This can help determine if a patched BIOS is necessary or if an alternative solution exists. Share public link
The most reliable source for information on this topic is the Win-Raid Forum , where users share custom AMI Aptio BIOS mods. AMI Aptio MMTool or UEFITool. Module Needed: NVMeExpressDXE.ffs . How to Flash the Patched BIOS (Precautions) samsung b75s1 motherboard patched
Resizable BAR allows the CPU to access the entire video memory of a GPU at once, boosting performance. Most Samsung B75S1 BIOS lack this option. The community has attempted to inject ReBAR UEFI modules, although users report difficulty finding the correct offsets using IFR extractors on this specific board. This can help determine if a patched BIOS
Do you need assistance finding the or step-by-step DOS commands? Module Needed: NVMeExpressDXE
| Test | Stock B75S1 (i5) | Patched B75S1 (Xeon + NVMe) | | :--- | :--- | :--- | | Cinebench R15 Multi | 480 cb | 710 cb | | Windows Boot Time (SATA SSD) | 24 seconds | 14 seconds (NVMe) | | Game FPS (Shadow of TR) | 41 fps (CPU bottleneck) | 67 fps (balanced) | | Memory Speed | 1333MHz CL11 | 1600MHz CL9 (XMP enabled) | | PCIe GPU | RTX 2060 (90% usage) | RTX 2060 (99% usage - ReBAR on) |
On paper, this board is a solid performer. However, Samsung, like many OEMs (Dell, HP, Lenovo), locked down the BIOS severely. Standard features like XMP memory profiles, advanced power management, and—most critically—support for and non-Samsung GPUs were either hidden or missing entirely.