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Asus B250 Mining Expert BIOS Settings (PiMP OS v2.6+)
** 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.
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
Settings Main Tab AI Tweaker Tab Advanced Tab Advanced Tab - System Agent (SA) Configuration Advanced Tab - System Agent (SA) Configuration - Graphics Configuration Advanced Tab - System Agent (SA) Configuration - DMI/OPI Configuration Advanced Tab - System Agent (SA) Configuration - PEG Port Configuration Advanced Tab - PCH Configuration Advanced Tab - Onboard Devices Configuration Advanced Tab - Onboard Devices Configuration - Serial Port Configuration Boot Tab Boot Tab - CSM (Compatibility Support Module) 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!
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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