• We’re currently investigating an issue related to the forum theme and styling that is impacting page layout and visual formatting. The problem has been identified, and we are actively working on a resolution. There is no impact to user data or functionality, this is strictly a front-end display issue. We’ll post an update once the fix has been deployed. Thanks for your patience while we get this sorted.

Discussion Zen 5 Builders thread

Page 11 - Seeking answers? Join the AnandTech community: where nearly half-a-million members share solutions and discuss the latest tech.
AdamK47 said:
Was just curious about the SlimSAS on the newer board.
Click to expand...
An idea:

Get this: https://www.eproductsolutions.com/pcie-x8-gen4-with-redriver-to-slimsas-4i-sff-8654-dual-port-aic

Then get this: https://www.newegg.com/asrock-low-profile-slimsas-to-u-3-cable/p/N82E16816775083

Attach to the SlimSAS connector on the PCIe card and to the U3 port, attach some cheap U3 SSD. If it works, it will mean that the SlimSAS to U3 cable should work with the SlimSAS port on the mobo too.

But yes, quite a bit of money just to experiment and learn.
 
igor_kavinski said:
An idea:

Get this: https://www.eproductsolutions.com/pcie-x8-gen4-with-redriver-to-slimsas-4i-sff-8654-dual-port-aic

Then get this: https://www.newegg.com/asrock-low-profile-slimsas-to-u-3-cable/p/N82E16816775083

Attach to the SlimSAS connector on the PCIe card and to the U3 port, attach some cheap U3 SSD. If it works, it will mean that the SlimSAS to U3 cable should work with the SlimSAS port on the mobo too.

But yes, quite a bit of money just to experiment and learn.
Click to expand...
I don't want something that has to be used in the 2nd full length slot. That would cut the primary to 8x.
 
Has anyone with ASUS board fiddle with memory impedance values? ProcODT, DriveStrength, etc. I cannot seem to change those values, at least not in the way I am doing. Are there rules that I need to follow, e.g. certain values need to be paired, x value cannot excced y, etc.?

Trying to make odd memory combination work. I recently upgraded to 2x48GB from 4x16GB, and wonder if I can make 4 mismatched sticks work together. (2x48GB + 2x16GB)
 
lopri said:
Has anyone with ASUS board fiddle with memory impedance values? ProcODT, DriveStrength, etc. I cannot seem to change those values, at least not in the way I am doing. Are there rules that I need to follow, e.g. certain values need to be paired, x value cannot excced y, etc.?

Trying to make odd memory combination work. I recently upgraded to 2x48GB from 4x16GB, and wonder if I can make 4 mismatched sticks work together. (2x48GB + 2x16GB)
Click to expand...
I played with it a bit about a year ago. Not on mismatched DIMMs. Tried to get 6400 stable on two 32GB modules. It didn't make an appreciable difference and only resulted in me having to clear/reset BIOS settings.

Do you really need the extra 32GB of memory? Could just dial back speed and primary timings.
 
lopri said:
I recently upgraded to 2x48GB from 4x16GB, and wonder if I can make 4 mismatched sticks work together. (2x48GB + 2x16GB)
Click to expand...
What speed do the Auto settings give you when you populate all the slots? Note down the values the Auto mode arrives at and then start experimenting, decreasing timings or increasing voltages and speeds until you reach stability. It's a painful process so be ready to tear your hair out.

Depends a lot on the memory chips too. I had a Samsung kit that was awful and wouldn't budge beyond 4600 MT/s on my Z790 mobo. Got a Teamgroup 7600 MT/s kit with I think Hynix chips and it went all the way to 7000, the max supported by my mobo.
 
lopri said:
Trying to make odd memory combination work. I recently upgraded to 2x48GB from 4x16GB, and wonder if I can make 4 mismatched sticks work together. (2x48GB + 2x16GB)
Click to expand...
Things might be different with your board or with modern AGESA but last year when I upgraded from a 2x16GB SR kit to a 2x32GB DR kit, I made an attempt to run 2x48GB (16+32) per channel.

No matter what I tried the system would never POST at all under any circumstances. I figured the IMC just couldn't deal with mismatched rank dimms.
 
Same thing here. I was not able to boot with 4 sticks (2x48GB + 2x16GB). I had been running 4x16GB (2x16GB Samsung and 2x16GB Hynix DIMMs) for the past year without an issue, which made me think why not.

AdamK47 said:
Do you really need the extra 32GB of memory? Could just dial back speed and primary timings.
Click to expand...

I run VMs in a ram disk. You should try it. It's very responsive and also very secure. 😀

This is what Zentimings reads on my current 2x48GB setup:

96GBCL30seemingstable.PNG

ProcOdt 240 seems excessively high. Most others I've seen online for 4 sticks of DIMMs are 60 or below, so I was thinking that might be the culprit. But when I tried to change that value in the BIOS even just for 2 sticks, the changes I make do not seem to apply. (?)
 
Last edited:
lopri said:
I had been running 4x16GB (2x16GB Samsung and 2x16GB Hynix DIMMs) for the past year without an issue, which made me think why not.
Click to expand...
Try mismatched DIMMs in the same channel, i.e. 48GB paired with 16GB on the preferred slots channel. If that boots, populate the other channel.
 
igor_kavinski said:
How long did you wait? Maybe the training time increases a lot with mismatched DIMMs?

I would try myself but I hate that the heatsink is above the DIMM slots and I don't want to remove it unless I absolutely have to.
Click to expand...
Preaching to the choir here. I gave it plenty of time. I'd one of the guys that gives this advice out - Turn it on and walk out of the room, come back later.
 
BTW my 9700X has a rather high idle temperature at around 50C. It is about 10C hotter than 7700X it replaced.

I hated it at first, but for whatever reason it also runs like 10C cooler under load using similar workload (say, ~75C instead of ~85C) so I do not mind it now. I rarely see it go over 80C under heavy load (1T/MT) This has to be a TSMC process thing?

What is annoying though is that its max boost is 5725 MHz compared to 7700X's 5750 MHz. AMD really knows how to curb end user enthusiasm.

Edit: Actually it is not exactly an idle state. My PC idle state is more like 5~10% usage
 
Last edited:
B-Riz said:
The below settings gave me a 4 hour headache; OS installers will not load if all 3 are disabled.

The screen does not change to the below until going into the page, and only setting MCE to disabled (all settings are on Auto by default), then saving and restarting 😒

Basically, if I touch Gear Down Mode, I cannot install Windows or load a Linux Live ISO.

I took out the dedicated video card and started using the integrated GPU because it would do a weird video card type crash and then say no signal and restart the system, but then it happened on the iGPU also... Ugh

View attachment 105815
Click to expand...
Gear Down Mode is it's own thing. But memory power down and memory context restore you should enable /disable toghether.
 
lopri said:
BTW my 9700X has a rather high idle temperature at around 50C. It is about 10C hotter than 7700X it replaced.

I hated it at first, but for whatever reason it also runs like 10C cooler under load using similar workload (say, ~75C instead of ~85C) so I do not mind it now. I rarely see it go over 80C under heavy load (1T/MT) This has to be a TSMC process thing?

What is annoying though is that its max boost is 5725 MHz compared to 7700X's 5750 MHz. AMD really knows how to curb end user enthusiasm.

Edit: Actually it is not exactly an idle state. My PC idle state is more like 5~10% usage
Click to expand...
That seems high. Mine is around 2% idle usage. What process is using the most?
 
5~10% idle is normal for me because of VMs running in the background, including Windows Subsystem for Android.
 
igor_kavinski said:
How long did you wait? Maybe the training time increases a lot with mismatched DIMMs?

I would try myself but I hate that the heatsink is above the DIMM slots and I don't want to remove it unless I absolutely have to.
Click to expand...
I just got it to post reliably (at stock/auto JEDEC 3600, the 2x2R default) with a trident z5 neo 6000C30 2x32gb kit and a 6000C30 2x16GB kit. Expo won't work in this config at all.

7950X3D on an X670E Aorus Xtreme on the latest agesa 1.2.0.2. I guess improvements have been made, it would not post on older agesa when I tried (early 2023).

I'm temporarily using the 7950X3D in this setup until the 9950X3D releases. I'm also waiting for better high capacity memory options. No 6000-6400 Expo 2x48GB kits, and no 64GB dimms at all yet sadly.
 
Since we have few overclockers here, I was wondering, what speeds are realistic for following capacities 2x24GB, 2x32GB,2x48GB? I am more interested in max stable frequency, with more relaxed timings as gaming workloads are a secondary concern.
 
MS_AT said:
Since we have few overclockers here, I was wondering, what speeds are realistic for following capacities 2x24GB, 2x32GB,2x48GB? I am more interested in max stable frequency, with more relaxed timings as gaming workloads are a secondary concern.
Click to expand...
Realistically if you want to run 1:1 6400 will be the limit for any of those due to UCLK limits.

You could run the 2x24GB at a much higher speed in 2:1 mode but you probably won't see any meaningful benefit over 6400 1:1

G.Skill announced 2x48GB 6400C30 kits a few months ago that I've been waiting to see, but they haven't materialized yet.
 
Hail The Brain Slug said:
Realistically if you want to run 1:1 6400 will be the limit for any of those due to UCLK limits.

You could run the 2x24GB at a much higher speed in 2:1 mode but you probably won't see any meaningful benefit over 6400 1:1

G.Skill announced 2x48GB 6400C30 kits a few months ago that I've been waiting to see, but they haven't materialized yet.
Click to expand...
I would actually want to achieve the highest read bandwidth, so I guess with 2 CCD SKUs, the 2:1 mode won't be a problem. But it seems anything denser than 2x24 is out of the question to for 7000+ speeds?
 
MS_AT said:
I would actually want to achieve the highest read bandwidth, so I guess with 2 CCD SKUs, the 2:1 mode won't be a problem. But it seems anything denser than 2x24 is out of the question to for 7000+ speeds?
Click to expand...
I wouldn't expect great success running dual rank (32 or 48GB) dimms over 7200, and I would expect performance to be worse than 6400 1:1.

Someone else with a bit more experience pushing 2:1 mode might chime in if they have better information.
I stick with 1:1 and at 6400 you get somewhere around 80-85GiB/s read bandwidth depending on timings.
 
You must log in or register to reply here.

TRENDING THREADS

Back
Top