2015-02-05, 17:46
great overclock oWarchild! the best I can do is 1110 for arm. if your happy with Pi1 then no need to rush to upgrade .
(2014-08-06, 19:46)popcornmix Wrote:(2014-08-06, 19:37)fernandovg Wrote: Should I change gpu_freq too?
My view: No.
Most important set arm_freq as high as you can.
Next, set core freq as high as you can (it makes arm L2 cache and sdram accesses faster)
Next, set sdram_freq as high as you can.
The gpu_freq affects h264, v3d and isp. None of these are a bottleneck in using xbmc and I'd be surprised if increasing any made any noticable difference.
They do increase load on the power supply, and they don't overclock as high as core_freq.
If you don't know why are you changing them, then either leave then unset, or set to half core_freq.
(2015-02-07, 13:24)bertybassett Wrote: however if I change the SD card to a UHS Speed Class 1 I can push them to
1150
500
500
over_voltage=6
* Point to note these have no heatsink or fan, maybe I can push them a little more with these items.
(2015-02-07, 15:13)oWarchild Wrote:(2015-02-07, 13:24)bertybassett Wrote: however if I change the SD card to a UHS Speed Class 1 I can push them to
1150
500
500
over_voltage=6
* Point to note these have no heatsink or fan, maybe I can push them a little more with these items.
I think you will need to use over_voltage=8 to get past arm_freq=1150 (I did). Don't forget this requires force_turbo=1.
You'll probably also need over_voltage_sdram=4 to get past sdram_freq=500.
A heatsink and drilling some holes on the top of your case should help you getting better stable overclocks. A fan should also help but then it may ruin the cinema experience.
(2015-02-07, 15:40)bertybassett Wrote: Tried all those setting but no you. I think the Pi 2 just does not over clock as well. Not to matter as it plays good enough already