P750DM2-G From HID

Hey guys, just got my new laptop.

Loaded up Windows and started playing around with it, and then wanted to see what was in BIOS. Been overclocking, including extreme OC's with Phase / LN2 for 20 years so no stranger to it, and I know my BIOS'es. (Although I feel like I'm missing something).

I know laptop was advertised as 4.7ghz, but mine was set 45,44,43,42 with -100 vcore on adaptive.

Been tweaking it, have it set to 47x all cores, 1.225v manual vcore (1.15v underload) and seems to be stable 1hr ROG realbench.

The issue I am having is no matter what I do in bios, once the GPU starts doing anything, the CPU drops to 42x even with only 1 core active. Checking wattage from wall, it pulls more wattage from wall from realbench at 4.7ghz (150w) then it does gaming, so not sure why it keeps dropping to 4.2ghz.

Does anyone know what BIOS setting could be causing this? Been tinkering with power settings for awhile and doesn't seem to help.

 

Firstly, please put your specs in your sig like all of us so we know your hardware better

Secondly, in your BIOS, set power limit 1 and 2 to 160000

Also set VR Current Limit to 2400 under PSYS Max Current and also do the same for IA/Core Current Limit, System Agent, and the one below it (I forgot, I think it's called ring current limit)

i would also fish for a setting called Efficient Turbo and disable that, if you read the tooltip next to it, it states that will lower your turbo limits so you don't want that

 

Hi Phoenix, will do that later. It's 7700k, 16gb ram, 330watt psu, gtx 1070 on the Clevo P750DM2-G

All settings are already set they way you mentioned.

I only see VR Current limit under overclocking, no where else.

But still dropping to 4.2ghz under pretty much no load...90 watts from wall light gaming.

 

I sent you a PM to have a look at your BIOS settings

 

@Mr. Fox @Prema @Papusan @bloodhawk

So I just checked his BIOS settings like power limits and VR Current limits, all are good , 160000 power limits and 2400 VR Current limit but he is using static voltage and is getting throttling down to 4.2 GHz the moment the GPU has any load on it.

I did disable CFG Lock for him which he had enabled but it made no difference

I told him to set the voltage to adaptive but he says after another reboot, it would go back to -100mV so seems like a bug in the BIOS that if he sets an undervolt of -50mV instead of -100mV it doesn't stick on his P750DM2

Any ideas?

 

@Prema We went over the bios settings, everything is good.

No matter what is changed, once the GPU is active, the CPU clock speed drops to 4.2ghz. This is on a P750DM2-G BIOS verson 1.06 05EVOC v1

Also, while using adaptive voltage, standard setting is -100. If I save and reboot at say -50, it will stay during 1 reboot. If I reboot again, it changes to -100 again.

@Phoenix Thank you for your help

 

you got my name wrong in the tag bro but you're welcome

 

Ooops fixed

I think what's happening with the -100 adaptive is, it always says -100 in the bios. So if I set -50 and reset and never change anything else in the BIOS it will stay at -50.

But if I go into the BIOS and change anything at all, and save, it will save the -100 back.

 

oh yes I forgot to tell you some settings don't stick if you change multiple things at once such as power limits as well

so do you get throttling now with adaptive voltage?

 

Yeah it throttles in adaptive and override.

 

can you buy a 2nd power adapter and hook them up together or better yet buy the 780W power brick from HIDevolution?

 

I hope that's not why, I chose the 330w for an upgrade. Only using 150w from wall as is, and brick is barely luke warm. Seems like some sort of limiter is kicking in once GPU is under any load.

I have a Corsair AX1500i, maybe I will rig that up

 

That's very strange. The best thing about the Prema BIOS/EC is that it prevents throttling.

I hope @Prema can shed some light on this.

 

Yeah I thought so too, but it seems to throttle kind easily in general.

4.7ghz is stable at -50 adaptive in realbench stress test for 90minutes. If I even try 4.8ghz, once I hit the start button for stress test it throttles to 4.2ghz.

 

@Zoltan@HIDevolution

I was told to get a hold of you. Any input on this? Also emailed you. I'm sure it's a BIOS bug but just in case it could be some other setting.

Thanks

 

More issues...the vcore is totally unstable at idle.

I got 4.8ghz rock solid 4hrs of RealBench stress test. 4.8ghz running 1.2v. The voltage is stable under load, but when idle, it bounces all around.

And, with adaptive it's for sure not saving vcore settings. Running 4.8ghz requires +15, but everytime I reboot the bios must be resetting back to -100...even if I don't even go into the bios. So everytime I reboot the laptop, I HAVE to go back in and manually set +15.

 

What's the EC version on your system?
I have removed all of Clevo's low level board throttle on my mods, you can run 5Ghz+ just fine alongside an OCed GPU.
On this model in addition you may have to fire up throttlestop to keep the Turbo active due to OS induced code randomly disabling the Turbo.

 

@Prema

It's 1.06.030C

I tested ThrottleStop a few hours ago and it did fix the issue issue of going to 4.2ghz while gaming...

But I have the other 2 major issues...Adaptive voltage not sticking and always applying -100 even when not entering bios, and huge idle voltage fluctuations.

Thanks for the help Prema

 

KBL idle voltage is always a lot higher, that's normal...actual load voltage is lower and 'stable'.
I have removed Clevo's attempt to enforce a -100mV offset on us in v2 of the premamod.
In case this is something important to you, you can contact EVOC later this week for the update after they have completed their internal quality tests.
Many of us are using override voltage (static), e.g. 1200mV instead offsets...

 

@Prema

I was using override, and it was working fine. But now the CPU frequency is bouncing all around from 1.2-4.8ghz. Even ThrottleStop doesn't fix it...

will have to play around with it more

Edit: Just a lot of tweaking...seems to be working again with override. Also, idle voltage seems to be a bit more stable vs adaptive.

Both pics are about same vcore under load (1.2v) but the pic that has less variance is on override instead of adaptive.

 

Can you do a graph like XTU produces to look at what the CPU is doing in more detail?

 

Yeah I can do one later.

Passed Asus RealBench stress test for 4hrs at 4.8ghz 1.2v, and 2hrs XTU. Stayed at 4.8ghz the whole time according to XTU and HwINFO.

At the thermal limit though. Might ghetto strap a waterblock to it see how high it can go

 

Everything is working great now, 4.8ghz stable, GTX1070 +175 GPU offset +775 MEM.

Only issue I have now is when I reboot the CPU speed varies all over from 1200 to 4800mhz. Throttle stop doesn't even do anything.

Only way to get it to work is if I do a cold boot by turning it off completely. On next boot it's rock solid staying at 4800mhz with ThrottleStop. This is is manual voltage mode.

If I do adaptive I don't have this issue (but I have the forced Clevo -100 issue, and idle voltage is crazy)

@Prema Is this possibly a BIOS issue as well? Would rather just stay on voltage override right now.

 

What happens if you flick power plans when you do that? Does it vary speed by load or is it random?

 

@PeenX2

Been following the thread because I have a similar configuration with my EVOC P750DM2-G.

But I'm also interested in learning more about overclocking configurations in general, and I'd like to understand the overclock settings that relate to one another, at least with @Prema BIOS. Would it be possible for you to summarize the changes you made to your BIOS original settings which result in the system you have now? (BTW, I assume you're still on BIOS V1)

Also, this might be a good time to thank @Phoenix, for providing the only two Youtube videos that I could find, that provide some good @Prema BIOS overclocking information, ( 1., 2.).

 

@Meaker@Sager Power Plans was one of the first things I tried, but it makes no difference. Load makes no difference, it just bounces around randomly. I'm going to try installing Windows on a seperate SSD and see what happens after a fresh install. Usually on a new build I will overclock on a scratch disk to find where it's stable and then do a fresh install.

@jas I've overclocked tons of systems, different BIOS'es since the mid 90's. The Prema reminds me more of an older DFI BIOS which I like. Brings back memories. If you know overclocking terminology, and the type of platform, being a Prema BIOS isn't really any different from any other overclocking platform. The best thing to keep in mind with most BIOS, including Prema, usually less is more. Usually not really necessary to make a lot of changes in the BIOS.

I knew coming in, since it was a laptop we will be thermally limited so don't really expect too much. First thing I did was lock all cores at 45x multi, and was trying to figured out what would hold voltage better, adaptive or override voltage in BIOS. Also I set windows to High Performance plan so I can see minimum voltage to compare easier.

From Haswell CPU's till now, I find RealBench to be by far the best stress test. So I tend to use that to test stability. I use RealBench to find out how much droop the VCORE has during load as well.

I found override to be more stable so that's where I initially started on this, so I put in a more standard voltage of 1.2v and 45x multi to see where I could go thermally and ran Realbench for a 5min for a quick check.

After that, I would just go back in the BIOS and add 1x multi till it isn't stable anymore in RealBench. All CPU's since Haswell I've noticed early on, it takes about 0.025v more to jump about 100mhz with stability.

For example, on this 7700k it would take 1.15v to make it stable at 4.5Ghz all cores loaded on RealBench for 1hr. 4.6ghz takes 1.175v and 4.7ghz takes 1.2v. After that it starts needing bigger jumps in vcore which for one the Clevo is thermally limited and also not really worth bumping the voltage up much more for a small gain of 100mhz.

After I found 4.8ghz to be mostly stable at 1.2v, I ran RealBench for 4hrs. Then I would introduce other programs to test.

Once you're done with this, you can start overclocking cache, and memory, gpu.

Couple other things to keep in mind when overclocking ANY system. Always make note of where you are in BIOS and write it down. It's easy to fail POST and need to reset CMOS and forget where you were. Also, I always overclock CPU, Cache, MEM, GPU with an OS I know I'm going to format later till I know it's 100% stable. Once I know it's good, I like a fresh OS with no BSOD's...I'm weird like that. But you sometimes get little issues like the one I'm having now with CPU clock bouncing all around for no reason.

Anyways, hope this helps.

 

Thanks. It is very helpful.

 

You are one of the most advance overclockers I have seen.

I think Mr. @Papusan will become your new best friend:



@Papusan I found your pic finally >>>

 

New problem, if someone might know what's going on.

If I unplug my laptop, web browsing becomes very slow and choppy. I have throttlestop set to 4.8ghz, High Performance power mode, GPU even set to Max Perf and it's still choppy on all browsers. Right when I plug it back in, it's fine though.

Is there a BIOS setting that is causing this?

 

Your settings are too high for use on battery.
.

 

Does it on stock speeds too though...

 

you can't use the battery on such high performance clocks man, think of a battery as a backup not as a means of using the laptop. This is not your typical portable laptop. You can try to stay on the balanced plan and see if the clocks hold higher

 

Well that's a bummer. It has nothing to do with CPU clocks though, they stick where they are no matter what. Even with bios default's it has the same issue. Something to do with GPU I'm sure, like the BIOS won't allow the GPU to do much on battery.

Can barely browse the web on battery, even 100% stock bios settings. Was hoping to be able to unplug once in awhile and use the internet. The battery lasts almost 3hrs on full charge, but pointless since it's unusable.

 

ill have a look soon, gimme a moment

 

It should still browse ok, which browser are you using?

 

Chrome, Edge, FireFox, IE...they all lag horribly. It games fine on battery.

Everything is set High Performance, tried setting card to Max Performance in nVidia Control Panel. Checked DPC latency, all good. Tried a seperate OS install as well on another SSD, still lags. Tried BIOS reset too.

Feels like some sort of hardware limit to me. Once I plug back in, it's fine.

 

Try it with a more balanced profile and at stock instead.

 

I've tried both, all profiles and 100% stock bios settings.

 

Have you already tried disabling hardware acceleration in your browser? This being enabled causes me all sorts of stupid issues and it also prevents the GPU clocks from dropping into 2D mode when enabled.

If not, maybe give that a try. IE, Edge, Firefox and Chrome all have options for this. In Chrome go to the Advanced Settings and clear both check boxes under "Settings" then restart the browser.

 

Yeah, I always turn it off anyways because of the same reasons you described.

 

Maybe speak to HID then as web browsing should be smooth normally on battery.

 

@Prema Still fighting this thing...

Flashed BIOS to new v2 Prema and now it's throttling worse! HWInfo is showing "IA: Electical Design Point/ Other (ICCmax, PL4, SVID, DDR RAPL)" as reason for throttle. Reinstalled Windows yet again, and running ThrottleStop is not helping.

All my current limits are up in BIOS so not sure what's going on anymore.

BIOS 1.06.09EVOC V2
KBC/EC 1.06.050C

 

I wonder if somehow the power delivery circuitry from the battery has some sort of issue...

 

Yeah maybe,

Mine does the same thing as this video...which is an old video. And it was an EC issue.

 

@Donald@HIDevolution @Zoltan@HIDevolution Any idea what's going on here? Seems like EC issue. Same problem as video above.

Zoltan I sent you an email as well.