AMLOGIC S905X - Inphic SPOT i7 PRO - A product development story...

[alwaysbless]

Nice, looking forward to these chips and also those new Realtek ones coming out!

[taki]

I think it must be easy to add ts1 and ts2 pin out tuner socket. May be wait s912 cpu for c+

[Inphic]

I think the dust and water no can to prevent good ventilation. You plan to use the i7 on the street ? On TVs, monitors, satellite tuners - lots of air holes. This does not prevent them to work fine. By way, the more serious the level of the manufacturer, the better their ventilation system. For example look at the dreambox, Skyline and other satellite receivers. Given the fact that the 912 chip heat dissipation will be much higher, the cooling system will be a very important element for very stable operation.

For the fan does NOT NEED any additional temperature sensor. Enough available CPU. Just add a simple script that will check after 2-3 seconds the CPU temperature and send to the GPIO port signal to turn on or turn off the fan. If the temperature rises above 60 degrees, the fan is switched on if below 55 the fan is switched off. I made this simple script to NAS and everything works fine. At low load the fan is not working. When the load increases, the fan turns on. Not additional costs it no requires. It is enough to add such a script in the firmware.

Yes, that is what I meant when I said "A fan regulated by the system accord to the internal temperature sensor can be great."

[balbes150]

There is a problem with this kind of design. Dust and liquids. We all know liquids are dangerous, but dust can really damage electronics. A fan regulated by the system accord to the internal temperature sensor can be great. Let's test some options.

I think the dust and water no can to prevent good ventilation. You plan to use the i7 on the street ? On TVs, monitors, satellite tuners - lots of air holes. This does not prevent them to work fine. By way, the more serious the level of the manufacturer, the better their ventilation system. For example look at the dreambox, Skyline and other satellite receivers. Given the fact that the 912 chip heat dissipation will be much higher, the cooling system will be a very important element for very stable operation.

For the fan does NOT NEED any additional temperature sensor. Enough available CPU. Just add a simple script that will check after 2-3 seconds the CPU temperature and send to the GPIO port signal to turn on or turn off the fan. If the temperature rises above 60 degrees, the fan is switched on if below 55 the fan is switched off. I made this simple script to NAS and everything works fine. At low load the fan is not working. When the load increases, the fan turns on. Not additional costs it no requires. It is enough to add such a script in the firmware.

[Javimetal]

AMLOGIC S905X SDK has not been released yet, step by step. Now it is time to develop the board.

[kevin1341]

I Hope trebor with forum input we will have a great unit

[trebor]

Yep looking good, and so it begins again
Cheers

[kevin1341]

Good to see.
Looking forward to new unit.

[Javimetal]

This is one of the first developer samples of S905X in the world. There are few units. Inphic got some of them this week.

[kevin1341]

Hi Inphic,Here are my posts about fan.
Posts 106-108 http://freaktab.com/forum/tv-player-...-i7-s905/page8
Cheers
Kevin

[Inphic]

Quote (A fan regulated by the system accord to the internal temperature sensor can be great. Let's test some options.)
This is what I am going to do with my i7. I have a little 20mm fan glued to the top of the heat sink and the unit works great.
Two days ago I disconnect the fan and I had problems with Kodi playing HD movies so it is connected again and runs 24/7.
Cheers
Kevin

Have you measured temperature with and without your fan?

[kevin1341]

Quote (A fan regulated by the system accord to the internal temperature sensor can be great. Let's test some options.)
This is what I am going to do with my i7. I have a little 20mm fan glued to the top of the heat sink and the unit works great.
Two days ago I disconnect the fan and I had problems with Kodi playing HD movies so it is connected again and runs 24/7.
Cheers
Kevin

[Inphic]

There is a problem with this kind of design. Dust and liquids. We all know liquids are dangerous, but dust can really damage electronics. A fan regulated by the system accord to the internal temperature sensor can be great. Let's test some options.

[trebor]

Good Points, Ventilation and some cooling is always Important.

Fan is good
Good heatsink long fins and thermal paste with good ventilation.
Air circulation, Heat rises even small vents around Green fill in ring would help, a place for the heat to get out.



Holes in top would look like oversized saltshaker

Cheers

[balbes150]

You can suggest if you wish. Just remember we are going to use SPOT i7 casing and this S905X should not be too expensive (S912 is coming soon)

To improve the capability of i7, it is advisable to add on the PCB connector for the cooling fan. Add a GPIO port to control the power to this fan connector. Add to the upper hull vents. It is useful for the 912 chip. You can conduct a survey of users on this site. Which of the three versions of i7 PRO they want to buy. 1. The current case with no ventilation holes, no fan, no extra connector on the PCB for the fan. 2. With the added ventilation holes in the top cap. No connector and no fan. 3. With ventilation holes in the top cap and cooling fan. p.s. Metal platinum can be removed from the body by increasing the size of the radiator.