Windows 10 with P67 Extreme6 RevB2 - BSODs

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   I had this problem and my minidump showed cfosspeed6.sys was the problem.  I uninstalled the Asrock XFast LAN utility and my problem seems to have gone away.

Asrock P67 Extreme6 with i7-2600K, bios P1.60
Clean Windows 10 Home x64 install, March 15 2021

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pauljva Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 17 Mar 2021 Status: Offline Points: 15	Post Options Post Reply Quote pauljva Report Post Thanks(0) Quote Reply Posted: 17 Mar 2021 at 8:45am
	I had this problem and my minidump showed cfosspeed6.sys was the problem. I uninstalled the Asrock XFast LAN utility and my problem seems to have gone away. Asrock P67 Extreme6 with i7-2600K, bios P1.60 Clean Windows 10 Home x64 install, March 15 2021

Angilas Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 04 Mar 2021 Status: Offline Points: 2	Post Options Post Reply Quote Angilas Report Post Thanks(0) Quote Reply Posted: 04 Mar 2021 at 9:23pm
	I forget to say Windows 20H1 and 20H2 same not work only Bluescreens get

Angilas Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 04 Mar 2021 Status: Offline Points: 2	Post Options Post Reply Quote Angilas Report Post Thanks(0) Quote Reply Posted: 04 Mar 2021 at 9:20pm
	Hello all.. Same Problem here with a Asrock Fatal1ty P67 Professional Windows do not run after 2004 Version only Bluesreens get not usetable I have try all no way. Looks Windows 10 have make here a big Error in the new Core ans much p67 Board get same Problem Windows 10 only works fine to Version 1909 Any have contact ASRock Support or Microsoft ?

smuchen Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 29 Jan 2021 Status: Offline Points: 1	Post Options Post Reply Quote smuchen Report Post Thanks(0) Quote Reply Posted: 29 Jan 2021 at 5:54am
	Looks like same problem happens with all P67 chipsets motherboards. Same issue on my AsRock P67 PRO3 SE and also didn't find a solution. But it all started, when I bought sh*ttiest Zalman VE350 external hard drive. Before that, there was not such a problem, but also something obv broke in my motherboard, cuz it wont start with the CMOS battery now. Could it be actual BIOS problem?
	smuchen

MichelvH Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 27 Nov 2020 Status: Offline Points: 3	Post Options Post Reply Quote MichelvH Report Post Thanks(0) Quote Reply Posted: 04 Dec 2020 at 9:48pm
	I have the exact same thing and haven't found the solution yet. Seems to be an issue with one of the drivers. In this case I think it's the Intel chipset driver set, but there is no newer version than the one I have installed. I think it's time to sunset this motherboard and go look for a new one...

Qwertikator Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 04 Dec 2020 Location: Russia Status: Offline Points: 5	Post Options Post Reply Quote Qwertikator Report Post Thanks(0) Quote Reply Posted: 04 Dec 2020 at 5:23pm
	So the Windows 10 installation problem on P67 chipset can be resolved with earlier versions - 1909 and earlier. But fake 100% CPU load... for example, i have latest BIOS 2.10 for my M/B P67 Extreme4 revB2 and problem is still there...

Qwertikator Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 04 Dec 2020 Location: Russia Status: Offline Points: 5	Post Options Post Reply Quote Qwertikator Report Post Thanks(0) Quote Reply Posted: 04 Dec 2020 at 5:14pm
	Aha! This like! Soooo, as we see, system is idle! [url=https://ibb.co/JF1pbHm][/url]

Qwertikator Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 04 Dec 2020 Location: Russia Status: Offline Points: 5	Post Options Post Reply Quote Qwertikator Report Post Thanks(0) Quote Reply Posted: 04 Dec 2020 at 5:11pm
	Saint cow... how it works!?!? [url=https://ibb.co/Stc1jD0][/url]

Qwertikator Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 04 Dec 2020 Location: Russia Status: Offline Points: 5	Post Options Post Reply Quote Qwertikator Report Post Thanks(0) Quote Reply Posted: 04 Dec 2020 at 5:02pm
	Here is the thread about fake 100% CPU loading: [URL= ]https://answers.microsoft.com/en-us/windows/forum/windows_10-other_settings/why-is-windows-10-final-build-showing-100-cpu/493e1afa-8fce-4779-8962-8e21dfe57df9?auth=1&page=1[/URL]

Qwertikator Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 04 Dec 2020 Location: Russia Status: Offline Points: 5	Post Options Post Reply Quote Qwertikator Report Post Thanks(0) Quote Reply Posted: 04 Dec 2020 at 4:59pm
	Long time using Win 7 x64 Ult on Asrock P67 Extreme4 revB2 with no problems. Few days also ago tried to install Win 10 x64 Pro 20H2 and... constant BSOD KMODE_EXCEPTION_NOT_HANDLED!!! Tried different 20H2 install source (official, non-official) - same BSOD. Tried 2004 version - same BSOD. "Out-Of-The-Box"! Constant BSOD! BTW, in safe mode (and it's very strange) OS works stable. I've searched many forums, even MS site. Then in some thread on MS forum I've found message with information that last versions of Win10 can't be installed on older hardware configurations and decided to try lesser version. Then I've tried to install 1909 version and it works! No BSOD. But )) There is some strange thing... CPU load showing always 100% for all 4 cores (i have i5-2500k on MB) and CPU clock showing insane values, like 43567890 GHz, while system mainly is responsive.