5800x3d temps

[fgpack90]

Hello, i recently installed a 5800x3d with a brand new PA120SE. I was watching at temps in this couple of days i played and CPU goes from around 50 (at low % usage) to 65 when at around 40-45% usage. Is it normal?

[Rumpelcrutchskin]

Yeah it`s a great air cooler and there is nothing abnormal about these temps.

[emoticorpse]

Max usage is the key thing. Stress test your CPU and see how high it gets at 100%

[fgpack90]

Originally posted by Rumpelcrutchskin:

Yeah it`s a great air cooler and there is nothing abnormal about these temps.

ok i thought i hadn't put correctly thermal paste or didn't lock good enough cooler. Thanks a lot

[Rumpelcrutchskin]

5800X3D has fairly high idle temps and max temperature range before it starts to thermal throttle is 90C. You can expect around 75-80 C from heavy use or stress test.

[fgpack90]

thanks guys, that feels reassuring

[Karumati]

Originally posted by fgpack90:

Hello, i recently installed a 5800x3d with a brand new PA120SE. I was watching at temps in this couple of days i played and CPU goes from around 50 (at low % usage) to 65 when at around 40-45% usage. Is it normal?

Totally normal temperature for air cooling

[Overseer]

Undervolt it a bit and/or lower the PPT. Tjmax is 90°C.
Pay attention to the L3 Cache temp reading. That one is closer to the cooler than the cores and gives you a good idea of how the cooling is working. And then keep an eye on the delta between the L3 Cache and the CPU readings.
Hitting 90°C CPU temp with stress is not hard on air. Gaming in between 60 and 70°C is normal.

[ZAP]

Y-cruncher

[kc_sKnitt]

I have this prosessor water cooled. Mine is under 40 C° at low usage (idle) and ca 60 C° at about 30%. I haven't done a stress test. My temperatures was much higher right after install but went down after some usage which was a bit odd... I think your temps are normal air cooled.

[Illusion of Progress]

Originally posted by Rumpelcrutchskin:

5800X3D has fairly high idle temps and max temperature range before it starts to thermal throttle is 90C. You can expect around 75-80 C from heavy use or stress test.

As someone with a 5800X3D under a Dark Rock Pro 4 (so, it doesn't really get better under air cooling), this remark is just about what you can expect. At least with typical CPU settings and on air cooling.

So if you undervolt it (setting negative offsets), you can often improve thermals with little to no performance loss. I personally haven't done this but I've been toying with the idea of it given the 5800X3Ds specifically are said to be almost guaranteed take well to low offsets?

Water cooling would likely also improve these transient spikes and I can't speak for that, but I at least know they're not abnormal to be occurring for typical (air cooled) setups.

Modern CPUs, and this started especially with Zen 3 on AMD's side, will more happily run up to their thermal limits if there is room. The room is there; they use it. Modern CPUs are also a lot more dense so more heat is coming from smaller spots. So if it needs to spike in frequency for a moment, and it sees "oh, I'm at 50C, it have ~40C of headroom", it might just do that. I've seen it brush up right around (slightly plus or minus) 90C at times.

If it's staying at 90C+ and actually throttling, that is when you know cooling is poor. But if clock speeds are staying between at least 4.4 GHz and 4.5 GHz (for a default one, this is expected boost range), then it's fine. High temperatures plus being below rated boost with it fluctuating, is the key sign there's throttling and you have issues.

Also, idle temperatures are pretty meaningless. Your highest temperatures are all that matter.

Originally posted by Overseer:

Pay attention to the L3 Cache temp reading. That one is closer to the cooler than the cores and gives you a good idea of how the cooling is working. And then keep an eye on the delta between the L3 Cache and the CPU readings.

The latest release of Libre Hardware Monitor (0.9.2) doesn't seem to show such a thing and I never knew the cache on these CPUs had its own sensor.

Or maybe it does, and that's what the two readings I'm seeing are?

Core (Tctl/Tdie)
CCD1 (Tdie)

I always presumed the first was the "general" one and the latter was the CCD specific one (and CPUs with two CCDs would therefore have two of these readings). I believe I'm correct on the latter part due to the obvious naming but now I'm wondering if that first sensor is actually the cache? Come to think of it, I don't think my 3700X reflected two temperatures, but I also recall switching between HWMonitor, then Open Hardware Monitor, and finally Libre Hardware Monitor so I thought the additional temperature reading was from one of them.

Is the first one actually the cache or do I need another software to check this?

There's a gap between the two readings but it's not much. First one is usually a couple/few degrees warmer.

[Overseer]

It seems to be a specific reading the software has to support. CCD1 Tdie is it's own thing.
There is also one reading per core, an average and then the L3 reading.
Idle the difference between L3 and CPU seems to be 3-4°C. But under full stress that difference can hit 38°C.

[Illusion of Progress]

Hm, I don't see specific core temperatures either (I've seen this for Intel but I thought AMD just measured it per CCD).

38C!? That's a lot.

Any suggestions on what software shows this temperature? Presumes HwInfo 64 might be one of them but I'd rather not start grabbing a bunch based on guessing.

I'll stick with Libre Hardware Monitor but I'd like to check with something that does show it to get an idea of temperatures in my case. I never knew a sensor for the cache existed (though it makes sense at least for the X3Ds).

[Bad 💀 Motha]

It's normal for all Ryzen 5xxx series cpus to hit upwards of 70-85*C during demanding periods

[Overseer]

Originally posted by Illusion of Progress:

Any suggestions on what software shows this temperature? Presumes HwInfo 64 might be one of them but I'd rather not start grabbing a bunch based on guessing.

Yeah i use HWiNFO. Newer versions had plenty of new reads added and the Ryzen 5800X3D now has an "Enhanced" set of reads.

[Illusion of Progress]

Thanks, I'll check it out.