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)...

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....

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)...

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....

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...

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...

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....

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...

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....

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...