Bottom line: 7950X3D is a champ.
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Ohh yeah. I see now. Well, I guess it was windows then.
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No question about it.
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Awesome dude. Glad you’re up and running now. Enjoy that beastie!!
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Awesome!! I’m so pleased for you that the effort to reinstall and all you’ve been through finally paid off positively.
Thanks to all the contributors here - what a great community of combined knowledge we have available to us at the end of a keyboard as fellow simmers!! 
Now to refrain from over-tweaking may be the next challenge for you haha 
I’m still unsure what to do. Will see if they had any luck doing memory test on Monday.
I think my options are:
- Ship the machine back to me with working 64gb Fury (not Expo rated and using all 4 slots so not ideal, but if it works and is stable I don’t really care and I think it’s still decent ram for this system?). I’ll just send back and refund the G.Skill.
- Send machine back with just 32gb Fury, I will return the G.Skill for another pack and try it myself later, then sell the Fury (or maybe they will still be able to refund all 64gb). This risks me needing to cmos reset and then maybe I won’t get the Fury working again to revert if needed, even if I save their bios settings as a profile?
- Ask them to try that G.Skill on an MSI motherboard, and if it works replace my whole board (will require fresh Windows install I guess. Bit of a pain as right now it’s as I left it with everything installed as I wanted it).
- Maybe something I haven’t thought of yet hehe
Why is that? When I did that package install it was from ASUS as they had a newer looking version. Is it possible to install the AMD sourced one over this to rectify this? Or uninstall then install again?
I didn’t do this step either. Will be first thing I do after verifying it boots normally when I get it back (next Tuesday) I guess!
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Excellent work @joeaudacious !!!
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AMD website will always have the most updated drivers available. The motherboard manufacturers always take sometime to publish those drivers themselves.
Disabling virtualization(SVM) definitely frees up a few more fps in sim. Expect 5-10 more fps just by disabling this.
By doing the following in bios I have been able to squeeze about 15-18 more fps in MSFS:
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Tighter RAM timings as shown in my previous link posted.
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Disable Virtualization (SVM)
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Disable multithreading(SMT)
Without these settings I’m about 75-80 fps in sim
With these settings I’m then about 88-95 fps in sim.
So a very good boost.
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Sounds good I will be sure to try those, thanks 
What about the Low Latency Mode in-game (off / on / on + boost are the options) and there is similar named setting in NVCP (with ultra as top option).
Any thoughts on that? What does it even do?
Maybe it was the AMD site I actually installed from then. Any harm to install again over the top?
May I ask you a personal favor 
I am in the process of getting a brand new system, but my requirements are kind of peculiar (will be running MSFS in a virtual machine on top a Linux hypervisor).
I have delayed the purchase for now as the current breed of bios releases is still going through teething issues around the handling of virtualization (VFIO passthrough/IOMMU grouping still a question mark on some motherboards).
I was initially planning to get the 7900X3D for that setup, but I am now questioning my choice of core count.
So here is the request I’m making:
Now that your system is working as expected, could you post an image showing RTSS and dev tool overlays?
Ideally in 2D, in a fairly demanding scenario, such as a glass cockpit aircraft (airliner, for example) sitting at JFK with the usual options cranked up and all your companion apps running in the background?
A peek at core utilization in that context would help me size my CPU appropriately.
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least I can do after all the help you gave, I’ll get to it in a few hours. any specific airliner? I’m more of a GA flyer but I do have the PMDG 737-700 and the Fenix and the BA146, one day I’ll grow into them.
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Any modern airliner would do, the PMDG 737-700 is perfect for the purpose of having a peek at core utilization. Many thanks!
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this morning my results are not as good as yesterday.
I have installed everything that uses an installer, like justflight products, milviz etc.
I still have about 80GB of stuff in content manager from the market that has not been installed yet.
I also enabled all of my US add ons using MSFS Add Ons linker - this is a lot of stuff but all of it worked fine on my old machine albeit at lower settings.
Started at inibuild KLAX in 2d
so then I unlinked everything from add ons linker and went back to KMIA, clear sky
after that I went into the bios and disabled SVM and SMT , not much difference
so now in mid 60s to low 70s in 2D 4K
Edit: after disabling SVM and SMT, I’ve also had it crash during startup 2x. works on retry.
Edit2: I’m going to re-enable SMT (multi threading since it has not helped anything to disable it and it may be causing some crashes), I’ll leave SVM disabled since I’m not planning to use any virtualization, but disabling it didn’t seem to add any frames for me.
A while back I had a similar issue, fwiw.
Anytime I started the sim with MSFS Add Ons linker , performance tanked. I had to uncheck everything and reenable them almost one by one to find the culprit.
It was organized in folders, so I enabled a folder, launched the sim until the performance went south.
Turns out it was an objects library I got from flightsim.to interfering with the sim operation.
but with all of that removed I’m still barely hanging on to 65 fps in 2d 4K.
I suppose this is an example of the reason why I am hesitant to make changes of this nature when things are going acceptably well. Even if a change doesn’t cause an obvious crash, I am still worried about it subtly “disturbing the harmony in my virtual universe” that it might cause other apparently unrelated issues at a later stage.
I am clearly just a wimp…
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Looking back at what you posted right after the windows refresh, in vanilla mode, you were reaching low 70"s.
Maybe some changes that affect the sim operation.
Either way 60+ in 4K is a dream come true for most people
no changes other than installing market place add ons as well as some installers for aircraft purchased from justflight.
still waiting now for the rest of my market place add ons to download then I can do some more testing.
throughout this whole process though it has often seemed that performance can change after every boot. and it still takes a long time to boot every time like it is always training the memory on every boot, but maybe sometimes training it better than other times and maybe that is causing variances in performance.
I am not sure why performance fluctuates.
As to memory training, I hope & expect it will get better with the next AGESA release from AMD (1.0.0.7):
I dug deeper on this subject, since I am planning to acquire a dual CCX chip for my virtualization setup.
When AMD released 7950X3D, they shipped CPUs to the most established reviewers, such as LTT, Gamers Nexus, Hardware Unboxed, Level1Techs, etc…
WIth the CPU came a ‘reviewer’s guide’ with guidelines to ensure that their system is setup appropriately. The information provided to the reviewers is not published on AMD’s own website for some reason.
Here is a link to the reviewer’s guide, with things to look for to ensure the system setup is optimal, as per AMD’s guidelines to the happy few:
I would recommend that you compare these guidelines to your current system setup.
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You need to enable “memory context restore” in bios in order to boot up faster.
This was one of the main reasons previous bios versions were not stable.
But the seem to have fixed it with bios 1004.
Enable it and this should improve boot time of about 15-18 seconds total.
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