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I7-6700k No Longer Hyper-Threads

Go to solution Solved by Dockmaster,

I still have no idea what happened. I did a full reinstall of windows and all is well.

 

 

Hello All,

 

I've got a 6700k that randomly has stopped hyper-threading. It is paired to a MSI Z170-A Gaming M7 with current UEFI. I've confirmed that both the Windows Task Manager and CPUz both show as 4 cores, 4 threads. I've also confirmed in the bios that hyper-threading is enabled as well as cycled the setting to see if that would resolve. Anyone got any ideas on if there is some sort of hardware failure with the chip / motherboard, or if I've just missed something obvious? 

 

Thanks for any help ahead of time!

 

CPUz.PNG

TaskMgr.PNG

BoardandUEFI.jpg

Hyperthreading_Enabled.jpg

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Just now, Dockmaster said:

Hello All,

 

I've got a 6700k that randomly has stopped hyper-threading. It is paired to a MSI Z170-A Gaming M7 with current UEFI. I've confirmed that both the Windows Task Manager and CPUz both show as 4 cores, 4 threads. I've also confirmed in the bios that hyper-threading is enabled as well as cycled the setting to see if that would resolve. Anyone got any ideas on if there is some sort of hardware failure with the chip / motherboard, or if I've just missed something obvious? 

 

Thanks for any help ahead of time!

 

CPUz.PNG

TaskMgr.PNG

BoardandUEFI.jpg

Hyperthreading_Enabled.jpg

Do you have the latest firmware for the chipset 

And when did the problem start occuring

PC: Motherboard: ASUS B550M TUF-Plus, CPU: Ryzen 3 3100, CPU Cooler: Arctic Freezer 34, GPU: GIGABYTE WindForce GTX1650S, RAM: HyperX Fury RGB 2x8GB 3200 CL16, Case, CoolerMaster MB311L ARGB, Boot Drive: 250GB MX500, Game Drive: WD Blue 1TB 7200RPM HDD.

 

Peripherals: GK61 (Optical Gateron Red) with Mistel White/Orange keycaps, Logitech G102 (Purple), BitWit Ensemble Grey Deskpad. 

 

Audio: Logitech G432, Moondrop Starfield, Mic: Razer Siren Mini (White).

 

Phone: Pixel 3a (Purple-ish).

 

Build Log: 

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1 minute ago, _Omega_ said:

maybe clerar the CMOS

 

That as well

PC: Motherboard: ASUS B550M TUF-Plus, CPU: Ryzen 3 3100, CPU Cooler: Arctic Freezer 34, GPU: GIGABYTE WindForce GTX1650S, RAM: HyperX Fury RGB 2x8GB 3200 CL16, Case, CoolerMaster MB311L ARGB, Boot Drive: 250GB MX500, Game Drive: WD Blue 1TB 7200RPM HDD.

 

Peripherals: GK61 (Optical Gateron Red) with Mistel White/Orange keycaps, Logitech G102 (Purple), BitWit Ensemble Grey Deskpad. 

 

Audio: Logitech G432, Moondrop Starfield, Mic: Razer Siren Mini (White).

 

Phone: Pixel 3a (Purple-ish).

 

Build Log: 

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21 minutes ago, TofuHaroto said:

That as well

On the latest System and Chipset Driver from MSI.

 

Just did a clear CMOS, same result.

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Just now, Dockmaster said:

On the latest System and Chipset Driver from MSI.

 

Just did a clear CMOS, same result.

When did it start occuring ?

PC: Motherboard: ASUS B550M TUF-Plus, CPU: Ryzen 3 3100, CPU Cooler: Arctic Freezer 34, GPU: GIGABYTE WindForce GTX1650S, RAM: HyperX Fury RGB 2x8GB 3200 CL16, Case, CoolerMaster MB311L ARGB, Boot Drive: 250GB MX500, Game Drive: WD Blue 1TB 7200RPM HDD.

 

Peripherals: GK61 (Optical Gateron Red) with Mistel White/Orange keycaps, Logitech G102 (Purple), BitWit Ensemble Grey Deskpad. 

 

Audio: Logitech G432, Moondrop Starfield, Mic: Razer Siren Mini (White).

 

Phone: Pixel 3a (Purple-ish).

 

Build Log: 

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1 minute ago, unclewebb said:

Open msconfig and make sure Number of processors is not checked. Push OK and reboot.

Confirmed, not checked.

msconfiig.PNG

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Just now, TofuHaroto said:

When did it start occuring ?

Whoops, sorry. Noticed yesterday, however, I know Hyper-Threading was working about two weeks ago when I rebuilt Win10.

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4 minutes ago, ShrimpBrime said:

Try disable virtualization.

Disabled, no change.

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3 minutes ago, Dockmaster said:

Disabled, no change.

Have you installed XTU by any chance?

- If it ain't broken, don't fix it! - - Your post codes and beep codes in the drop down below -

Competitive Benching Team - Warp9-Systems 

Save the old OC forums just by reading old school tec

https://forums.extremeoverclocking.com/index.php

They have the best F@H stats too. 

Spoiler

 

 

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Just now, ShrimpBrime said:

Have you installed XTU by any chance?

Negative.

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Just now, Dockmaster said:

Negative.

OK. I just opened mine to see if there was anything for HT, there does not look to be.

- If it ain't broken, don't fix it! - - Your post codes and beep codes in the drop down below -

Competitive Benching Team - Warp9-Systems 

Save the old OC forums just by reading old school tec

https://forums.extremeoverclocking.com/index.php

They have the best F@H stats too. 

Spoiler

 

 

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Clear cmos and update the bios.

There is no way to turn on HT in windows.

The only option is to force 8 cores vs unchecking number of processors.

 

To find out if windows actually sees the threads...

 

Open CMD type wmic and hit enter.

The type 

CPU Get NumberOfCores,NumberOfLogicalProcessors /Format:List

hit enter.

Will show number of cores and logical processors.

If it says 4 and 4, it's a bios issue. 

 

GL

- If it ain't broken, don't fix it! - - Your post codes and beep codes in the drop down below -

Competitive Benching Team - Warp9-Systems 

Save the old OC forums just by reading old school tec

https://forums.extremeoverclocking.com/index.php

They have the best F@H stats too. 

Spoiler

 

 

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13 minutes ago, ShrimpBrime said:

Clear cmos and update the bios.

There is no way to turn on HT in windows.

The only option is to force 8 cores vs unchecking number of processors.

 

To find out if windows actually sees the threads...

 

Open CMD type wmic and hit enter.

The type 

CPU Get NumberOfCores,NumberOfLogicalProcessors /Format:List

hit enter.

Will show number of cores and logical processors.

If it says 4 and 4, it's a bios issue. 

 

GL

I'm assuming you meant 'wmic cpu get...'

 

wmic.PNG.78c0f11bfb01a01b4eb1ca5ebe37d23f.PNG

 

That being said, I think this has to be a Windows OS issue...not sure how.

I booted up Ubuntu from a live USB and ran a few commands on that side. lscpu does infact show 4 cores and 2 threads per core. htop not only sees the hyper-threaded cores, but also reports work being done by them. 

 

I've reached the end of my Google-Foo. Does anyone know where/how Windows would be not seeing these, when clearly the Bios / *nix are?

 

lscpu.thumb.jpg.f43d73e2c55a355502f32ec1bc502e0e.jpg

htop.thumb.png.4998d3b20604ff52504b369f33da450b.png

 

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Well that is interesting.

 

I don't do Windows Diagnostics. I believe you are in the wrong section, this is Hardware diagnostics thread. 

 

I am sorry.

- If it ain't broken, don't fix it! - - Your post codes and beep codes in the drop down below -

Competitive Benching Team - Warp9-Systems 

Save the old OC forums just by reading old school tec

https://forums.extremeoverclocking.com/index.php

They have the best F@H stats too. 

Spoiler

 

 

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3 minutes ago, Dockmaster said:

Even more bizarre. Device Manager sees all '8' cores.

DeviceManager.PNG.7fb7923c32eebcaf68e759baa1849007.PNG

This is a stupid question but do you have the latest windows update installed

PC: Motherboard: ASUS B550M TUF-Plus, CPU: Ryzen 3 3100, CPU Cooler: Arctic Freezer 34, GPU: GIGABYTE WindForce GTX1650S, RAM: HyperX Fury RGB 2x8GB 3200 CL16, Case, CoolerMaster MB311L ARGB, Boot Drive: 250GB MX500, Game Drive: WD Blue 1TB 7200RPM HDD.

 

Peripherals: GK61 (Optical Gateron Red) with Mistel White/Orange keycaps, Logitech G102 (Purple), BitWit Ensemble Grey Deskpad. 

 

Audio: Logitech G432, Moondrop Starfield, Mic: Razer Siren Mini (White).

 

Phone: Pixel 3a (Purple-ish).

 

Build Log: 

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8 minutes ago, Dockmaster said:

Even more bizarre. Device Manager sees all '8' cores.

DeviceManager.PNG.7fb7923c32eebcaf68e759baa1849007.PNG

Are you running Windows Security with Core Isolation enabled?  

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17 minutes ago, TofuHaroto said:

This is a stupid question but do you have the latest windows update installed

Fully up to date.

 

12 minutes ago, Billbill said:

Are you running Windows Security with Core Isolation enabled?  

I am not. I also just confirmed I am not.

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8 minutes ago, Dockmaster said:

Fully up to date.

 

I am not. I also just confirmed I am not.

Just recently I had received some updates through Windows update according to my series of Intel CPU.  This may or may not have been the issue.  Check with both Intel corp and Windows.  

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I still have no idea what happened. I did a full reinstall of windows and all is well.

 

 

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12 minutes ago, Dockmaster said:

I still have no idea what happened. I did a full reinstall of windows and all is well.

 

 

some people don't think windows be the way it is

 

but it do

Before you reply to my post, REFRESH. 99.99% chance I edited my post. 

 

My System: i9-10900KF 5.1-5.3ghz @ 1.375v // Corsair iCUE H150i Elite Capellix // Gigabyte Z590 Aorus Elite AX // 32GB (4x8) Crucial Ballistix Elite DDR4 4000/CL18 // ASUS RTX 3080 TUF OC // Corsair 5000D Airflow // Corsair SP120 RGB Pro x7 // Seasonic Focus Plus Gold 850w //1TB ADATA XPG SX8200 Pro/1TB Samsung 860 EVO/2TB Seagate 7200RPM Hard Drive // Displays: LG Ultragear 32GP83B/Lenovo L24Q-30/Lenovo L24Q-30 // Glorious GMMK TKL // Corsair Harpoon Wireless // Corsair H70 Gaming Headset

 

Wife's System: i9-9900K Stock // Cryorig H7 Quad Lumi // Gigabyte Z390M Gaming // 32GB (4x8) Corsair Vengeance LED DDR4 3200 // ASUS KO RTX 3070 // Cooler Master Master Box NR400 ODD // Seasonic Focus Plus Gold 850w // 1TB ADATA XPG SX8200 Pro/1TB Samsung 860 EVO/4TB Western Digital HDD // Displays: LG Ultragear 27GL83A-B/AOC AGON AG241QX/ASUS VG248QE // Corsair K68 Mechanical Keyboard // Corsair Harpoon Wireless // LG BDRW // NexStar 5.25" USB 3 Enclosure

 

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Son's System: i7-8700 // Cryorig H7 Quad Lumi // ASRock Z370 Extreme 4 // 16GB (2x8) GeIL Potenza DDR 3200 // EVGA XC RTX 3060 // Corsair 275R Airflow // EVGA Supernova G5 650W Gold // 525GB Crucial MX300/1TB WD SN550 // Display: ACER Nitro VG240Y PBiip / Dell P2417H // Corsair K60 Pro SE // Logitech G203

 

Daughter's System: i5-9400 // Cooler Master i71c // MSI H310M Pro VDH-Plus // 8GB (2x4) Leven DDR4 2666 (2400) // Zotac GTX 1060 3GB Mini // DarkFlash Micro ATX White // Corsair CX550 // 480GB PNY CS1311 SSD/2TB Seagate HDD // Display: ASUS VG245H // Redragon TKL Mechanic Keyboard + Mouse

 

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