Clevo P7XXDM2(-G) TDP Problem

Hello everyone.
I recently got my Schenker XMG U507(clevo p751dm2-g) with the 6700K and a GTX 1070.

I had some temperature issues when it comes to the CPU, but found a thread on this forum that solved them by putting an undervolt of -150mV to the CPU.

On my laptop there is a software pre-installed, where you can adjust these cpu setting, but I decided to install XTU because I saw that it is more advanced than the factory tool.

The only thing I changed in XTU is the core voltage offset to -157mV (currently) and somehow the System is adjusting the "Turbo boost power max" value automatically.

If I restart the system it is automatically set to 53.XXXW. Due to this, the cpu gets clocked to 3100Mhz when stress testing.

I have to manually set this value to 95W again, every time I restart the system.

I checked the Bios and the P1/P2 settings are disabled there.

Shall I try to just set this value hard to 95w from bios?

Thanks in advance.

 

Could I ask what are your fan settings and temps when running at 4Ghz after the undervolt? Also which screen are you using? (sorry I'm just really interested in this machine)

Regarding your problem I don't know much but I have heard that the stock Clevo Bios is very faulty. I don't know if it's possible by any means but maybe it will help if you get the Prema BIOS - it's a modified BIOS created for CLEVO machines that solves many problems and enables maximum performance. I just don't know if it's possible to get it after you buy a machine.

Hope you solve the issue! Could I PM you for some questions regarding this laptop? :3

 

For Gaming I mostly use the "custom" fan setting, starting fans at 65 and stopping them by 50. Max Fan on 80%. I now have a undervolt at -157mV. The VID at load is about 1.16 - 1.2V. The Temperature at Battlefield 1 with ULTRA Preset and Full HD + VSync enabled (60FPS) is 65-79C for the CPU(at around 55-80% load) and 70-80Cfor the GPU.

Without the Undervolt and fan settings at "auto", I reached 100C CPU Temp in Battlefield after about 15mins of gameplay. It reached so far, that I had thermal throttle and bluescreen.

The undervolt saved me around 15-20C for the CPU, which is great!

Right now idleing at 4184.63Mhz (99.63x42) at 1.1570VID and 32C CPU with fan settings set to "auto"

No problem, just PM me.

 

Found something out:
I removed XTU and "Hotkey"(CC) and made shure, that the XTU service is killed and all files are gone.
After I reset the BIOS back to the defaults, the Power Limit is back at 95W.

I enabned the overclocking options in the bios, but I cannot change the "core voltage offset" to a negative value in the bios...

Does anybody have an advice..

 

that's one of my gripes that I told @Meaker@Sager about in the stock BIOS

If you look at the tooltip next to the voltage offset on the right, it says you can set a value from -500mV to +500mV, but if you type a minus sign, it doesn't register......

Even if you do it through CCC and set it to a negative value, if you check in the BIOS it shows as a positive value

In the Prema BIOS, you cannot type a negative value in the field as well but underneath it, there is a + or - sign you can select from. I think Clevo just forgot that part

 

Pretty reassuring that I'm not the only one haveing this problem. Thank you.

But for me now, the problem stays, that as soon as I undervolt in CCC and restart the system, the CCC changes the Power Limit 1 / 2 to (random?) low values. After the restart now, the values have been set to

PL1: 29.3W
PL2: 53.125W

Are the Power Limits at the same value for you, if you restart the system ?
Its annoying to change them everytime as soon as I restart..

 

Here's what I would do......

Reset BIOS to defaults......

Downloads the latest Throttle Stop and set your options like this.....

TPL are the power limits, maximize them like me, it won't hurt, the system will only draw the power it needs

But change the multipliers and voltage offset to what suits your CPU. The power limits and turbo power limits shouled be maxed out

@Mr. Fox , please suggest anything that you would change in these settings if any










How to create an automated task to have ThrottleStop run automatically upon startup

 

Thank you very much ! I reset the bios to factory defaults and disabled XTU in the Services in Windows.
I Pretty much just changed the voltage offset and TPL limit and kept defaults on the other values.
Working perfectly.

But there is still the question why the CCC/ XTU change the PL1 and PL2 limit to such low values... Is it because I have the 230W PSU ? Maybe @Meaker@Sager knows why ?

Thanks

 

Its something I have raised but for now you will have to set it via software.

 

And regarding my problem with the power limits ? that the CCC automatically sets them to low values?
Thanks in advance

 

Try matching the power limits in the BIOS to the software.

 

I did that already. I enables the feature in the BIOS and it showed me the optimal values for P1 and P2. Back in windows the CCC showed me the exact same values too. After another reboot the settings got overridden in the BIOS to the low ones again..

 

Then how does the system react? Does it use a low TDP?

 

Because CCC's over clocking and the stock BIOS are a big mess to be honest. just use ThrottleStop and you shall be fine. for now at least

 

Yes right. PL1 is 95W and PL2 118,75 if first enabled in the BIOS.
Then as soon as the pc gets restartet they get changed to PL1:53.xxxW PL2: 66.xxxW.

Removing CCC and Xtu service fixes the problem. But I still need to undervolt because the system runs at 1.32-1.35V from factory, which is nearly an instant Temp throttle + power throttle.

Okay... Thanks again, works great. The 6700K runs on 1.096-1.17V now at full long time (x40) multiplier. And just reaches max 81C in a warm room while playing battlefield.

 

Yes it's known that the default voltage for Skylake is way higher than what it needs to run stable at stock clocks, which is why we can undervolt by -140mV to -150mV on a 4.2 GHx 4 multiplier setup and still have a stable system. The higher your clock speed, the more voltage we need, ie, lesser voltage offset

Example, I used to run 4.4 GHz with a -80mV offset for CPU/Cache and it was super stable on my previous CPU which wasn't a Silicon Lottery one.

 

Sound good! I'm still a little disappointed that the Clevo/XMG What ever does not manage to hold a stable Temperature without the undervolt. My mate, who bought the same Laptop was already despairing because he does not know anything about Overclocking and always had bluescreens thermal throttle while playing - lol

 

As awesome as these laptops are. they are in no way usable out of the box unless one got really lucky with the Silicon Lottery and got a CPU that runs fine under stock voltage . I was a victim of 2 bad 6700K CPUs that I finally gave up then bought a Silicon Lottery CPU from HIDevolution and now I run 4.6 GHZ without any undervolt, just stock voltage

 

hello,

nothing to contribute
i just wanted to keep track of this thread
the throttlestop program is nice

thanks,

j

 

Maybe give your feedback in TS guide as well? TS author @unclewebb will appreciate that

 

My reseller "Schenker(XMG)" send me a new BIOS version yesterday (1.06.02) which is a preperation for Kaby Lake, which should fix the negative voltage offset problem etc.
I'll keep you updated if it works

 

Some new informations? Meanwhile i own a XMG U717 (6700K and GTX1080) using KBL Bios 1.06.04 and KBC/EC Firmware Revision 1.06.02 and can´t change the Voltage Offset to minus. Tooltip says +500 to -500, but it doesn´t works, only 0-1000.

 

You have to use intel XTU to set a negative offset at the moment.

 

Thanks for information. Is here in the forum a testet and validatet .xtu Profile for download? (e.g. -100 - -150mV). I remember there was, but i dont know where...

 

Every CPU is going to be different. Trial and error is the only proven method to find out what will work for your specific computer.

I had a P775DM3 with a 6700K that couldn't take even a -50 mV without instability. Most folks with the same processor could easily get double or triple that.


Sent from my iPhone using Tapatalk

 

Hm at the moment i don´t have much time for large testing, but your words are right, thanks. I have a P775DM3 too with the same CPU.