My new build.... trials and tribulations....

[EarthDog]

I don't even know where to begin, lol....

I suppose I'll list the hardware.

9900X3D
Asus ROG Strix X870E-E Gaming Wifi
GSkill 2x32GB DDR5-6400 CL32
MSI 2TB Spatium M580 PCIe 5.0 M.2
Samsung 2TB 980 Pro PCie 5.0 M.2
Gigabyte RTX 5090 Aorus Master (and MSI RTX 4090 Suprim Liquid X)
MSI 3x120mm AIO
Super Flower Leadex VI 1KW Platinum PSU (3.1/5.1)
MSI 32" 4K 240Hz OLED
Acer 28" 1440 60Hz

First... the case/build.

The Lian SUP01 is an interesting case. The GPU mounting is particularly unique with it being mounted in the front, IO side down. You route the display cable (in my case 2x DP) in the case and into the GPUs IO... I suggest you routing the cables and connecting them BEFORE you mount the GPU. Outside of that, even with the 3x120mm AIO and 3x120mm (inlcuded) fans, there's not a ton of airflow. That said, the hottest temps the CPU reached at stock during gaming was 75C, and banged off the limiter eventually in any stress testing.

So, the problems.......

1. It won't run 1:1 6400. VSOC is already up to 1.4V (automatic).
1a. It won't run 1:1 6200...does run 6000 CL30 1:1
1b. Thinking of returning this for 48GB 6400 just to get 1:1... or maybe 32GB since I really don't need more. Still have some tweaking to do, but just no time.

2. With the 5090 installed, I get weird black screens and freezes. I can't seem to play games. I'll see the game splash screen, then, the system freezes. It will blackscreen at the desktop too
2a. Put the 4090 in (using the same riser cable, note), and it works just fine.
2a. Put the 5090 in my old PC (also a 4.0 x16 riser cable), it works just fine.

I'm a bit behind on reviews so I need to get on that before more testing.

I'm going to (thanks, Woomack!)........

A. Try the Expo II profile from Asus BIOS
B. Try the Hynix 6400 setting from Asus BIOS
C. Force PCIe 4.0 in the BIOS to see if I can get the 5090 to work in this case/system.

 

[unsafesteagle]

symptoms seem similar to my first pcie riser cable .... i just replaced it with an after market one and that seemed to do the trick.

 

[EarthDog]

That same riser cable works fine with a 4090, but it's a 4.0 card. I haven't tried any other 5.0 cards to see if the problem stays (I expect it to)... but will add that to the list.

Tempeted to get one, but finding a 5.0 cable long enough for this case (510mm) is difficult (and likely expensive).



The case just isn't it for me, I don't think. It's cool, just not for what I have going on.

 

[Janus67]

The answer is C, setting BIOS to PCIE4 in order to use the riser cable or use a 5.0 riser cable [really dumb, I know]. I have a vertical mount for my 5090 and had to set it the same way when I upgraded from the 3080.

 

[Woomack]

I already mentioned that I had the same problems with RTX5070/RTX5070Ti and PCIe 4.0 risers. Forcing PCIe 4.0 in BIOS helped.

My last "I will switch components quickly, 2h tops" took me a week and additional $200 ... The older I get, the more I agree with "if it works, then don't touch" (at least for my daily PC)

 

[EarthDog]

After you telling me that (set to 4.0), it all came back to me...

.....you (all) saying it...seeing it mentioned before in articles, etc.


Does anyone remember the SNL skit "Mr Short Term Memory Loss" (Tom Hanks)? That's my brain these days.

 

[Woomack]

I was testing the 5070 Ti for the review and wondered why it didn't work for over an hour. A few days before, I was giving advice to others about the same issue. Like some say, my memory is good but short. Just saying you are not the only one ...

 

[freeagent]

That case is weird. Also not used to seeing a GPU with an AIO, so that is weird too

I would would for sure try pcie 4.0, that should help big time.

I don't have 5 series so I could be just talking smack.

1.4 VSOC seems a tad.. high, not like snoop dog high either. I have mine at 1.275 for 6400 1:1, with 2133FCLK.

Is that ram on the QVL? The board seems unhappy with your memory choice..

Edit:

Biggest help for higher mem speed was VDDG IOD to 1.060 and that fixed me right up. Couldnt go past 6200 stable without.

This thing is just like my 5900X, just faster.. and with some stuff I don't understand yet.

 

[deathstar13]

I know you may scoff at this suggestion but for the price 48/64GB is going for a kit i run costs the same and has no issues hitting 6400 CL32 1:1

Amazon.com

It went up in price so maybe not the best option, But my 32GB kit is from them and it ran perfect just wouldnt OC

Amazon.com

I really like TCreate dimms from TeamGroup.

Does your mobo have two gen5 NVMe slots? I know this mostly isnt on your dime so i wont comment on a few things.
BTW my 32GB set was 1.35v and my 96gb kit is 1.4v so i dont find it odd for yours at that.

My 9900X max's out at 5825Ghz so im really wanting to see how your 9950X3D does. BTW you didnt list this in your system specs.
Will you be testing any CuDimms? hit 10K 2/1 it should kill 1:1 specced ram.

 

[EarthDog]

I know you may scoff at this suggestion

Truth.

Thanks, but... no way I spend $100 more for capacity I won't use. I'm currently running 6000 1:1 with 64GB, so the 32GB kit, while cheap, feels pointless for my goals (6400, 1:1), too. If I go 32GB again, I'm getting 6400 kit.

Does your mobo have two gen5 NVMe slots?

Three.

My 9900X max's out at 5825Ghz so im really wanting to see how your 9950X3D does. BTW you didnt list this in your system specs.

The CPU I have is there.... 9900X3D.

Will you be testing any CuDimms? hit 10K 2/1 it should kill 1:1 specced ram.

CUDIMMs run in bypass mode on AMD bud... useless.

 

[deathstar13]

Ok now i remember the chip in question, I hope it does well undervolting and oc'd.
Id love to have 3 gen5 NVMe slots, But id still put Gen4 drives in them due too costs.
Ive not read up much on the CUDIMMs so i just learned something new.
Back when i bought my 96GB it was like $270 or so, But now its not worth the extra expense.
But both kits ran Expo exactly like they should so i still suggest the TCreate Dimms in what ever amount you wish.

 

[freeagent]

Yours wasn't running 1:1 on the uclk/mclk, uclk was a lot slower..

 

[EarthDog]

Yours wasn't running 1:1 on the uclk/mclk, uclk was a lot slower..

He did get there eventually... but let's keep this thread on subject.

 

[Woomack]

CUDIMMs run in bypass mode on AMD bud... useless.

CUDIMMs don't even post on most AMD and older Intel mobos. They don't work at all on ASRock, Gigabyte, and also some ASUS and MSI models. I only know the bypass mode works on some top models like ASUS Z790 Apex.

I'm unsure if there is any magic in 6200-6400 1:1 besides the mobo model and IMC quality. For mobo reviews, I literally install my 96GB 6400 kit on any mobo, enable XMP, and it runs or not. I don't adjust any voltages - mobos do that automatically (or can't post). The same on ASRock X870/X870E/B850, Gigabyte X870E/B850/B650E and ASUS B650E. I had no 800 series ASUS. Most B850 models couldn't run at 6400 but could make 6200 1:1. I don't expect ASUS X870E to have problems with that, so it's either the BIOS version or IMC. I also haven't seen many CPUs that couldn't make it, so have to be really unlucky to get one.

 

[EarthDog]

Not sure what to say about my system. I didn't have too much time to play with it. I'll get there (1:1) eventually. Maybe... lol. Again, it runs, it's just not 1:1 and the uclk is sitting at 1600mhz.

It irks me that I have 6400 sticks i have to run slower, but outside of that, when it's working, it runs like a champ with 4090.

 

[Woomack]

you could use Intel

 

[EarthDog]

Part of me says I should've stayed with it....

I'll get it going as I want... the real problem is time to do it... I just don't have it.

 

[freeagent]

I bought AM5 for Zen 6, but I too miss ocing Intel.

 

[EarthDog]

That's the ultimate goal here...

Hopefully then they'll have 8-12 core CCDs.......

 

[EarthDog]

Small update: Last night I tried to set the PCIe slot to force Gen 4 and the system wouldn't complete POST (with working 4.0 GPU) sitting there with a "15" on the debug/memory LED lit. I went back to optimized defaults to try again, and still the same. I tried a different kit for giggles and it behaved the same way.

I've come to realize that I don't think any of the cases I own (Lian Li SUP01, Hyte Y60) are going to work for the GPUs I have to use for the moment (one is watercooled and no place for the AIO rad in the SUP01, the other is PCIe 5.0 card having trouble with flickering as stated above).

That said, I think I'm going to buy Havn HS 420 VGPU chassis.......F it. It comes with a PCIe 5.0 cable already and plenty of room for anything.... even AIO-cooled or 4-slot wide GPUs.