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ATX motherboard in black with silver heatsinks and four DDR4 slots

GIGABYTE

GIGABYTE B660 GAMING X AX DDR4 Intel motherboard

SKU CH-APXF-GGMPE

An LGA 1700 ATX board for 12th and 13th Gen Intel CPUs with DDR4 memory, triple M.2 slots, PCIe 4.0, USB 3.2 Gen2 Type-C, 2.5GbE LAN and WiFi 6E

  • CPU Socket TypeLGA 1700
  • CPU TypeSupports 13th / 12th Gen Intel Core, Pentium Gold, Celeron P
  • ChipsetIntel B660
  • Onboard Video ChipsetSupported only by CPU with integrated graphic
  • Number of Memory Slots4x288pin (DDR4)
  • Memory StandardDDR4 4400(OC) / 4300(OC) /4266(OC) / 4133(OC) / 4000(OC) / 3
  • Supports 12th and 13th Gen Intel Core processors on LGA 1700 socket
  • Dual-channel DDR4 memory up to 128 GB across four 288-pin slots
  • 8+1+1 phase hybrid digital VRM with solid-pin 8-pin CPU power connector
  • Triple M.2 slots with PCIe 4.0 x4 support and dedicated thermal guards
  • 5 GbE LAN, Wi-Fi 6E 802.11ax and Bluetooth 5.2 for fast wireless connectivity

Socket and chipset

The GIGABYTE B660 GAMING X AX DDR4 is an ATX motherboard built around the Intel B660 chipset and LGA 1700 socket. It accepts 12th and 13th Generation Intel Core, Pentium Gold and Celeron processors. Four 288-pin slots support dual-channel DDR4 up to 128 GB with a long list of validated speeds from 2133 to 4400 MT/s.

Power and thermal behaviour

An 8+1+1 phase hybrid digital VRM with premium chokes and capacitors feeds the CPU through a solid 8-pin connector. Fully covered MOSFET heatsinks and a dedicated M.2 Thermal Guard spread heat during extended workloads, helping the power delivery and the PCIe 4.0 M.2 slots sustain performance without throttling.

Compatibility checks

Verify that your chassis fits an ATX board and that the power supply provides an 8-pin CPU connector. The primary PCIe 4.0 x16 slot takes a graphics card; two additional slots run at PCIe 3.0 x1. Onboard video works only with a processor that includes integrated graphics. Two M.2 connectors accept 2260, 2280 or 22110 modules.

Highlights

  • Supports 12th and 13th Gen Intel Core processors on LGA 1700 socket
  • Dual-channel DDR4 memory up to 128 GB across four 288-pin slots
  • 8+1+1 phase hybrid digital VRM with solid-pin 8-pin CPU power connector
  • Triple M.2 slots with PCIe 4.0 x4 support and dedicated thermal guards
  • 5 GbE LAN, Wi-Fi 6E 802.11ax and Bluetooth 5.2 for fast wireless connectivity

Specifications

BrandGIGABYTE
ModelB660 GAMING X AX DDR4
CPU Socket TypeLGA 1700
CPU TypeSupports 13th / 12th Gen Intel Core, Pentium Gold, Celeron Processors
ChipsetIntel B660
Onboard Video ChipsetSupported only by CPU with integrated graphic
Number of Memory Slots4x288pin (DDR4)
Memory StandardDDR4 4400(OC) / 4300(OC) /4266(OC) / 4133(OC) / 4000(OC) / 3866(OC) / 3800(OC) / 3733(OC) / 3666(OC) / 3600(OC) / 3466(OC) / 3400(OC) / 3333(OC) / 3300(OC) / 3200 / 3000 / 2933 / 2666 / 2400 / 2133
Maximum Memory Supported128GB
Channel SupportedDual Channel
PCI Express 4.0 x161 x PCI Express 4.0 x16
* For optimum performance, if only one PCI Express graphics card is to be installed, be sure to install it in the PCIEX16 slot.
PCI Express 3.0 x162 x PCI Express 3.0 x16
* Running at x1 (PCIEX1_1, PCIEX1_2).
Serial ATA (SATA)4 x SATA 6Gb/s
M.2CPU:
1 x M.2 connector (Socket 3, M key, type 2260/2280/22110 PCIe 4.0 x4/x2 SSD support) (M2A_CPU)
Chipset:
1 x M.2 connector (Socket 3, M key, type 2260/2280/22110 PCIe 4.0 x4/x2 SSD support) (M2P_SB)
1 x M.2 connector (Socket 3, M key, type 2260/2280/22110 PCIe 3.0 x4/x2 SSD support) (M2M_SB)
Intel Optane ReadyYes
* System acceleration with Intel Optane Memory can only be enabled on the M.2 connectors supported by the Chipset.
SATA RAID0/1/5/10
Audio Channels7.1 Channels
Max LAN Speed2.5Gbps
Wireless LANAMD Wi-Fi 6E RZ608 (MT7921K)
WIFI a/b/g/n/ac/ax
BluetoothBluetooth 5.2
Back I/O Ports1 x USB 3.2 Gen 2 Type-A port (red)
2 x USB 3.2 Gen 1 ports
5 x USB 2.0/1.1 ports
1 x DisplayPort
1 x HDMI 2.0 port
1 x RJ-45 port
6 x audio jacks
Onboard USB1 x USB Type-C header, with USB 3.2 Gen 2 support
1 x USB 3.2 Gen 1 header
2 x USB 2.0/1.1 headers
Other Connectors1 x CPU fan header
1 x water cooling CPU fan header
3 x system fan headers
1 x system fan/water cooling pump header
2 x addressable LED strip headers
2 x RGB LED strip headers
1 x front panel header
1 x front panel audio header
1 x Trusted Platform Module header (For the GC-TPM2.0 SPI/GC-TPM2.0 SPI 2.0 module only)
1 x serial port header
1 x Q-Flash Plus button
1 x reset button
1 x reset jumper
1 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.
Windows 11Supported
Form FactorATX
LED LightingRGB
Dimensions (W x L)12.0" x 9.6"
Power Pin1 x 24-pin ATX main power connector
1 x 8-pin ATX 12V power connector

Questions about this item

How hot do the 8+1+1 phase VRM and fully covered MOSFET heatsinks get under all-day load?

The 8+1+1 hybrid digital VRM uses premium chokes and capacitors with an 8-pin solid-pin CPU power connector. Fully covered MOSFET heatsinks and an M.2 Thermal Guard spread heat across the board surface for sustained operation.

Which DDR4 modules and CPU cooler mounting hardware must I already own to install this board?

Four 288-pin DDR4 DIMMs up to 128 GB total are supported at speeds from 2133 to 4400 MT/s. The LGA 1700 socket requires a cooler with 1700 mounting holes or an adapter kit.

Will my PCIe 3.0 x16 graphics card and SATA SSDs work at full speed in the PCIe 3.0 x1 slots and four SATA 6 Gb/s ports?

The two PCIe 3.0 x16 slots run electrically at x1 (PCIEX1_1, PCIEX1_2), so a PCIe 3.0 x16 card operates at x1 bandwidth. Four SATA 6 Gb/s ports provide full 6 Gb/s throughput for SATA SSDs and hard drives.

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