1. Especificacions
The SOYO B450M D4 PRO motherboard is designed for AMD AM4 socket processors, offering a robust platform for various computing needs.

Acabatview of motherboard features and rear I/O ports.
| Característica | Descripció |
|---|---|
| Suport del processador | AMD AM4 Socket, compatible with AMD Ryzen 1st, 2nd, 3rd, 4th, and 5th Generation Processors (including 3000/3000G, 4000/4000G, and 5000/5000G series). |
| Chipset | AMD B450 |
| Memòria | 2x DDR4 DIMM Slots (Dual-Channel), Max 64GB (32GB per DIMM), Supports 2133/2400/2666/3000/3200/3400/3600MHz (OC/XMP). |
| Emmagatzematge | 1x M.2 Slot (NVME & NGFF, 2280/2260/2242 form factors, PCIe 3.0 x4 & SATA 3.0), 4x SATA 3.0 (6 Gb/s) Ports. |
| Sortides de visualització | 1x HDMI 2.0, 1x VGA. |
| Ports d'E/S posterior | 4x USB 3.0, 1x PS/2 Keyboard, 1x PS/2 Mouse, 1x RJ45 Gigabit LAN, Audio Ports (Line Out, Line In, Mic In). |
| Capçaleres internes | 1x FUSB20_1 (2x USB 2.0), 1x FUSB30_1 (2x USB 3.0), F_PANEL, SPEAK, DEBUG, COM (RS232), CLR_CMOS, JAUDIO1. |
| Ranures d'expansió | 1x PCIe 3.0 x16, 1x PCIe 2.0 x1. |
| Àudio | Realtek 7.1 Channel HD Audio Codec. |
| Treball en xarxa | Realtek Gigabit LAN (1000Mbps), Supports PXE Boot and Wake-on-LAN. |
| Power & Cooling | 1x 24-Pin ATX Power, 1x 8-Pin ATX12V Power, 1x 4-Pin CPU_FAN, 3x System Fan Headers (2x 3-Pin, 1x 4-Pin). |
| Factor de forma | Micro-ATX (180mm x 216mm), 4-Layer PCB. |
| Entorn de funcionament | Operating Temp: 0~50°C, Storage Temp: -20~70°C, Humidity: 5%~95% (Non-Condensing). |
| Consum d'energia | Idle: ~41W, Full Load: 130-150W (excluding GPU). Recommended to use a high-power PSU (at least 500W) for high-consumption hardware. |
| Sistema operatiu | Windows 10/11. |

Detailed specifications table.
2. Guia de configuració
2.1. CPU & Fan Installation
Install the CPU into the AM4 Socket as shown below. Ensure proper alignment and gentle handling.

CPU and Socket alignment for installation.
- Make sure the motherboard supports your specific CPU model.
- Always unplug the power cord before installing or removing the CPU to prevent hardware damage.
- Retain the CPU protective cap after installing the processor.
- Do not power on the computer without the CPU cooler installed to prevent overheating.
- Ensure the CPU heat sink forms a tight seal with the CPU.
- Apply an even layer of thermal paste between the CPU and heatsink.
- Align the CPU and socket using the small triangle marks for Pin One. Gently place the CPU into the socket, lower the locking lever, and latch it. Do not force the CPU.
- Connecteu el connector d'alimentació de la CPU de 4 pins a la capçalera d'alimentació de la CPU de 4 pins de la placa base.
2.2. Instal·lació de memòria
The motherboard features two DDR4 DIMM slots. Follow these steps for memory installation:

Dual-channel DDR4 memory slots.
- Premeu els pestells dels dos costats de la ranura de memòria cap a fora.
- Insert the memory module by aligning it with the notch in the slot.
- Flip the latches back to lock the memory module.
- If installing only one memory module, install it in the outermost slot.
Important:
- Ensure the motherboard supports the memory. Use modules of the same capacity, brand, speed, and chips for optimal compatibility.
- Always turn off the computer and unplug the power cord before installing memory.
- Memory modules have a foolproof design; they can only be inserted in one direction. If it doesn't fit, switch the direction.
- Dual-Channel mode requires two memory modules.
2.3. Instal·lació de la targeta d'expansió
The motherboard provides one PCIe 3.0 x16 slot and one PCIe 2.0 x1 slot for expansion cards.

PCIe expansion slots and M.2 interface.
- Place the expansion card into an available PCI Express slot.
- Press the card firmly until it is fully inserted and secured.
Important:
- Always turn off the power supply and unplug the power cable before adding or removing expansion cards.
- Incorrect installation can cause short circuits and damage the card or motherboard.
2.4. Instal·lació d'un SSD M.2
Per instal·lar un SSD M.2:
- Inseriu el vostre SSD M.2 a la ranura M.2 amb un angle de 30 graus.
- Secure the M.2 SSD in place with the provided screw.
2.5. Potència de connexió
Ensure all power connectors are securely attached before powering on the system.
| Pin | Senyal | Pin | Senyal |
|---|---|---|---|
| 1 | +3.3V | 13 | +3.3V |
| 2 | +3.3V | 14 | -12V |
| 3 | Terra | 15 | Terra |
| 4 | +5V | 16 | PS-ON |
| 5 | Terra | 17 | Terra |
| 6 | +5V | 18 | Terra |
| 7 | Terra | 19 | Terra |
| 8 | Potència correcte | 20 | NC |
| 9 | 5VSB | 21 | +5V |
| 10 | +12V | 22 | +5V |
| 11 | +12V | 23 | +5V |
| 12 | +3.3V | 24 | Terra |
| Pin | Senyal |
|---|---|
| 1 | Terra |
| 2 | Terra |
| 3 | +12V |
| 4 | +12V |
Important:
- It is recommended to use a power supply that can handle high power consumption (at least 500W). Insufficient power can lead to an unstable or unbootable system.
2.6. Connexió dels capçals del panell frontal
Connect your case's front panel cables to the corresponding headers on the motherboard.
| Pin | Senyal | Pin | Senyal |
|---|---|---|---|
| 1 | HDD LED + | 2 | LED d'alimentació + |
| 3 | HDD LED - | 4 | Power LED - |
| 5 | Interruptor de restabliment | 6 | Interruptor d'alimentació |
| 7 | Reservat | 8 | Reservat |
| 9 | Reservat | 10 | Reservat |
| Pin | Senyal | Pin | Senyal |
|---|---|---|---|
| 1 | MIC L | 2 | Terra |
| 3 | MIC R | 4 | NC |
| 5 | Telèfon principal R | 6 | Detecció de MIC |
| 7 | SENSE_SEND | 8 | Cap pin |
| 9 | Telèfon principal L | 10 | Detecció de capçalera |
| Pin | Senyal | Pin | Senyal |
|---|---|---|---|
| 1 | VCC | 2 | VCC |
| 3 | USB 0- | 4 | USB 1- |
| 5 | USB 0+ | 6 | USB 1+ |
| 7 | Terra | 8 | Terra |
| 9 | Cap pin | 10 | NC |
| Pin | Senyal | Pin | Senyal |
|---|---|---|---|
| 1 | VBUS | 11 | D2+ |
| 2 | SSRX1- | 12 | D2- |
| 3 | SSRX1 + | 13 | Terra |
| 4 | Terra | 14 | SSTX2 + |
| 5 | SSTX1- | 15 | SSTX2- |
| 6 | SSTX1 + | 16 | Terra |
| 7 | Terra | 17 | SST2+ |
| 8 | D- | 18 | SST2- |
| 9 | D+ | 19 | VBUS |
| 10 | NC | 20 | Cap pin |
Important:
- Una connexió incorrecta entre el connector del mòdul i la capçalera de la placa base farà que el dispositiu no pugui funcionar o fins i tot el danyï.
2.7. Connecting Back Panel I/O
El panell d'E/S posterior proporciona diversos ports per connectar perifèrics.

Rear I/O ports.
- Ports USB 2.0: 6 ports (2 on rear, 4 via internal header) with 480Mbps speed.
- Ports USB 3.0: 4 ports (2 on rear, 2 via internal header) with 5Gbps speed.
- Port VGA: 15-pin analog video output.
- Port HDMI: Digital video and audio output, supports up to 1080p and 4K.
- Port LAN RJ45: Gigabit Ethernet (1000Mbps).
- Ports d'àudio: Line-in, Line-out, Mic-in jacks.
| Link/Activity LED Status | Descripció | Speed LED Status | Descripció |
|---|---|---|---|
| Apagat | Sense enllaç | groc | Connexió de 10 Mbps |
| groc | Enllaçat | Verd | Connexió de 1000 Mbps |
3. Instruccions de funcionament
3.1. Configuració de la BIOS
The BIOS (Basic Input and Output System) manages the hardware parameters and initializes components during startup. It allows users to modify basic system configurations.
Important:
- BIOS flashing is potentially risky. Only flash the BIOS if necessary and with caution. Inadequate flashing can lead to system malfunction.
- The default BIOS settings are recommended for optimal system stability. Modifying settings incorrectly can prevent the system from booting.
- BIOS updates may change settings. This manual serves as a reference.
3.2. Entrar a la configuració de la BIOS
To enter the BIOS Setup Menu:
- When the computer starts, press the DEL clau.
- Alternatively, use the “Quick Boot Key” by pressing F11.
- If the message disappears too quickly, restart the computer by pressing the Restableix button on the case or by pressing Ctrl+Alt+Suprimeix.
4. Manteniment
4.1. CMOS clar
Clearing the CMOS can help resolve certain system issues by restoring BIOS settings to their defaults.
- Assegureu-vos que l'ordinador estigui apagat i desconnectat.
- Locate the JCMOS1 header on the motherboard.
- Short the JCMOS1 jumper (usually by moving a jumper cap from pins 1-2 to 2-3, waiting a few minutes, then returning it to 1-2).
Important:
- Always turn off the computer and unplug the power cord before clearing CMOS data.
4.2. Atenció general
- Keep the motherboard and PC case clean and free of dust to ensure proper airflow and prevent overheating.
- Ensure all fans (CPU, system, GPU) are functioning correctly.
5. Resolució de problemes (FAQ)
5.1. Can't Boot (No response, fan not rotating, indicator light off)
- Netegeu el pont CMOS.
- Check CPU compatibility with the motherboard.
- Verify motherboard and CPU power supply connections, and ensure the case power switch is on.
- Check if the system panel power-on cable is properly plugged in.
- Ensure the power supply unit (PSU) is in good condition.
- Remove non-essential components (graphics card, hard disk, USB devices) and try to boot.
- Try replacing the CPU with another compatible one.
5.2. Start-up and then Shutdown (Fan rotates once then stops)
- Netegeu el pont CMOS.
- Check if the CPU model is compatible.
- Replace and troubleshoot if the CPU is damaged.
- Substituïu els mòduls de memòria.
- Remove non-essential components (graphics card, hard drive, USB device) and test again.
5.3. Computer Keeps Restarting (Reboot loop)
- Netegeu el pont CMOS.
- Check CPU compatibility with the motherboard.
- Check if the CPU is defective (replace if necessary).
- Replace the RAM and check for compatibility or defects.
- Remove non-essential components (graphics card, hard disk, USB devices) and test again.
5.4. Sense pantalla
There are two states for no display:
- Estat 1: Fan rotates, Caps Lock key does not respond.
- Netegeu el pont CMOS.
- Check motherboard and CPU power supply connections.
- Ensure memory sticks are in the correct slots (some motherboards have specific slot requirements).
- Check CPU and memory model compatibility.
- Replace CPU or memory.
- Estat 2: Fan rotates, Caps Lock key lights up.
- Assegureu-vos que el monitor estigui encès.
- Check if the monitor display cable (DP, HDMI, DVI, VGA) is securely plugged in.
- If using a CPU without integrated graphics (e.g., Ryzen 'F' series), a dedicated graphics card must be installed.
- Ensure the display cable is connected to the correct display interface (motherboard's integrated graphics port if no dedicated GPU, or dedicated GPU port if one is installed).
- Replace the display data cable.
- Replace the graphics card and test again.
5.5. Blue Screen or Crash
- Check motherboard heat dissipation (CPU fan working, cooler base tightly fitted, thermal paste applied).
- Substituïu la CPU.
- Substitueix la memòria.
- Substituïu el disc dur.
- Reinstall the operating system.
- Substituïu la font d'alimentació.
6. Consells d'usuari
- BIOS Updates for Newer CPUs: For newer Ryzen CPUs like the 5500 or 5700g, ensure your BIOS is updated to the latest version for full compatibility and optimal performance. Check the manufacturer's website for BIOS updates.
- Activating XMP for Memory: To utilize memory at its advertised speeds (e.g., 3200MHz), you may need to enable XMP (Extreme Memory Profile) in the BIOS settings. Refer to the BIOS Setup section for guidance on accessing the BIOS.
- Bateria CMOS: Note that due to shipping restrictions, the CR2032 CMOS battery is not included with the motherboard. You will need to purchase and install one separately.
7. Garantia i assistència
For any issues not covered in this manual, or for warranty claims, please contact the seller or SOYO customer support. Keep your purchase records for reference.
Podeu descarregar un manual d'usuari detallat en format PDF: Descarrega el manual d'usuari (PDF)
8. Producte acabatview Vídeo
Un visual acabatview of the SOYO B450M D4 PRO motherboard, showcasing les seves característiques i disseny.