R89-Hardware/Thermal/case issue feedback here

[oman]

... but the kernel doesn't determine the CPU temperature... always at 2°C... a really cool device...
[ATTACH=CONFIG]7726[/ATTACH]

The temperature can show by

cat /sys/class/hwmon/hwmon1/device/temp0_input

I test it running CPU Prime Benchmark,after several mins,then:

root@rk3288:/ # cat /sys/class/hwmon/hwmon1/device/temp0_input
cat /sys/class/hwmon/hwmon1/device/temp0_input
102

But still running...

Maybe it seams so, this kernel/SoC also know thermal throttling?
Because after ~15 minutes at 100% cpu usage, it begins to throttle, BUT we talk about "after ~15 minutes" and not about ~1 minute like the s802 AND not so often happens (also not after one more 10 minutes)
Unbelievable!
[ATTACH=CONFIG]7727[/ATTACH] [ATTACH=CONFIG]7728[/ATTACH]

The case, especially at the bottom, gets really warm/hot.
At the middle of the second picture you can see what ?maybe? happens if I lift a little bit up the case: less thermal throttling
So I think you really should use more space to the surface (I place the box at a glass table)...

BTW:
At my stress tests at s802 (http://www.freaktab.com/showthread.p...-Test-Scenario) I had the problem, if I switch between the apps, they may crash (e.g. 'StabilityTest (ROOT optional)' => classic test) or reset the GUI (e.g. 'System Tuner Pro' => monitoring) so I have to know how to handle it (at which moment switch to which app)...
BUT not at the RK3288 (ok, the curves may pause BUT no crashes)...

Tom,could you do the Stress test Scenario for R89?

[no_spam_for_me]

The real Debug port:
...

such as Easter
which kind of cable or which way do you use to connect to this really small tiny spots at back of the pcb?

[Talas]

... but the kernel doesn't determine the CPU temperature... always at 2°C... a really cool device...
[ATTACH=CONFIG]7726[/ATTACH]

Yep the most thermally stable android box/chipset ive tested.

[Talas]

I can confirm that. The spdif cable is not "in" all the way too due to the design.

Yep just needed some trimming that flap surprised this was missed.

[ENDRJUPL]

TBH I don't like the Casing at all cos back I/O part also is very problematic , its quite hard to insert HDMI cable etc.

I can confirm that. The spdif cable is not "in" all the way too due to the design.

[TMx]

Harmony has the S89 in their data base? I used the learning mode to teach each button from my Tronsmart S89H remote to my Harmony remote.

Yes !

They probably get that from your profile if you've synched your remote

[clarkss12]

Downloaded Vega S89 Profile to my Harmony Remote , IR reception is terrible !

Due to interesting design of the Top Casing IR LED blocked almost 60-70% !!!

Board should be mounted Lower if possible or a Bigger IR Window is essential...

TBH I don't like the Casing at all cos back I/O part also is very problematic , its quite hard to insert HDMI cable etc.

Harmony has the S89 in their data base? I used the learning mode to teach each button from my Tronsmart S89H remote to my Harmony remote.

[TMx]

Downloaded Vega S89 Profile to my Harmony Remote , IR reception is terrible !

Due to interesting design of the Top Casing IR LED blocked almost 60-70% !!!

Board should be mounted Lower if possible or a Bigger IR Window is essential...

TBH I don't like the Casing at all cos back I/O part also is very problematic , its quite hard to insert HDMI cable etc.

[4WheelSpyder]

There are solder points for an unused USB port to the left of the microphone at the front of the board. Feel free to solder a cable on and connect a webcam. Only needs a whole in the case.

I wondered if that USB port is active, maybe oman could tell.

[Arbelzapf]

There are solder points for an unused USB port to the left of the microphone at the front of the board. Feel free to solder a cable on and connect a webcam. Only needs a whole in the case.

I wasn't aware this was a microphone, I assumed it to be the IR receiver. Nice!

[4WheelSpyder]

Built in microphone

For in case you are not aware of this feature. After opening the unit (only the two Philips screws at the back) I noticed the microphone in the cover. So I tested it with Ask Google, Sound recording and Skype, and it works nice and clear. Now just to populate the camera sensor that could go with it.

[4WheelSpyder]

Maybe it seams so, this kernel/SoC also know thermal throttling?

At the middle of the second picture you can see what ?maybe? happens if I lift a little bit up the case: less thermal throttling
.

Your findings confirm what I was expecting. The bottom of box is also a heat exchanger and having a very small air gap is the worst case scenario, - ie no conduction and minimal air flow for convection.

[4WheelSpyder]

AV Cable

So that means I should switch around the 3 output cables to see if there's a working setup?

Found an AV cable in one of my "magic" boxes. I must have gotten it as part of a toy package. It is a really cheap one so some of the symptoms that I have found could be contributed to the "cheapness". Connecting it to a small portable LCD TV I did get a surprisingly good quality video - in 480i SD though. The initial connection was very noisy but it settled after a few seconds. However, what I have found is that unplugging the white audio cable from the TV unsettles the video and would sometimes affect the wifi in so much that the network connection is lost. Sound comes through perfectly with all three cables connected.

I measured the cable and all screens are inter-connected and all screens on the TV are also inter-connected, so it is not as if the video requires one of the screens on the audio cable, but due to the "cheapness" there may be intermittent connection which my measurements are not picking up .

The connections on the AV cable's 3.5mm connector are as follow: (as seen from the tip)

Red, White, Yellow, Screen

Hope this helps

[no_spam_for_me]

thermal throttling?

Maybe it seams so, this kernel/SoC also know thermal throttling?
Because after ~15 minutes at 100% cpu usage, it begins to throttle, BUT we talk about "after ~15 minutes" and not about ~1 minute like the s802 AND not so often happens (also not after one more 10 minutes)
Unbelievable!


The case, especially at the bottom, gets really warm/hot.
At the middle of the second picture you can see what ?maybe? happens if I lift a little bit up the case: less thermal throttling
So I think you really should use more space to the surface (I place the box at a glass table)...

BTW:
At my stress tests at s802 (http://www.freaktab.com/showthread.p...-Test-Scenario) I had the problem, if I switch between the apps, they may crash (e.g. 'StabilityTest (ROOT optional)' => classic test) or reset the GUI (e.g. 'System Tuner Pro' => monitoring) so I have to know how to handle it (at which moment switch to which app)...
BUT not at the RK3288 (ok, the curves may pause BUT no crashes)...

[no_spam_for_me]

Is it an issue or not...

... but the kernel doesn't determine the CPU temperature... always at 2°C... a really cool device...