FAQ: Specifications mainboard “BIOSTAR A520MT”.

Jens64 · ‎12.05.2025

FAQs about the BIOSTAR A520MT motherboard.

MSN 20072261

Which processors (CPUs) can be used?
- AMD Ryzen 3rd Gen (Matisse / Renoir) and Ryzen 4th Gen (Vermeer / Cezanne) processors
- AMD Socket AM4
Please refer to www.biostar.com.tw for CPU support list.
What is the maximum amount of RAM that can be installed?
There are 2 memory slots on the mainboard, each of which can hold 32 GB of RAM the maximum capacity is therefore 64 GB.

Module: 288 Pin-DIMM

Type: SDRAM-DDR4

Speed: 3200 MHz

Voltage: 1.2V

⚠️Note⚠️ In the 32-bit editions of Windows operating systems, a maximum of approx. 3.2 GB In the 32-bit editions of Windows operating systems, a maximum of approx. 3.2 GB of memory is recognised. You can find more information on this on the Microsoft website.
If you have not yet installed a memory, this MSI-video can help you.

You can find a list of compatible RAMs here.
Which M.2 cards can be used?
Slot Connection Dimensions Key(s) Comment

1 PCIe 3.0 x 4 & SATA III (M2M_CPU) 2242 / 2260 / 2280 M Key

⚠️Note⚠️ For the fastening you need a screw with metric M2 thread and a length between 2.5 mm and 3.0 mm. The head should have a diameter of 4 mm to a maximum of 5 mm. If the screws are not available in the local specialist shop, you can find them in the online shop.
What is the front PIN assignment for the mainboard?
The front PIN assignment can be taken from the illustration.
What is the assignment of the audio ports (rear)?
- 1 x Front Line out (green)
- 1 x Line IN (blue)
- 1 x Microphone (pink)
Which graphics card slots are available?
- 1 x PCIe 3.0 x16 Slot(x16 or x4 / x4 / x4 / x4 mode)
  - AMD Ryzen 5000 / 3000 Series Processors
or
- 1 x PCIe 3.0 x16 Slot(x16 or x8 / x4 / x4 mode)
  - AMD Ryzen 5000 G / 4000 G Series Processors
Depending on the CPU used
How is the board layout?
How do I keep the bios of my mainboard up to date?
You can download the current bios of your mainboard from the MEDION service homepage via this direct link https://cdn.medion.com/downloads/software/00_Bios_a520mt.zip

Please note that installing the update is at your own risk and that some previous bios settings may have changed following the update. It is therefore advisable to make a note of the most important parameters beforehand

Please proceed as follows:
1. first unpack the downloaded file into a directory of your choice on the hard disc.
2. please start the file with the setup information (.inf) from this directory from the Windows™ interface by right-clicking and select the Install option in the following context menu.
3. if a warning message appears, please click OK to carry out the update.
Once the system has restarted, the changes will take effect and the bios of your MEDION PC will be up to date.