Gigabyte

B860M Power

B860LGA1851Micro ATX

The Gigabyte B860M Power is a Micro ATX LGA1851 motherboard on the B860 chipset. It supports DDR5 memory up to 9,066 MT/s and 2 M.2 slots. Full specs, power delivery, and current prices are below.

Prices update regularly and may differ at the retailer. This page contains affiliate links.

Gigabyte B860M Power motherboard

MaxMyBuild scores

How we score →

How well the B860M Power is equipped for gaming and for productivity, scored 0–100 from its specs. Scores are fit-for-purpose: a capable board can top the gaming score without being the most expensive.

63/ 100Gaming

Weighs CPU power delivery, memory speed support, the GPU PCIe slot, Wi-Fi version, and M.2 storage — the things that actually matter for a gaming build.

CPU power45
RAM speed100
GPU slot100
M.278
Wi-Fi0
42/ 100Productivity

Rewards fast, plentiful M.2 storage and USB I/O, PCIe expansion, memory capacity and slots — what matters for content creation and heavy multitasking.

CPU power11
Capacity & slots50
PCIe expansion65
M.2 storage78
USB I/O17

CPU power

204 W

Limited · 0.8x

Wired for about 204 W, roughly 82% of the 250 W that the top Core Ultra 9 chips pull. Pair it with a mid-range processor rather than a flagship. The figure comes from its 6+1+2 (2x3+1+2?) power-stage (VRM) layout and 8 EPS connectors. It is a rating of what the board is built to deliver, not a measurement, so treat it as headroom rather than a guarantee.

Specifications

Platform

Chipset
B860
Socket
LGA1851
Form factor
Micro ATX

Memory

Type
DDR5
Slots
2
Max speed
9,066 MT/s
Max capacity
128 GB
Channels
2-channel
ECC / memory
UDIMM, CUDIMM

Power & VRM

CPU power
204 W
Phase config
6+1+2 (2x3+1+2?)
EPS power
8
VRM heatsink
Full coverage

Storage & Expansion

M.2 slots
2
M.2 layout
2× PCIe 4.0 ×4
SATA ports
4 SATA3
PCIe ×16 slots
1× PCIe 5.0 ×16, 1× PCIe 4.0 ×4

Ethernet & Wi-Fi

Realtek RTL8125
2.5 GbE
Ethernet ports
1
Wi-Fi
None

USB & I/O

Rear USB-A
3× USB 2.0, 3× 5 Gbps
Front USB 3 headers
1
Front USB 2 headers
2

Audio & Video

Audio codec
ALC897
Audio jacks
3
HDMI
HDMI 2.1
DisplayPort
DP 2.1
USB-C video
None

Cooling, RGB & Design

Fan headers
3
5V ARGB headers
3
PCB colour
Black, Light Grey
Heatsink colour
Black, Light Grey

Onboard & Diagnostics

BIOS Flashback
Yes (board)
Diagnostics
Debug LEDs
TPM header
Yes

Compare the B860M Power against every other board on the motherboard comparison table. Not sure it fits your chip? The socket compatibility guide explains LGA1851 pairings.

Where to buy the B860M Power

Every in-stock retailer offer we track, cheapest first.

Newegg
In stock
$199.00
Buy

The B860M Power starts from $199.00 across 1 retailer (No onboard Wi-Fi). Prices update daily from live stock.

Which CPUs fit the B860M Power?

Compare all CPUs →

In-stock LGA1851 processors this board can run, socket-matched and within its 204 W power budget, ranked by gaming value (performance per dollar).

Affiliate disclosure: Some links on this page are affiliate links — MaxMyBuild may earn a commission at no extra cost to you if you buy through them. As an Amazon Associate, MaxMyBuild earns from qualifying purchases. For Amazon, current price and availability are shown on the Amazon product page; product prices and availability are accurate as of the date and time of purchase and are subject to change. Prices shown for other retailers are approximate and may differ at checkout. “Search” links are non-affiliate and provided for convenience only.