GIGABYTE B660M Gaming DDR4 Intel Motherboard
MPN GIGABYTE-B660M-GAMING-DDR4 · Brand Gigabyte · mATX
The Gigabyte B660M Gaming DDR4 is a Micro ATX LGA1700 motherboard featuring dual PCIe 4.0 M.2 slots, 2.5GbE LAN, a 6+2+1 phase hybrid digital VRM, and RGB Fusion 2.0 — built for 12th Gen Intel Core processors
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Overview
The Gigabyte B660M Gaming DDR4 is a Micro ATX motherboard built on the Intel B660 Express Chipset and designed for 12th Generation Intel Core, Pentium Gold, and Celeron processors using the LGA1700 socket. It offers a well-rounded feature set for gamers and home builders who want a compact, capable platform without moving up to a full ATX footprint. Power delivery centres on a 6+2+1 phase hybrid digital VRM with low RDS MOSFETs and solid capacitors, backed by an 8-pin ATX 12V CPU power connector and a dedicated MOS heatsink. This configuration supports stable operation across a wide range of 12th Gen Intel processors under sustained loads. Storage flexibility is a clear strength. Two M.2 connectors — one routed through the CPU and one through the chipset — both support PCIe 4.0 x4 NVMe SSDs in 2260 and 2280 form factors. Four SATA 6 Gb/s connectors round out storage, with support for RAID 0, 1, 5, and 10 configurations. Networking is handled by a Realtek 2.5GbE LAN chip capable of 2.5 Gbps, 1 Gbps, and 100 Mbps operation, accompanied by Realtek's Gaming LAN Bandwidth Control Utility. The rear I/O includes a USB 3.2 Gen 1 Type-C port, three USB 3.2 Gen 1 Type-A ports, two USB 2.0 ports, D-Sub, HDMI (up to 4096×2160 at 60 Hz), DisplayPort (up to 4096×2304 at 60 Hz), and three audio jacks driven by a Realtek HD Audio CODEC with 2/4/5.1/7.1-channel support. RGB Fusion 2.0 supports both addressable LED and standard RGB LED strip headers, and Smart Fan 6 provides up to six temperature/fan speed control points with PWM and DC fan modes, fan stop, and per-header over-current protection up to 24 W (12 V × 2 A). Q-Flash Plus allows BIOS updates without a CPU, memory, or GPU installed. Memory support covers DDR4 at standard speeds from 2133 MHz up to 5333 MHz via XMP, across two DIMM slots with a maximum capacity of 64 GB (32 GB per slot) in a dual-channel configuration. Key Specifications: - Socket: LGA1700 (12th Gen Intel Core, Pentium Gold, Celeron) - Chipset: Intel B660 Express - Form Factor: Micro ATX, 244 mm × 225 mm - Memory: 2 × DDR4 DIMM, up to 64 GB, DDR4-2133 to DDR4-5333 (O.C./XMP) - M.2: 2 × PCIe 4.0 x4 (2260/2280) - SATA: 4 × SATA 6 Gb/s (RAID 0/1/5/10) - LAN: Realtek 2.5GbE (2.5 Gbps/1 Gbps/100 Mbps) - Rear USB: 1 × USB 3.2 Gen 1 Type-C, 3 × USB 3.2 Gen 1 Type-A, 2 × USB 2.0 - Display: D-Sub, HDMI, DisplayPort - Audio: Realtek HD Audio, 7.1-channel - BIOS: AMI UEFI, Q-Flash Plus - Warranty: 3 Years - OS: 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, Pentium® Gold and Celeron® 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 1 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 | Realtek® Audio CODECHigh Definition Audio2/4/5.1/7.1-channel |
| 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 modules2 x DDR4 DIMM sockets supporting up to 64 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 |
| H/W Monitoring | Voltage detectionTemperature detectionFan speed detectionFan fail warningFan speed control |
| 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.)1 x PCI Express x1 slot(The PCIEX1 slot conforms 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 | 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 Hz1 x DisplayPort, supporting a maximum resolution of 4096×2304@60 Hz |
| 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 connectorsSupport for SATA RAID 0, RAID 1, RAID 5, and RAID 10Intel® Optane™ Memory Ready |
| Back Panel Connectors | 2 x USB 2.0/1.1 ports1 x PS/2 keyboard/mouse port1 x D-Sub port1 x HDMI port1 x DisplayPort3 x USB 3.2 Gen 1 ports1 x USB Type-C® port, with USB 3.2 Gen 1 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 S/PDIF Out header1 x Q-Flash Plus button1 x reset button1 x reset jumper1 x Clear CMOS jumper |




