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Asus B250 Mining Expert BIOS Settings (PiMP OS v2.6+)

  • Support

    ** Note: The pics are not of the highest quality due to the physical location of my farm, however, they are still usable, so I've decided to add them anyway.

    To start, you will need to verify/update your motherboard's BIOS to at least v1010.
    As of 10/22/2018, BIOS v1206 is the most current and should be used.

    You can get the BIOS files from the Asus website: Here

    ** Note: Due to the way the Asus site works, you may have to search for it.

    From the link above, if you see something like in the below pic, you will want to click the "See All Downloads" (Notice that first file, MEUpdateTool?... this is not a BIOS file.) This is a proper BIOS file.
    0_1540223085121_Asus BIOS-1.PNG 0_1540223240510_Asus BIOS-2.PNG

    Once your BIOS has been verified/updated to at least v1010 (v1206 preferred), you can begin the steps below.

    Step 1: Set Optimized Defaults
    After entering the BIOS you will want to move all the way to the last tab "EXIT" and select "Load Optimized Defaults".
    Next, save the changes (even if it says nothing was changed), reboot the machine, and re-enter the BIOS.

    ** Note: This step is needed due to the way this motherboard handles the "CSM" & "Secure Boot" features. Failing to do this step will most likely cause you a ton of problems. Disregard this step at your own sanity.

    Step 2: Settings

    Main Tab AI Tweaker Tab
    0_1540224140300_IMG_20181022_111038.jpg 0_1540224203806_IMG_20181022_111101.jpg
    Advanced Tab Advanced Tab - System Agent (SA) Configuration
    0_1540224279547_IMG_20181022_111148.jpg 0_1540225429050_IMG_20181022_111228.jpg
    Advanced Tab - System Agent (SA) Configuration - Graphics Configuration Advanced Tab - System Agent (SA) Configuration - DMI/OPI Configuration
    0_1540225543483_IMG_20181022_111243.jpg 0_1540225600086_IMG_20181022_111257.jpg
    Advanced Tab - System Agent (SA) Configuration - PEG Port Configuration Advanced Tab - PCH Configuration
    0_1540225657359_IMG_20181022_111310.jpg 0_1540225907923_IMG_20181022_111330.jpg
    Advanced Tab - Onboard Devices Configuration Advanced Tab - Onboard Devices Configuration - Serial Port Configuration
    0_1540225999219_IMG_20181022_111359.jpg 0_1540226073105_IMG_20181022_111409.jpg
    Boot Tab Boot Tab - CSM (Compatibility Support Module)
    0_1540226114854_IMG_20181022_111443.jpg 0_1540226185668_IMG_20181022_111459.jpg
    Boot Tab - Secure Boot

    Step 3: Save and Reboot
    Now head back over to the last tab, "Exit" and click the "Save Changes & Reboot". The system should now see your PiMP OS v2.6+ SSD and boot normally.

    ** Note: If in doubt of your settings or you wish to reset them, be sure to restart this process with Step 1. Again, due to the way this motherboard handles the "CSM" & "Secure Boot" features, failing to do this step will most likely cause problems.

    Happy Mining, PiMP's!

  • Staff

    Some more questions

    On the Asus b250 Mining expert motherboard, do you also like Doc use the aux4pin Molax power connectors next to the pcie slots - what do they achieve? Many thanks. Re same psu, is that due to power regulatory? So if I have a 11 card rig can use 2 aux power connectors or should I use all 3?

    Can I use adapters going from the same psu of course as I only have two Molax power cable for my psu

    I do like Asus though, as Up to now have been using the Asus b250f gaming motherboards, but thought with the price of the mining expert being so low now is the time to try it out


    From RoyKiiii (in PiMP Discord)

    I have a lot of b250 mining expert experience. I do use the aux ports, make sure they are all connected to the SAME PSU.

    Its technically meant to provide additionally power to the pcie sockets for when full sized graphics cards are used or when the board is providing power. However, the majority of us already use powered risers, therefore not much power gets used by those auxiliaries. From my understanding its to create a common shared ground for less interference and detection on card fault/removal etc.

    Yes more importantly its to create a common ground. Would definitely install the aux power cords, Because we dont use much power off the board sockets. I'll also mention that its optional, many people dont use them.

    The board is actually 3 sections, each section is separated in a way. That molex creates a common ground to reduce dirty power.

    You should always use all 3 of the molex connections. If you don't have 3, I would just use a molex splitter 1to2.

    Be warned that 11 cards must be a specific arrangement per the pdf slot placement

    So thats for if you're using 3 psu's.
    As you see there isnt much shared between sections. The molex on the left creates a "common ground"

    I haven't tried 11 yet, 6 AMD RX580 is the most ive attempted. I wasnt just able to use the first 6 slots either!

    Theres some guess and check involved, expect to power off and power on many times to get the right combination

    Also dont ever disconnect a riser from a powered board,
    Make sure to turn the main switch off the psu, or unplug the cable completely when removing risers. Sometimes power is stored in the capacitors that can damage the rise or the gpu.

    Roy, thank you so much for your time / knowledge / and expertise really appreciate it. I goto send off a parcel but will be on later.


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