The Motherboard

Chapter 3 — The Motherboard

The motherboard is the nervous system of the build. Every other component connects to it — the CPU sits in it, RAM slots into it, storage plugs into it, and the GPU draws power through it. Choose the wrong one and you limit what CPU you can use, how fast your RAM can run, how many drives you can fit, and what you can add later. Choose well and it quietly enables everything else to perform at its best.

What we're replacing: Your MSI B560M PRO-E is an LGA1200 (Micro-ATX) board, compatible only with 10th and 11th generation Intel CPUs. That platform is discontinued — no new CPUs will ever fit it. This chapter selects its replacement and settles the DDR4 vs DDR5 question once and for all.

What a Motherboard Does

A motherboard performs four core functions:

  • Physical mounting — provides sockets, slots, and ports for every component to attach to in the correct position relative to each other
  • Power distribution — receives power from the PSU and regulates it down to precise voltages for the CPU, RAM, and chipset via the VRM (Voltage Regulator Module)
  • Communication — manages the data lanes between the CPU, RAM, storage, GPU, and peripherals according to the chipset's routing rules
  • Configuration — the BIOS/UEFI firmware lets you set boot order, enable XMP RAM profiles, monitor temperatures, and configure power settings before the OS even loads

The Platform Decision

The most important choice in selecting a motherboard is the platform — the combination of CPU socket and chipset generation. This decision locks in which CPUs you can use and which RAM type is supported. For a new build in 2024–2025, three platforms are worth considering:

Intel LGA1700 — DDR5 Recommended
SocketLGA1700
CPU generations12th, 13th gen
RAMDDR5 — new RAM needed
Board price range£160 – £240 (ATX, B760)
Extra RAM cost~£130–160 (64GB DDR5-5600)
Board selectionWidest — most current stock
  • Mature, well-tested platform
  • Widest board choice at every price point
  • Excellent driver and software support
  • DDR5 now affordable and future-proof
  • More M.2 slots on typical boards vs DDR4 variants
  • Requires new 64GB DDR5 kit (~£130–160)
  • Socket will be replaced by LGA1851 for 15th gen+
Intel LGA1700 — DDR4 RAM-Saving Option
SocketLGA1700
CPU generations12th, 13th gen
RAMDDR4 — keeps your 64GB kit
Board price range£140 – £200 (ATX, B760)
Extra RAM cost£0 — reuse existing
Board selectionNarrowing — fewer new models
  • Saves ~£130–160 by reusing existing 64GB DDR4-3600
  • DDR4-3600 is genuinely fast enough for dev workloads
  • Slightly cheaper boards than DDR5 equivalents
  • DDR4 boards increasingly hard to find new in 2025
  • Fewer M.2 slots on some DDR4 board variants
  • Less future-proof (DDR4 ecosystem declining)
AMD AM5 — DDR5 Strong Alternative
SocketAM5
CPU generationsRyzen 7000, 8000, 9000
RAMDDR5 only — new RAM needed
Board price range£160 – £250 (ATX, B650)
Extra RAM cost~£130–160 (64GB DDR5-5600)
Platform longevityAMD committed to AM5 through 2027+
  • Longer platform lifespan — AM5 will support future Ryzen generations
  • Excellent multi-thread performance for compilation
  • Good value at the mid-range CPU tier
  • Requires new 64GB DDR5 kit (~£130–160)
  • Slightly higher board+CPU entry cost vs Intel equivalent
  • Some dev tools and VMs have better Intel optimisation
The verdict for your build: The recommended platform is Intel LGA1700 with a DDR5 board. Here's why: DDR4 boards are becoming harder to source new and have fewer M.2 slots in the same price bracket. The cost difference — approximately £130–160 for a new 64GB DDR5-5600 kit — is modest given your overall budget, and your existing DDR4-3600 kit can be sold to offset some of this. DDR5 is the mainstream standard for the next several years. AMD AM5 is an excellent alternative and worth considering if the CPU chapter (PC4) points strongly toward a Ryzen option.

Chipsets Explained

The chipset is a chip on the motherboard that manages traffic between the CPU, storage, USB, PCIe lanes, and other peripherals. The chipset generation must match the CPU generation, and the chipset tier determines which features are unlocked.

Intel LGA1700 chipsets (relevant to your build)

ChipsetCPU OCRAM OC / XMPPCIe LanesM.2 Slots (typical)Verdict
H610 No No XMP Fewer 1–2 Budget only — avoid for this build
B660 / B760 No XMP / XMP 3.0 Good 2–3 Sweet spot — recommended
H670 / H770 No Yes More 2–3 Mid-tier, not much over B760 for your needs
Z690 / Z790 Yes Yes + manual OC Most 3–5 Worth it only if overclocking — adds £60–100

B760 is the current-generation B-series chipset for 12th/13th gen Intel. It supports XMP (the profile that tells the board to run your RAM at its rated speed rather than the JEDEC default), offers 2–3 M.2 slots on most ATX boards, and costs £30–60 less than Z790 without meaningfully sacrificing anything for a non-overclocking development workstation.

AMD AM5 chipsets (for comparison)

ChipsetCPU OCRAM OC / EXPOVerdict
A620NoLimitedToo restricted — avoid
B650LimitedEXPO / XMPAMD equivalent of B760 — recommended if going AM5
X670 / X670EYesFullEnthusiast tier — unnecessary for this build

Reading a Motherboard Specification Sheet

Socket
e.g. LGA1700, AM5
The physical CPU interface. Must match the CPU exactly — there is no adapter. Intel and AMD sockets are completely incompatible with each other.
Form Factor
ATX / mATX / ITX
Physical size. Must fit your case. ATX (305×244mm) gives most expansion. Micro-ATX (244×244mm) is smaller with fewer slots. Your case decision from Chapter 2 is directly linked to this choice.
VRM — Power Phases
e.g. 12+1+1 phases
The Voltage Regulator Module delivers clean, stable power to the CPU. More phases = better power distribution = less heat and throttling under sustained load. For a non-overclocking B760 build with a 13th gen K CPU, 10+ CPU power phases is adequate.
RAM Slots
4 slots (2 channels)
ATX boards have 4 RAM slots, supporting dual-channel operation. Your 64GB kit (2×32GB) fills 2 slots in dual-channel configuration. Always populate matching slots (A2+B2 on most boards) for dual-channel unless the manual says otherwise.
Max RAM Speed (XMP)
e.g. DDR5-7600 OC
The highest RAM speed the board officially supports via XMP profile. DDR5's native JEDEC speed is 4800MHz — without XMP enabled in the BIOS, fast DDR5-5600 kits will run at 4800MHz. Always enable XMP after first boot.
M.2 Slots
e.g. 3× M.2 (Gen 4)
NVMe SSD slots. More is better — aim for at least 2 on an ATX board (one for the OS drive, one for additional fast storage). Note whether slots support PCIe Gen 3, Gen 4, or Gen 5 — Gen 4 is the practical sweet spot in 2024/25.
SATA Ports
e.g. 4× SATA 6Gb/s
For your Samsung 870 EVO and WD Blue SSDs. Any modern board has at least 4 SATA ports. Check whether enabling certain M.2 slots disables some SATA ports (a common design trade-off on budget boards).
PCIe x16 Slot
PCIe 5.0 x16
The primary slot for your GPU. All B760 boards have at least one full-length PCIe slot wired directly to the CPU for maximum bandwidth. Your RTX 3050 LP is PCIe 4.0 and works fine in any PCIe 4.0 or 5.0 slot.
Rear USB-A / USB-C
e.g. 4× USB-A, 1× USB-C
The ports on the rear I/O panel. For a dev machine with WinSCP, USB drives, dongles, and peripherals, more USB-A ports is better. USB-C 10Gbps or 20Gbps on the rear is a bonus. Check at least one USB-A port runs at USB 3.2 Gen 2 (10Gbps) speed.
Ethernet Speed
2.5GbE recommended
Your remote desktop sessions (X2GO, RDP) benefit from fast local network throughput. 2.5GbE is now standard on mid-range motherboards; 1GbE is the minimum. Check the NIC brand — Intel and Realtek 2.5G NICs are both reliable.
Wi-Fi / Bluetooth
Wi-Fi 6 / 6E + BT 5.x
Built-in wireless. Available in "WiFi" variants of most boards at ~£20–30 premium. For a wired desktop, it's optional — but convenient for Bluetooth peripherals (keyboard, mouse, headphones) even if the network connection remains wired.
Fan / Pump Headers
e.g. 1× CPU_FAN, 4× SYS_FAN
PWM headers for connecting case fans and CPU coolers. Count them against your planned fan setup. If you have more fans than headers, a cheap fan hub (£10–15) splices multiple fans into one header. At least 4 system fan headers is comfortable for an ATX build.
Front Panel USB Header
USB 3.2 Gen 1 + USB-C
Connects to the front I/O of your case. If your case has a front USB-C port, the motherboard needs a corresponding USB-C header (Type-E connector). Confirm this matches before buying — it's easy to overlook.
BIOS FlashBack
Nice to have
Lets you update the BIOS from a USB drive without a CPU or RAM installed. Useful if you buy a board that needs a BIOS update to support your CPU — without this feature, you'd need a compatible older CPU to perform the update first.

Understanding the VRM

The VRM (Voltage Regulator Module) is the cluster of components along the top and left edge of the motherboard that converts the 12V from the PSU down to the precise voltage the CPU needs (typically 1.0–1.4V) and distributes it across multiple phases to reduce heat and ripple.

MOTHERBOARD — VRM LOCATION ┌──────────────────────────────────────────────────┐ │ VRM phases (MOSFETs + chokes + capacitors) │ │ ██████████████████████████████████████ │ ├──────────────────────────────────────────────────┤ │ ██ ┌────────────┐ RAM slots ▓▓ ▓▓ ▓▓ ▓▓ │ │ ██ │ CPU │ │ │ ██ │ Socket │ PCIe x16 ═══════════════════ │ │ ██ └────────────┘ │ │ M.2 slots [ ][ ][ ] │ └──────────────────────────────────────────────────┘ VRM phases = more phases → cooler, more stable power delivery For a 65–125W CPU on a B760, 10+ phases is sufficient. Poor VRM causes thermal throttling under sustained all-core load.

For your build, the key is matching VRM quality to the CPU. The i5-13600K and i7-13700K both have unlocked multipliers (K-suffix) but on a B760 board the CPU runs to Intel's default power limits — the VRM workload is predictable. A board advertised with "12+1" or more CPU power phases from a mainstream brand (MSI, ASUS, Gigabyte, ASRock) at the B760 price tier will handle either CPU comfortably.

Watch out for: Some budget boards claim high phase counts but use "doublers" — one driver chip running two phases simultaneously. A board with "6+6 true phases" often outperforms one with "12 phases (doubled)". Reputable tech reviewers (Hardware Unboxed, Gamers Nexus) publish VRM analyses for popular boards if you want to dig deeper before purchasing.

What Makes a Motherboard Good vs Bad

Signs of a Good Board
  • Strong VRM with heatsinks covering the phases
  • XMP 3.0 support for DDR5 rated speed
  • 3+ M.2 slots on an ATX form factor
  • 2.5GbE ethernet (Intel or Realtek 2.5G NIC)
  • USB-C on the rear I/O panel
  • Front panel USB-C header (Type-E)
  • BIOS FlashBack for CPU-free updates
  • Good rear I/O coverage (6+ USB-A ports)
  • Pre-installed I/O shield (saves fiddling)
  • Clear BIOS with easy XMP toggle
  • PCIe slot screw-latch (prevents GPU sag)
  • M.2 thermal shields on all slots
Red Flags to Avoid
  • Only 1 M.2 slot on an ATX board
  • H610 chipset — no XMP at all
  • VRM with no heatsink on a K-series CPU board
  • Only 1GbE ethernet in 2024/25
  • USB 2.0 only front panel header
  • Fewer than 4 SATA ports
  • M.2 slots that disable SATA ports when used
  • Only 2 fan headers on an ATX board
  • Capacitors crowding the CPU socket area (cooler clearance)
  • Poor BIOS reputation (check recent reviews)
  • No XMP/EXPO support labelling — read carefully
  • Flimsy PCIe slot without retention clip

Recommended Boards for Your Build

All recommendations below are ATX, LGA1700, and B760 chipset. Boards are presented in DDR5 and DDR4 variants side by side so you can compare the trade-offs directly.

DDR5 Boards (recommended path — requires new 64GB DDR5 kit)

MSI MAG B760 TOMAHAWK WIFI DDR5 Top Pick
Socket / ChipsetLGA1700 / B760
Form factorATX
RAMDDR5, 4 slots, up to 192GB, XMP 3.0
M.2 slots3× (1× Gen 5, 2× Gen 4)
SATA ports6
VRM12+1+1 phases, large heatsinks
Ethernet2.5GbE (Realtek)
Wi-FiWi-Fi 6E + Bluetooth 5.3
Rear USB4× USB-A 3.2, 1× USB-C 10Gbps
Front USB-C headerYes (Type-E)
FlashBackYes
£185 – £220
The Tomahawk series has a strong reputation for solid VRM quality at a fair price. Three M.2 slots means a dedicated NVMe OS drive plus your two SATA SSDs plus room to grow. The included Wi-Fi 6E is useful for Bluetooth even on a wired network. Excellent BIOS with straightforward XMP activation.
ASUS TUF Gaming B760-Plus WiFi D5 Strong Option
Socket / ChipsetLGA1700 / B760
Form factorATX
RAMDDR5, 4 slots, up to 192GB, XMP 3.0
M.2 slots3× M.2 (Gen 4)
SATA ports4
VRM12+1 phases, heatsink covered
Ethernet2.5GbE (Intel i225-V)
Wi-FiWi-Fi 6E + Bluetooth 5.3
Rear USB4× USB-A, 1× USB-C 10Gbps
Front USB-C headerYes
FlashBackNo — check BIOS version for CPU support
£175 – £210
ASUS TUF boards are well-regarded for reliability and clear BIOS layout. The Intel 2.5GbE NIC is preferred by some over Realtek for driver stability in Linux environments — relevant given your X2GO Linux remote sessions. Only 4 SATA ports vs 6 on the Tomahawk, but sufficient for your 2 SSDs plus Blu-ray.

DDR4 Boards (if keeping existing 64GB DDR4-3600 kit)

MSI MAG B760 TOMAHAWK DDR4 DDR4 Pick
Socket / ChipsetLGA1700 / B760
Form factorATX
RAMDDR4, 4 slots, XMP 3.0 to 5333MHz
M.2 slots2× (Gen 4)
SATA ports6
VRM12+1 phases
Ethernet2.5GbE
Wi-FiNo (separate WiFi variant available)
Front USB-C headerYes
£155 – £185
The DDR4 sibling of the top pick. Same VRM and build quality, saves ~£30 on the board price plus ~£150 by reusing your existing RAM. Only 2 M.2 slots vs 3 on the DDR5 version — you'll use one for the OS NVMe drive, leaving one spare. Still plenty for your needs. Note: no built-in Wi-Fi on this variant.
Gigabyte B760 AORUS Elite AX DDR4 DDR4 + WiFi
Socket / ChipsetLGA1700 / B760
Form factorATX
RAMDDR4, 4 slots, XMP support
M.2 slots2× (Gen 4)
SATA ports4
Ethernet2.5GbE
Wi-FiWi-Fi 6E (AX variant)
Front USB-C headerYes
£165 – £195
If you want DDR4 with built-in Wi-Fi, the AORUS Elite AX is a strong option. Gigabyte's BIOS (now called GIGABYTE UEFI) has improved considerably. AORUS boards generally have more visual lighting than the Tomahawk, though most RGB can be disabled entirely from the BIOS.

Your Existing Board — MSI B560M PRO-E

SpecificationB560M PRO-EAssessment
SocketLGA1200Dead platform — 10th/11th gen Intel only
Form factorMicro-ATXLimits to mATX or smaller cases
RAM typeDDR4 onlyCan't be reused with a new CPU platform
ChipsetB560No overclocking, limited to its generation
M.2 slots1× M.2 (Gen 3)Only one slot — no room to expand storage
SATA ports4Adequate but not generous
Ethernet1GbESlower than current 2.5GbE standard
VerdictReplace — platform is discontinued, no upgrade path exists

Assembly — Installing the Motherboard

Important: Install the CPU, RAM, and M.2 NVMe drives onto the motherboard before placing it in the case. Working on a bare board on a flat surface is far easier than reaching into a case. Chapter 13 covers the full build sequence, but the pre-installation steps below are motherboard-specific.
1
Unbox and inspect on anti-static surface
Remove the motherboard from its anti-static bag and place it on the bag itself or a non-conductive surface. Inspect for bent pins in the CPU socket, damaged capacitors, or broken PCIe/RAM tabs. Wear your anti-static wrist strap throughout.
The CPU socket area on LGA1700 boards has a plastic protective cover. Remove this only when you're ready to install the CPU — never force it off and never touch the socket contacts.
2
Install the CPU (covered fully in Chapter 4)
LGA1700 is an Intel socket — the pins are on the motherboard, not the CPU. Lift the socket lever, align the CPU's golden triangle marker with the socket's corresponding triangle, lower it in without force, and close the lever. Chapter 4 has the full detail.
Do this before fitting RAM — the CPU lever requires some pressure and can flex the board. It's safer with the board flat on a desk.
3
Install RAM in the correct slots
For 2 sticks in a 4-slot board, check your manual for the dual-channel configuration — usually slots A2 and B2 (the 2nd and 4th slots from the CPU). Push each stick straight down until both retention clips click. The notch in the stick ensures it can only go in one way. Never force RAM — if it needs excessive force, the stick is not aligned.
Installing RAM in the wrong slots (e.g. A1+B1 instead of A2+B2) still works but disables dual-channel mode, halving memory bandwidth. Check the manual silkscreen or the coloured slots for the correct pairing.
4
Install M.2 NVMe drives
Remove the M.2 slot heatsink (if present — usually 2 screws). Insert the NVMe drive at a 30° angle into the slot, press it flat, and secure with the single small retaining screw. Replace the heatsink. The drive will not operate above its rated temperature without the heatsink — don't skip it.
The M.2 retaining screw is one of the smallest in the build — use a magnetic screwdriver and a parts tray. Dropping it inside the case is a significant inconvenience.
5
Fit the I/O shield and mount the board in the case
Press the I/O shield (supplied with the motherboard — many modern boards have it pre-attached) firmly into the case's rear cutout. Lower the motherboard onto the standoffs, align the rear ports with the I/O shield, and insert all mounting screws in a diagonal cross pattern. Connect the 24-pin ATX and 8-pin CPU power connectors.
Route the 8-pin CPU cable before mounting the board — it runs to the top-left of the board and is very difficult to connect after the cooler is installed.
6
Connect SATA, front panel, and fan headers
Plug SATA data cables from the board to your drives. Connect front panel connectors (power SW, reset SW, HDD LED, power LED — covered in Chapter 2). Connect case fans to SYS_FAN headers. Connect the front USB 3.0 header and the USB-C Type-E header if your case has a front USB-C port.

Testing the Motherboard

The first boot after installing a new motherboard is called POST — Power On Self Test. The board checks that all essential components are responding before handing control to the BIOS.

First POST: Connect a monitor to the GPU (not the motherboard's rear video output) and power on. The board should POST and display the manufacturer's logo within a few seconds. If it doesn't, diagnostic LEDs on the board (CPU, DRAM, VGA, BOOT) indicate where it's hanging — consult your manual.
Enter BIOS: Press the BIOS key at startup (usually Delete or F2). Confirm the CPU is correctly identified (e.g. "Intel Core i7-13700K"), the RAM size is correct (64GB), all M.2 and SATA drives are listed, and temperatures look sensible (CPU below 50°C at idle).
Enable XMP: In the BIOS, find the memory profile setting (usually on the first or "OC" page). Enable XMP (Intel) or EXPO (AMD). Save and reboot. After boot, confirm RAM speed in BIOS or via CPU-Z — it should now show your rated speed (e.g. DDR5-5600) not the default JEDEC speed (DDR5-4800).
CPU-Z verification: Boot into Windows and run CPU-Z (free download). The CPU tab should show your exact processor model. The Memory tab should show your XMP speed. The SPD tab should show both RAM sticks in slots 2 and 4.
Storage detection: In Windows Disk Management (right-click Start → Disk Management), confirm all drives appear: NVMe OS drive, Samsung 870 EVO 2TB, WD Blue 1TB. If a drive is missing, check the SATA cable seating and whether the M.2 slot's SATA port sharing has disabled a port.
Fan headers working: Check HWMonitor or the BIOS hardware monitor to confirm all connected fans show RPM readings. A fan showing 0 RPM is either disconnected, faulty, or connected to a header in DC (not PWM) mode.
Network detection: Confirm the 2.5GbE NIC appears in Windows Device Manager and that your router/switch assigns it an IP address. Run a speed test or file transfer to confirm 2.5Gbps capability if your network switch supports it.
MemTest86 (optional but recommended for new RAM): Boot from a MemTest86 USB stick (free download) and run at least 2 passes. This catches faulty RAM sticks before you spend hours troubleshooting strange crashes later. Takes 30–60 minutes for 64GB.
Diagnostic LEDs: Most quality B760 boards have 4 LEDs near the RAM slots labelled CPU, DRAM, VGA, BOOT. During POST they illuminate briefly in sequence. If the board stops at a particular LED, that component is the problem. A DRAM LED that stays lit means the RAM isn't seated — press both sticks firmly and try again.
Next: Type PC4 to generate Chapter 4 — The CPU, where we'll decide between the i5-13600K and i7-13700K for your development workload.