3700X cannot reach 4.4Ghz boost clock. Is it my Motherboard? - Page 2 - Overclock.net - An Overclocking Community

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3700X cannot reach 4.4Ghz boost clock. Is it my Motherboard?

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post #11 of 13 (permalink) Old 07-25-2020, 02:46 AM
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Disabling SMT will increase lightly threaded performance(like games) at the expense of productivity type workloads. Disabling SMT on my 3600 allows me to overclock 75-100mhz higher, the 3700x has 4 cores/ccx so greater heat density so the difference would be 100mhz+ more with smt disabled.
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post #12 of 13 (permalink) Old 07-25-2020, 03:05 AM
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I see the same with my 3700X. At best with PBO I see 4.375GHz single core across 3-4 threads using an ASUS C8H board. I prefer to do an all core oc of 4.4GHz with 1.3v on vcore, stable in everything I do (gaming, media, Internet) except handbrake which I only use once or twice a month so no issue dropping clock speed to 4.3GHz for an hour or so to run handbrake. Of course prime95 is a no-go but I don't care about it.

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post #13 of 13 (permalink) Old 08-05-2020, 03:57 AM
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Quote: Originally Posted by Axels11 View Post
I see the same with my 3700X. At best with PBO I see 4.375GHz single core across 3-4 threads using an ASUS C8H board. I prefer to do an all core oc of 4.4GHz with 1.3v on vcore, stable in everything I do (gaming, media, Internet) except handbrake which I only use once or twice a month so no issue dropping clock speed to 4.3GHz for an hour or so to run handbrake. Of course prime95 is a no-go but I don't care about it.
Yup, same procedure for me.


In order to get my 3700X reliably running @4.4 GHz on upto all cores permanently was to set the multiplier to 44 in the BIOS and then reducing the VCore to a comfortable value (Starting at 1,322V and ending up at 1,268V).
I didn't touch/disable any safety features, CStates or really anything else, except the fan curve for a more silent setting after the fact.

If I check the Clockspeeds with CPU-Z or HWMonitor, it seems that the processor is locked at 4.4 GHz all the time.
But if I check more in depth with HWInfo64 I can see that the effective Clocks idle down all the way to 15 MHz when not under load.

Anyways. If you guys wanna check, that was my approach:
---------------------------------------------------------------------------------------------------------------
Specs
CPU: AMD Ryzen 7 3700X
CPU-Cooler: Noctua NH-D15
Mobo: Gigabyte B550 Aorus Pro AC
Memory: 4x8 GB GSkill Aegis 3200/16/18/18/38/56 @1,35V (XMP-Profile)
PSU: Corsair RM750
GPU: GeForce GTX 980 (waiting for next gen)

---------------------------------------------------------------------------------------------------------------
Start:
VCore-set CinebenchR20 7Zip/32MB/1min Furmark/1min 3DMark CPU-Z Timespy

1,322V 5239 P - 81,5°C 74,1°C 77,3°C 2737 P - 66,6°C 5938,5 / 537,7 - 79,8°C 10855 P - 36,47 FPS (4468 GPU)
1,304V 5256 P - 80,0°C 73,1°C 75,8°C 6974 P - 62,3°C 5929,4 / 537,4 - 77,4°C 10822 P - 36,36 FPS (4460 GPU)
1,280V 5297 P - 78,6°C 71,5°C 74,0°C 6973 P - 60,3°C 5924,4 / 537,0 - 75,8°C 10701 P - 35,95 FPS (4443 GPU)
1,250V 5259 P - 75,8°C 70,5°C 72,0°C 6976 P - 60,0°C 5928,2 / 537,1 - 73,9°C 10822 P - 36,36 FPS (4458 GPU)
1,220V PC-CRASH
1,232V Software-CRASH
1,238V Software-CRASH
1,244V Software-CRASH
1,250V Software-CRASH
1,256V 5250 P - 75,3°C 70,0°C 72,3°C 7034 P - 57,5°C 5919,4 / 353,5 - 74,5°C 10829 P - 36,38 FPS (4464 GPU)
1,274V 5265 P - 78,3°C
1,268V 5251 P - 76,9°C 71,0°C 73,6°C - 5925,9 / 538,0 - 73,3°C

End

Temperature Stresstest @1,268V à 10 min each

7Zip Furmark CPU-Z Prime95(large FTTs)
71,8°C 74,5°C 74,9°C 83,8°C
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