【UM790 Pro】野次馬、自分のステッカーをチラ見してみました(10/26追記アリ)

Finally I got time to open my 3 units. to check the SKUs.
All of them seems to use the old SKU. I mean without the "-A". So I'm not sure it's relevant to the crashing problems since all run fine.
Perhaps all the new SKUs correct something but I don't know what (power circuitry?)
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引用元: https://bbs.minisforum.com/threads/crashing-randomly.2742/page-13#post-33077 

3 台すべて SKU5 とのこと & 3 台すべてデュアルディスプレイ運用

ついでと言ってはなんですが、この方の設定手順も引用しておきます。
ちなみに私もマネてやってみたのですが現状 4000MT/s でしか安定稼働しません。

As many, here on the forum knows, I have 3 of the units running without a glitch and since the last WE all 3 are running with 2 monitors (1080p@60Hz) and running at 5600MTs.
I also solved the "infamous problem" of 2 screens crashes @5600MTs on the exact same unit of one of my friend.
It's important to note I'm not affiliated to MF but I can help others to get the best from their unit.
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First, Yes, as Mini Forum said, many problems are due to bad drivers installations and need reinstall.
Second, I never used the windows package from MF. I prefer to trust the one downloaded from Microsoft.
Many of bad installation had as root causes (if I refer to the unit of my friend and what was discused here) the use of some sort of utilities to install automatically the drivers (driver easy, SDI, Driver Booster, ...). That's a very bad idea since this unit need specific drivers for mobile devices (OEM drivers). So, don't use them and prefer the OEM ones from MF.
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Here is my method I used to install them (this technique is by experience, the most secure) :
BIOS parameters :
Easy : set everything to "Auto" unless you know what you are doing.
You can also try to reset (Clear CMOS reinitialise) all the BIOS settings by disconnecting the power plug from the unit and to push the reset button for at least 30sec.
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Windows install :
1) - Create the Windows install on USB key by using the "Media Creation Tool" from Microsoft (there are many manuals on the web how to use it).
2) - Mandatory (because your unit is based on mobile CPU/chipset) : Go to the UM790 Pro support page and download the driver package : https://www.minisforum.com/new/support?lang=en#/support/page/download/79
3) - Unzip the full package in a folder of your choice on the same usb key you created with "Media Creation Tool"
4) - Boot and Install your windows. Don't connect your unit to internet yet (when asked).
5) - At the end of Windows install, You'll have to install the drivers (previously downloaded from MF) from the USB key in that order :
- The AMD chipset (execute the AMD_Chipset_Software.exe file). When finished, Reboot
- AMD GFX (execute the Install.bat file). When finished, Reboot.
- Intel_AX1675_BT (execute the Install.bat file).
- Intel_AX1675_WIFI (execute the Install.bat file).
- Realtek_Audio (execute the InstallPackage.bat file).
- Realtek_Ethernet (execute the Install.bat file)
6) - (Optional) After a last Windows reboot, You can deactivate all the junk services since I don't see what are really their purposes (but it's up to you) :
- AMD related services
- Killer related services,
- Intel related services,
- Realtek related services.
7) - At this point, you can safely connect to your network (WiFi or Ethernet) and doing some Windows updates (beware of MS drivers updates).
8) - Verify your unit is working like expected.
9) - If everything is OK you can download and install the specific AMD Driver package for this unit from AMD from this link : https://www.amd.com/en/support/apu/amd-ryzen-processors/amd-ryzen-9-processors-radeon-graphics/amd-ryzen-9-7940hs
Note : Don't download and install the Desktop version AMD Driver package else your unit is corrupt and you'll have to reprocess from beginning. (DDU tool can help but it's better to reinstall)
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Hope I forgot nothing and it will help you.
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引用元: https://bbs.minisforum.com/threads/um790-help-to-reinstall-system-and-upgrade-bios.2880/#post-32947