Gigabyte GA-X58A-OC User Manual

Hardware Installation - 22 -
1-8 Onboard Buttons, Switches, and LEDs
Overclocking Buttons
The overclocking buttons allow users to overclock the CPU in real-time and at anytime (whether in BIOS,
DOS or Windows), including CPU Ratio, BCLK and even change BCLK stepping.
OC Gear Button:
Changes BCLK stepping to 1 MHz or
0.3 MHz.
CPU BCLK Down Button (FREQ_DW)
Lowers the CPU base clock.
4G Ready Button:
Automatically overclocks the CPU to 4GHz
on the next system boot up. Supported CPUs
include
Intel
®
Core i7 980X/990X Extreme
Edition and Core i7 930/940/950/960/970.
CPU BCLK Up Button (FREQ_UP)
Raises the CPU base clock.
1
DIP
1 2 3
CPU Ratio Down Button (RATIO_DW)
Lowers the CPU ratio.
CPU Ratio Up Button (RATIO_UP)
Raises the CPU ratio.
PWM Clock DIP Settings
DIP 1 DIP 2 DIP 3
400K OFF OFF OFF
600K ON OFF OFF
800K ON ON OFF
1000K ON ON ON
PWM Frequency Switch (SW1)
The PWM frequency switch allows users to overclock the PWM frequency for real-time adjustment. The PWM
frequency can be overclocked by 600K/800K/1000K (the default is 400K).
1
DIP
1 2 3
SW1
The 800K and 1000K options are for LN2 overclocking and extreme
overclocking only.
BIOS Switch and BIOS LED Indicators
The BIOS switch (SW4) allows users to easily select a different BIOS for boot up or overclocking, helping to
reduce BIOS failure during overclocking. The LED indicator (MBIOS_LED/BBIOS_LED) shows which BIOS is
active.
1
DIP
1 2 3
OFF: Main BIOS (Boot from the main BIOS)
ON: Backup BIOS (Boot from the backup BIOS)
SW4
BIOS Switch:
MBIOS_LED (The main BIOS is active)
BBIOS_LED (The backup BIOS is active)
BIOS LED Indicators:
1
DIP
1 2 3
• Before using the overclocking buttons, make sure to load the optimized defaults in BIOS Setup
to return the BIOS settings to factory defaults.
• Actual system performance may vary by system conguration when the 4G Ready button is
activated.
F_USB30
F_AUDIO(H) DB_PORT
F_PANEL(NH) F_PANEL
(H61M-D2)
TPM w/housing
Voltage measurement module(X58A-OC)
PCIe power connector (SATA)(X58A-OC)
DIP
1 2 3
DIP
1 2 3
DIP
1 2 3
DIP
123
1
1
1
1
BIOS Switcher (X58A-OC)
PWM Switch (X58A-OC)
F_USB30
F_AUDIO(H) DB_PORT
F_PANEL(NH) F_PANEL
(H61M-D2)
TPM w/housing
Voltage measurement module(X58A-OC)
PCIe power connector (SATA)(X58A-OC)
DIP
1 2 3
DIP
1 2 3
DIP
1 2 3
DIP
123
1
1
1
1
BIOS Switcher (X58A-OC)
PWM Switch (X58A-OC)

Gigabyte GA-X58A-OC Specifications

General

Brand	Gigabyte
Model	GA-X58A-OC
Category	Motherboard
Language	English