O/C Story with Rookie BIOS Mistake

[Sartanius 399]

My home-built PC (see sig) has been humming along without a problem for a year now and I couldn't be happier with P3D performance, especially now that I've added the 2080Ti.  However, although I knew better, I stopped thinking and went ahead and updated my BIOS since I was still running the out-of-the-box version, which was current when I purchased the MB.  Of course I hadn't saved my current O/C profile in the BIOS, so when the BIOS update finished I discovered my O/C profile had been restored back to default. I knew how I'd originally reached that O/C profile (using ASUS Ai Suite), so I went back to try that again, and did achieve very stable performance at 5.0GHz, but my CPU temps in P3D were significantly higher than before the BIOS update.  Clearly I hadn't arrived at my earlier O/C settings and now had higher core voltage than before, and my fans were letting me know.

I found out quickly that much of my higher temp problem was due to the BIOS reverting back to HT On.  When I turned HT back off I saw a significant drop (5-9C) under peak loads, but temps were still higher than what I'd had previously.

After some research I discovered the Intel Extreme Tuning Utility and used it to apply a 0.100v Core Voltage Offset, and voila... my temps are back inline (avg 71C) when in a heavily loaded P3D session with the FSL A320 and 3rd party sceneries. I completed a 7 hour flight with zero problems. I am searching now to see how to apply that same voltage offset within the ASUS BIOS so I don't need to use Intel's utility.

Thought I'd share since maybe someone can benefit from my mistake.  Absolutely my own fault, so hold the snark if you can.  Fortunately, all is now well again with stable performance, but I would still like to get all the tweaks done in the ASUS BIOS.

 

Edited December 30, 2018 by dmiannay

[martin-w 3,235]

Quote

Thought I'd share since maybe someone can benefit from my mistake.  Absolutely my own fault, so hold the snark if you can.  Fortunately, all is now well again with stable performance, but I would still like to get all the tweaks done in the ASUS BIOS.

 

With HT off you will require less voltage. 

Your settings will already be in the BIOS. Ai Suite sets those settings in the BIOS for you. I'm presuming Extreme Tuning Utility does the same. If you have a look in the BIOS you will see the settings. If you uninstall those utilities the BIOS settings should remain. Save the profile though just in case ETU doesn't work how I believe it does. 

 

In case you need a guide...

 

 

Edited December 30, 2018 by martin-w

[Sartanius 399]

T

23 minutes ago, martin-w said:

In case you need a guide...

Thanks a ton, Martin.  I certainly understand HT requires more voltage, but wasn't sure which ASUS BIOS setting to change to apply the same -0.100 voltage offset I was doing in IETU.  I'll check out the video... again, thanks.