K9C3 Teclast X98 Pro

[William]

and its 8mm thick. (measured with digital callipers, but just cheap ones)

has gotten warm in my hands just doing basic things, but havent looked at the internal temps.  so its possible that they’ve put a better heat spreader to let the heat go through to the rear case.

i’ll check that all out tonight. (its 11:42am here at the moment and my university test on zener Diodes is at 2:30pm so i’ll post more info after that)

[William]

Here are the read/Write speeds

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[Chris G]

Great, you got your one. Please run HWinfo on it and have a look and see if the temps reach 80+ Is it Windows Home or Pro?

Also reach and check for KMSpico if its got Windows Pro on it. I have a feeling they have figure how to install English on the Chinese only models and then hack the activation. I hope I’m wrong. Whatever you do, do reset it, it might revert to being all in Chinese again.

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[William]

I ran MSI’s kombuster to stress the cpu and gpu to 100%, temps got into the. 80’s, but I didn’t see it hit 86.

I checked the clock speed and it throttled back to its base clock under that huge load I was giving it, which in no way would reflect a real world situation.

The maximum power the cpu used up was about 6 watts according to cpuz’s hwmonitor.  This would explain the reduced battery life and higher heat output than the previous gen. (Might want to run this software on an Air 2 to confirm it’s power useage)

 

I’ll be buying some 14w/mk thermal pads to replace the ones that are already in it and I’ll see what it does to the temps.  I’m also going to see how it goes with playing crysis :-p to answer the age long question every gamer used to ask “but can it play crysis”

[Chris G]

Hi,

 

That seems better than my unit as mine would hit 86 degrees. I have just posted this video (below) comparing it to my C5J6 Air 3G. Does it come with Windows 10 Pro or Home. It should be home, if it’s Pro check for KMSPico, run a search for that as Bangood.com might have done a naughty and upgraded to Windows 10 Pro from the Chinese single OS version and then hack the activation. I hope not.

 

Chris | Admin
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[rich t]

Hitting 86c with throttling web surfing. It is an international ver from banggood. Wondering if i open it, to add copper shims and better thermal tape, will it go back together as tight as it is now? I am concerned with it creaking and being loose. Any thoughts??

[William]

its come with windows 10 Home edition.

i havent been able to get mine to hit 86*C,  but at 80*C it turns off all of the turbo function, staying at 1.4ghz.

i’ll open it up either this weekend or next, and put in a 17w/mk thermal pads, and see how the temperatures change.  just want to have a few days of usage so i can get an idea oh how warm it gets under normal useage, so i know how much of a difference the new thermal pads would make.

[William]

also thought i should mention, it appears that chrome is no longer laggy on the x98 pro, i think they have put out an update, but it scrolls quite well now 🙂 loving the face that i now have access to all my bookmarks, but 125% scaling doesnt work very well for getting to the setings etc, i think it really needs to be 150% in windows for chrome to be usable, i keep clicking close instead of the settings button.

 

also the windows 10 keyboard is quite nice to type on once you get a case that gives the screen an ipad like incline, i wrote this comment at a reasonable speed and as if it was a keyboard with mot of my fingers, and although its tiring having to hold my hands up above the scree, unable to set them down.  you can write quite quickly

[rich t]

Wondering if a bios update is in order? Why are the cores at fullspeed all the time?

William wrote:

its come with windows 10 Home edition. i havent been able to get mine to hit 86*C, but at 80*C it turns off all of the turbo function, staying at 1.4ghz. i’ll open it up either this weekend or next, and put in a 17w/mk thermal pads, and see how the temperatures change. just want to have a few days of usage so i can get an idea oh how warm it gets under normal useage, so i know how much of a difference the new thermal pads would make.

Just goes to show you how quality control is non existent in China. These companies could compete with bigger companies if they just had some QC.

[William]

theyre not at full speed all the time…. accoding to cpuz my cpu gets down to 479hz.

 

its not qc, its the fat that theyre making it to a budget.  at the end of the day, you always get what you pay for.  to make a tablet cheaply, they have to cut corners.  putting a higher quality thermal pad on the cpu and between the cpu and the case would fix a lot of the thermals. but at the end of the day, that costs money to do.

[rich t]

Got another idea…How about a thicker shim? Maybe 2 or 3mm, but eliminate the stock heat shield? Thoughts?

[Chris G]

I think if we could have a larger copper shield and then have it 0.5mm thicker where the Atom Soc is to have contact with that. Then a thermal pad to connect with the rear housing we could move even more heat away from the SoC. My tablet with the 20mm x 20mm 1mm thin mod It did doesn’t throttle at all now. 80 degrees max when gaming and pushing the tablet hard. It’s very quick and snappy in Windows. Only gaming and that 12 EU GPU gets it up to 80 degrees otherwise it will never pass around 62 degrees and will hold 2.4 Ghz on all 4 cores.

I now think this is partly a bios issue, the chipset is meant to have a short turbo duration and then clock down after it’s short burst. But for some reason mine will sit and hold at 2.24Ghz the whole time. Looking at the Z3736F it will never turbo on all cores at the max speed. Only single threads for a little while. Watching the clocks in CPU-Z I think a bios update to limit the boost time limit would fix both the heat and battery life without reducing the overall performance too much.

 

Not even my Surface 3 would turbo at 2.4Ghz for as long as the X98 Pro.

 

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[rich t]

Chris G wrote:

I think if we could have a larger copper shield and then have it 0.5mm thicker where the Atom Soc is to have contact with that. Then a thermal pad to connect with the rear housing we could move even more heat away from the SoC. My tablet with the 20mm x 20mm 1mm thin mod It did doesn’t throttle at all now. 80 degrees max when gaming and pushing the tablet hard. It’s very quick and snappy in Windows. Only gaming and that 12 EU GPU gets it up to 80 degrees otherwise it will never pass around 62 degrees and will hold 2.4 Ghz on all 4 cores. I now think this is partly a bios issue, the chipset is meant to have a short turbo duration and then clock down after it’s short burst. But for some reason mine will sit and hold at 2.24Ghz the whole time. Looking at the Z3736F it will never turbo on all cores at the max speed. Only single threads for a little while. Watching the clocks in CPU-Z I think a bios update to limit the boost time limit would fix both the heat and battery life without reducing the overall performance too much. Not even my Surface 3 would turbo at 2.4Ghz for as long as the X98 Pro.

How big is the shield roughly? I may do your mod, but add the copper shield intead of the aluminum, or eliminate shield altogether, and use ram heatsink which should help. If i can get this thing to stay under 80, i will be happy. I think you have a driver issue for the cores, I dont think mine stay turbo’d as long as yours.

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[Chris G]

I’m thinking next time I do the mod to use a 20 x 20mm 1.2 (if it fits) mm thick copper shim over the Atom SoC. Paste it on with thermal adhesive then on the top also apply some paste and use a thin – 0.5mm heat spreader plate on top as big as I can. That should help conduct and draw away heat from the 1.2mm shim and hot Atom chip. The trick will be to line the inside of the heat spreader with some anti-static tape or insulation tape to stop any shorts.

Then add a 0.5mm 30 x 30 or larger thermal pad over the middle of where the Atom is that would make contact with the metal backing. The original tin spreader would be removed. (The air II models don’t have one so I don’t see it being an issue)

 

Or use a large 2mm thick 20 x 20mm shim on the Soc and put a 1mm or 0.5mm thermal pad on the top to contact with the copper shim and transfer heat to the housing.

A shim like this: http://www.ebay.co.uk/itm/KUPFER-2MM-GPU-Shim-Warmeleitpad-Laptop-Reparatur-Repair-Thermal-Pad-Copper-/121221353417?hash=item1c395b0fc9

The issue is if to much pressure is on the chipset or rear it will apply pressure on to the screen and cause the ips panel to touch the glass.

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[rich t]

I’m liking the 1st idea, maybe a 3 inch by 3inch copper plate can be used instead of old aluminum plate. If you are worried about shorts, just put some thermal pads over components that are under it, before you attach it. I believe with this method, we should be able to keep the CPU way below 80c even with heavy long term gaming.

[Author]

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