yashsingh1/xdaforums huggingface dataset:
[MTCD Hardware Development] woozie.2007:
This is what i made with your help, in idle i have 13 degrees, and full load maximum 75 degrees. Thank you all, especially giouncino
[MTCD Hardware Development] giouncino:
Very good job! This intel heatsink with copper core is simply perfect! Well done!
[MTCD Hardware Development] IloveJapan:
Hello,

I've improved the cooling on my PX6. First I've check how Rockchip CPU is link to the radiator: It's a poor quality thermal pad (not correctly centered)

I've tested if I can use thermal paste instead of thermal pad, but distance from SOC cover to the radiator is to far to be better than pad.

So I changed original pad to an high quality pad, correctly centered.

then I installed an Intel CPU radiator over the original one (with thermal paste between the 2 radiators) to improve heat exchange:

I was needed to cut lot of fins to be sure to create no interference with other component on the SOM.

Fitted in the unit:

I've tested the modification with several geekbench loops, temperature was 20°C less, but heat seemed to stay inside the unit enclosure. So I tested without top cover and temperature drop again 10°C. So I decided to modify top cover, without installation of a fan, to create a natural airflow.

Results are good, now the SOC never throttle, even after 5 loops of geekbench or GFX bench, temperature increase slowly from 45°C (idle) until reaching a maximum of 72°C
[MTCD Hardware Development] kmlnvm:
I don't know if these holes are ok because after sometime unit can collect dust inside.
[MTCD Hardware Development] nic2k:
Maybe it depends where you live but I've never pulled out a car radio that was covered in dust even after years in the car. The inside of a dashboard is a pretty clean place compared to the rest of the car or my garage.
[MTCD Hardware Development] uncleee:
heatsink

If you put a heatsink on top of origenel heatsink of px5 som board can you cover the holes with heatsink or leave them open ? i think if you cover them theres no airflow for the holes i saw a lot of fotos with the heatsink covering them?
[MTCD Hardware Development] giouncino:
The holes on original metal plate are totally useless, don't worry
[MTCD Hardware Development] nic2k:
I suspect the holes are mostly there for appearance and maybe to reduce the weight rather than allow airflow. There's not much gap at the base to allow air in and through the holes and most of the convection would be around the outside of the plate. The plate is an EMI shield for the electronic components. The material and finish is less than ideal for a heatsink but it was just convenient to use it to give the SoC the extra cooling it would need in the car environment. Those SoC are meant to be used without heatsink in things like tablets and TV boxes.
[MTCD Hardware Development] woozie.2007:
since i made the modification on my unit, no one random reboot, no any stop of app, everything works perfect, before i made the mod, especially apps for navigation after around 150km, gave me force close and i had to open it again, but now i made 3000 km with waze and igo and nothing happened, it works continously without any stuck.
[MTCD Hardware Development] Barreto:
Hi.

I've been following this thread for a while now. Had a PX3 and just bought a PX6, so I was waiting on the new unit to try these mods.

What do you guys think of applying a heatsink directly on the chip? IE: remove the top plate (original heatsink), stick a heatsink (from a raspberry pi, maybe?) directly on the CPU chip and leave it like that. This would improve heat dissipation because there would be direct contact between the chip and the new heatsink.

As far I can tell from the pictures above, the other chips don't make contact with the top plate (og heatsink), so there shouldn't be a problem leaving them in the "open", right?

I've used small heatsinks on rasp pis before and they do a good job... I'm talking about something like the blue one on this site

I don't mind trying it, I just would like to know if you guys know of any reason not to do it. Or if you think this heatsink is too small to keep the temps in check.

Thank you

(and good job on your mods, they are really cool)
[MTCD Hardware Development] giouncino:
This kind of heatsink are good for cool down ram modules generally, I would use a bigger heatsink for the soc, even if it is only a 4.5w the temps of this chip raise very quicky, so it's a good idea to use a bigger heatsink.

Other than that it's perfect to remove the metal plate and put heatsink in direct contact with the SOC, but you should manage to stick the heatsink firmly and it's not simple considering car vibrations during use that can break the chip.
[MTCD Hardware Development] Barreto:
Yes, I see your point.

Unfortunately, I don't think I can find a heatsink that is small enough to just stick to the chip and big enough to provide enough heat dissipation. Seeing that you guys are successfully getting temps down with a heatsink stuck to the plate, I might just buy 2 of these (40x40x30mm) and put them there.

BTW: replacing the thermal pad between the chip and the top plate makes a big difference? I was thinking of buying something like this. Do you know what thickness I should buy? They go from 0.5mm to 2mm

Again, thank you for your inputs.
[MTCD Hardware Development] giouncino:
i bought this one:

https://www.amazon.it/gp/product/B07PNL9C1Q/ref=ppx_yo_dt_b_asin_title_o02_s01?ie=UTF8&psc=1

and used 0.5mm to replace original thermal pad.

buying two heatisink 40x40x30 should be sufficient to see a good difference in temps
[MTCD Hardware Development] marchnz:
I'll say it again; use thermal adhesive - you want a very thin layer between the source and sink.

Thermal adhesive is readily available from most electronic suppliers or online.
[MTCD Hardware Development] Barreto:
As far as I understand it, there is a significant gap between the chip and the top plate. [MENTION=8748931]IloveJapan[/MENTION] tried using thermal paste and said it wasn't making significant contact (and the pictures showed it)

Going with [MENTION=9982505]giouncino[/MENTION] info, I'll be using a 0.5mm thermal pad.

Do you think this is not the best way to go? What is the difference between a thermal pad and thermal adhesive?
[MTCD Hardware Development] giouncino:
Yes, the gap is significant.

I don't know if thermal adhesive is strong enough to keep a big and heavy heatsink in place, In my case I don't think so. But with a 40x40x30 light heatsink as yours it could be sufficient and probably you can use thermal adhesive directly on Rockchip SoC, removing the metal plate.
[MTCD Hardware Development] nic2k:
Not a good idea to have a BGA chip carry the weight of a heatsink those little solder balls don't do too well under mechanical stress. The heatsink should be attached to the PCB. The plate is screwed to the PCB so it can hold the weight of the heatsink no problem.
[MTCD Hardware Development] Barreto:
Yeah, you guys are prob right. The heatsink is really light, but the vibrations from a moving car could make it bounce a lot and damage the chip...

I will just replace the thermal pad between the chip and top plate, remount the top plate and attach the heatsinks to this plate.

I tested temps this weekend, and they were around 80C with music+GoogleMaps. Outside (ambient) temps were around 30C. (under stress was about 95C, but that is not normal use...)

If it lowers 20C, I'll be happy.

I will try to post some pics of the procedure when I receive the materials. (it shouldn't be very different from [MENTION=8748931]IloveJapan[/MENTION] post, but nevertheless...)

It should take about 1 month or so...
[MTCD Hardware Development] ZigBrick:
Thanks all for the ideas. I had throttling problems with my unit when I parked in direct sunlight. It can easily reach 40° Celsius under the shade in summer here, so imagine how it is like inside a car parked in direct sunlight for a few hours in such a climate.

I used a simpler approach though.. bolted a single 60mm 12v fan directly on top of the PX5 metal cover using the same screws. Fed the power from a 9v regulator to help bring the speed down and decrease the fan noise. Also added a hidden switch to turn off the fan completely when it's winter and unneeded.

Now everything is perfect. Within a few seconds from turning on the ignition and A/C, the CPU temperature drops from like 70° Celsius to like 50° Celsius! I can even run a stress test with no observed throttling in such temperature conditions.
[MTCD Hardware Development] Forester_Diesel_CVT:
Hello,

i had issue with my rear cam - a fan and some mods fixed it!

......here you can read about it:

https://xdaforums.com/android-auto/...s-general/wired-rear-cam-issue-fixed-t3964902

.......it's a PX6 but doesn't matter.

Passive heatsink doesn't work i tried this before :crying:

I used a termal paste not a pad, because it can deliver more heat (12W)

Best regards
[MTCD Hardware Development] Al Ferro:
Hi, has anyone tried this yet? https://www.youtube.com/watch?v=S_oNrJJJWiY
[MTCD Hardware Development] marchnz:
Appears from the tests that the heatsink requires airflow to be effective.

Simpler "off the shelf" solutions work as good/better with airflow and suggest that only a small fan is needed with case modification to support airflow - as I found with my mods.
[MTCD Hardware Development] aysat:
Hi guys,

We are talking about a 5W chip here only and i see guys adding huge heatsinks without changing any thermalpad or doing some modification on the coreboard heatsink. Not very efficient unless you find out where exactly the heat dissipation is being restricted in the very first place ( or closer to restricted area as much as possible ) which is the thermal pad in this case. You must get rid of it first.

What i did ;

- Removed crappy thermal pad from the chip

- Sanded coreboard heatsink equally to reduce the gap between the chip and the heatsink

- Applied High Performance ( thermal conductivity 5 W/mK ) thermal paste on the chip

- Put an alumina ceramic pad 20x25x0.5 ( thermal conductivity 29 W/mK ) in between the chip and the coreboard heatsink

- Applied same thermal paste between ceramic pad and coreboard heatsink

- Applied same thermal paste between the crappy vga heatsink and the coreboard

- Soldered the fan to the voltage regulator

Never exceeded 80 C under torture tests. Hope this helps.

I will post my results after i drop some posts lol

Regards,
[MTCD Hardware Development] Forester_Diesel_CVT:
Hello,

........yes the gap between the chip and heatsink is the biggest problem - i was very surprised when i disassembled the coreboard!!

No pressure marks on the termalpad - i recognized that immediately.

Sad thing - that makes a great product crappy save up some cents...

After modifying the heatsink "feets" and adding good termalpaste i never had any problem again!

Best regards
[MTCD Hardware Development] giouncino:
I stated the same things months ago: a fan is useless on a 5W chip.
[MTCD Hardware Development] Forester_Diesel_CVT:
Hello,

.......but i tried same heatsink mod with and without fan - without fan i had the same issue (no rear cam) some minutes later.

What torture test did you run on your unit?

Best regards
[MTCD Hardware Development] aysat:
i have upgraded the thermal paste to gelid gc extreme and put a full copper heatsink on the internal heatsink and i will post the results ( if system allows me :) )

---------- Post added at 12:43 PM ---------- Previous post was at 12:39 PM ----------

i am also using cpu throttling test to monitor. is there any other apps you suggest ?
[MTCD Hardware Development] Barreto:
Hi again.

I modded the HU a while ago but didn't have time to post pics/results.

I bought 2 heatsinks with thermal adhesive. They are 40x40x30 aluminium pieces. They were suppose to go over the cover/heatplate

I also bought thermal pads They were supposed to go over the chip, between the chip and the cover/heatplate

When I was disassembling the HU, I found out that the cover/heatplate was glued to the mainboard. (it also had screws, but it had like 4 points of glue around) I didn't want to risk it being loose or fragile, so my initial thought of replacing the thermal pad was a no-go.

I just cleaned the top of the heatplate really well with alcohol and stuck 1 heatsink to it, in the center of the plate. Although the heatsinks are really light, I didn't want to risk the plate/board becoming loose with vibrations or bumps, so I just installed 1 instead of 2.

I'm really happy with the results. The temps came down from 80/90C to 45/50C (30C outside) with regular use (music/GMaps/Streaming TV).

The HU feels snappier, doesn't hang so much and it doesn't become unresponsive

If anybody wants an easy and really cheap way to lower your temps, I think this has good results.

Attaching pictures.
[MTCD Hardware Development] Snipeg:
I drilled hole for 30x30mm fan and connected it to 78M09 stabilizer (it was too loud when on 12V). Power is present there only when unit is ON
[MTCD Hardware Development] optimvs:
Good job, well done.
[MTCD Hardware Development] felix297:
I did the same modification as Barreto to my 'Pumpkin' PX6 Headunit. Before modding soc temps quickly exceeded 95°c. It had a pretty small heatspreader mounted with some bad adhesive thermal pad from the factory. After I replaced the heatsink + pad soc temps seem to be nowhere near before, around 45-55°c
[MTCD Hardware Development] Vladimei:
Hi Aysat

How much is the gap in millimeters between the chip and the unmodified heatsink coreboard?

I think it will be difficult for me to lower the feets of the heatsink coreboard and make it level. I wanted to buy the ceramic alumina pads that you have recommended, but I guess I will need a thicker pad. It had looks of 20x25x0.6mm, but it could still need 1mm or more. The pads are:

m.es.aliexpress.com/item/4000063252698.html?trace=wwwdetail2mobilesitedetail&gps-id=storeRecommendH5&scm=1007.18500.139671.0&scm_id=1007.18500.139671.0&scm-url=1007.18500.139671.0&pvid=76bfd799-c4d0-49b2-b6b1-d130028bf76f&_t=gps-id:storeRecommendH5,scm-url:1007.18500.139671.0,pvid:76bfd799-c4d0-49b2-b6b1-d130028bf76f&spm=a2g0n.detail-amp.store-card.4000063252698&aff_trace_key=46452989b17943799d2faca5d51befbb-1583882337671-02448-UneMJZVf&aff_platform=msite&m_page_id=9257amp-l97tuD5TMApeQTU6AaumpA1583982495944&browser_id=c26348896f9c4dc483b9ea6f816bb397&is_c=N

I will use the thermal paste Thermal Grizzly Kryonaut with 12.5 w/mk, which I use for my pc and it is excellent (a little expensive but with very good performance)

As for the heatsink, I have to look for a low profile one because it is a 1din radio with a dvd player and there won't be much space. Thanks in advance and good work you are doing with the bad work that the Chinese have done with the dissipation system!
[MTCD Hardware Development] Paul1965:
There is some good info shared here, thanks everyone!
[MTCD Hardware Development] pixel1:
Hi, like most of you I would like to do this mod and cool the PX5 RK 3066 chip a bit.The pictures and posts made by wizzsb and IloveJapan helped me a lot. Considering the data sheet of RK 3066, if I interpret it correctly the dimensions of the chip itself are about 20x20mm (more precisely 19x19mm base and, top ie. the upper surface is 17.6x 17.6mm).If that’s true I can put a 20x 20mm pure copper plate as a heat conductor, right? The only question left is whether the thickness of the 0.5 mm copper plate is sufficient, or maybe it should be thicker (0.8 or even 1.00 mm)?

Finally, let me ask you if it was complicated to separate the cover from the core-board. I haven't seen the screws anywhere, except for the main ones that hold the core-board to MB. Is held only on adhesive, or what is it?
[MTCD Hardware Development] Pacote-san:
I'm surprised to see people doing this mod and NOT mentioning kernel adiutor. One of the best things you could do with a PX3/5/6 unit is edit the kernel interactive to make it go full speed after 60% load, heck with this mods you can turn it to performance and let big.little cores go full speed all the time.

This makes the experience so smoother and it was the reason for me to proper mount a heatsink directly to the SoC.
[MTCD Hardware Development] shzlmnzl:
Do you have an link how it to do?
[MTCD Hardware Development] Pacote-san:
https://xdaforums.com/t/massive-lag...rooted-joying-and-other-rockchip-hus.3480078/
[MTCD Hardware Development] marchnz:
Ive mentioned it a bunch.
[MTCD Hardware Development] Pacote-san:
I must have missed that, sorry.

Im doing a few tests and using heatsink directly to the SoC + a 24v fan running at 12V Im getting such great results that will test it running at 9v.

12V is silent enough but since with cpu stress (little cores at 1.2Ghz and big at 1.512Ghz) Im getting at most 60c, I think 9v will do just fine, heck probably 7v would work fine. (<80c)

Heatsink alone wasnt cutting if I configured the CPU to run at max speed almost all the time. With default config it would run just fine but the performance difference when you make it run full speed is considerable. (switching between waze and spotify via wheel button is pretty much instant and so on)

Even with the top cover off it would quickly reach > 80c degree and with the top cover on, it would throttle in a few minutes when using CPU stress test.

*ignore the wires soldered to the px5, it was for the DSP mod that I ended up taking it off.

Notice that the 4 little core was not even running at full speed cause I forgot to set it up, so temps would be even worse.

Now after the fan mod

Big full speed but forgot to set little cores

Everything at full speed for 4 minutes

I ran the full test a few times and it didnt go over that temp.

Will try it out with 9v later.
[MTCD Hardware Development] Pacote-san:
So here is the results running the 24v fan at 9v.

Total silence, cant hear the fan at all when everything is mounted since the 1din is behind the AC controls

This is the temp while idle (40c)

While using Waze only I get 45c and while using waze and listening to spotify I get 52c *This of course with kernel opened aswell. Im sure without it it would run a few degrees cooler.

Running a stress test while using kernel and listening to spotify in the background got me to 77c max

When I pause the music I instantly get a 5 degrees drop

The fan and heatsinks I already had laying around here. All I had to do was to cut the heatsinks to size. Just used some Artic Silver knock Off I got and small drops of J-B Weld (quickset) on the corners of SoC and chips.

Huge upgrade for me because running all the cores at full speed make the OS so much faster!
[MTCD Hardware Development] Ahto42:
But what do to when the CPU is underside the mainboard?
[MTCD Hardware Development] Ahto42:
I added some folium tape under the cpu with cooling pase. Then added a 80mm vent on top on it, Drilled few holes to the bottom to vent the air out.

I gained like 10c. Before the went, the temp went to 84c. Now it stays 73-74, Added to the cpu test- Youtube vanced, waze ,chrome where on the background
[MTCD Hardware Development] focccus:
What is this test software (in left window)?
[MTCD Hardware Development] dandu3:
it's CPU Throttling Test on the Play Store

CPU Throttling Test - Apps on Google Play

App measures CPU performance over time to determine if there is throttling

play.google.com
[MTCD Hardware Development] marchnz:
Not an MTCD/E device.
[MTCD Hardware Development] Ahto42:
Mine is rk3368 and s32f mcu
[MTCD Hardware Development] tranceonline:
Soooo i did this very bad setup just to test it and this alone dropped the temps from 100° C down to like 75°C!!

Almost 30°C just with a bad small cooler and a big 120 mm Fan on top of it.

I had throtteling to 75% most of the time before.

With this setup, it runs with 91% of the power most of the time.

I will put good thermal pads on top of it and than put a 40mm Cooler with a 400mm Fan on the SoB.

Plus a 120 mm Fan in the top-lid for heat-dissipation.
[MTCD Hardware Development] angelparras:
I have installed mine today, NOCTUA 60mm fan.

I had to remove the heat sink disipator and make one new hole to fit the fan, after that, i take one fan connector alarguer and soldered it to the main connector in the back of the Main Board, Negative and ACC positive. Everything is perfect now. Also i changed the thermal pads and added Thermal Paste Artic Cooling.
[MTCD Hardware Development] rigattoni:
TBH: I would NOT recommend to mount additional weight onto the board. That´s something for stationary usage, but in the car you have too much shaking and punches on bad roads all over the world. The mounts of the board and the board itself is not constructed to resist this for a long time.

Remove the fan and mount it in the lid of the unit as shown HERE!. It´s much more safe and the cooling is at least better than a directly mounted fan... and of course the Noctuas don´t have a huge air flow.

Remove the thermal pad and use a high quality thermal paste instead, but don´t bring additional weight onto the boards.

A 60mm fan in the mostly open lid in my PX6 keeps the unit bejond 70°C in hot weather. Just now in wintertime it is no more than 50°C even when using the throttling app.
[Miscellaneous Android Development] sladf:
Please provide the rom. the file is not available on the link
[Miscellaneous Android Development] Oswald Boelcke:
@androiabledroid Thread closed! Please advise to reopen when ready to provide a workable download link.

Regards

Oswald Boelcke
[General Questions and Answers] myabc:
good morning. please help. is there a way for repeat every 2 minutes the missed notifications of whatsapp?

i have huawei mate 10 pro with oreo.

i hope an answer
[OnePlus 5 Questions & Answers] braschlosan:
I cannot complete a full backup. It gets to 98% and fails with the following error

I:addFile '/data/system_ce/0/recent_images/18314_activity_icon_1528351915071.png' including root: 1 ==> set selinux context: u:object_r:system_data_file:s0 I:addFile '/data/system_ce/999' including root: 1 ==> set selinux context: u:object_r:system_data_file:s0 failed to lookup tar policy for '/data/system_ce/999' - 'a502596862cdda88' I:Error adding file '/data/system_ce/999' to '/data/media/0/TWRP/BACKUPS/89b79b75/2018-06-07--01-14-13/data.ext4.win008' Error creating backup. I:ERROR tarList for thread ID 0 Error creating backup. I:InfoManager saving '/data/media/0/TWRP/BACKUPS/89b79b75/2018-06-07--01-14-13/data.info' createTarFork() process ended with ERROR: 255 Backup Failed. Cleaning Backup Folder. I:Copying file /tmp/recovery.log to /data/media/0/TWRP/BACKUPS/89b79b75/2018-06-07--01-14-13/recovery.log
[OnePlus 5 Questions & Answers] braschlosan:
Inside that folder there are screenshots of everything I'm doing on the phone! Lots of sensitive information like my PayPal or email. Is this part of the operating system or some type of Spyware?!

I'm finding many mentions of these folders on various forums and threads but the only hint is that it's related to parallel apps and the user has to be deleted. That still doesn't explain to me why it's taking screenshots of my activities

https://xdaforums.com/showpost.php?p=75342215&postcount=180
[OnePlus 5 Questions & Answers] braschlosan:
I was able to finish the backup by booting back to the os and running the following from a terminal

su

pm remove-user 999

I'd still like to know why the system is screenshotting all of my apps
[OnePlus 5 Questions & Answers] strongst:
Probably your phone is hijacked or as you suspect Spyware/other apps.

I would to format your internal storage and every other partition. After a clean installation of your OS check your network usage with glasswire for example to see if something is using your traffic.
[OnePlus 5 Questions & Answers] Spinvis:
Seems like it's AOSP recents feature; https://xdaforums.com/showpost.php?p=70361290&postcount=7641
[Samsung Galaxy Note 8 Questions and Answers] Soroush78:
Hi guys i want to buy a vr headset for note 8 and i want to know dose note 8 fit in vr box ? I dont like to pay much for gear vr note 8