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Dr debug CPU temp monitoring is not what you think

Printed From: ASRock.com
Category: Technical Support
Forum Name: AMD Motherboards
Forum Description: Question about ASRock AMD motherboards
URL: https://forum.asrock.com/forum_posts.asp?TID=7306
Printed Date: 05 Feb 2025 at 6:54pm
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com


Topic: Dr debug CPU temp monitoring is not what you think
Posted By: HaveNoName
Subject: Dr debug CPU temp monitoring is not what you think
Date Posted: 15 Jan 2018 at 3:54pm
" rel="nofollow - No reason not to be excited with Dr debug feature to allow check on cpu temp in all times without the need of a 3rd party software that would consume system resources right ? Wrong !
How did i find out : After a CMOS reset i benchmarked my CPU  and in my surprise and awe it tested higher than before, although my RAM was running on 2133Mhz instead of 2933 that's usually running. My first guess was that it had something to do with the lower latency or lower voltage of RAM. After ruling that out my second guess was Dr debug and that was it .

Dr debug CPU temp monitoring taxes CPU the whooping amount of 3% alot more than any OS software would have .



MB: Fatal1ty X370 Gaming X
CPU: Ryzen 5 1600





Replies:
Posted By: MisterJ
Date Posted: 16 Jan 2018 at 12:26am
" rel="nofollow - HaveNoName, please tell us how you came to this conclusion?  Thanks and enjoy, John.


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Fat1 X399 Pro Gaming, TR 1950X, RAID0 3xSamsung SSD 960 EVO, G.SKILL FlareX F4-3200C14Q-32GFX, Win 10 x64 Pro, Enermx Platimax 850, Enermx Liqtech TR4 CPU Cooler, Radeon RX580, BIOS 2.00, 2xHDDs WD


Posted By: zlobster
Date Posted: 16 Jan 2018 at 12:27am
" rel="nofollow - I always thought Dr.Debug was the on-board diagnostic LED! Is OP referring to some piece of software?


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1700X ZP-B1 (stock); X370 Taichi (UEFI 3.10); 16GB F4-3200C14-8GFX XMP; 256GB 960 EVO; RX 580 NITRO+ 8GB


Posted By: HaveNoName
Date Posted: 16 Jan 2018 at 6:49am
" rel="nofollow - I'm aware that it's a on-board diagnostic LED. Also i am aware it should not tax CPU at all. However benchmark is clear it does makes CPU 3% slower. You can test it on your system maybe you'll get the same results . Personally I'm not surprised at all considered how bugged my MB is. For example BIOS shouldn't consume any CPU power also right ? But judging by the CPU temp while I'm on BIOS it works nearly on 100%.
Aside of the bugs tho my MB is great and my system rocks .


Posted By: zlobster
Date Posted: 16 Jan 2018 at 4:55pm
Honestly, I never knew that I can make Dr. Debug show my temps. Shocked


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1700X ZP-B1 (stock); X370 Taichi (UEFI 3.10); 16GB F4-3200C14-8GFX XMP; 256GB 960 EVO; RX 580 NITRO+ 8GB


Posted By: jmmec
Date Posted: 17 Jan 2018 at 10:17am
Wow, surprised, but you're correct.

I have an X399 Taichi (not overclocked except for RAM at 2933) and had Dr. Debug temperature display enabled.  I get a 2.6% performance degradation in Cinebench if UEFI is configured to display temperature in Dr. Debug.   I didn't test other benchmarks.

I set it back to "Disabled" since I really don't need the temperature display.


Posted By: zlobster
Date Posted: 17 Jan 2018 at 6:45pm
" rel="nofollow - How do you enable it in first place? Is it some UEFI setting? Some utility?


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1700X ZP-B1 (stock); X370 Taichi (UEFI 3.10); 16GB F4-3200C14-8GFX XMP; 256GB 960 EVO; RX 580 NITRO+ 8GB


Posted By: NorySS
Date Posted: 04 Feb 2018 at 4:02am
Its under Advance/ South Bridge /On board Debug display


Posted By: orionbg
Date Posted: 05 Feb 2018 at 1:04pm
That's very interesting... I'll test it later today for sure.

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Asrock X399 Taichi, AMD Threadripper 1950X, 32GB G.SKILL TridentZ RGB 3200MHz,
256GB Samsung PM961 nvme, 512GB Samcung 850 EVO, 512GB Intel 5400S,
GTX1080Ti FE, Lian-Li PC-O11WGX case, Custom W.Loop


Posted By: orionbg
Date Posted: 06 Feb 2018 at 2:10am
I've tested this and can confirm that at least in CB15, there is about 50 points difference...

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Asrock X399 Taichi, AMD Threadripper 1950X, 32GB G.SKILL TridentZ RGB 3200MHz,
256GB Samsung PM961 nvme, 512GB Samcung 850 EVO, 512GB Intel 5400S,
GTX1080Ti FE, Lian-Li PC-O11WGX case, Custom W.Loop


Posted By: howardstern
Date Posted: 07 Feb 2018 at 4:14am
I can also confirm a 50 point increase CINEBENCH. Nice job in finding this little nugget. 

I did test a few game benchmarks and did not really see a boost in performance but I am glad to have the 50 points back in CINEBENCH. 

Thank you! 


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Taichi
Ryzen 1800X @ 4G
EVGA GTX 1080
Corsair H100i AIO and full tower 780T
GSkill FlareX 3200
SB ZX
Windows 10


Posted By: howardstern
Date Posted: 07 Feb 2018 at 4:25am
I stand corrected a while back i dropped from 52 frames to 47 in the metro_benchmark.exe. I could not figure out what changed. I ran it today and I am back to 52 with 3 runs. So it could have an affect on games too. 

METRO REDUX BENCHMARK RESULTS
2/6/2018 3:21:07 PM
Preset 0

Options: Resolution: 2560 x 1440; Quality: Very High; SSAA: On; Texture filtering: AF 4X; Motion Blur: Off; Tesselation: Very High; VSync: Off; Advanced PhysX: Off;

Average Results
  • Average Framerate: 52.00
  • Max. Framerate: 110.51
  • Min. Framerate: 20.19


-------------
Taichi
Ryzen 1800X @ 4G
EVGA GTX 1080
Corsair H100i AIO and full tower 780T
GSkill FlareX 3200
SB ZX
Windows 10



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