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***The Official 5900X \5950X owners thread***

Hi all, thought i'd treat myself to some upgrades on the AM4 platform this month for a bit of future proofing but urgh what a hassle :).

64GB 8pack ram, had to knock the speed back to get it to run with 64gb down to 3400hz.
5950x... was blue screening randomly until I enabled PBO... i've set some manual limits to see if it helped with the new instability but nothing although knocking PPT down did bring some more reasonable temperatures. I've increased these to the defaults for the 5950x currently.

Its fine under load it seems or when i'm actively using the system, but if i'm away for 4-6 hours or in particular if the screen is turned off... the system will CPU error on me, i've disabled C states but still no good. I've bought a new MB thats on the way in the form of a B550 Aorus Master in hopes that I can rule out any kind of MB power issues etc.

I'm tempted to go back to 32gb of RAM and see if the system is stable at that as i'm pretty sure it was more stable at 32gb with 3600hz than with the 64gb. I was running a 3600 previously with all cores at 43.5 100hz clock etc without any issues.
 
poxxxy said:
Hi all, thought i'd treat myself to some upgrades on the AM4 platform this month for a bit of future proofing but urgh what a hassle :).

64GB 8pack ram, had to knock the speed back to get it to run with 64gb down to 3400hz.
5950x... was blue screening randomly until I enabled PBO... i've set some manual limits to see if it helped with the new instability but nothing although knocking PPT down did bring some more reasonable temperatures. I've increased these to the defaults for the 5950x currently.

Its fine under load it seems or when i'm actively using the system, but if i'm away for 4-6 hours or in particular if the screen is turned off... the system will CPU error on me, i've disabled C states but still no good. I've bought a new MB thats on the way in the form of a B550 Aorus Master in hopes that I can rule out any kind of MB power issues etc.

I'm tempted to go back to 32gb of RAM and see if the system is stable at that as i'm pretty sure it was more stable at 32gb with 3600hz than with the 64gb. I was running a 3600 previously with all cores at 43.5 100hz clock etc without any issues.
Click to expand...
4x16GB is a lot harder on the memory controller than 2x16GB.
 
poxxxy said:
Hi all, thought i'd treat myself to some upgrades on the AM4 platform this month for a bit of future proofing but urgh what a hassle :).

64GB 8pack ram, had to knock the speed back to get it to run with 64gb down to 3400hz.
5950x... was blue screening randomly until I enabled PBO... i've set some manual limits to see if it helped with the new instability but nothing although knocking PPT down did bring some more reasonable temperatures. I've increased these to the defaults for the 5950x currently.

Its fine under load it seems or when i'm actively using the system, but if i'm away for 4-6 hours or in particular if the screen is turned off... the system will CPU error on me, i've disabled C states but still no good. I've bought a new MB thats on the way in the form of a B550 Aorus Master in hopes that I can rule out any kind of MB power issues etc.

I'm tempted to go back to 32gb of RAM and see if the system is stable at that as i'm pretty sure it was more stable at 32gb with 3600hz than with the 64gb. I was running a 3600 previously with all cores at 43.5 100hz clock etc without any issues.
Click to expand...

Higher capacity ram can put more strain on the CPU's Integrated Memory Controller, as said above me especially if its a 4 stick kit vs a 2 stick kit, but it can still strain the IMC more with just 64GB vs 32GB, so it normal that you might not be able to get the same speed with 64GB vs 32GB even if its only a 2 stick kit, to be fair 3400Mhz is not bad for an AM4 platform, i would be happy with that if you're also running 64GB.
 
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After reading my post I guess I wasn't too clear. I first upgraded RAM first on a Ryzen 3600 CPU, had it stable at 3400hz on there witth 4*16GB no crashes at all. I could only run 3600hz on 32gb (2x16gb) though but I'm not fussed about the memory speeds... its the idle crashes i'm not happy with since upgrading CPU to 5950x :D. I would get BSOD's doing simple tasks until I enabled PBO on this MB (underspecced MSi carbon max ac VRM wise but temps on mosfets etc are ok and watercooled loop handling cpu temps). The problem currerently is when I turn my screen off or leave it over night... by the time i'm back to it, its died there is nothing in event viewer etc just a CPU light on the MB and a full reset is required. I did have the 64gb running stable with the ryzen 3600 at these speeds so i'm unsure its a RAM problem but I will revert back to 32gb to be sure. Just wondering if I should consider going constant Vcore voltage and an all core multiplier and get rid of these horrid boost algorithms to see if that helps with the idle instability. Temps are all fine etc and load tests seem fine. I did see in event viewer this morning this "The previous system shutdown at 06:23:46 on ‎17/‎12/‎2025 was unexpected.The previous system shutdown at 06:23:46 on ‎17/‎12/‎2025 was unexpected." NO brainer :')
 
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Yes unfortunately, the new board has arrived so might be the next step. Going to borrow a friends old CPU, as typically I flogged the 3600, to get it up and running and check it out before swapping everything over. Left prime95 running all morning (forgot about it) and still stable when under load. C states are disabled too which seems to be a common fix.
 
Hmmm, I left the system with the monitor off... and maybe its because i've left hwinfo64 logging keeping something active or because I may have made did more changes to PBO limits etc, but the system remained on :'). Probably a coincidence... overnight will be the test, and if it stays on with hwinfo64 logging then it will be trying it without :').
 
My 5950x gives me BSOD if I don't set the memory controller voltage to at least 1.05v
I've had the chip for 3 years and I'm likely to get something that gives me better single clock boosts like the intel ultra series.
 
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humbug said:
Higher capacity ram can put more strain on the CPU's Integrated Memory Controller, as said above me especially if its a 4 stick kit vs a 2 stick kit, but it can still strain the IMC more with just 64GB vs 32GB, so it normal that you might not be able to get the same speed with 64GB vs 32GB even if its only a 2 stick kit, to be fair 3400Mhz is not bad for an AM4 platform, i would be happy with that if you're also running 64GB.
Click to expand...
if he can do 3400 with 4 sticks that very good indeed. im topping out at 2600 with 4 sticks. although i do have x470 platform so...
 
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