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Skylake 6700k catastrophe, CPU might be dead

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Joined
Dec 9, 2016
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Motherboard
ASUS Prime Z490-A
CPU
i9-10850K
Graphics
RX 6950 XT
I'm posting this in hopes someone has good news for me, because I think my new CPU is dead.

I was using this post as a guide: https://www.tonymacx86.com/threads/success-10-12-3-asus-z170-pro-gaming-i5-6500-970gtx.201607/

Starting 2 days ago, everything was running well, except I couldn't get the temperature kext's to work, and I had a small issue with hissing noise coming from the standard audio out ports. Today I spent several hours trying to troubleshoot the hissing audio port noise (using latest VoodooHDA kext), and trying to see if any temperature monitor kexts would work (none did, using https://sourceforge.net/projects/hwsensors/), and installing various basic software (programming, web browser, readers, helper apps). Hardware wise and mostly software wise, everything was running perfectly (no kernel panics, crashes). I shut the computer off to run an errand and when I returned a few hours later, when I turned it on it would not even get to the POST screen. The fans and lights all go on for about 5-10 sec, then it restarts. Troubleshooting the motherboard led indicator lights showed its a CPU issue. I took the heatsync and CPU off, made sure it had the right amount of thermal paste, the cpu was normal, no discolored spots, cleaned the old thermal paste off and put new on, and reattached the heat sync, and tried starting up but had the same issue. Still not even a POST screen. It makes no sense to me, a few hours ago before I shut the computer down everything was working. What are my next steps to troubleshoot something like this?

Another note, the ONLY change I made to the guide was I selected the 6700k iMac16,2 SMBIOS because of the 6700k support. Aside from that, the guide and files attached to it worked great.

OS: Sierra 10.12.2
CPU: 6700k
Video card: None
Heat sink: Noctua NH-D15 (https://www.amazon.com/gp/product/B00L7UZMAK/?tag=tonymacx86com-20)
Motherboard: ASUS Z170 Pro Gaming/AURA (https://www.amazon.com/gp/product/B01J8QQD98/?tag=tonymacx86com-20)

Edit: I found this link: http://www.gamespot.com/forums/pc-mac-linux-society-1000004/did-my-cpu-or-motherboard-die-26806282/ that suggests it could be an issue with the motherboard and not the CPU. I took out the RAM and there was no beepeing, same symptoms of rebooting after 5-10 sec.
 
Last edited:
The Rules said:
Profiles need to contain at least your primary system to assist others with helping you

If you cannot even POST then try a CMOS reset.
 
I had similar problems with my GA-H170N-Wifi mobo. A CMOS resed fixed the problem only temporarly, I could boot but after a few boots I the same thig occured.
The fix was to update the BIOS to F20, since then this strange -- even no POST screen -- thing is gone.



I'm posting this in hopes someone has good news for me, because I think my new CPU is dead.

I was using this post as a guide: https://www.tonymacx86.com/threads/success-10-12-3-asus-z170-pro-gaming-i5-6500-970gtx.201607/

Starting 2 days ago, everything was running well, except I couldn't get the temperature kext's to work, and I had a small issue with hissing noise coming from the standard audio out ports. Today I spent several hours trying to troubleshoot the hissing audio port noise (using latest VoodooHDA kext), and trying to see if any temperature monitor kexts would work (none did, using https://sourceforge.net/projects/hwsensors/), and installing various basic software (programming, web browser, readers, helper apps). Hardware wise and mostly software wise, everything was running perfectly (no kernel panics, crashes). I shut the computer off to run an errand and when I returned a few hours later, when I turned it on it would not even get to the POST screen. The fans and lights all go on for about 5-10 sec, then it restarts. Troubleshooting the motherboard led indicator lights showed its a CPU issue. I took the heatsync and CPU off, made sure it had the right amount of thermal paste, the cpu was normal, no discolored spots, cleaned the old thermal paste off and put new on, and reattached the heat sync, and tried starting up but had the same issue. Still not even a POST screen. It makes no sense to me, a few hours ago before I shut the computer down everything was working. What are my next steps to troubleshoot something like this?

Another note, the ONLY change I made to the guide was I selected the 6700k iMac16,2 SMBIOS because of the 6700k support. Aside from that, the guide and files attached to it worked great.

OS: Sierra 10.12.2
CPU: 6700k
Video card: None
Heat sink: Noctua NH-D15 (https://www.amazon.com/gp/product/B00L7UZMAK/?tag=tonymacx86com-20)
Motherboard: ASUS Z170 Pro Gaming/AURA (https://www.amazon.com/gp/product/B01J8QQD98/?tag=tonymacx86com-20)

Edit: I found this link: http://www.gamespot.com/forums/pc-mac-linux-society-1000004/did-my-cpu-or-motherboard-die-26806282/ that suggests it could be an issue with the motherboard and not the CPU. I took out the RAM and there was no beepeing, same symptoms of rebooting after 5-10 sec.
 
I had a similar problem with the ASUS z170i yesterday. Reset CMOS, everything working again. Ocasionally getting the "Overclocking failed - Press F1" error on boot.

Definitely not getting ASUS boards anymore, this one is riddled with bugs. Even when booting windows sometimes my Keyboard isnt recognized and I have to unplug und plug it back in.
 
I had similar problems with my GA-H170N-Wifi mobo. A CMOS resed fixed the problem only temporarly, I could boot but after a few boots I the same thig occured.
The fix was to update the BIOS to F20, since then this strange -- even no POST screen -- thing is gone.

Thanks!! CMOS was the issue.
 
I had a similar problem with the ASUS z170i yesterday. Reset CMOS, everything working again. Ocasionally getting the "Overclocking failed - Press F1" error on boot.

Definitely not getting ASUS boards anymore, this one is riddled with bugs. Even when booting windows sometimes my Keyboard isnt recognized and I have to unplug und plug it back in.

I just updated the firmware and its running smoothly so far.
 
I had a similar problem with the ASUS z170i yesterday. Reset CMOS, everything working again. Ocasionally getting the "Overclocking failed - Press F1" error on boot.

I shut the computer off to run an errand and when I returned a few hours later, when I turned it on it would not even get to the POST screen. The fans and lights all go on for about 5-10 sec, then it restarts. Troubleshooting the motherboard led indicator lights showed its a CPU issue.

I have the sme same problem with ASUS Z170 Pro... 1st reset CMOS = led indicator lights showed its a CPU issue. 2nd reset CMOS = led indicator lights showed its a VGA card issue. After 3x CMOS reset and many hard reset display start with "Overclocking failed - Press F1 error on boot"....

Until 1 week later, i haven't any problems, Hackintosth works 2 months great.

Any idea to fix it????
 
I have the sme same problem with ASUS Z170 Pro... 1st reset CMOS = led indicator lights showed its a CPU issue. 2nd reset CMOS = led indicator lights showed its a VGA card issue. After 3x CMOS reset and many hard reset display start with "Overclocking failed - Press F1 error on boot"....

Until 1 week later, i haven't any problems, Hackintosth works 2 months great.

Any idea to fix it????

I didn't overclock mine yet. All I did was reset the CMOS (said to short the 2 pins during a reboot), waited for it to reboot, then immediately updated the firmware from the website. According to their website (https://www.asus.com/us/Motherboards/Z170-PRO-GAMING/HelpDesk_Download/) the latest bios version is 3016 released on 12/29/2016. If you haven't yet upgraded please do as its fixed all my problems so far.
 
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