JN> Hi, JN> my raspi4 is booting and running from an USB-SSD Harddrive connected JN> with no additional power for the harddrrive. JN> With "stress" i simulate some stress for CPU / IO and RAM. At the moment JN> (first 6 hours), everything works as expected. JN> JN> The measure_volts shows me ~ 0,84V and CPU Temp ~ 84°C (at stresstest)m JN> without stress ist is at 58°C. JN> JN> Is this OK for 24/7 running? JN> JN> JN> Jan JN> JN> --- SoupGate-Win32 v1.05 JN> * Origin: Agency HUB, Dunedin - New Zealand | FidoUsenet Gateway
Throttling will kick in at 82C, and 84C is a little high - but if you said that was just at stress, its ok for short periods. 58C is ok for normal operations, but that being said you can easily get it down a bit if you try. Are you using any cooling now? Passive will (unless you're already running some..) drop you a few degrees, more if its a beefy passive heatsink. If you use a heatsink and a small fan you could get down to the mid 40s. I suggest an iceCooler - I run in the mid 30s on normal use...
Anyway, you are within the accepted range if thats all you wanted to know. :P Cheers.