About Pasha03

Thank you to everyone who replied and helped clarify this issue. After updating to the official Medion OEM BIOS A520MT.106 IOMMU became available and FACEIT Anti Cheat works correctly. Hopefully this information helps other Medion Erazer users. ... View more

Request confirmation for new Medion OEM BIOS A520MT.106 and IOMMU support I am using a Medion Erazer OEM system with a Biostar A520MT motherboard Biostar support has provided a new Medion OEM BIOS for this board BIOS version A520MT.106 Download link https://download.biostar.com.tw/temp/Medion/A520MT_20251001.zip According to Biostar this BIOS includes an fTPM firmware update but does not mention any changes related to IOMMU or AMD Vi Before installing this BIOS I would like to kindly ask you to confirm First Is this BIOS A520MT.106 officially approved and supported by Medion for Medion Erazer systems Second Does this BIOS add or expose the IOMMU AMD Vi option or is IOMMU still intentionally disabled on this platform Third Should users expect IOMMU support in any future BIOS updates or is this limitation permanent for this model For reference the BIOS update procedure provided by Biostar is Extract the BIOS file and copy it to a FAT32 formatted USB flash drive Enter BIOS by pressing Del Load Optimized Defaults with F3 and save with F10 Enter BIOS update utility with F12 and perform the update After update load Optimized Defaults again and save An official confirmation would be very helpful and would prevent users from attempting unsafe BIOS flashing Thank you very much for your time and support ... View more

Official response from Biostar Medion support IOMMU is locked at BIOS level on Medion Erazer OEM systems There is no option to enable it and no supported workaround exists Flashing a non OEM BIOS is not recommended and may permanently damage the board Software that requires IOMMU such as FACEIT Anti Cheat is unsupported on this system So this is a confirmed OEM BIOS limitation not a configuration issue ... View more

Hi Fishtown thank you for the clarification You are right that the retail Biostar A520MT BIOS has newer releases in 2025 However my system uses a Medion OEM version of this board with a custom BIOS The Medion BIOS installed on my system is version 5.17 dated 09 10 2024 and this is the latest BIOS officially provided by Medion for this exact model With this BIOS there is no IOMMU option exposed anywhere even though the CPU and chipset support it Because this seems to affect multiple users I would like to ask if a Medion or Biostar engineer or someone with official technical knowledge could clarify the situation On several external forums and communities owners of Medion Erazer systems with Biostar OEM boards are actively looking for a solution and so far no confirmed workaround has been found Before attempting anything risky an official confirmation on one of the following points would be very helpful Either that flashing a retail Biostar A520MT BIOS using Smart Update is confirmed to be safe on Medion OEM boards Or that IOMMU is intentionally disabled in the Medion OEM BIOS and therefore cannot be enabled on this system An official statement would help many users and prevent people from damaging their systems by experimenting Thank you ... View more

Thanks for the link I have checked and I am already running this BIOS version BIOS 5.17 dated 09 10 2024 There is still no IOMMU option anywhere in the BIOS menus So this update does not add or expose IOMMU on this system Looks like IOMMU is permanently disabled in Medion OEM BIOS ... View more