According to manual, AMD Ryzen 9 9950x3d supports up to 5600 MHS speed ddr5 RAM. Would it be useless buying anything over a 6000 MHS speed RAM since it won't be able to support it?
Posted by kpay10@reddit | buildapc | View on Reddit | 44 comments
I can't seem to find this answer on Google but when it comes to RAM speed, I know you can overclock it but is 5600 the maximum a DDR5 RAM can go up to when overclocked? And if you try to go anything past that, are you going to get a blue screen of death?
PeanutBuddha666@reddit
Any chance someone can give me some tips on this? I have 32GB of DDR5 RAM, and the same CPU mentioned in the post, the stock frequency on the ram is 4800. When I switch to XMP profile (6400) and run a stability test on OCCT I get a bunch of errors about 45-55 minutes in. Do I just have bad luck with my CPU or is stability for frequencies that high rare on this processor?
Haunting-Ad6156@reddit
Im running dominator titanium 6600 with like 96 76 76 96 timing(not exact just off my head) it supports 6800 with worse timing so i just leave it on low timing 6600. Works great
alex_theman@reddit
5600 is just the maximum speed the vendor guarantees, you can push well above that with any motherboard that supports memory overclocking, as long as your ram supports those speeds. Most motherboard product pages list the RAM OC speeds the motherboard supports.
Gloomy-Injury-9139@reddit
Will it harm cpu if I run ram on 6000mhz? (cpu supports 5600 max)
PairGroundbreaking84@reddit
Nope. Your PC will crash if it has issues with the new configuration, and will turn on as normal again after you reset your ram settings/lower the clock rate, or reset your bios!
Antique_Savings6116@reddit
No
asdfoiua@reddit
No
dweller_12@reddit
9000 series will hit 6000MHz reliably, generally 6200/6400 is also stable. 6000 CL30 is the cheapest and most readily available, so get that.
gnaarw@reddit
That comment did not age well *cries in wanting to build a new PC this month* :D
Papa_Trades@reddit
unless you are me and get unlucky sad 5600 mhz and i tried another set of ram same thing sadly
Only-Theory-5077@reddit
Best IMC 😂😂😂😂😂😂😂😂
Current_Finding_4066@reddit
6000 CL 28 can be had for almost the same price. Not a bad option either. Of course only a small premium makes sense.
According_Basket_501@reddit
I have the same question.
This is my first experience with the R9 9950x3d, and I ended up buying the Corsair 2x16GB RGB RAM with 7000MHz CL34, which hasn't arrived yet. The motherboard is an MSI PRO X870E-P WiFi, which states that it supports RAM overclocking up to 8200MHz.
Do you think I'll have performance problems? Is it better to switch to Kingston Fury Beast Expo RGB RAM, 32GB (2x16GB), 6000MT/s?
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Reasonable_Depth_526@reddit
Is it better to go with 2x64 (5600?) or 4x32 (3600)
I need at least 128GB
Big-Progress9561@reddit
2 dimms vs 4 is always less stressful on the IMC.
Darth1311@reddit
I would like to jump into this question, what is the max speed for 4 slots? From what I understand you cannot have more than 192 GB of ram. So 4x64 is too much?
TorturedBean@reddit
The real question is, with all that cache, will you even notice the difference if you don’t measure it?
kpay10@reddit (OP)
Good question, I currently have my ddr5 4 sticks of RAM set to 3600. I don't know what big of a difference I'll make of i switch to 5600 or 6000 with 2 sticks of RAM
TorturedBean@reddit
Well 3600 to 5600 is certainly a larger jump than 5600 to 6000. I wouldn’t be surprised at the former have a noticeable effect rather than the latter. 🍻
Just_Maintenance@reddit
You can overclock to hit higher speeds.
kpay10@reddit (OP)
I'm worried if I go past 5600, I'll get a blue screen of death
ime1em@reddit
Just buy yori ramen based on the QVL list
Just_Maintenance@reddit
You can just run 6000MT/s RAM at 5600MT/s. Out of the box, before you touch anything, it will run at 5600.
So buy 6000 RAM, enable EXPO and try 6000 out. In the unlikely case it has any issues, simply disable EXPO and it will run at 5600.
kpay10@reddit (OP)
I thought the default speed for any DDR5 RAM is 4800
Just_Maintenance@reddit
DDR5 officially supports speeds from 4000 to 8800MT/s
YetanotherGrimpak@reddit
We're hitting 9600+ at the moment tho.
Just_Maintenance@reddit
That's not an official JEDEC speed. Of course memory can still be faster and advertise that speed via EXPO/XMP, but its out of JEDEC spec.
YetanotherGrimpak@reddit
Not official JEDEC, yet.
Honestly I thought JEDEC only went up to 5600. 8800 is actually quite high.
seklas1@reddit
The default speed is 4800Mhz. That’s what any RAM stick will run at when you just turn the PC on got the first time.
But you should enable EXPO. It is generally safe, improves performance, it works fine and won’t cause problems. I have 9950X3D with two 6000Mhz CL30 sticks and it works great.
If you wanna check out the graph with details: https://pc-builds.com/ram-latency
Realistically the sweet spot is 10ns. 6000Mhz is stable, anything below that is more stable and anything above is less stable. You can get those 10ns or less with lower MHz and higher CL number, but higher CL costs more, so generally 6000MHz CL30 is a good middle ground and you should do it.
Codys_friend@reddit
This is the way!
Weekly_Inspector_504@reddit
Why worry? If you get a blue screen then reduce it down to 5600.
Even_Clue4047@reddit
Extremely unlikely, but if you're nervous just run the aida64 memory test for like 8 hours. Most r9000 actually do 6200 1:1 and 6400 if you're lucky
kpay10@reddit (OP)
Is overclocking bad for you computer? I heard it can put way more demand on it
mrbombillo@reddit
No, XMP wont do any damage to your computee
spaceshipcommander@reddit
That's without overclock or xmp. My ram is happily running at 6400 on my 9950.
1Fyzix@reddit
It's the 100% stable zero issues speed. The higher you go, the less guarantee of stability. However, almost 99.99% of Healthy non defective AMD cpus can do up to 6000 cl30 without any issues. Some can do 7200cl34 (ahem, regret) by miracle, but it's a huge mess and not worth it at all. So always stick to 6000mhz cl30.
Current_Finding_4066@reddit
It depends on your particular CPU, as not all can clock equally high. I think 6400 is a pretty safe bet. I have seen 8000 making a positive difference too, but the higher cost is simply not worth the minuscule difference.
radkiller22@reddit
There's an entire chart for RAM compatibility https://www.amd.com/en/products/processors/ryzen-compatible-memory.html some of them are above 5600
tangerinelion@reddit
Think of these like speed limits. 35mph road means you can go 35mph without risking a ticket. Nothing actually stops you from going 40mph.
whomad1215@reddit
ram speeds are limited by the motherboard. hardware unboxed did tests with 8000mhz on am5 boards
aragorn18@reddit
5600 is the fastest that MD guarantees to work. But, through extensive real-world testing shows that basically all AM5 CPUs can hit 6000. AMD even sent 6000 RAM to reviewers for testing in order to show their CPUs in the best possible configuration.