Early experiementation with clock speeds over 1.512GhZ

[deebee123]

Found this while browsing , seems there have been some testing on the S912 chipset with higher clock speeds. It seems that the problem has more to do with high power draw and possibly internal hotspots along the voltage circuit. So far, According to the post it looks like around 1.6x GHZ is pretty much the limit when running 4 cores w/ the stock O-droid cooler.


anyhow the article is here and has some patches and code relating to the S912 in the O-droid C2

[mitchell4you]

Mhhhaaa... all that work...to get 80 MHz more ( adding cooler...testing, analysing results..posting, patching )

Your post made my day

[deebee123]

Mhhhaaa... all that work...to get 80 MHz more ( adding cooler...testing, analysing results..posting, patching )

Your post made my day

Glad to be of service..... what's gonna be even worse is if the only fix for the limited clock speeds is a redesigned die with a more robust power circuit.
Could be a real black eye for AML as it looks like the lifespan of the 900 series is gonna be quite limited even with the anticipated release of further optimized binaries. I doubt there intention was to release the chips with a new video core that were just on par with competitive offerings. I am no marketing analyst but I bet someone's head hit the chopping block when these chips came out well below what customers were told to expect.

What some suspect is happening is kinda like trying to run 8 window air conditioning units off of 1 or 2 very long small gauge extension cords.

I think It will be interesting to see what AML's next move will be. revisions to the 9 series to extend its life , I am hoping there is an early release of a next gen that's soo awesome with all the goodies of a high end micro PC shoved into a sub $100 TV box. <---must be dreaming.




it seems that running two of the big cores, and two of the little cores (which are actually identical cores) @ 2.0GhZ so that all of the L2 can be used, along with direct contact with an active cooler (with the help of thermal paste) may be faster in instances where individual core performance matters. But it seems that 8X 2G is nothing more than a pipe dream ATM.