Gigabyte Motherboard GA-B250-D3A (rev.1.0) User's Manual
Summary
Designed for PC builders, this comprehensive manual provides step-by-step instructions for utilizing the GA-B250-D3A motherboard. It guides users through the entire setup process, covering everything from initial hardware installation—including CPU and memory mounting—to advanced BIOS configuration via the M.I.T. section. The guide also details component connections, essential driver installation, and general system maintenance, ensuring optimal performance for your new computer build.
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GA-B250-D3A
User's Manual Rev. 1001
For more product details, please visit GIGABYTE's website.
To reduce the impacts on global warming, the packaging materials of this product are recyclable and reusable. GIGABYTE works with you to protect the environment.
Page Summary Contents For Gigabyte Motherboard GA-B250-D3A (rev.1.0) User's Manual
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GA-B250-D3A User's Manual Rev. 1001 For more product details, please visit GIGABYTE's website. To reduce the impacts on global warming, the packaging materials of this product are recyclable and reusa...
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Motherboard GA-B250-D3A Motherboard GA-B250-D3A Mar. 31, 2017 Mar. 31, 2017 Copyright © 2017 GIGA-BYTE TECHNOLOGY CO., LTD. All rights reserved. The trademarks mentioned in this manual are legally reg...
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Table of Contents GA-B250-D3A Motherboard Layout .................................................................................4 Chapter 1 Hardware Installation .......................................
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GA-B250-D3A Motherboard Layout DV D- SU KB_MS_USB SYS_FAN1 ATX_12V_2X4 LGA1151 R_USB30_1 USB_LAN DD R4 _4 CPU_FAN DD R4 _2 AUDIO DD R4 _3 DD R4 _1 PCIEX1_1 GA-B250-D3A F_ US B3 Realtek® SA TA Gb E LAN...
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Chapter 1 Hardware Installation 1-1 Installation Precautions The motherboard contains numerous delicate electronic circuits and components which can become damaged as a result of electrostatic dischar...
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1-2 Product Specifications CPU Support for 7th and 6th Generation Intel® Core™ i7 processors/ Intel® Core™ i5 processors/Intel® Core™ i3 processors/ Intel® Pentium® processors/Intel® Celeron® processo...
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USB Chipset: - 6 x USB 3.1 Gen 1 ports (4 ports on the back panel, 2 ports available through the internal USB header) - 6 x USB 2.0/1.1 ports (2 ports on the back panel, 4 ports available through the ...
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Unique Features Support for APP Center * Available applications in APP Center may vary by motherboard model. Supported functions of each application may also vary depending on motherboard specificatio...
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1-3 Installing the CPU Read the following guidelines before you begin to install the CPU: Make sure that the motherboard supports the CPU. (Go to GIGABYTE's website for the latest CPU support list.) A...
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The four memory sockets are divided into two channels and each channel has two memory sockets as following: Channel A: DDR4_2, DDR4_4 Channel B: DDR4_1, DDR4_3 Dual Channel Memory Configurations Table...
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USB 3.1 Gen 1 Port The USB 3.1 Gen 1 port supports the USB 3.1 Gen 1 specification and is compatible to the USB 2.0 specification. Use this port for USB devices. RJ-45 LAN Port The Gigabit Ethernet LA...
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1-7 Internal Connectors 1) ATX_12V_2X4 9) SPDIF_O 2) ATX 10) F_USB30 3) CPU_FAN 11) F_USB1/F_USB2 4) SYS_FAN1/2/3 12) COM 5) SATA3 0/1/2/3/4/5 13) CLR_CMOS 6) M2A_32G 14) BAT 7) F_PANEL 15) CPU/VGA/DR...
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DEBUG PORT DEBUG PORT 1/2) ATX_12V_2X4/ATX (2x4 12V Power Connector and 2x12 Main Power Connector) DEBUG DEBUG With the use of the power connector, the power supply can supply enough stable power to a...
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DEBUG DEBUG PORT PORT DEBUG DEBUG PORT PORT F_USB30 F_ U F_ F_ 5) SATA3 0/1/2/3/4/5 (SATA 6Gb/s Connectors) The SATA connectors conform to SATA 6Gb/s standard and are compatible with SATA 3Gb/s and SA...
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DEBUG PORT 7) F_PANEL (Front Panel Header) Connect the power switch, reset switch, speaker, chassis intrusion switch/sensor and system status indicator on the chassis to this header according to the p...
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9) SPDIF_O (S/PDIF Out Header) This header supports digital S/PDIF Out and connects a S/PDIF digital audio cable (provided by expansion cards) for digital audio output from your motherboard to certain...
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12) COM (Serial Port Header) The COM header can provide one serial port via an optional COM port cable. For purchasing the optional COM port cable, please contact the local dealer. Pin No. Definition ...
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F_USB30 F_ U F_ F_ F_USB3 F 15) CPU/VGA/DRAM/BOOT (Status LEDs) The status LEDs show whether the CPU, graphics card, memory, and operating system are working properly after system power-on. If the CP...
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Chapter 2 BIOS Setup BIOS (Basic Input and Output System) records hardware parameters of the system in the CMOS on the motherboard. Its major functions include conducting the Power-On Self-Test (POST)...
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Whether the system will work stably with the overclock/overvoltage settings you made is dependent on your overall system configurations. Incorrectly doing overclock/overvoltage may result in damage to...
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Uncore Ratio Allows you to set the CPU Uncore ratio. The adjustable range is dependent on the CPU being used. Uncore Frequency Displays the current CPU Uncore frequency. CPU Flex Ratio Override Enable...
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C8 State Support (Note 1) Allows you to determine whether to let the CPU enter C8 mode in system halt state. When enabled, the CPU core frequency and voltage will be reduced during system halt state t...
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Advanced Memory Settings Extreme Memory Profile (X.M.P.) (Note ), System Memory Multiplier, Memory Odd Ratio (100/133 or 200/266), Memory Frequency(MHz) The settings above are synchronous to those und...
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Advanced Voltage Settings Advanced Power Settings CPU Vcore Loadline Calibration Allows you to configure Load-Line Calibration for the CPU Vcore voltage. Selecting a higher level keeps the CPU Vcore v...
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Fan Speed Control Allows you to determine whether to enable the fan speed control function and adjust the fan speed. Normal Allows the fan to run at different speeds according to the temperature. You ...
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2-3 System This section provides information on your motherboard model and BIOS version. You can also select the default language used by the BIOS and manually set the system time. Access Level Displa...
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2-4 BIOS Bootup Num Lock State Enables or disables Numlock feature on the numeric keypad of the keyboard after the POST. (Default: On) Security Option Specifies whether a password is required every ti...
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SATA Support All Sata Devices All SATA devices are functional in the operating system and during the POST. (Default) Last Boot HDD Only Except for the previous boot drive, all SATA devices are disable...
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Storage Boot Option Control Allows you to select whether to enable the UEFI or legacy option ROM for the storage device controller. Do not launch Disables option ROM. Legacy Enables legacy option ROM ...
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2-5 Peripherals Initial Display Output Specifies the first initiation of the monitor display from the installed PCI Express graphics card or the onboard graphics. IGFX Sets the onboard graphics as the...
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Super IO Configuration Serial Port Enables or disables the onboard serial port. (Default: Enabled) Intel(R) Bios Guard Technology Enables or disables the Intel® BIOS Guard feature, which protects the ...
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SATA And RST Configuration SATA Controller(s) Enables or disables the integrated SATA controllers. (Default: Enabled) SATA Mode Selection Specifies the operating mode of the integrated SATA controller...
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2-6 Chipset VT-d (Note) Enables or disables Intel® Virtualization Technology for Directed I/O. (Default: Enabled) Internal Graphics Enables or disables the onboard graphics function. (Default: Auto) D...
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2-7 Power Platform Power Management Enables or disables the Active State Power Management function (ASPM). (Default: Disabled) PEG ASPM Allows you to configure the ASPM mode for the device connected t...
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Power On Password Set the password when Power On By Keyboard is set to Password. Press <Enter> on this item and set a password with up to 5 characters and then press <Enter> to accept. To ...
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2-8 Save & Exit Save & Exit Setup Press <Enter> on this item and select Yes. This saves the changes to the CMOS and exits the BIOS Setup program. Select No or press <Esc> to return...
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Chapter 3 Appendix Drivers Installation Before installing the drivers, first install the operating system. (The following instructions use Windows 10 as the example operating system.) After installing...
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Regulatory Statements Regulatory Notices This document must not be copied without our written permission, and the contents there of must not be imparted to a third party nor be used for any unauthoriz...
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FCC Notice (U.S.A. Only) This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide rea...
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Contact Us GIGA-BYTE TECHNOLOGY CO., LTD. Address: No.6, Baoqiang Rd., Xindian Dist., New Taipei City 231, Taiwan TEL: +886-2-8912-4000, FAX: +886-2-8912-4005 Tech. and Non-Tech. Support (Sales/Market...
Manual Details
| Brand | GIGABYTE |
|---|---|
| Pages | 40 |
| File Size | 11.23 MB |
| Published | May 28, 2026 |
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Frequently Asked Questions
What should I do before installing the motherboard?
Be aware that the motherboard is delicate and can be damaged by electrostatic discharge (ESD). Carefully read the manual and follow all installation precautions.
Where can I find technical information on the revision number?
The revision number, labeled as "REV: X.X," is printed directly on the motherboard itself for easy checking before updates or lookups.
How do I connect peripherals to the board?
The manual outlines sections for back panel connectors (1-6) and internal connectors (1-7), detailing various ports like USB, audio, and SATA.
Are there environmental guidelines regarding this product?
Yes, GIGABYTE notes that the packaging materials are recyclable and reusable to help reduce impacts on global warming.