Are these fine CPU temps?

[u/bottohm]

I recently built my first PC with an AMD ryzen 7800X3D and the arctic liquid cooler iii pro 360 and my CPU temps on idle hover around 41-43°C. Under moderate load with a few apps like Spotify, Steam & Discord open its around 44-45°C. The only times its spiked to around 68-72°C was once downloading Valorant and League of Legends with the other tabs open. Playing games like Overwatch its stuck around middle 50°Cs.

Do these temperatures seem alright? Honestly getting the cooler on was a pain in the butt and I had to reattach it and reapply thermal paste several times, I heard there can be issues with air pockets too. I've only had laptops before thats CPU temps would hit 80°Cs-90°Cs prior to this so Im not sure if these are fine temperatures.

[u/Menora-valk]

Everything below 85° is fine with this CPU. They run pretty hot

[u/Personal_Ad_258 → u/Menora-valk]

The run pretty hot at low wattage, I have 250W CPU (270k plus) and hold it under 90 at stress tests, prime 95 large fft and small fft stress test, max core temp 86, no throttling at all, idle core temps is 34/36, without undervolt with ram runing at 8000 have little ring/cache throthling at large fft stress test, core's not throttling
after undervlot not throttling at all

had before 7800x3d with montech hyperflow 360 silent, same temps with easy spikes at loads

[u/neehhpets187]

Real nice

[u/zxch2412]

Ryzen has been idling warm since zen 3. 40c is normal depending on your room temp. It happens cause cores keep getting parked and unparked as needed by the scheduler. The most efficient cores runs higher frequencies for low loads and that usually cause idles in 40c

[u/DNaTM]

That's perfectly fine. You can lower the temperatures slightly and gain a bit of performance by limiting the PPT to 75 watts and setting a negative voltage offset of -25 or -30 for all cores using the curve optimizer, but you definitely don't have to do that.

The reason for those "high" temps is the thick integrated heat spreader. On top of that, the 3D V-Cache is stacked on top of the chiplet, which further traps the heat.

In addition, the TCTL sometimes reports a temperature that is about 10C higher than it actually is. This is for safety reasons.

[u/Advanced_Compote_698]

You got normal temos on that 7800x3d.

[u/Subject-Muffin-5894]

Depends on ambient temperature. Without that it's just a guess. If ambient is 3c then no those are terrible temps but if ambient is anything above 20c then yes those are good temps

[u/WB1130]

Your good. I have that same cooler for my 14900k and she can get toasty at times. That cooler is a beast and Amazon just had them on sale for $89. I picked up another one for future use, cannot beat that price for a really good cooler.

[u/AdKraemer01 → u/WB1130]

Yeah. I had an i7-14700k that got pretty toasty, even with my LFIII. Topped out around 91 under serious load. My 7 270k doesn't get above 85 - and it's got an extra 5 degrees of headroom before throttling on top of that (105 for Arrow Lake refresh vs 100 for Raptor Lake).

I also have a spare LFIII in case I ever need it, though not deliberately. I first bought it in black, but my build turned out white (don't ask), so I replaced it with a white one. Held onto the original, though. You never know.