The processor can't reach it's top core speed

any idea why is this happening ?

 

Graphics frequency increases while the processor clock frequency decreases and vice versa. Set up monitoring also for iGPU so you see if iGPU affect the result...

 

Personally I have not seen XTU resetting itself except for crash/bsod and it is programmed that way, since bsod is indicating unstable system. It's a fail safe since otherwise there is possibility of having settings so mismatched that without auto reset computer could keep on crashing during boot, before you could actually get to the program to change the settings manually and you could be in endless boot/crash/boot/crash cycle.
I suspect undervolting cache benefit is so miniscule as to be not even worth bothering, according to my monitor the whole 8 GB of RAM uses about 1-2 watts of power and cache has about 6MB - 7MB? And then if you have rare, once a week crash it would be hard to figure if it's a CPU crashing or is it cache.

 

Xtu can reset if bios and xtu not cooperating well. Depends on bios. But most commonly with unstable settings.

 

What is your question?
Because I see another thing which is very strange: during cpu stress test your cpu is running 0.8 GHz withTDP of 12 W, which seems to be throttling heavily even with low 61c temp., then it ramps up to 3.14GHz.
When I run stress test, it stays at steady 3.48-3.49 GHz whole time, with TDP around 40W and GPU at steady 600 MHz with temp around 80-90c (Yeah I'm waiting for delivery, will be repasting soon). Did you run something else in the background? Either that or something else is throttling your cpu: I've seen current throttling on mine, the only throttling I've ever noticed (you need to go to settings to be able to see it), but it slows down cpu for very short time, few seconds at most and not during the stress test.

 

my question was about the throttling to 0.8 Ghz . i can't get steady clocks on any settings don't know what should i do and TDP is not a stable 37 W

nothing run in background .. the throttling in my laptop happens for a long time i experience a too much lag that i return to stock clocks

i will check that thanks

The TDP throttle down after exactly 60 Seconds to 20W TDP .. nothing work in background

 

That's probably an HP thing. I know for a fact HP messes with their chips and they go down to 0.8GHz under substantial load, as a friend of mine who does Premiere Pro editing has mentioned it happening repeatedly to me on HP laptops.

You can fix it with throttlestop, but there's no telling if the cooling can keep up.

 

how to fix with throttlestop? i managed getting 3.2 Ghz but the TDP throttle is killing me

EDIT: The throttle is caused by HP Coolsense to cool the laptop

now power limit throttling

 

Power limit throttling is something you can't escape, except for the XM line for mobile CPUs. Best you can do is what you already did, undervolt and save every precious watt for it to be used by your cores. 37W is just a joke of a limit.

 

i am getting more than 90% power limit throttling and nothing can help.. undervolting the cache voltage offset -120 decreased it to 30% avg 65% maximum

HQ and 37 W are the worst things i've met in my life

EDIT: Got BSOD on -120 mV

 

if HP coolsense loads as a program and not part of the BIOS, then you could stop it from loading, you could also increase power max and current limit in XTU, but you would increase chance of your laptop breaking down (power board failure).
But wait a second, why your XTU is showing you have no battery in the laptop? I'm not sure about HP, but some laptops like MSI will drain power from battery in addition to AC to supplement extra power required during heavy load, did you ever tried it with battery in? And yes, 37W is a joke, that CPU can drain up to 60W under heavy load and normally 47xx series CPU have 47W sustained and 58W short term power limits.

 

yeah it loads as a program i disabled and reenabled it and the TDP throttle is stopped, i guess.

power max and current limit didn't help but undervolting the cache voltage offset decreased the throttle a little

i will try with battery and see if it helps.

37 W is a joke and buying stuff without searching about it is the worst thing you can do, but no one can learn for free.

EDIT:

Didn't help

 

That is a massive amount of mv offset. I use something like -45mv for CPU, -28mv for cache voltage, and reduced ratio.

But my HQ processor is different. I am using a 4720HQ and my fixed turbo boost power max and short power are stock 200W, as well as I am not running the intel GPU at all, so I imagine that helps my case more than most other laptops?

 

according to this post, i think it helps

but 200 W stock ? mine is 37 and 46.250 stock, that's a huge difference.

i am getting no problems with -85 mV offset .. the cache voltage is stock but i am not sure if i should undervolt it

is that should be called stable? the power limit keeps jumping
and how to know if the CPU is stable in idle?

here is a screen record



http://i.imgur.com/EtWdCPa.gif

 

Technically it is stable, the power limit throttling will only limit the system back down to TDP, so that is why you are getting 2.95-3.05ghz fluctuations. It will operate at that range once the turbo boost window ends.

If something loads the CPU heavily though, you might drop a bit further. Not every load is the same, nor taxes the system in the same manner.

 

MSI simply leaves their BIOS to default to 200W. You still should not be able to pass 57W; according to the research I did from people in the GT72 thread. The 4980HQ should be able to hit the 200W if it pleased, but again, only keep it for 2.5 minutes.

But the more you can undervolt helps; just raise the current limit to compensate.

 

Hey, Im curious to this as well, see this thread: http://forum.notebookreview.com/threads/minimum-haswell-cpu-clockspeed-for-3k-60fps-gaming.776158/

Anyone knows this?

 

@ Arthedes actually i gave up overclocking and tuning my cpu since it crashes GTA V .. i play on 2.5 and some times i disable turbo so i play 2.3 and i notice no difference .. i get fixed 30 FPS, maybe there is difference if i disabled vsync i don't know

maximum settings but X2 anti-aliasing

 

Hey, my 4720HQ also is undervolted by only 40mV. Seems like its a bad clocker?

Dont you get higher framerates when your cpu is clocked at say 3.0hz? I keep hearing gta is very cpu intensive

 

I maybe have noticed some fps gains but I think it is more likely psychological, I don't know FPS is locked to 60 by the way for me.

I actually can perform integrated benchmark test of GTA V to use how difference between 2.5 GHz and 3.0 GHz if you want or you can too by setting active cores multipliers in Intel XTU.

 

GTA V doesn't work and crash in opening when i tune or edit the CPU settings in XTU. i don't know why. i would try it it works

is this message means that the system is unstable? i am back tuning the cpu and i pass several tests except when i play gta v it crashes in the middle of the game

https://imgur.com/TyitMRE

 

That's the Synaptics Touchpad Enhancements process causing the crash. It's a driver conflict, not CPU instability.