http://www.raspberrypi.org/forums/viewt ... 1&start=25
So I post again my previous post in new thread for rpi2 quad core overclocking
I have found SD read problems after reboot(does not boot as filesystem read errors) above 1100 with 600 sdram, 500 core, over volt 4.
Not been scientific about testing, but 1100/500/500/4 seems okay, but I have noticed 'pauses' in keyboard processing of upto 3 seconds when running X with 4 term windows and doing 2 simultaneous git clones (kernel and linuxcnc source repos) and an open web browser with 4 tabs open.
I have been noticing some pauses with keyboard, yet at same time mouse is still working without pause, I think nothing to do with overclocking this maybe a kernel problem?