaults
Item Help
Menu Level`
If a hard disk
controller card is
used, set at Disabled.
[Enabled]
Enable on-chip IDE
Port.
[Disabled]
Disable on-chip IDE
Port. 
						

							BIOS Setup - 43 -
EnglishUSB Controller
Enabled Enable USB controller. (Default value)
DisabledDisable USB controller.
USB 2.0 Controller
Disable this function if you are not using onboard USB 2.0 feature.
Enabled Enable USB 2.0 controller. (Default value)
DisabledDisable USB 2.0 controller.
USB Keyboard Support
EnabledEnable USB keyboard support.
DisabledDisable USB keyboard support. (Default value)
USB Mouse Support
EnabledEnable USB mouse support.
DisabledDisable USB mouse support. (Default value)
Legacy USB storage detect
Enabled Enable USB storage detect function. (Default value)
Disabled Disable this function.
Onboard H/W Sound
Enabled Enable onboard sound. (Default value)
Disabled Disable this function.
Onboard H/W 1394
Enabled Enable onboard IEEE 1394 function. (Default value)
Disabled Disable this function.
Onboard H/W GigaATA
Enabled Enable onboard H/W GigaATA function. (Default value)
Disabled Disable this function.
Onboard H/W LAN
Enabled Enable onboard H/W LAN function. (Default value)
Disabled Disable this function.
OnBoard LAN Boot ROM
This function decide whether to invoke the boot ROM of the onboard LAN chip.
Enabled Enable this function.
Disabled Disable this function. (Default value)
Onboard Serial Port 1
AutoBIOS will automatically setup the port 1 address.
3F8/IRQ4Enable onboard Serial port 1 and address is 3F8/IRQ4. (Default value)
2F8/IRQ3 Enable onboard Serial port 1 and address is 2F8/IRQ3.
3E8/IRQ4 Enable onboard Serial port 1 and address is 3E8/IRQ4.
2E8/IRQ3 Enable onboard Serial port 1 and address is 2E8/IRQ3.
Disabled Disable onboard Serial port 1.
i-Lock
Enabled Enable the i-Lock function. (Default value)
Disabled Disable the i-Lock function. 
						

							GA-G1975X-C Motherboard - 44 -
English
2-4 Power Management Setup
ACPI Suspend Type
S1(POS) Set ACPI suspend type to S1/POS(Power On Suspend). (Default value)
S3(STR) Set ACPI suspend type to S3/STR(Suspend To RAM).
Soft-Off by PWR-BTTN
Instant-Off Press power button then Power off instantly. (Default value)
Delay 4 Sec. Press power button 4 seconds to Power off. Enter suspend if button is pressed less
than 4 seconds.
PME Event Wake Up
Disabled Disable this function.
EnabledEnable PME Event Wake up. (Default value)
Power On by Ring
Disabled Disable Power on by Ring function.
EnabledEnable Power on by Ring function. (Default value)
Resume by Alarm
You can set Resume by Alarm item to enabled and key in Date/Time to power on system.
Disabled Disable this function. (Default value)
EnabledEnable alarm function to POWER ON system.
If Resume by Alarm is Enabled.
Date (of Month) Alarm : Everyday, 1~31
Time (hh: mm: ss) Alarm : (0~23) : (0~59) : (0~59)
Power On By Mouse
Disabled Disabled this function. (Default value)
Double Click Double click on PS/2 mouse left button to power on the system.
CMOS Setup Utility-Copyright (C) 1984-2006 Award Software
Power Management Setup
ACPI Suspend Type [S1(POS)]
x USB Device Wake-Up From S3Enabled
Soft-Off by PWR-BTTN [Instant-Off]
PME Event Wake Up[Enabled]
Power On by Ring[Enabled]
Resume by Alarm[Disabled]
x Date (of Month) AlarmEveryday
x Time  (hh:mm:ss)  Alarm 0 : 0 : 0
Power On By Mouse [Disabled]
Power On By Keyboard[Disabled]
x KB Power ON PasswordEnter
AC BACK Function[Soft-Off]
KLJI: Move Enter: Select+/-/PU/PD: ValueF10: SaveESC: ExitF1: General Help
F3: Language        F5: Previous Values         F6: Fail-Safe Defaults      F7: Optimized Defaults
Item Help
Menu Level`
[S1]
Set suspend type to
Power On Suspend under
ACPI OS
[S3]
Set suspend type to
Suspend to RAM under
ACPI OS 
						

							BIOS Setup - 45 -
English
2-5 PnP/PCI Configurations
Resources Controlled By
AutoAssign PnP resource (I/O address, IRQ & DMA channels) for Plug and Play
compatible devices automatically (Default value)
ManualAssign resource manually.
IRQ Resources (IRQ3,4,5,7,9,10,11,12,14,15)
PCI Device This IRQ assigns for PCI device. (Default value)
ReservedReserved this IRQ for other device.
PCI Latency Timer (CLK)
Set PCI Latency Timer to 32, 64, 128. (Default value: 32)
CMOS Setup Utility-Copyright (C) 1984-2006 Award Software
PnP/PCI Configurations
Resources Controlled By[Auto]
x IRQ ResourcesPress Enter
PCI Latency Timer(CLK)[32]
PCI 1 IRQ Assignment[Auto]
PCI 2 IRQ Assignment[Auto]
KLJI: Move Enter: Select+/-/PU/PD: ValueF10: SaveESC: ExitF1: General Help
F3: Language        F5: Previous Values         F6: Fail-Safe Defaults      F7: Optimized Defaults
Item Help
Menu Level`
Device(s) using this
INT:
Power On By Keyboard
Password Enter from 1 to 5 characters to set the Keyboard Power On Password.
Disabled Disabled this function. (Default value)
Keyboard 98 If your keyboard have POWER Key button, you can press the key to power on
the system.
KB Power ON Password
When Power On by Keyboard set at Password, you can set the password here.
Enter Input password (from 1 to 5 characters) and press Enter to set the Keyboard
Power On password.
AC BACK Function
Soft-Off When AC-power back to the system, the system will be in Off state.
(Default value)
Full-On When AC-power back to the system, the system always in On state.
Memory When AC-power back to the system, the system will return to the Last state
before AC-power off. 
						

							GA-G1975X-C Motherboard - 46 -
English
PCI 1 IRQ Assignment
AutoAuto assign IRQ to PCI 1. (Default value)
3,4,5,7,9,10,11,12,14,15 Set IRQ 3,4,5,7,9,10,11,12,14,15 to PCI 1.
PCI 2 IRQ Assignment
AutoAuto assign IRQ to PCI 2. (Default value)
3,4,5,7,9,10,11,12,14,15 Set IRQ 3,4,5,7,9,10,11,12,14,15 to PCI 2.
2-6 PC Health Status
Reset Case Open Status
Disabled Dont reset case open status. (Default value)
Enabled Clear case open status at next boot.
Case Opened
If the case is closed, Case Opened will show No. If the case has been opened, Case Opened
willshow Yes. If you want to reset Case Opened value, set Reset Case Open Status to
Enabled then save BIOS setup and restart your system.
Current Voltage(V) Vcore / DDRV  / +3.3V / +12V
Detect systems voltage status automatically.
Current CPU Temperature
Detect CPU temperature automatically.
Current CPU/POWER/SYSTEM FAN Speed (RPM)
Detect CPU/POWER/SYSTEM fan speed status automatically.
CMOS Setup Utility-Copyright (C) 1984-2006 Award Software
PC Health Status
Reset Case Open Status[Disabled]
Case Opened No
Vcore OK
DDRV OK
+3.3V OK
+12V OK
Current CPU Temperature 33
oC
Current CPU FAN Speed 1350 RPM
Current POWER FAN Speed 0       RPM
Current SYSTEM FAN Speed 0       RPM
CPU Warning Temperature[Disabled]
CPU FAN Fail Warning[Disabled]
POWER FAN Fail Warning [Disabled]
SYSTEM FAN Fail Warning[Disabled]
CPU Smart FAN Control[Enabled]
CPU Smart FAN Mode[Auto]
KLJI: Move Enter: Select+/-/PU/PD: ValueF10: SaveESC: ExitF1: General Help
F3: Language        F5: Previous Values         F6: Fail-Safe Defaults      F7: Optimized Defaults
Item Help
Menu Level` 
						

							BIOS Setup - 47 -
EnglishCPU Warning Temperature
60oC / 140oF Monitor CPU temperature at 60oC / 140oF.
70oC / 158oF Monitor CPU temperature at 70oC / 158oF.
80oC / 176oF Monitor CPU temperature at 80oC / 176oF.
90oC / 194oF Monitor CPU temperature at 90oC / 194oF.
Disabled Disable this function. (Default value)
CPU/POWER/SYSTEM FAN Fail Warning
Disabled Disable fan fail warning function. (Default value)
Enabled Enable fan fail warning function.
CPU Smart FAN Control
Disabled Disable this function.
Enabled When this function is enabled, CPU fan will run at different speed depending on
CPU temperature. Users can adjust the fan speed with Easy Tune based on
their requirements. (Default value)
CPU Smart FAN Mode
This option is available only when CPU Smart FAN Control is enabled.
AutoBIOS autodetects the type of CPU fan you installed and sets the optimal CPU
Smart FAN control mode for it. (Default value)
VoltageSet to Voltage when you use a CPU fan with a 3-pin fan power cable.
PWM Set to PWM when you use a CPU fan with a 4-pin fan power cable.
Note: In fact, the Voltage option can be used for CPU fans with 3-pin or 4-pin power cables.
However, some 4-pin CPU fan power cables are not designed following Intel 4-Wire fans PWM
control specifications. With such CPU fans, selecting PWM will not effectively reduce the fan
speed. 
						

							GA-G1975X-C Motherboard - 48 -
English
2-7 MB Intelligent Tweaker(M.I.T.)
C.A.M. (Note)
HighSet clock ratio for frequency-locked CPU to High. (Default value)
Low Set clock ratio for frequency-locked CPU to Low.
CPU Clock Ratio (Note)
This setup option will automatically assign by CPU detection.
The option will display Locked and read only if the CPU ratio is not changeable.Incorrect using these features may cause your system broken. For power end-user use only.
(Note) This item will show up when you install a processor that supports this function.
CMOS Setup Utility-Copyright (C) 1984-2006 Award Software
MB Intelligent Tweaker(M.I.T.)
C.A.M. (Note)[High]
CPU Clock Ratio (Note)[16X]
Robust Graphics Booster[Auto]
C.I.A. 2[Disabled]
CPU Host Clock Control[Disabled]
x CPU Host Frequency(Mhz) 200
x PCI Express Frequency(Mhz)Auto
x PCI Frequency(Mhz)Auto
System Memory Multiplier[Auto]
Memory Frequency (Mhz) 533
DIMM OverVoltage Control [Normal]
PCI-E OverVoltage Control[Normal]
FSB OverVoltage Control[Normal]
CPU Voltage Control[Normal]
Normal CPU Vcore1.3875V
CAS Latency Time[Auto]
DRAM RAS# to CAS# Delay[Auto]
DRAM RAS# Precharge[Auto]
Active to Precharge Delay [Auto]
KLJI: Move Enter: Select+/-/PU/PD: ValueF10: SaveESC: ExitF1: General Help
F3: Language        F5: Previous Values         F6: Fail-Safe Defaults      F7: Optimized Defaults
Item Help
Menu Level`
CPU Adjustable Multipli
er
Set Clock Ratio For
Frequency-locked CPU
CMOS Setup Utility-Copyright (C) 1984-2006 Award Software
MB Intelligent Tweaker(M.I.T.)
Refresh Mode Select[Auto]
M.I.B.2[Auto]
x Vendor\Brand Micron\Micron
x Component3YB11 Z9BQT
x Size512M
KLJI: Move Enter: Select+/-/PU/PD: ValueF10: SaveESC: ExitF1: General Help
F3: Language        F5: Previous Values         F6: Fail-Safe Defaults      F7: Optimized Defaults
Item Help
Menu Level`
CPU Adjustable Multipli
er
Set Clock Ratio For
Frequency-locked CPU 
						

							BIOS Setup - 49 -
EnglishRobust Graphics Booster
Select the options can enhance the VGA graphics card bandwidth to get higher performance.
AutoSet Robust Graphics Booster to Auto. (Default value)
Fast Set Robust Graphics Booster to Fast.
Turbo Set Robust Graphics Booster to Turbo.
C.I.A.2
C.I.A.2 (CPU Intelligent Accelerator 2) is designed to detect CPU loading during software program
executing, and automatically adjust CPU computing power to maximize system performance.
Disabled Disable this function. (Default value)
Cruise Set C.I.A.2 to Cruise. Automatically increase CPU frequency(5%,7%) by
CPU loading.
Sports Set C.I.A.2 to Sports. Automatically increase CPU frequency(7%,9%) by
CPU loading.
Racing Set C.I.A.2 to Racing. Automatically increase CPU frequency(9%,11%) by
CPU loading.
TurboSet C.I.A.2 to Turbo. Automatically increase CPU frequency(15,17%) by
CPU loading.
Full Thrust Set C.I.A.2 to Full Thrust. Automatically increase CPU frequency(17%,
19%) by CPU loading.
Warning: Stability is highly dependent on system components.
CPU Host Clock Control
DisabledDisable CPU Host Clock Control. (Default value)EnabledEnable CPU Host Clock Control.
CPU Host Frequency(Mhz)
100Mhz ~ 600Mhz Set CPU Host Clock from 100Mhz to 600Mhz.
The actual range depends on the CPU you install.
If you use an 800Mhz FSB processor, please set CPU Host Frequency to 200Mhz.
If you use a 1066Mhz FSB processor, please set CPU Host Frequency to 266Mhz.
PCI Express Frequency(Mhz)AutoSet PCI Express frequency automatically. (Default value)
90Mhz ~ 150Mhz Set PCI Express frequency from 90Mhz to 150Mhz.
PCI  Frequency(Mhz)AutoSet PCI frequency automatically. (Default value)
33.3Mhz ~ 37.5MhzSet PCI frequency from 33.3Mhz to 37.5Mhz.
System Memory Multiplier
Wrong frequency may make system cant boot, clear CMOS to overcome wrong frequency issue.
for FSB(Front Side Bus) frequency=1066MHz,
1.50Memory Frequency = Host clock x 1.50.
2.00Memory Frequency = Host clock x 2.00.
2.50Memory Frequency = Host clock x 2.50.
2.0+Memory Frequency = Host clock x 2.0+.
2.66Memory Frequency = Host clock x 2.66.
3.33Memory Frequency = Host clock x 3.33.
3.00Memory Frequency = Host clock x 3.00.
4.00Memory Frequency = Host clock x 4.00.
 
AutoSet Memory frequency by DRAM SPD data. (Default value) 
						

							GA-G1975X-C Motherboard - 50 -
English
for FSB(Front Side Bus) frequency=800MHz,
2.00Memory Frequency = Host clock x 2.00.
2.66Memory Frequency = Host clock x 2.66.
3.33Memory Frequency = Host clock x 3.33.
3.00Memory Frequency = Host clock x 3.00.
4.00Memory Frequency = Host clock x 4.00.
1.50Memory Frequency = Host clock x 1.50.
2.0-Memory Frequency = Host clock x 2.0-.
2.50Memory Frequency = Host clock x 2.50.
 AutoSet Memory frequency by DRAM SPD data. (Default value)
Memory Frequency (Mhz)
The values depend on CPU Host Frequency(Mhz) and System Memory Multiplier setting.
DIMM OverVoltage Control
NormalSupply DDRII voltage as DDRII required. (Default value)
+0.1V ~ +0.7V Increase DDRII voltage +0.1V ~ +0.7V.
PCI-E OverVoltage Control
NormalSupply PCI-E voltage as PCI-E required. (Default value)
+0.1V ~ +0.7VIncrease PCI-E voltage +0.1V ~ +0.7V.
FSB OverVoltage Control
NormalSupply FSB voltage as FSB required. (Default value)
+0.05V ~ +0.35V Set FSB OverVoltrage Control to +0.05V ~ +0.35V.
CPU Voltage Control
Supports adjustable CPU Vcore from 1.7500V to 1.0625V. (Default value: Normal)
Normal CPU Vcore
Display your CPUs normal voltage.
CAS Latency Time
This feature allows you to select the CAS latency Time, When any DDRII DIMM is installed.
5 Set CAS latency Time is 5.
4 Set CAS latency Time is 4.
3 Set CAS latency Time is 3.
6 Set CAS latency Time is 6.
AutoSet CAS latency Time automatically. (Default value)
DRAM RAS# to CAS# Delay
This feature allows you to set the delay time that from the DRAM RAS# active to CAS#.
2 Set DDRII RAM RAS# to CAS# delay 2 SCLKs.
3 Set DDRII RAM RAS# to CAS# delay 3 SCLKs.
4 Set DDRII RAM RAS# to CAS# delay 4 SCLKs.
5 Set DDRII RAM RAS# to CAS# delay 5 SCLKs.
6 Set DDRII RAM RAS# to CAS# delay 6 SCLKs.
AutoSet DDRII RAM RAS# to CAS# delay time automatically. (Default value)