cpu 0.79Ghz Stuck zzzzz...

[Sushil K]

Hey so I've had my gaming laptop for awhile, and every time I take out the charger, my cpu drops to 0.79ghz instantly and won't go above that. My laptop is a Dell G7 7588. Its equipped with a intel I7-8750H and has a GTX 1060 Max Q, along with 8gb ram. Dell support is useless and I haven't really been able to find any solutions. 

[Adorable Cat]

Does the laptop go into a battery saving mode when it's unplugged?

 

[rares495]

That's the normal behavior of a modern laptop. Check the power settings and switch to high performance.

[nick name]

In your Windows power plan check that Maximum Processor State isn't set below 100%.  And check the applicable profile that would be active when the laptop isn't plugged in.  

[Sushil K]

45 minutes ago, rares495 said:

That's the normal behavior of a modern laptop. Check the power settings and switch to high performance.

How is it normal??? I can barely watch videos and everything is slow af. Whats the point of a laptop if you have to plug it in at all times. And why would it be capped at 0.79? Is there a way I can raise this to atleast 2ghz?

[Sushil K]

48 minutes ago, Adorable Cat said:

Does the laptop go into a battery saving mode when it's unplugged?

 

no, I have it go to maximum performance.

[Sushil K]

23 minutes ago, nick name said:

In your Windows power plan check that Maximum Processor State isn't set below 100%.  And check the applicable profile that would be active when the laptop isn't plugged in.  

yep its at 100% when its on battery, still lags way too much and won't go above 0.79.

[unclewebb]

Try using ThrottleStop to disable BD PROCHOT. This is the typical throttling method that Dell uses.

 

If this does not fix things, open up the Limit Reasons window and use the built in TS Bench to put a load on your CPU. A 1 Thread load is good enough. Post some screenshots so I can help you out.

[Sushil K]

24 minutes ago, unclewebb said:

Try using ThrottleStop to disable BD PROCHOT. This is the typical throttling method that Dell uses.

 

If this does not fix things, open up the Limit Reasons window and use the built in TS Bench to put a load on your CPU. A 1 Thread load is good enough. Post some screenshots so I can help you out.

So during the 1 thread it did go up to like 1.2ghz but when I did it on 12 threads it constantly stayed at 0.79ghz. My goal is for it to stay around 2ghz+ so everything isnt as laggy.

[Aaron_T]

I had a similar behavior happen to my desktop, but it had to do with a motherboard BIOS auto overclocking setting. When I had this "auto overclocking" profile enabled my 7800X would down clock to 700 or 800mhz on all cores and get stuck there.

 

So it might be a good thing to try to go an reset your laptop BIOS to default to see if it helps. May or may not, but I hope it helps, good luck!

[unclewebb]

Post some screenshots of how you have ThrottleStop setup including one when your CPU is loaded. Open up Limit Reasons too so I can see if any throttling reasons are lighting up. No need to include Task Manager in your pics.

[Sushil K]

14 minutes ago, unclewebb said:

Post some screenshots of how you have ThrottleStop setup including one when your CPU is loaded. Open up Limit Reasons too so I can see if any throttling reasons are lighting up. No need to include Task Manager in your pics.

[Sushil K]

45 minutes ago, AaronThomas said:

I had a similar behavior happen to my desktop, but it had to do with a motherboard BIOS auto overclocking setting. When I had this "auto overclocking" profile enabled my 7800X would down clock to 700 or 800mhz on all cores and get stuck there.

 

So it might be a good thing to try to go an reset your laptop BIOS to default to see if it helps. May or may not, but I hope it helps, good luck!

I've tried that already and it didn't work  thank you for trying to help tho!

[Sushil K]

32 minutes ago, unclewebb said:

Post some screenshots of how you have ThrottleStop setup including one when your CPU is loaded. Open up Limit Reasons too so I can see if any throttling reasons are lighting up. No need to include Task Manager in your pics.

Heres another pic with 1 thread TS Bench. the last one was 12 threads

[unclewebb]

What your screenshot is showing me is that when you switch to battery power, Dell is significantly reducing the rated turbo power limits which is forcing your CPU to run like a slug.  Intel's low power U series have a TDP rating of 15 Watts so Dell has decided to limit your 6 core CPU to the same 15 Watts.  Dumb stuff like this is why I stopped buying Dell laptops.

 

Anyway, the only possible fix is open up the TPL window and make sure your turbo power limits are set appropriately.  Next, open up the FIVR window and try using the Disable and Lock Turbo Power Limits option.  This might be able to prevent the power limit switching method that Dell is using.  Most likely this is controlled by the EC so you are out of luck.  I would send it back to Dell and tell them it is useless to you because it cannot be used at any reasonable speed while on battery power.  

[Kilrah]

Does this laptop support the Dell power manager app? If yes there will be settings in there that alter the TDP.

[xAcid9]

I currently have similar problem with a particular Asus laptop and i need to update the BIOS to fix it, every single one of them zzzzzzzz. 

Try check if there is a BIOS update for your laptop that related to performance or power management fixes.

 

Also, unclewebb is here? 

[Sushil K]

4 hours ago, Kilrah said:

Does this laptop support the Dell power manager app? If yes there will be settings in there that alter the TDP.

I do have the dell power manager app but I can't find the TDP settings. 

[Sushil K]

4 hours ago, unclewebb said:

What your screenshot is showing me is that when you switch to battery power, Dell is significantly reducing the rated turbo power limits which is forcing your CPU to run like a slug.  Intel's low power U series have a TDP rating of 15 Watts so Dell has decided to limit your 6 core CPU to the same 15 Watts.  Dumb stuff like this is why I stopped buying Dell laptops.

 

Anyway, the only possible fix is open up the TPL window and make sure your turbo power limits are set appropriately.  Next, open up the FIVR window and try using the Disable and Lock Turbo Power Limits option.  This might be able to prevent the power limit switching method that Dell is using.  Most likely this is controlled by the EC so you are out of luck.  I would send it back to Dell and tell them it is useless to you because it cannot be used at any reasonable speed while on battery power.  

here is my TPL and FIVR. Do I need to install the thing next to "disable and Lock Turbo Power Limits" for it to work?

[Sushil K]

4 hours ago, xAcid9 said:

I currently have similar problem with a particular Asus laptop and i need to update the BIOS to fix it, every single one of them zzzzzzzz. 

Try check if there is a BIOS update for your laptop that related to performance or power management fixes.

 

Also, unclewebb is here? 

I already did that  thank you for trying to help tho.

[unclewebb]

5 hours ago, unclewebb said:

Next, open up the FIVR window and try using the Disable and Lock Turbo Power Limits option

Try following that advice.  Download and install the RwDrv.sys file from Mega.  Copy this file into your ThrottleStop folder and then select that option in the FIVR window.  The Install button in ThrottleStop explains how to setup this feature.

 

https://mega.nz/#!CNNA0SoC!Z2Xi2icwX4d4jzW016dKnKGhVglWmSSPpgiRU7VCG6g

 

You should also use a -100 mV undervolt on the CPU core and CPU cache.

[Sushil K]

8 minutes ago, unclewebb said:

Try following that advice.  Download and install the RwDrv.sys file from Mega.  Copy this file into your ThrottleStop folder and then select that option in the FIVR window.  The Install button in ThrottleStop explains how to setup this feature.

 

https://mega.nz/#!CNNA0SoC!Z2Xi2icwX4d4jzW016dKnKGhVglWmSSPpgiRU7VCG6g

 

You should also use a -100 mV undervolt on the CPU core and CPU cache.

So I should change the Offset Voltage to -100mV? Also the Disable and Lock Turbo Power Limits option didn't do anything 

[unclewebb]

3 minutes ago, Sushil K said:

Also the Disable and Lock Turbo Power Limits option didn't do anything

You installed the driver and checked that box and you are still limited to 15 Watts on battery power?  Dell is locking down their recent laptops so I guess you are out of luck.  The power limits controlled by the EC are in control of your CPU.

 

An offset voltage of -100 mV for the core and cache will help a little when plugged in.  It will do little when running on battery power because of the 15 Watt limitation. 

[Sushil K]

5 minutes ago, unclewebb said:

You installed the driver and checked that box and you are still limited to 15 Watts on battery power?  Dell is locking down their recent laptops so I guess you are out of luck.

 

An offset voltage of -100 mV for the core and cache will help a little when plugged in.  It will do little when running on battery power because of the 15 Watt limitation. 

I believe I did it correctly. Do you recommend anything else? I've only had this laptop for a little over a year.

[unclewebb]

This 15 Watt limitation has been around for a while.  Try a few different BIOS versions and maybe you will get lucky.

 

 

11 minutes ago, Sushil K said:

Do you recommend anything else?

Just setting the undervolt.  A -100 mV undervolt for the core and cache is a good place to start testing.