**** Philtopia ****

I have been enjoying my Raspberry Pi 3 for a few days now the extra speed and built in wifi have proven to be excellent upgrades to the product.

Overclocking still seemed to be a topic not too many people had been willing to hit yet, even myself I was waiting for something in the raspi-config to show up. Last night in the retropie dev channel a fellow name Twisted0815 showed up and said he had a stable overclock at 1450 running and it was running well. I decided to give this a whirl and asked for his settings

#1450
sdram_freq=500
arm_freq=1450
over_voltage=6

After adding the settings to /boot/config.txt and rebooting sure enough the pi came up without issue.

I popped open a heavy application and left it running for 10 min, no issue.

I played some games on it for a half hour straight no issue.

Heat

I already had heatsinks on my Pi, I always heatsink a machine I intend to overclock and all my Pi’s going back to the Pi 1 B were overclocked in some manner but here are my reports.

Idle: 49C
Moderate application usage: 59C
Single and dual core load: 63C

Further testing

After doing some stress testing to the system at this setting I noticed with one core operations and dual core 1450 was stable but at 3 and 4 cores it would lock the system. I went to a thread on raspberrypi.org where they seemed to test every setting they could in 10mhz increments and tried them out with 1450. Still experienced a lockup eventually but made it further with the 4 core test than before.

I backed my settings off to 1350 like theirs and I was able to get a stable test result with all 4 cores and no crash. My temp in the peak of the test with all 4 cores loaded  floated around 79C to 80C with a heat sink.

I hope we get an official answer from the foundation at some point and perhaps a rasps-config option but I’ll stick with 1350 for now unless someone comes up with a stable 4 core solution that’s higher.

Updated finalized settings:

#gpu

core_freq=500
v3d_freq=500
h264_freq=333

#cpu
arm_freq=1350

#RAM

sdram_freq=570
sdram_schmoo=0x02000020
over_voltage_sdram_p=6
over_voltage_sdram_i=4
over_voltage_sdram_c=4

over_voltage=4

Tagged with: Raspberry Pi

Categorized as: What's up