GIGABYTE B660M DS3H AX DDR4 Intel Motherboard
MPN GIGABYTE-B660M-DS3H · Brand Gigabyte · mATX
The Gigabyte B660M DS3H AX DDR4 is a Micro ATX Intel B660 motherboard for LGA1700 12th Gen CPUs, featuring dual PCIe 4.0 M.2 slots with Thermal Guard, 2.5GbE LAN, USB 3.2 Gen 2 Type-C, and RGB Fusion 2.0
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Overview
The Gigabyte B660M DS3H AX DDR4 is a Micro ATX motherboard built on Intel's B660 Express Chipset, designed to support 12th Generation Intel Core i5, i7, and i9 processors via the LGA1700 socket. Its compact 24.4 cm x 24.4 cm footprint makes it an efficient choice for space-conscious builds without sacrificing connectivity or performance. Power delivery is handled by a 6+2+1 phase hybrid digital VRM with low RDS MOSFETs, solid capacitors, and an 8-pin solid-pin CPU power connector accompanied by a MOS heatsink — helping to maintain stable voltage under sustained loads at elevated CPU frequencies. Storage options are generous for a board in this tier. Two M.2 connectors (Socket 3, M-key, supporting 2260 and 2280 form factors) each run at PCIe 4.0 x4, and both slots are equipped with Gigabyte's M.2 Thermal Guard to help manage heat generated by high-speed NVMe drives. Four SATA 6 Gb/s ports provide additional storage capacity, and the board supports RAID 0, 1, 5, and 10 configurations. Networking is provided by a Realtek 2.5GbE LAN chip capable of 2.5 Gbps, 1 Gbps, and 100 Mbps operation. For audio, a Realtek High Definition Audio CODEC delivers 2/4/5.1/7.1-channel output, supported by high-quality audio capacitors and an audio noise guard. The rear I/O panel includes one USB 3.2 Gen 2 Type-C port, three USB 3.2 Gen 1 Type-A ports, two USB 2.0 ports, one HDMI 2.1 port (up to 4096×2160 @ 60 Hz), two DisplayPort 1.2 outputs (up to 4096×2304 @ 60 Hz each), one D-Sub port (up to 1920×1200 @ 60 Hz), one PS/2 keyboard/mouse port, one RJ-45 port, and three audio jacks — supporting up to four simultaneous displays via the integrated Intel graphics processor. RGB FUSION 2.0 enables addressable LED (ARGB) and standard RGB strip control via the dedicated onboard headers. Smart Fan 6 provides fan speed control with multiple temperature sensors and a FAN STOP feature across four fan headers. Q-Flash Plus allows BIOS updates from a USB drive without installing the CPU, memory, or graphics card. Verified Specifications: - Socket: LGA1700 - Chipset: Intel B660 Express - Form Factor: Micro ATX, 24.4 cm x 24.4 cm - Memory: 4x DDR4 DIMM, dual-channel, up to 128 GB (32 GB per DIMM); standard speeds 2133–3200 MHz; XMP and O.C. support up to DDR4-5333 - Storage: 2x M.2 PCIe 4.0 x4 (with Thermal Guard), 4x SATA 6 Gb/s, RAID 0/1/5/10 - Expansion: 1x PCIe 4.0 x16, 2x PCIe 3.0 x1 - USB (rear): 1x USB 3.2 Gen 2 Type-C, 3x USB 3.2 Gen 1, 2x USB 2.0 - LAN: Realtek 2.5GbE - Audio: Realtek HD Audio CODEC, 7.1-channel - BIOS: AMI UEFI, 256 Mbit flash, Q-Flash Plus - Warranty: 3 Years - OS Support: Windows 11 64-bit, Windows 10 64-bit
Datasheet
| Warranty | 3 Years |
|---|---|
| Form Factor | mATX |
| Chipset | Intel® B660 Express Chipset |
| CPU Type | LGA1700 socket: Support for 12th Generation Intel® CoreTM i9 processors/Intel® CoreTM i7 processors/Intel® CoreTM i5 processorsL3 cache varies with CPU |
| Lan | Realtek® 2.5GbE LAN chip (2.5 Gbps/1 Gbps/100 Mbps) |
| USB | Chipset:1 x USB Type-C® port on the back panel, with USB 3.2 Gen 2 support5 x USB 3.2 Gen 1 ports (3 ports on the back panel, 2 ports available through the internal USB header)2 x USB 2.0/1.1 ports on the back panelChipset+2 USB 2.0 Hubs:4 x USB 2.0/1.1 ports available through the internal USB headers |
| Bios | 1 x 256 Mbit flashUse of licensed AMI UEFI BIOSPnP 1.0a, DMI 2.7, WfM 2.0, SM BIOS 2.7, ACPI 5.0 |
| Audio | Playback Device to change the default setting first."}">Realtek® Audio CODECHigh Definition Audio2/4/5.1/7.1-channel* To configure 7.1-channel audio, you need to open the audio software and select Device advanced settings > Playback Device to change the default setting first |
| Memory | Support for DDR4 5333(O.C.)/ DDR4 5133(O.C.)/DDR4 5000(O.C.)/4933(O.C.)/4800(O.C.)/ 4700(O.C.)/ 4600(O.C.)/ 4500(O.C.)/ 4400(O.C.)/ 4300(O.C.)/4266(O.C.) / 4133(O.C.) / 4000(O.C.) / 3866(O.C.) / 3800(O.C.) / 3733(O.C.) / 3666(O.C.) / 3600(O.C.) / 3466(O.C.) / 3400(O.C.) / 3333(O.C.) / 3300(O.C.) / 3200/3000/2933/2666/2400/2133 MHz memory modules4 x DDR DIMM sockets supporting up to 128 GB (32 GB single DIMM capacity) of system memoryDual channel memory architectureSupport for ECC Un-buffered DIMM 1Rx8/2Rx8 memory modules (operate in non-ECC mode)Support for non-ECC Un-buffered DIMM 1Rx8/2Rx8/1Rx16 memory modulesSupport for Extreme Memory Profile (XMP) memory modules(Please refer "Memory Support List" for more information.) |
| H/W Monitoring | Voltage detectionTemperature detectionFan speed detectionFan fail warningFan speed control* Whether the fan speed control function is supported will depend on the cooler you install |
| I/O Controller | iTE® I/O Controller Chip |
| Expansion Slots | 1 x PCI Express x16 slot, running at x16(The PCIEX16 slot conforms to PCI Express 4.0 standard.)2 x PCI Express x1 slots(The PCIEX1 slots conform to PCI Express 3.0 standard.) |
| 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 specifications.@BIOSEasyTuneFast BootGame BoostON/OFF ChargeRGB FusionSmart BackupSystem Information ViewerSupport for Q-Flash PlusSupport for Q-FlashSupport for Xpress Install |
| Bundled Software | Norton® Internet Security (OEM version)Realtek® Gaming LAN Bandwidth Control Utility |
| Onboard Graphics | Integrated Graphics Processor-Intel® HD Graphics support:1 x D-Sub port, supporting a maximum resolution of 1920×1200@60 Hz1 x HDMI port, supporting a maximum resolution of 4096×2160@60 Hz* Support for HDMI 2.1 version and HDCP 2.3.** Support native HDMI 2.1 TMDS compatible ports.1 x DisplayPort, supporting a maximum resolution of 4096×2304@60 Hz* Support for DisplayPort 1.2 version and HDCP 2.31 x DisplayPort, supporting a maximum resolution of 4096×2304@60 Hz* Support for DisplayPort 1.2 version.(Graphics specifications may vary depending on CPU support.)Support for up to 4 displays at the same time |
| Operating System | Support for Windows 11 64-bitSupport for Windows 10 64-bit |
| Storage Interface | CPU: 1 x M.2 connector (Socket 3, M key, type 2260/2280 PCIe 4.0 x4/x2 SSD support) (M2A_CPU) Chipset: 1 x M.2 connector (Socket 3, M key, type 2260/2280 PCIe 4.0 x4/x2 SSD support) (M2P_SB) 4 x SATA 6Gb/s connectors Support for RAID 0, RAID 1, RAID 5, and RAID 10 Intel® Optane™ Memory Ready * System acceleration with Intel® Optane™ Memory can only be enabled on the M.2 connector supported by the Chipset |
| Back Panel Connectors | 2 x USB 2.0/1.1 ports1 x PS/2 keyboard/mouse port1 x D-Sub port1 x HDMI port2 x DisplayPorts3 x USB 3.2 Gen 1 ports1 x USB Type-C® port, with USB 3.2 Gen 2 support1 x RJ-45 port3 x audio jacks |
| Internal I/O Connectors | 1 x 24-pin ATX main power connector1 x 8-pin ATX 12V power connector1 x CPU fan header3 x system fan headers1 x addressable LED strip header1 x RGB LED strip header2 x M.2 Socket 3 connectors4 x SATA 6Gb/s connectors1 x front panel header1 x front panel audio header1 x USB 3.2 Gen 1 header2 x USB 2.0/1.1 headers1 x Trusted Platform Module header (For the GC-TPM2.0 SPI/GC-TPM2.0 SPI 2.0 module only)1 x serial port header1 x parallel port header1 x S/PDIF Out header1 x Q-Flash Plus button1 x reset button1 x reset jumper1 x Clear CMOS jumper＊All fan headers are subject to support AIO_Pump, Pump and high performance fan with the capability of delivering up to 2A/12V @ 24W |
