Question Zen 4 builders thread

[Markfw]

I know its early, but as someone pointed out, I better get my ram now before the scalpers are all over it.

To go with a 7950x, what do you think of this ram:

https://www.newegg.com/g-skill-32gb-288-pin-ddr5-sdram/p/N82E16820374369?Item=N82E16820374369

(edited for my best recommendation, 12/5/2023)

 

[DrMrLordX]

That means if i use EXPO settings i essentially invalidate my Warranty, making threadripper just a glorified EPYC if you want to hold onto your warranty.

EXPO settings will change all manner of voltages, just like XMP/XMP 2.0 always has (depending on the mobo vendor). It has pretty much always been overclocking. Threadripper has the fuse and it will blow when you enable it. That's all it's really telling you.

 

[aigomorla]

EXPO settings will change all manner of voltages, just like XMP/XMP 2.0 always has (depending on the mobo vendor). It has pretty much always been overclocking. Threadripper has the fuse and it will blow when you enable it. That's all it's really telling you.

Yeah im getting a lot of mix answers on google when i investigate exactly what gets invalidated.
I dont think they will do a scummy thing like reject RMA unless your CPU has been battered to heck, but again, how will they prove it?

It would probably almost cost more to do a full analysis on why the CPU died, then just mailing the customer a new one.

But a blown fuse they can throw it on a scanner... oh fuse blown reject without any investigation and deny RMA.

Only time will tell, and good news is im pretty sure if someone was let down by AMD RMA, they would of already ranted a storm in regards of it, so it either means the CPU is durable, or no one buys threadripper and overclocks them anymore.

So again, once im done with hardware validation / testing, to make sure nothing needs to get sent back for a replacement, i'll toss it on water, accept the Y on the disclaimer, and go YOLO.

I need to do more research on how to overclock Threadripper, because it seems they do run very hot, and Jay2Cents along with Gamers Nexus has them pulling 600W once u unlock that PDO.

But again, i don't really like how EXPO invalidates your warranty.
That has to be illegal, because the RAM company is validating the RAM speed, the board is saying it can support it on the QVL, and when you try to get your ram working, it says doing so will wreck your warranty.
There should be a disclaimer on the QVL saying running EXPO speed ram will invalidate your warranty before you go off and purchase that expensive fast ram.

 

[igor_kavinski]

I need to do more research on how to overclock Threadripper, because it seems they do run very hot, and Jay2Cents along with Gamers Nexus has them pulling 600W once u unlock that PDO.

Which begs the question, do you really want to overclock it? With 4 channels, it's roughly DDR5-9600 in terms of bandwidth already and that seems plenty.

9950X DDR5-6000 per thread memory transfers: 187.5 MT/s

7960X DDR5-9600 per thread memory transfers: 200 MT/s

You still come out ahead even with stock settings. Why take the risk so early and why not just enjoy the system for a few years before blowing the fuse?

 

[gsrcrxsi]

You should try this: I have not installed it yet on my 9654 96 core, but from benchmarks on the web, it should do well.

https://www.amazon.com/dp/B09VH1BRYH?ref=ppx_yo2ov_dt_b_fed_asin_title

this heatsink wont fit his threadripper.

the one you linked is for SP5 only. only for EPYC Genoa/Bergamo/Turin.

threadripper is smaller like the SP3 size, even on the zen4 threadrippers. he needs the "4U-M" model.

 

[Markfw]

this heatsink wont fit his threadripper.

the one you linked is for SP5 only. only for EPYC Genoa/Bergamo/Turin.

threadripper is smaller like the SP3 size, even on the zen4 threadrippers. he needs the "4U-M" model.

then this one:

https://www.newegg.com/noctua-nh-u14s-tr4-sp3-premium-grade-140mm-cpu-cooler-for-amd-tr4-sp3/p/13C-0005-00140?Item=9SIAADY62M6046&_gl=1*1wac4dv*_gcl_au*MzYxMTc3MzE2LjE3Mzg2MzA2MjU.*_ga*OTM4MzYwMjMzLjE0Njg1MzMxMDI.*_ga_TR46GG8HLR*MTc0MTExNzM0Ni4zNzguMS4xNzQxMTE3NTYzLjAuMC42MTA1ODc5NjY.

 

[gsrcrxsi]

this one:

https://www.amazon.com/ARCTIC-Freezer-4U-M-AMD-400-2300/dp/B09VDM2P92

 

[aigomorla]

Which begs the question, do you really want to overclock it? With 4 channels, it's roughly DDR5-9600 in terms of bandwidth already and that seems plenty.

My motto has always been stock settings?

You wut mate?

 

[StefanR5R]

I need to do more research on how to overclock Threadripper, because it seems they do run very hot, and Jay2Cents along with Gamers Nexus has them pulling 600W once u unlock that PDO.

I don't have a Threadripper, but I am thinking it should be as easy as this:

• 600 W CPU power consumption won't be an issue once you mounted the waterblock and the large radiators which you mentioned. Still, you might find that the last couple of hundreds Watts don't give you anything of note in real usage, so you might want to set your own power limit anyway. A PPT limit, notably.
• The peak socket power consumption also matters to VRM temperatures of course, but you already have active cooling on them. Just take care to ventilate the computer case such that the VRM cooler fans pull mostly fresh air, not e.g. from GPU exhaust.
• Peak CPU hot-spot temperatures are a basically matter of peak core clock frequency, so you might want to set your preferred limit of that one too. Or set a temperature limit instead? Or both? I don't know which of these choices Zen 4 overclockers would prefer, and why, though either should work just as well.

 

[aigomorla]

I don't have a Threadripper, but I am thinking it should be as easy as this:

• 600 W CPU power consumption won't be an issue once you mounted the waterblock and the large radiators which you mentioned. Still, you might find that the last couple of hundreds Watts don't give you anything of note in real usage, so you might want to set your own power limit anyway. A PPT limit, notably.
• The peak socket power consumption also matters to VRM temperatures of course, but you already have active cooling on them. Just take care to ventilate the computer case such that the VRM cooler fans pull mostly fresh air, not e.g. from GPU exhaust.
• Peak CPU hot-spot temperatures are a basically matter of peak core clock frequency, so you might want to set your preferred limit of that one too. Or set a temperature limit instead? Or both? I don't know which of these choices Zen 4 overclockers would prefer, and why, though either should work just as well.

yes i know i have to reduce that SoC voltage as much as possible.
Im hearing a bulk of it can come from that guy as well, with a 1.2V SoC pulling 80W.
Im being reminded of the original Kentsfield days from intel. Those guys changed the heat load drastically and these guys are no joke compared to the normal Ryzens i have been building.

Welps, im almost done with the testing.
I just need to wait for another 1600W eVGA P+ psu to come in to pair the existing one i have.
So this system will have 2 x 1600W psu's. I dont even know if my wall or UPS for that matter can handle it.
Im gonna have to dedicate that single 30A outlet i have in my room for my PC stuff, just to my PC and move all the other accessories on another outlet.

 

[StefanR5R]

The user manual of your mainboard does not explain what its dual PSU feature is for. It says "Dual PSU configuration should only be used when overclocking" but that does obviously not mean that dual PSUs were actually be required when overclocking. A single top-end PSU should still be able to handle even an overclocked 96-core Threadripper... unless we are talking extreme overclocking with liquid nitrogen cooling.

Another use case for a dual PSU setup is for multi GPU computing. In that case, one doesn't strictly need mainboard support for dual PSUs, but this way it is more convenient and safer than controlling the second PSU via a 24pin splitter cable of questionable build quality, or via a splitter PCB.

 

[aigomorla]

The user manual of your mainboard does not explain what its dual PSU feature is for. It says "Dual PSU configuration should only be used when overclocking" but that does obviously not mean that dual PSUs were actually be required when overclocking. A single top-end PSU should still be able to handle even an overclocked 96-core Threadripper... unless we are talking extreme overclocking with liquid nitrogen cooling.

Another use case for a dual PSU setup is for multi GPU computing. In that case, one doesn't strictly need mainboard support for dual PSUs, but this way it is more convenient and safer than controlling the second PSU via a 24pin splitter cable of questionable build quality, or via a splitter PCB.

Your absolutely right, but im a "if it has it, must use it."

The extra PSU isnt much, probably wont end up using it, as i wont be pushing any record breaking benches on the cpu, but my H2O gear does pull probably an additional 100-200W on the system with the amount of fans and pumps. I am running typically 3 pumps, 12 case fans, 8 of which are high powered 1.5A fans, and im still waiting for a 5090 FE to come in stock.

It would be nice to have that extra headroom, which means i can dedicate a 1300W just to the board and cpu, and the 1600W to the rest of the system including the GPU cards.

 

[StefanR5R]

which means i can dedicate a 1300W just to the board and cpu, and the 1600W to the rest of the system including the GPU cards.

I on the other hand am dedicating 350...450 W per 64c/128t CPU computing node, and 350...400 W per 4c+RTX4090 node (or twice that per 4c+2xRTX4090 node). :-)
(That's "at-the-wall" power too, i.e. with peripherals, cooling, and the PSU's own losses.) I have several of such nodes crammed into a shelf in the living room. Which turns from living room to living hell if I use much of that shelf at once. ;-)

 

[igor_kavinski]

Dang, I feel so little listening to these professionals talk about their monster rigs

 

[aigomorla]

incase you guys didnt know, because i for sure didn't....
CoreTemp can get core temps off Threadripper, so i assume the same applies for Ryzens.

 

[cellarnoise]

How is this better than HWiNfo64 for the past several years? This is still Windows also?

 

[aigomorla]

How is this better than HWiNfo64 for the past several years? This is still Windows also?

I have always used coretemp on my intel systems. Its personal preference, unless i want to see the entire system temps which HWINFO showed.

But i don't remember HWINFO it working on AMD like that.
It would only report package temp, and not independent core temps.
Maybe i missed a version which they added it. Or maybe they started adding it after Zen4?

I should see if the new HWINFO shows core temp on my threadripper.

And yes its still windows, my TR is on windows 11.

 

[aigomorla]

This is why i love custom water so much... you can't get better load temps until you go sub ambient.



i think she's finally ready for some real overlocking.

 

[igor_kavinski]

i think she's finally ready for some real overlocking.

Uh oh. There goes the fuse

 

[aigomorla]

Man im still trying to figure these voltages out.
I change one setting, and something doesn't work.
You have no idea how many times i had to reset CMOS because of me goofying the voltages, so they don't get too crazy high and burn out like the 7000 Ryzen series.

But my system is finally in her shell, and she has her full on water cooling.



Yeah im running a dual GPU setup, because of my Rift S being only DP, and having 3 monitors setup which i also use DP on, and no video card has 4 DP's unless we go into workstation.

Also that OG eVGA 3080 will probably pump PhysX for me when i get my 5090. Right now its housing the 4090 on water.
And yes my Custom LCS is 2 x 480's 60mm thick all copper rads, pumping 660L/h. Its on a Dual Pump Setup for redundancy and head pressure since my threadripper waterblock is an injector style plate, with accelerators, hence you want to slam that plate with head pressure for better optimal cooling.

 

[utahraptor]

I have a X670E motherboard and AMD 7950X3D. If I upgrade to a 9950X3D could I go faster than 6000 or stay at 6000 if I went to 4 RAM modules instead of two? I guess I am wondering if its the chipset or the CPU that is more important for maintaining 4 RAM slots occupied at 6000 or greater speeds. Like would I also need a new mobo if I wanted that RAM arrangement?

 

[igor_kavinski]

There's no easy answer to all those questions. Maybe get the additional RAM kit first and see if all four DIMMs work together at default (4800 MT/s or lower) and then manually increase the speed gradually until you hit 6000. Doesn't work? Your next option would be to change either chipset or CPU.

 

[MS_AT]

I have a X670E motherboard and AMD 7950X3D. If I upgrade to a 9950X3D could I go faster than 6000 or stay at 6000 if I went to 4 RAM modules instead of two? I guess I am wondering if its the chipset or the CPU that is more important for maintaining 4 RAM slots occupied at 6000 or greater speeds. Like would I also need a new mobo if I wanted that RAM arrangement?

Check your mobo QVL for the CPU you want to buy. Then whatever they have achieved should be the baseline of what is possible. Assuming you have the mobo from the sig here is qvl https://rog.asus.com/motherboards/rog-crosshair/rog-crosshair-x670e-hero-model/helpdesk_qvl_memory/ Does not strictly matter if you find your exact sticks in there, it's mostly about if they even managed to get it running in a configuration that looks like the one you want to use.
In general 4 RAM slots at 6000 might be a challenge. Depends on the RAM sticks (dual sided or not), memory controller inside the CPU and quality of PCB traces on the mobo.