UMi Z Potentially missing performance?

nikster558

I recently got the UMi Z after much back and forthing between some of the phones out there, the final decision came down to the fact i have had a UMi Iron Pro before and liked it alot. So after receiving the phone and testing many different things and comparing with other devices i haven't found a single thing to complain about feature and quality wise. All aside after doing some benchmarks and testing in different possible ways the phone may be used i noticed that my results were very very inconsistent. So upon further looking into possible causes the main cause of the issue turned out to be thermal throttling from the chips to prevent overheating, after realising this i set up some of my own tests, for example i turned the phone off, left it in my porch for a little while until it was nice and cold on the back (I live in the UK with current ambient temps of 7-10c) then i turned the device on, ran the benchmark straight away and got 107000 on Antutu benchmark tests (previously when hot it only scored 87000, all other variable unchanged including loaded apps and running apps + battery was 80%+ both times). To my suprise i though, the phone still felt warm so what else could i do, so i used many fans and a cool enviromnment and this time keeping it cool i scored 118800 on the exact same test! That was 30% peformance increase just by keeping the phone at a cooler temperature, this then led me to think of a couple of possible ideas that may benefit future devices that are using the Helio X27 or X30 chipsets. I have attached some pictures of a really simple idea which could be good in the long run for longevity of the device and also satisfaction of people using it. First idea would be put a tiny super low profile fan inside the phone at the top, only needs to be 600rpm or so, and have it pull air in one side of the phone and push it out the other in turn cooling the phone, this could be set to activate at a certain temperature. The second idea was maybe produce a case for the phone, which has a fan on the case at the back, and pulls air in from the sides\back and then pushes it out the alternate side, this could be powered from the port on the phone, therefor when out and about gaming or doing any other heavy tasks, you could keep the phone cooler and still quiet and nice to use. UMi would be the first mobile phone manufacturer to implement this style.

Antutu Score while using fans and custom cooling

Raideon

nikster558 replied at 2017-2-28 06:53
That is why you use dust filters like what a desktop or laptop would use, what you think when they ...

Dustfilters with that size? Think about the perforation holes of the filter and the size of the holes in the phone itself. Phones are already build so compact that some manufacturer consider an AUX-port as too big. A fan would be a step back and the phone would be really bulky. Well placed headpipes and a more refined manufacturing process(10nm for Helio X30 and SD 835) would be the solution for performance/heat problems.

Kaluschke

Perfect idea, but please waterproof...

Raideon

Haha, that looks ridiculous . Problems would be dust inside the phone, which would lead to more heat.
Additional batterie drain, vibration, noise, moving parts are not reliable. And dont forget the additional thickness.
The aluminium unibody is already a good solution for heat dissipation. Maybe some well placed copper heatpipes could do the job.

nikster558

Raideon replied at 2017-2-28 05:29
Haha, that looks ridiculous  . Problems would be dust inside the phone, which would lead to more h ...

That is why you use dust filters like what a desktop or laptop would use, what you think when they moved from desktop to laptop they thought it wouldn't be possible, you are close minded. 600rpm wouldnt cause the slightest vibration, minimal battery drain aswell. Don't reply with your close minded rubbish when it wasn't aimed at you. Immature child.

nikster558

Kaluschke replied at 2017-2-28 03:24
Perfect idea, but please waterproof...

Yes about the waterproofing i was thinking about that, but then i just thought if they used smaller holes and had a filter inside, then it would prevent as much water as possible, the phone isn't waterproof anyway, like many of the other UMi phones, so it wouldn't be at any sort of loss, i am thinking of doing a test idea on my older Cubot H1, it has a big battery and spare room inside so could try with a little fan i have thats super low profile and would still fit inside anyway.

n00bzi11a

You can start by thinking of a design that suck air from one side and exhausting from the other.

Blackbird91

\n\nThe Umi Z or the Helio X27 has a massive temperature Problem.
It is loosing about 10000 points in 3D when it is warm/hotWhen the phone is cold, the 3D points are at 23000 or higher