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is this how you turn off SMT on ryzen ?

hey guys new to pc i have ryzen 5 3600 is this how you turn off SMT?

 

is turning off SMT will harm your cpu ?

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I'd do it in the BIOS instead of Ryzen Master.

It's not harmful, just probably not really beneficial either.

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7 minutes ago, wassil said:

is turning off SMT will harm your cpu ?

Not harmful 

But pointless.

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13 hours ago, Mateyyy said:

I'd do it in the BIOS instead of Ryzen Master.

what will be the diffrence ?

 

13 hours ago, Mateyyy said:

just probably not really beneficial either.

i saw videos that there is fps gain in gaming i'll test it and see

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13 hours ago, TofuHaroto said:

Not harmful 

But pointless.

100% true just tested i even had stutters when the cpu hit 100% usage

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6 minutes ago, wassil said:

what will be the diffrence ?

Lower performance in general of anything multithreaded. 

 

7 minutes ago, wassil said:

saw videos that there is fps gain in gaming i'll test it and see

Very few titles. 

 

You get lower performance in most titles. 

 

This includes stuttering in newer ones. Mostly due to lack of threads. 

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53 minutes ago, wassil said:

what will be the diffrence ?

 

i saw videos that there is fps gain in gaming i'll test it and see

The performance boost you may see at all will be very hit or miss at best. You're likely not going to see an improvement in most of your games, and you might even see a decrease in performance. The only game I have where disabling smt worked was Hitman 2. 

 

 

 

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Disable SMT in BIOS, also check that the desired game actually benefit before doing it. HAVE FUN! O3O

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Case: Cooler Master HAF XB Evo Black / Case Fan(s) Front: Noctua NF-A14 ULN 140mm Premium Fans / Case Fan(s) Rear: Corsair Air Series AF120 Quiet Edition (red) / Case Fan(s) Side: Noctua NF-A6x25 FLX 60mm Premium Fan / Case Fan VRM: SUNON MagLev KDE1209PTV3 92mm / Controller: Sony Dualshock 4 Wireless (DS4Windows) / Cooler: Cooler Master Hyper 212 Evo / CPU: AMD FX-8370 (Base: @4.4GHz | Turbo: @4.7GHz) Black Edition Eight-Core (Global Foundries 32nm) / Display: ASUS 24" LED VN247H (67Hz OC) 1920x1080p / GPU: MSI GeForce GTX 970 4GD5 OC "Afterburner" @1450MHz (T.S.M.C. 28nm) / GPU: Gigabyte Radeon RX Vega 56 Gaming OC @1501MHz (Samsung 14nm FinFET) / Keyboard: Logitech Desktop K120 (Nordic) / Motherboard: MSI 970 GAMING, Socket-AM3+ / Mouse: Razer Abyssus 2014 / PCI-E: ASRock USB 3.1/A+C (PCI Express x4) / PSU: EVGA SuperNOVA G2, 850W PSU / RAM 1, 2, 3 & 4: Corsair Vengeance DDR3-1866MHz CL8-10-10-28-37-2T (4x4GB) 16.38GB / Operating System 1: Windows 10 Home / Sound: Zombee Z300 / Storage 1: Samsung 850 EVO 500GB SSD (x2) / Storage 2: Seagate® Barracuda 2TB HDD / Storage 3: Seagate® Desktop 2TB SSHD / Wi-fi: TP-Link TL-WN951N 11n Wireless Adapter

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  • 11 months later...

Kind of an old post BUT... It is absolutely NOT pointless in certain situations. Infact, if you're asking how to disable it there is one VERY good reason you may be asking.

Steinberg's Cubase and Nuendo (from v6 on) have a feature called ASIO-Guard. ASIO-Guard is meant to boost performance but, it often conflicts with Intel's Hyperthreading and AMD's SMT. If you're using a PC, you're able and may be looking to disable SMT if:

You're using what seems like a rather light workload for your CPU yet you keep getting clicks, pops, or even freezing due to overloading on the VST meter. If you're experiencing issues due to the VST meter in Nuendo/Cubase showing spikes/peaking/overload but you've checked your CPU and RAM performance in task manager and it shows your CPU usage nowhere near 100%... You'll need to disable SMT/Hyperthreading in BIOS.

Take it from me. I was experiencing this issue for months when I first updated from Nuendo 4 up to v9. It forced me to close the studio down for awhile because I had no idea what was causing it. The CPU exceeded the requirements, boosted RAM past the 64gb everyone says is the max any DAW will use, ran performance tests  in other DAWs that far exceeded the workload in Nuendo; yet the issue remained. My workaround came by building a network of servers to offload plugin processing but, as soon as I started patching out through hardware audio processors (analog EQs/compressors, etc), the issue came right back.

The reason is a conflict between ASIO-guard and SMT/Hyperthreading. Disable it, if you have this issue with Nuendo or Cubase.

Hopefully posting this response will help anyone Googling this problem.

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