There is no temp. problem when you have a good cooler installed.
I have a Noctua NH-U12A and my temp. never go’s higher then max. 64 dgr when flying for several hours. Also a liquid cooler will work fine.
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I use a BeQuiet Rock with two fans with the 5800X3D. No problem at all if the airflow in the case is ok and the fan speeds are set right and you are using enough fans.
With the automatic settings though, my fans continuously went from very silent to 100% RPM and back depending on the load. With my current settings the fans go to full 100% only when the temps get near 80, but run at higher RPM - but still below hearing level - much earlier.
Now the computer is very silent during normal work At full power there is a certain amount of fan noise of course but it’s not bad at all. Most laptops are significantly louder.
On the other hand I have a very lofty case that gives great airflow but has no sound dampening effect whatsoever. Also in addition to the 2 CPU fans and 3 GPU fans I am using 6 fans (three in, three out) for the case alone. So with more fans I don’t have to run them above 80% where they get loud - and 6 fans are barely more audible at slow speeds than only one, while they are shoveling six times as much air around. But normally you should be fine with 3-4 case fans as well.
CPU Temps during heavy load normally stay weöö below 70, except in the summer. Then you can add another 5. The CPU will start throtteling down approaching 90. So I have a safety margin.
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I also see ~55°C max on my 5800x3D, with a Deep Cool Strom Assassin 3, liquid metal thermal compound, and -30 on all cores with PBO tuner. Without PBO tuner, max tems can reach around 65°C.
At -30 PBO, I reach about 82-85°C running Prime95, small FFTs torture test, and it keeps clocks at around 4250-4300, but with PBO disabled, temps reach 90°, and it throttles back to around 4100.
Your resolution is FAR too low for your system.
If you wish to game at 1080p, then a 3080 is totally unnecessary. I see you’ve disabled it but using DLSS with a 3080 is not where you should be, particularly at 1080p! You should be playing in 4K with that setup.
I recently switched my 5900x for a 5800x3D and I play 4K Ultra and was always CPU limited. It’s a noticeable improvement, and I am finally now GPU limited (2080 ti with DLSS Quality) a lot of the time. I am now able to play happily at 4K Ultra and often at 60fps using many addons. Using liquid cooling I see no more than ~65c on the temps which is very similar to the 5900x, although the 3D draws way less power at approx 50W.
As it stands this is the best CPU for MSFS, hands down.
Hi, has your mobo got a bios version installed that fully supports the 5800x3d? If not, it may be clock limited to about 3400 and wont boost to 4500. It’s caught a few people out.
Yes about 80’s here too in msfs. DCS only around 65. I only use VR so that probably taxes things a bit
I just upgraded to a 5800X3D from an i9 10850K. When I first booted I could get 3.4 GHz max so I had all sorts of fun updating the BIOS (@BIOS would BSOD halfway through the read process, but I ended up getting Qflash to work with the BIOS loaded on a USB stick). I’m now getting the full 4.5 GHz speed.
I reused my 240mm AIO, as it had an AM4 bracket, and temps under prime 95 quick peaked at 90C and the CPU throttled down to 4.1GHz. Followed instructions to use PBO2 Tuner to undervolt and got a -25 (-30 is the max you can get, regardless of setting it greater) right off the bat which cooled things down nicely and tests stable. I’m currently doing a PMDG 737-700 flight out of YBBN and CPU temps were sitting around 55C and peaking at 60C which is actually cooler than my 10850K used to run.
The performance increase in 2D is outstanding, netting me a boost from 33 FPS to 60 FPS at the same settings in one CPU bound scenario I made with the A310 on the runway at LEPA with FSLTL traffic, high graphics preset, broken clouds wx preset and 75% render scale of 4K (was trying to emulate 1440p UW pixel count). In VR unfortunately there is neglible performance increase, as I am normally GPU bound in VR anyway, however it seems much smoother at the same FPS.
Overally, I’m very happy with temps and 2D performance but just wish that more could have been done for VR that I mostly use. I’m upgrading to a 4080/4090 or 7900 XTX in the next month so then I expect VR to find its wings!
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How do you use PBO? Thought the 5800X3D can’t be over- or underclocked. My BIOS doesn’t even display PBO with the 5800X3D installed
The 5800X3D can’t be overclocked but can be undervolted. I followed the guide here, including setting up task scheduler to apply the undervolt settings on Windows startup. Works great!
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In addition to what @RestXPDR already said, and speaking as a layman: This PBO tuner does modify the voltage curve under load. By doing so, the thermal load on the CPU is decreased, and temperatures go down. With the temperatures down, the CPU automatically clocks higher.
In my case, with a fairly powerful aircooler, at all cores at -30, it’s about -10°C, and + ~100 MHz under mutli core load.
If you run e.g. a 360 water cooler, there might be no increase in clock speed at all.
Contrary, if you use a lower end air cooler, and the CPU does not hold 4450 Mhz in MSFS (which is very heavy one one core/thread only) then you might actually see even higher clocks and higher FPS in MSFS with PBO tuner, than without it.
So its not overclocking, but can still give you higher clocks, and in any case less power draw on the CPU, and a quieter PC
I did a couple of VR flights with my new 5800x3d today. As previously mentioned, I am getting about the same FPS as before the upgrade, but smoothness is significantly better.
When I used to be on approach after a 1hr+ cruise, I would get notable pauses and stutters, but for two flights in a row today one with PMDG 737-700 and the other with Concorde (4 hrs), it was a beautifully smooth experience.
Oh and I did find a way to get CPU temps up higher, even with undervolting, and that was flying at Mach 2 in Concorde over populated areas in north east USA (yes, yes, naughty I know 
). Temps rose into the early 70s then progressively decreased to below 60 as I descended and slowed for approach.
I updated asus bios 2803 to 2806 (enable pbo and co for 5800x3d) and i am happy bacause i playing around 50C, awesome cpu!!! 
Hi guys,
I finally have bought the CPU and it is on its way! Now I’m trying to get a cooler for it and have the Cooler Master MasterLiquid ML240 Illusion on my cart. I don’t think my case can fit a 360mm radiator, my concern is if this 240mm will be enough?
Hopefully it will, I was pleasantly surprised with temps, installed at the start of week, temps 50-55 but benefitting from recent drop in ambient temperature. I use an arctic liquid 240 and it’s fine.
It definitely runs cooler than my 5800x which surprised me
Also option to undervolt which will reduce temps if needed
Pleased with the upgrade also, does seem to be smoother , I haven’t tested extensively but definitely less limited by main thread paired with Rtx 3090
I have a Arctic Liquid II 280mm in my PC and see temps in the 50s (low 60s at peak) without the pump and fans running at full speed, so I think a 240mm radiator will be fine too.
Hi folks,
i swapped my 5900x and put a 5800x3d in. But exactly zero.zero fps increase on my system (rtx 3090, 4k resolution). I expected +10fps due to your postings here.
Reinstalled AMD drivers, reset BIOS and tuned the settings back, no changes to fps.
I’m disappointed. Can you give me some hints?
Greets
My guess is at 4k you are GPU limited, so CPU improvements are not as important.
Did the in-game FPS counter tell you were main thread limited or GPU limited before you swapped your CPU?
I haven’t turned the in-game FPS counter on, only MSI afterburner. So you think it’s a 4k resolution restriction? Hmmm
I also went from 5900x to 5800x3d. I have a 3080 and run it at 180 render scale on a 2k screen. I know you are not GPU limited. I didn’t see much of an fps increase but what I did get were better frametimes on the cpu overall and especially in dense airports and other dense scenery. I switched back and forth between the 2 CPU’s several times just to test and I am keeping the 5800x3d because it just gives smother performance. Edit. Fewer spikes to the low 20ms range ie kord, klax, katl.
OK @rick12251 - thank you for your brief report. I also think I’ll keep the x3D. I also noticed more smoothnes at ultra preset, this wasn’t with the 5900x …
Greetz!
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