The RK3399 Overclock/Undervolt/Voltages Thread
#26
@dsimic
i placed a piece of thermal pad between the shield and the backcover now to press it down and be sure to have more contact, i'll report back after compiling the kernel again. i can't believe that it needs more than that, BUT, worst case, i'm gonna put some thermal glue and a real heatsink on it an call it a day

NEWS: i found out how to overclock the CCI(CCI-500,CoreLink Cache Coherent Interconnect, so it works like the infinity fabric in AMD Ryzen CPUs).
in the rk3399.dtsi file "cru ACLK_CCI" is set to 600Mhz (Thanks to this GitHub Commit), i upped it to 800Mhz and i instantly gained 150-200MB/s in memcpy(3550MB/s) and memset(8200MB/s).
The entire SoC should benefit as the CCI manage all the data flow and cache/memory coherency. Still no idea if it is 100% stable and if i can push it more, i need time Big Grin .
This little RK3399 is becoming a beast Tongue
PinebookPro v2.1 4xA53@1704Mhz / 2xA72@2208Mhz / GPU@1125Mhz / CCI-500@1200Mhz
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Messages In This Thread
RE: RK3399 Voltage Limits - by dsimic - 03-27-2021, 11:18 PM
RE: RK3399 Voltage Limits - by generaleramon - 03-28-2021, 12:28 AM
RE: RK3399 Voltage Limits - by dsimic - 03-28-2021, 12:50 AM
RE: RK3399 Voltage Limits - by generaleramon - 03-28-2021, 01:29 AM
RE: RK3399 Voltage Limits - by dsimic - 03-28-2021, 02:23 AM
RE: RK3399 Voltage Limits - by generaleramon - 03-28-2021, 04:28 AM
RE: RK3399 Voltage Limits - by dsimic - 03-28-2021, 04:41 AM
RE: RK3399 Voltage Limits - by generaleramon - 03-28-2021, 04:57 AM
RE: RK3399 Voltage Limits - by dsimic - 03-28-2021, 05:07 AM
RE: RK3399 Voltage Limits - by generaleramon - 03-28-2021, 05:33 AM
RE: RK3399 Voltage Limits - by dsimic - 03-28-2021, 06:59 AM
RE: RK3399 Voltage Limits - by dsimic - 03-28-2021, 09:55 AM
RE: RK3399 Voltage Limits - by generaleramon - 03-28-2021, 10:18 AM
RE: RK3399 Voltage Limits - by dsimic - 03-28-2021, 10:51 AM
RE: RK3399 Voltage Limits - by generaleramon - 03-29-2021, 04:24 AM
RE: RK3399 OC-UV Voltage Limits - by dsimic - 04-01-2021, 06:26 AM
RE: RK3399 OC-UV Voltage Limits - by dsimic - 04-20-2021, 08:43 AM
RE: RK3399 OC-UV Voltage Limits - by dsimic - 05-23-2021, 12:26 PM
RE: RK3399 OC-UV Voltage Limits - by coetzeesg - 04-26-2021, 03:54 PM
RE: RK3399 OC-UV Voltage Limits - by dsimic - 05-24-2021, 07:09 AM
RE: RK3399 OC-UV Voltage Limits - by generaleramon - 05-25-2021, 10:30 AM
RE: RK3399 OC-UV Voltage Limits - by dsimic - 06-04-2021, 03:04 AM

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