Overclocking 4800MQ with Intel XTU on NP9380/P370SM3

Hello All,

Anyone with similar system specs as me can share specifically how to get the highest OC with stock cooling using Intel XTU? Here are my specs:

Sager NP9380 (Clevo P370SM3) Notebook
Intel 4800MQ CPU
Nvidia GTX 780M
32gb Rams 1600
2x SSD Crucial
Windows 8.1

After researching online, I thought I can max out the 4 core multipliers from 3700 Max Turbo to 4100mhz (400mhz OC) without adjusting other things such as voltage. However my notebook will randomly reset or get the BSOD. If anyone can share on how and what to adjust in Intel XTU, it would be much appreciated! Thanx in advance all.

 

You need to adjust that voltage then since you are not stable.

General overclocking guides are best since every chip is different (Yes that means two 4800MQ CPUs can behave entirely differently).

 

Baby steps if you're going to start messing with voltage, especially overvolting.

 

Yeah overclocking needs to be methodical and iterative.

 

I am still hoping if anyone can give me specific instructions on what to change in Intel's XTU. I am a noob and overclocking is different on every system computer or notebook.

 

No, every haswell system is the same, look it up, take it one step at a time, if you don't learn about each change yourself you are going to do something that could damage it at one point.

 

Well considering I have the P370SM3 as well, I could give you something that's been actually stable for me (though with super high temps as if streaming etc it'll downclock itself as per usual).

First, you're going to adjust your voltage to -80mV. Next, add 300MHz to all four core speeds. Your maximum speed is NOT 3.7GHz. 3.7GHz is for 1 core. 3.6GHz is for 2 and 3.5GHz is for 3 and 4 cores being used. So with the instructions I've given, your maximum speed will arrive at 3.8GHz for 4 cores. Run a 5 minute test in Intel XTU next. If your room is cooler than mine and your fans are clean, you should keep most of your new max speed for the duration of this test. If your room is a LOT colder than mine you might even keep your max speeds for the whole test. If your machine does NOT crash during this time, save that as a profile and load it whenever you please.

I find that (at least with my chip) all -80mV does is reduce the temperature the CPU runs at and reduce the power consumption of the CPU. The maximum power consumption is about 48W according to HWMonitor normally, and with -80mV it usually doesn't cross 38.4W. If you push it heavily, it may spike to up to 44W, but it never reaches 48W or above. This is *MY* experience alone, however. If your chip does not like this, try doing -50mV and see if it works. If neither work, return to -80mV and do only a 200MHz overclock across all four cores. Again, if this causes crashes, try -50mV. If that's not stable, repeat the steps with 100MHz overclock. If at the end of it all you seem to be unable to OC your machine, you might have to overvolt it. I've never had to, so I won't be able to help you there, and you should ask around a lot more before trying that as it's far more dangerous to your chip than supplying less power.

 

The max stock tdp is 47w for long turbo durations and if you do anything really heavy this is enough for about 3.3ghz fully loaded.

 

I am confused as other readings/posts people have told me to overclock and not underclock. I am just trying to max out all my cores for turbo. Above is screenshot of my current config in XTU. Please advise. Thanx

 

No D2 Ultima said under volt not underclock. Also why is your core and cache voltage at 0.011V in XTU? Just leave them at default for the time being and try what D2 Ultima said. When he says -80mV undervolt, it means -80mV in the "Dynamic CPU voltage offset".

 

Rhutor,

Do I change "Processor Current Limit"? Default it 71A and I am told that it is ok to se this higher by others. Thanx

Also just tried undervolting to -50mv and my system reboots right away as soon as I apply it in XTU... So I don't think undervolting is right. My temps are 47-50C idle and gets up to 94-95C under XTU stress tests. I have also read that Haswell is ok up to 100C. Not sure if this is correct.

 

Your system reboots instantly with a -50mV Dynamic voltage offset and ALL other things left at default? Because... that's weird, bro. Your CPU seems like it just needs a lot of power if that's the case. Also, for processor current limit, my XTU had defaulted that to 70A for some reason and I got no issues, though I put it back to 71A for good defaulting measure later on. But no, I could run my stress tests and such easily without any problems otherwise. I suggest defaulting everything except the dynamic offset and see if it restarts you. If it does, you may just have a really bad chip for OCing

If your CPU can't take the lack of power, then I don't know what to say.

Also, @Meaker, with -80mV I can run stress tests or record BF4 using OBS with x264 codec, "veryfast" preset and 12,000 Kbps bitrate at 1080p 35fps while playing the game on Ultra @ 1080p for 30+ minutes. Maximum drawn wattage (hovering between 3.4 and 3.5GHz due to heat) was 44.something, so for me at least the 47W is actually too much power for full-load 3.3GHz drain.

 

If you want your cores to run at your overclocked speeds then yes you need to up the current limit. Probably need something like 100A or more for sustained 3.9GHz on all 4 cores.

94-95C is quite high, and at that point the CPU will start throttling, so it sort of negates any benefits from overclocking. 100C is the point where the system will do a hard shutdown to prevent thermal damage.

And if your systems reboots right away with the only change being -50mV undervolt and nothing else, then yeah that is majorly weird.

 

D2 Ultima,

Yeah on everything default and all cores adjusted to max, the system will reboot every once in a while. But since I starting upping the following:

Dynamic CPU Voltage Offset: Default to +10mv
Core Voltage: Default to +0.011V
Processor Cache Voltage: Default to +0.011V
Processor Current Limit: Default to +90.000A

My system is much more stable. Of course there is still CPU throttling and I notice when temps hit 90C+ during stress testing in XTU.

 

All cores adjusted to max? Why are you trying to get the maximum overclock instantly? I told you to try the smallest increment you can go for first. +400MHz on -50mV would easily be cause for a reboot unless you had a really lucky chip.

 

It is even rebooting at -35mV. Could this be because I have 32gb ram (4x 8gb sticks)?

Besides the upping the "Processor Current Limit" to 100A, what other settings do I need to adjust for me to keep all 4 cores at max speeds? Of course there is the throttling problem due to temps....sigh

 

Seriously, please leave the core voltage and cache voltage at default until you know what you're getting yourself into.

Besides upping the current limit, you would also need to greatly increase both the turbo power max and short turbo power max to run all 4 cores at a sustained overclock. But I would advise you get your temperatures under control first before attempting to do any further overclocking. Even if you found some stable settings, without keeping your thermals in check you won't benefit from the overclock and will just unnecessarily strain your CPU.

And please, as D2 Ultima said do things stepwise, don't shoot for the moon right off the bat or you're just asking for trouble.

 

I... I think this one is a lost cause. I'm going to go eat a tortilla wrap at 2:52am now and watch some anime.

 

Ok will do, at default before my system randomly reboots. Can you suggest on where to start or a range for "both the turbo power max and short turbo power max". I will also start with default voltages! Thanx again.

 

Look I am on the boards as I am a noob to overclocking and still learning. What I read was since I have a notebook and 4800MQ, the best I could do with stock cooling was to use XTU and max out the cores. However even at that, my system has not been stable and that's why I am trying to learn to adjust the settings to keep it stable. I know there is only so much I can do but I have been getting different opinions from different people. I do appreciate all your help though.

 

The problem is I can't give exact answers to your questions since each chip is different, and also why we all keep saying do things incrementally in order to minimize the variables that you have to keep track of.

My biggest question is do you actually need this overclock for certain applications, or are you just trying to get your feet wet? If the latter, definitely start with a moderate overclock before maxing out anything. Temps will be your biggest concerns, because if you can't keep them under control, any overclocking will just go to waste in the form of heat.

If you want my opinion, start by finding the most stable settings at the default voltage before messing around with voltages. This way you gain an appreciation for how your chip behaves and what it can tolerate. And also because an improper overvolt can instantly fry your CPU. (although with the overvoltage protection circuits on Haswell instant death might be less of an issue?)

 

I was just asking where to start. So far I have gone back to all default volts. I have only raised the "Processor Current Limit" and now for "both the turbo power max and short turbo power max", where should I start from? What specific numbers should I increase this by while running stress tests?

I am overclocking just to maximize my purchase of my notebook? I agree that temps are very important and that is why I am asking on this board on specifically how to go about.

 

What clocks are your gpu at? That has a larger impact usually.

 

I have not touched my 780M, at least not yet! Right now it can basically run all the games I play at max settings. I wanted to mess with CPU because based on my "internet" research it was something easily overclockable at least to max out all 4 cores in turbo mode.

 

No point in doing it to be honest unless you have a specific goal.

 

^I agree but to be honest there's nothing wrong with wanting to do something for its own sake. I only got into overclocking because I wanted to see what all the fuss was about.

But yeah has to be done the proper way, although messing with settings haphazardly is unlikely to cause any serious damage I think unless one starts tinkering with the voltages.

Anyway current limit and (short) turbo power max are just that, limits. They can be set to arbitrarily high values since the CPU will only take as much as it needs. Of course the big caveat here is that temps must be kept under control.

 

The GPU is easier to overclock and balance correctly and earns the most performance but if you are set on the cpu then yes temperature is king. Set a target frequency, raise your tdp and current limits, see what the minimum voltage is for that clock and see if it runs too hot. If you can go a couple of voltage steps above that and still remain cool (with no frequency change) then you can likely use it as a 24/7 setting.

 

When you say to adjust "Dynamic CPU Voltage Offset" do I need to adjust or undervolt the "Processor Cache Voltage Offset"?

 

no

 

Woot we continue our convo a year+ later! So only adjust the "Dyna,ic CPU Voltage Offset"?
1.) What happens if I adust the "Processor Cache Voltage Offset"? Does it do anything to benefit or affect the OC?
2.) What other settings do you recommend I adjust and why?
3.) Do I need to adjust the "Processor Cache Ratio"? Also what does this do? I have it on 40x to match my 1 Active Core at 40x.
4.) After stress test and benchmark my temp at highest is aroun 85c, is this acceptable? I have laptop with stock air cooling.
Anything that you can add more advise would be helpful and appreciated!

Thank you D2 Ultima, as I know my questions take more explanation and I want and am still learning to understand and use Intel XTU.

 

If it's crashing you don't have enough voltage, if it's too hot then you have too much voltage for your cooling system. The best clock is when you have the voltage at just the right point where it wont throttle and where you have enough voltage to keep it stable. Where that point is depends on the chip, heatsink etc.

 

Start with an better thermal grease. Don't overclock before you've applied a good paste like Ic7, Gelid exstreme or the best "Liquid ultra"....

 

When I purchased my laptop, I upgraded the thermal paste to Artic something...

 

You don't want to mess with the cache voltage or the ratio unless you are having problems getting the frequency that you are shooting for to be stable. If that is the case, start first by dropping the ratio down to 35 or so. That usually is enough to get things stable without a huge performance hit.

85C is par for the course with Haswell. Mine runs around 89C when pushed to the max with its overclock. If you hit 95C it will thermal throttle.

MX-2 is a garbage paste for low pressure mounts, I would replace it with either GC Extreme or IC Diamond (personally I try to avoid IC Diamond because it scratches the die if you aren't careful removing it). Liquid ultra is the extreme option and I wouldn't recommend it for your CPU really. It makes sense for TDP unlocked chips like the MX chips but not as much for the 4800MQ

 

All arctic pastes are out of date now and were never the best for notebooks (low pressure) anyway. Better than stock, just not as good as you can get.

 

Actually I am supposed to have diamond IC compound. For my overclock, I am assuming it is the speed of ALL 4 cores right? My fist core can easily run at 4000+ with no need to adjust volts or other factors. So the cache voltage just leave at default? No need to over or under adjust it?

 

Shouldn't have to fuss with the cache unless you have a pretty bad chip. Overclock you adjust on a core by core basis - you can see on XTU where it has the sliders to adjust the core.

 

do you know guys what version of xtu can oc the cpu?
because I download from guru3d and I cant oc the cpu with the newest version...

 

What Xtu are you using? From XTU version 4.2.0.8 all works fine with Hotwell processors.
https://downloadcenter.intel.com/search?keyword=xtu

It does not help with a good thermal grease if the application is bad ... A good thermal grease and application is the first precondition for overclocking of processor's. Especially on a Hotwell...
Put both multiplier and cache ratio as you want at the same speed and voltage to default. Test stability. If everything is stable, you can reduce volts down to instability. Then adjust the volts up to where you can find the stability for your processor. Do not touch cache ratio before you absolutely must. But only after you have tried out core voltage. If you are unable to get a stable overclock, try to increase Cashe voltage offset slightly up. If you experience still instability, you can begin to reduce Cashe ratio to get stability.
Remember that all overclocking is trying and failing ...
Here are a few links you can take a look at ... http://forum.notebookreview.com/thr...-8ghz-using-intel-extreme-tuning-help.766864/
http://forum.notebookreview.com/thr...ly-have-it-run-full-stock-turbo-speed.734696/

 

I put it -80mv and I oc my cpu +100 MHz each core.
its fully stable at games and everything!!
my max temps are 81c(bf hardline) stock fans and here is 22 celsious
im pretty amazed..
from the hwmonitor shows that at IA CORES is 38.79W when I was playing bf hardline.
very nice