Clevo Overclocker's Lounge

This is a P650SG (980M) board like what I have:

Spoiler

This is a P650SE (970M) board like what you have:

Spoiler

Look at what I marked in red. The big grey ones are phases. The small black ones are FETs. As you can see, the 980M has 3 phases and 6 FETs. The 970M has 2 phases and 4 FETs.

I replaced the stock thermal pads on the VRAM chips with 1.5mm Arctic pads.

Do you have a better quality picture? That looks like the inside of the bottom cover, but it's really hard to see much of anything.

 

Ok cool. The pic is one off the internet, I'll try to get an actual picture

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Most power FETS for Clevo MXM slots are rated for well over 200W (typically 266W). That is your true end of the day power limit, as exploding power FETs is bad. Blowing the motherboard's MXM power supply FETs is the only thing you need to worry about. Exceeding other power ratings like MXM3's power rating just means you're being slightly less power efficient than the MXM spec.

A 980m with added power FETs can draw over 230W. One without them struggles to go over 130W without having its FETs overheat or have too much voltage drop, making the VRM flip out and shut the card down.

Clevo's 180W PSU is known to provide around 220W before shutting down. When the PSU shuts down your laptop will run off battery. If your GPU is hitting 180W, the 180W PSU will definitely be powering off when other components like CPU are factored in. The battery is good for roughly 100W, depending on the age of the battery. If the battery's power limit is exceeded it will also shut down a few seconds after the PSU shuts down.

 

OK so a new power supply will be in order. Is 230w enough or do I need more?

Also, my laptop (Clevo P650SE-A) has a soldered 970m, not an MXM 980m. Any idea on how much I should expect the FETs to take? Essentially, do I run a high risk of blowing up my laptop, or is it negligible?

 

Alright here is where I'm at right now

IMPORTANT: I'm not actually getting any full system crashes. Firestrike crashes and my GPU becomes unresponsive. I get no error messages, but the sliders in nvidia inspector get grayed out and gpu-z displays blanks where the temps, clocks, and whatnot go. Any attempt to open a directx application gives me an arror (probably because intel gpu isn't supported). Restarting fixes the problem. I would try to get some screenshots, but seeing how the crashes are caused by maxing out the power delivery, I'd rather not as I'm probably killing my laptop.

I have a P650SE-A an uncommon variant of the P650SE (Sager NP8651). It is running a soldered 970m with 2 phases and 4 FETs with an i7-5700HQ. The stock PSU is rated at 180W. My GPU pulls upwards of 150W at full load and sometimes peaks at 180W. The CPU isn't stressed as much and peaks at around 40W.

Now, for my questions.

1. Is my power delivery a goner if I keep running the GPU like this?

2. Are the FETs and whatnot limiting me or the external PSU?

3. Will getting a P6xxRS/P6xxHS 230W PSU alleviate my problems?

4. If I can keep the FETs cool, does it matter how much power I am drawing?

5. What is the best way to keep the FETs cool?

6. Should I give up my pursuit of "free" performance and just get a better laptop(I probably won't)?

 

What you describe sounds like a particularly bad crash due to over overclocking. Maxing out the PSU will not cause a crash, just a switch to battery. If PSU is not turning off, don't bother replacing it.

1. I have found laptop PSUs to be very robust, even when getting maxed out all the time.

2. It sounds like neither and that you are getting driver crashes due to to to much of an overclock.

3. From what you describe your PSU is not shutting down, despite going well over its 180W rating.

4. 4 FETs if cooled can are rated for around 190W.

5. It depends on your laptop and what you can fit in the frame.

6. Nah, pushing older stuff to run like new hardware is more fun.

 

Ok so my laptops not going to blow up. Any second opinions?

What makes you say that my crashes aren't caused by power? As long as I run 1.2v even on tiny overclock I still crash. I'm going to test firestrike with stock clocks at 1.2v and see what happens.

Also, where did you find the 190w rating? I'm curious because I can never find any definitive notebook overclocking resources.

I'm going to test again and see if I'm switching to battery at the moment of crash.

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The power FETs are rated for 40A. If your core is running at 1.2V then 4 * 40A * 1.2V = 192W. This is a rough estimate. If you're running at a lower voltage then your power rating is lower. This 192W figure also does not consider power draw from the rest of the card, like memory, which is around 20W, or the fact that for vdroop compensation the core FETs will set more like 1.3V, and the voltage drops to 1.2V before the current gets to the core.

 

You have separate phases for the memory.

 

Who are you referring to?

 

The post above mine? Unless the forum is not displaying as it should?

 

Which system config/GPU were you talking about? You kinda jumped into the middle of an ongoing discussion with a somewhat random statement which lacked context.

 

It goes for all systems, your GDDR5 will be on a separate power plain to the GPU so the statement is always true.

 

Ok. Where would the memory fets be?

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Ok. I'm a bit confused when you said the vdroop compensation would put the voltage at 1.3V. Does that mean my power delivery is actually rated at 4*40A*1.3V=208W or that I'm sending more power through the FETs than is displayed in hwinfo?

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Between the ram and the chipset for the vGPU FETs.

 

Also, does anyone have a different opinion on whether a more powerful PSU is in order? If not, how come I'm fine in GPU only tasks but not with GPU+CPU?

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Get a wall socket power monitor when really pushing so you are aware of system draw. Obviously you will be measuring brick losses there too.

 

No I'm already aware of the system draw. So far the highest I've seen is ~230W but the theoretical peak is ~250W

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hwinfo64 will report the actual power draw. I'm just saying that the 40A per FET is only an estimate as we don't exactly know the voltage the core's power circuit is generating and how much power is being used outside the core.

 

Remind me of your brick again?

 

It's the stock 180W one.

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Then yeah you are pushing it very hard, right to the limit in fact.

 

So the 230W is a good investment?

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I think it could help.

 

Oh yeah, about the 2 phases and 4 FETs. Those are only for the GPU core right? Not vram or the rest of the system?

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Yes, those ones between the GPU core and CPU fan are dedicated to the GPU core alone.

 

Ok, does the GPU power sensor in hwinfo display the power for the whole package, or just the core?

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Only Nvidia knows what it means. HWiNFO just reads back the value from NvML/NvAPI.

 

I have tried my best to overclock the P870KM1-G using the stock Clevo BIOS. What's worrying me is that 3DMark (Time Spy) has displayed my 1080 GTX SLI GPU at 1792MHz, when I tuned it at roughly 2088MHz. Is this because the turbo boosts never stays at a constant speed? Is this the thing that users go on about with a stock Clevo BIOS? or did 3DMark misread my clocks? Please see photo below:


Link to 3DMark Time Spy 1080 Notebooks: https://www.3dmark.com/search#/?mod...u/spy/P/1104/500000?minScore=0&gpuName=NVIDIA GeForce GTX 1080 (Notebook)

I will do Fire Strike benchmark soon. I soooo need to try that Prema Bios ...

 

From the last post above. I have been experimenting on overclocking while gaming. And I have noticed my clock speeds dropping now. But it only happens at a certain point of a certain time in some games, and Witcher 3 is one of them. It's the point when I have a race with the girl at the beginning of the game (I have tried this now multiple times). The 7700K CPU goes up and down like crazy. This ONLY happen when I go above 4.7GHz overclock though. Now, I'm thinking this is why 3DMark is reading my clocks lower than they actually are. I'm not the top banana when it comes to overclocking. So can some please explain why this clock speed swings is happening. I know it's not thermal throttling because my temps are quite low. I think it maybe the voltage for the CPU needs tuning? or it's the game? or its the drivers? or its the stock Clevo BIOS or I'm missing something? can someone please enlighten me.
I have made a video playing Witcher 3 at 4.9GHz on the 7700K CPU and 2100Mhz on the 1080 SLI GPU's. I hope this helps me with an answer.

 

Exactly how would I cool the power delivery? Do you know of previous successful attempts? Also, can you check the power delivery temp through software or do I need a thermocouple?

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There is no on board temp monitoring for power FETs, which is why when they overheat they blow up. With a thermocouple you will need to be careful to not have it make any shorts.

 

Very good tweaked system Sir, I got in mind only 2 factor at moment, AVX ratio offset setting in BIOS ( PUBG for example use that instruction set, so I leave on 0) or some "windows power settings" not exposed (in that case search on guru3d for a good sw gui to expose all without regedit it),
Cheers

 

Soldered vs MXM may be different is the only thing so I am not sure.

 

I'm looking forward to running a 8700K on KM1.


https://be.hardware.info/nieuws/543...el-coffee-lake-cpu-werkend-op-z170-moederbord

 

Thank you for the compliment and sharing your thoughts bro ..

But sh!ts changing here for me, thanks to @Prema

I just got a custom PremaMod BIOS for my P870KMX. Time to tinker about with it

Make a donation to Prema! What a talented man he is. Thank you so much brother Prema.

*Do NOT even think about messaging me asking for a Prema BIOS. You will be insulting me. I will IGNORE you. You know where Prema is. Treat him right!*

"Everything has a price!
The price to be paid for enduring happiness is Divine Love. Without Love, no object can give you real happiness!"


My boot screen

*This was taken by a mobile phone camera. There may be some picture distortion*

 

Lol, that will certainly draw heads ^-^

 

I like how that one boot image looks like! Really nice!

 

I would not mind paying a good amount for a modded Bios from Prema to make this happen. Same socket.... I would think is defiantly possible.

 

same thing

 

http://hwbot.org/submission/3728203_papusan_cinebench___r11.5_core_i7_7700k_11.39_points?recalculate=true
Edit. http://hwbot.org/submission/3728564_papusan_cinebench___r11.5_core_i7_7700k_12.39_points

 

P870KMX Powered By PremaMod. Cinebench R15. 7700K @ 5GHz overclock. 1060CB score. 90c Max@123 watt on CPU. Ambient temp at 28c. HWiNFO64 upload time 2 minutes from the start to the end of the test. Max fans. Screenshot at 7680x1440 Nvidia surround plus 1080P accessory. 4x External displays in total. I should have ran the test on one screen... Maybe next time at 5.1GHz

 

Deus Ex: Mankind divided overclock benchmark and gameplay.
P870KMx-G Prema Mod BIOS
7700K @ 5GHz
2x 1080 GTX SLI @ 2100Mhz core and 1375MHz on GPU memory.
64GB 2666MHz RAM
Ambient temp at 28c
1440P

 

Nice score bro!
The Cinebench score on this (Mr Fox) screen shot is 1144CB from a 7700K, This has beaten your old score of 1080CB. I think someone needs to update the main scoreboard on the 1st page of this thread please.

 

Your cinebench is too low for 5 ghz.
I got 1072 at 4.8 ghz and 1083 at 4.9 ghz on a BGA turdbook.

 

Cheers bro. Thank you for letting me know. It maybe because I did the test while 4 external displays was present. Back to the drawing board for me...

 

How about DX12? IIRC, SLI works better in DX12 in that game.

Oh also you were running in borderless, which reduces scaling/performance a bit. You have to turn on exclusive fullscreen.

 

Great video man but your benchmark score is odd since I'm getting the same numbers at stock gpu clocks, cpu running at 4.5 and 32 gb of memory. This on DX12.

 

Thank you for informing me. I will check it out.
Just a few questions please:
What display driver version are you running? Do you have the Prema Bios? What RAM are you using?
Is it exactly the same settings on the video, down to the tee?

Edit: I'm on DirectX 11. Maybe 12 is different.