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Motherboard BIOS config for Mining

The information listed below is references to settings obtained from other mining channels.
Update and configure your motherboard at your own risk.
 

The first step to take, first of all: update the motherboard BIOS version to the latest firmware from the manufacturer.
You must extract the BIOS firmware .zip file for the correct motherboard brand/model onto your spare USB drive.

If you still have network connectivity issues or are unable to boot successfully with multiple GPUs, try these steps:

  • When making any changes to your settings, be sure to change them one thing at a time.
  • If you have a lot of GPUs, make sure no GPUs are directly connected to any 16x slots. Risers must be used for all GPUs.
  • Unplug all GPUs except gpu0 (ignore all 1x slots, gpu0 is always the 16x PCI-E slot physically closest to the motherboard CPU socket).
  • If your motherboard has onboard molex or PCI-E connectors, make sure you connect the correct cable to them.
  • Check all your cables again. The first thing to check is your BIOS options. Normally you have to press DELETE as soon as your device is turned on to access the motherboard BIOS. Then go and set as many of these options as you can find:
AMDAMD

AMD Motherboards
Define how many of these options you can find:

  • Set IOMMU to ENABLED
  • Set CSM to DISABLED.
  • Set CPU UNLOCK to ENABLED (this may prevent the CPU temperature from being read correctly)
  • Set COOL AND QUIET to DISABLED
  • Set ONBOARD AUDIO / SOUND to DISABLED
  • Set IEEE1394 to DISABLED
  • Set APU ONBOARD GRAPHICS to DISABLED.
IntelIntel

Intel Motherboards
Define how many of these options you can find:

  • Set VT-d INTEL VIRTUALIZATION to DISABLED
  • Set ONBOARD AUDIO / SOUND (AZALIA) to DISABLED
  • Set IEEE1394 to DISABLED
  • Set SUBSYSTEM / LANES PCI-E to x8 / x4 / x4
  • Set ONBOARD GRAPHICS to DISABLED
  • Set PCI-E GENERATION to GEN2.
  • Save changes and restart. Let the device boot completely with just one GPU, then add more.

Enabling + GPUs

Follow the guide below if you have problems booting with 3 or + GPUs.

ASROCKASROCK

ASROCK Motherboards

Advanced -> Chipset settings -> change TOLUD to 3.5 GB

Advanced -> set "4G Decode" to ENABLED

Advanced -> set Re-Size BAR Support to ENABLED

Set all PCI-E settings to AUTO

ASUSASUS

ASUS Motherboards

Advanced mode (F7) -> "Boot" section -> set "4G Decode" to ENABLED

Set Re-Size BAR Support to ENABLED

In "Boot" -> set FAST BOOT to DISABLED

Under "Advanced" -> Onboard Devices Configuration -> set HD AUDIO CONTROLLER to DISABLED

Under "Advanced" -> PCH Configuration -> set PCI-E Link Speed ​​to GEN2

Note: Some users have reported that by enabling Advanced - Graphics configuration - IGFX Multi-monitor "Enabled" they were able to place more GPUs

Note: Some users have reported that GEN1 works better with ASUS PRIME Z270P. Try this if you have this card.

BiostarBiostar

Biostar Motherboards

Under "Chipset" -> System Agent -> Above 4g ENABLED

Under "Chipset" -> System Agent -> set Re-Size BAR Support to ENABLED

Under "Chipset" -> PCi Express Configuration -> set PCI-E Link Speed ​​to GEN2

Under "Chipset" -> PCH-IO Configuration -> set HD AUDIO to DISABLED

GigabyteGigabyte

Gigabyte Motherboards

Gigabyte has a specific hotsite for their motherboard configurations and provides compatibility information for the number of video cards on their chipsets.
https://www.gigabyte.com/MicroSite/462/mining.html

Update BIOS to F9d version (if chipset is supported)

Enable mining mode in Bios (if there is option in your Bios after upgrade)

Disable CSM option. To do this, leave the Windows 8/10 Features option, the CSM option will appear below

Change Link from PCIe to Gen2

Change display from PCI-e to IGFX

Enable 4G Decoding option

Set Re-Size BAR Support to ENABLED

MSIMSI

MSI Motherboards

Under "Windows OS Configuration" -> set WINDOWS 7 INSTALLATION MODE to DISABLE and FAST BOOT to DISABLED

Under "Integrated Peripherals: -> set HD AUDIO CONTROLLER to DISABLED

Advanced Mode (F7) -> Settings -> Advanced Settings -> PCI-E Subsystem Settings ->

  • set 4G DECODE to ENABLED
  • set Re-Size BAR Support to ENABLED
  • set PEG1 to "GEN 2"
  • set PEG2 to "GEN 2"

Asus Motherboard A320-K/BR

Biosmod to activate 4G Above on Bios - download

#1 Use Rufus to make a bootable flash drive
- Rufus/rufusp paste
- Rufus Options
-- Choose the device
-- Partition type: MBR partition for BIOS or UEFI
-- File system: FAT32 (Default)
-- Cluster size: 4096 bytes (important)
-- Choose Bootable Disk with FreeDOS
It waits to make the total flash, copy all the files of this .zip to it and dee the boot.

#2 Boot from pen drive (without using UEFI option)
command to rotate
- afud3 bios.rom /GAN
Do not turn off or reset the computer, it should take about 10 minutes to check, clean, record and verify the entire bios.

#3 Restart the PC and see the 4g Decoding option enabled. Also, do:
- CMS Disabled
- Multi monitor Enabled

Ihaaaa, your Asus 320M-K BR card will recognize up to 6 GPUs

Use at your own risk!

If you are running this GPU on an Intel motherboard, you may experience boot problems in certain cases. Here are some suggestions:

  • Do not use this GPU in the gpu0 slot. Instead, use another GPU.
  • Use a 16x16x tape riser in the gpu0 slot.

If you find any error or invalid information, contact me!
Discord: https://www.julianocaju.com.br/discord
Telegram: https://t.me/julianocaju

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