7800X3D - what are your temperatures?

[DaBadger84]

So I recently, in preparation for an upgrade to a 9950X3D, decided to put a full open loop back in my system, with the CPU only to start - going from an EK Nucleus AIO (which is one of the best 360mm AIOs there is in terms of temps).

I knew that the 7800X3D runs hot because of a combination of bad core-to-IHS heat transfer, and the 3D VCache being on top of the CCD - instead of underneath like the 9000 series are/will be. Either I got a really good sample, or the EK AIO was amazing, because I've looked at other people's load temps under a full loop with quality blocks, and they're talking about 36-42C idles with loads ranging from mid 70s to the mid 80s... My temps with the AIO topped out around 79C most of the time, both with a heavy curve optimizer "OC", and recently with a 104MHz ECLK OC, which results in ~5000-5025MHz all core boost under R23 load, and 5225MHz low/single core boost.

I assembled the loop, put it on, ran some tests, and my temps are... Only slightly better? I'll post some screenshots when I get home. But it's only about 3-4C better. Admittedly my cpu block is a cheap one, and apparently radiator volume makes no difference, I hooked up my old 480mm x 60mm rad to the loop, with push pull fans, doesn't seem to make any difference on fan speed so I set them to max out where they're barely audible.

What temps are you seeing & what cooling are you using?

 

[Blaeza]

40C idle and 85C loaded. Thermalright peerless assassin 120mm with Silverstone Air Blazer 2200RPM fans.

 

[kiddagoat]

I have a full loop in my system.

3x EK Vadar Furious push on an EK 360-PE radiator
EK Vadar Furious Push-Pull on an EK 120-XE radiator
Corsair XC7 CPU Block
Corsair XG7 GPU Block

Mine normally tops out at about 78-79C.

The loop is primarily for my 4090, but the 7800X3D will boost as long as it has thermal head room. The hard limit is 85C. I don't have mine OC'd or anything. There really isn't a benefit to it.

 

[Vayra86]

36C-41C idle and 82C on max load; see systems specs for cooling.

I think all of these CPUs are very similar. You run them stock, or close to stock, and they're barely tweakable, and will just run admirably within their regular limits, because they're low TDP almost any cooling will suffice; and more cooling barely helps.

 

[DaBadger84]

Should be noted, with the ECLK OC & other settings (2067MHz FCLK at 1.2v SOC) it pulls 94-95W under R23 load. I forgot to include that.

Thanks for the replies this far, seeing more people with full loops & temps around the same as mine is nice lol

 

[FreedomEclipse]

Currently 37'c idle and about 53-55'c when gaming. I too have my SoC manually set at 1.2v. I have yet to run R23 or 24 on this machine but i'll get around to it eventually.



::EDIT::

Thermalright Phantom Spirit

 

[GerKNG]

from my notes, ~19°C Ambient, Benchtable (All Fans are on Auto (maxing out at 70°C)):
Cinebench R23 (30 Minutes) CCD1 Tdie:
Thermalright Peerless Assassin: 4600-4650MHz 78°C
Thermalright Burst Assassin: 4625-4675MHz 77°C (boosts better, maybe because the heatpipes are 90° rotated and theoretically covering the CCD better? it's a single tower cooler)
Thermalright Phantom Spirit: 4600-4650MHz ~75°C
Noctua NH D15 G2: 4650-4700MHz ~ 72°C
Arctic Liquid Freezer III 280: 4675-4725MHz ~70°C

Games are all random... some are in the 50s others are in the mid 60s.

 

[oxrufiioxo]

Every 7800X3D I've worked with (5) has ran around 75-80C under full load at least 60 minutes at 22c ambient regardless of cooling.

Idle has been in the 40 range.

 

[Kminek]

33-40C in idle, in full load (cinebench23) 83C with Deepcool AK620 in Phantex eclipse p600s case with CO -30.

 

[Hankieroseman]

47℃ watching football.

 

[TheLostSwede]

I'm on air, using a Noctua NH-D15 SE with offsets. I peak out at just over 5 GHz though.

Idle

Running the CPU-Z stress test

 

[DaBadger84]

I'm wondering if even running the D5 Pump I have in the loop at full speed when the CPU is under heavy load is worth the stress on the pump lol
Might have to test it out with Pump on full speed at 55C+ vs capping it out at something like 70% speed or what not...

I already adjusted my fans to where they're all basically silent regardless of load, since cooling capacity isn't the issue for the 7800X3D, even though mine is hitting 93-95W.

I shall post back with results of a 60+ minute R23 loop with Pump Speed maxed vs pump speed at something less audible... not that max speed is super audible, I'm fortunate enough to have a D5 that isn't loud A-F at full speed, it does have a slight whine to it though when it's going full bore.

 

[Athlonite]

Idle anywhere between 29~33 max temps are 75
Deepcool LT720s AIO with 3x Lian Li Uni Fan V2's ( I reused the DC fans as bottom intakes on my O11)

 

[DaBadger84]

Result #1, this is over 1hr of Cinebench R23, pump running at max speed, with the fans on silent mode:

The lower pump speed test will have to wait until tomorrow, gotta sleep before work lol

 

[DaBadger84]

Update, ambient was arguably slightly higher, but still in the 64-68F range, results from 70% pump speed testing are basically very much margin of error, so it seems pump speed, at least to a certain extent, also has no effect on temps:

And that's on a full 75 minute run.
Peak was 75.8C vs 76.1C on the 100% run... averages were within .2C of each other.

Good to know I guess?

 

[malons]

Idle anywhere between 30~40ºC max temps are 75~78ºC using full loop with 2 x 360 rads