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

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.

--- Mystic BBS v1.12 A46 2020/08/26 (Windows/32)