1.3GHz
#8
(08-21-2017, 03:46 PM)xalius Wrote: I think RK went back a bit from the original whitepaper which had 1.5Ghz in the feature list, their original Android images based on 3.10.x still have OPPs for 1.4 and 1.5Ghz, but their newer datasheets say 1.4Ghz max atm, maybe they had issues after ramping up production... on the 4.4.x kernels the maximum OPP I got to run stable with a heatsink was 1.4Ghz so far...

Yeah I noticed with peters video it looked very stable @ 1.3 with just a passive heatsink.
https://www.youtube.com/watch?v=umLnsBlOtmo

I was thinking 1.4 is prob just junction temp stability but its a 7% increase and just wondered if we could have an image with a disclaimer 'This image must be run with a heatsink' or something to that effect.
I noticed the 1.4Ghz max reference also which is looking like a max but maybe that is an assumption of passive cooling and 1.5 is achievable with subsequent cooling.
It would only be a 15% increase and an OC to the new reference, but hey maybe.
Did you notice the original voltage levels for 1.4 & 1.5?
Been trying to find them but got lost in git-hub Smile

I ordered some bits to make an I2C pwm 2 channel fan controller that should come on at full blast then ramp down under control.
Just tinkering, but interested in pushing the stable max, purely out of interest as intrigued to what you could do with this little board.
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Messages In This Thread
1.3GHz - by stuartiannaylor - 08-21-2017, 12:21 PM
RE: 1.3GHz - by MarkHaysHarris777 - 08-21-2017, 12:58 PM
RE: 1.3GHz - by stuartiannaylor - 08-21-2017, 01:36 PM
RE: 1.3GHz - by MarkHaysHarris777 - 08-21-2017, 02:04 PM
RE: 1.3GHz - by stuartiannaylor - 08-21-2017, 02:45 PM
RE: 1.3GHz - by blue - 08-21-2017, 01:25 PM
RE: 1.3GHz - by xalius - 08-21-2017, 03:46 PM
RE: 1.3GHz - by stuartiannaylor - 08-21-2017, 04:36 PM
RE: 1.3GHz - by Drsdroid - 08-21-2017, 05:05 PM
RE: 1.3GHz - by stuartiannaylor - 08-21-2017, 05:13 PM
RE: 1.3GHz - by Drsdroid - 08-21-2017, 05:19 PM
RE: 1.3GHz - by stuartiannaylor - 08-21-2017, 05:54 PM
RE: 1.3GHz - by MarkHaysHarris777 - 08-21-2017, 06:40 PM
RE: 1.3GHz - by stuartiannaylor - 08-21-2017, 07:31 PM

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