Posts by Xwarli

1) Message boards : Number crunching : Raspberry Pi 5 (Message 108855) Posted 18 Feb 2024 by Xwarli Post: I find somewhere around 2.8GHz work-units start failing for compute errors - although the temperature is stable. 2.9GHz tends to just be stable, and above that there’s never any guarantee it would boot, and if it does it’d quickly end up being throttled automatically to keep it below 85C. I’ve seen some articles online where people have pushed them up to 3.1GHz. Very much depends on the chip I suppose, and I doubt it’s a “useful” 3.1GHz for scientific work. I plan on buying more RPi5s over time, so it’ll be interesting to see if the chips get better and more stable at higher clocks. Will also be interesting to see how long they last crunching 24/7! They might also be brining out a Compute Module for the Pi5 at the end of this year… :)
2) Message boards : Number crunching : Raspberry Pi 5 (Message 108852) Posted 17 Feb 2024 by Xwarli Post: Recently swapped mine over from PrimeGrid to WCG and Rosetta, and it seems to be ticking along nicely at an overclock of 2.75GHz. Above that it is a little unstable I find (although I can push it to 2.95GHz). Average temp with the active cooler is 70-75C, and I think it averages around 20-25 GFLOPS (across four cores) for 13W of electricity per hour :)