New Computer Build Requests

[Waggy]

So, I have some questions regarding a modeling and rendering station I’ve been trying to plan if the parts ever become available.

So, my budget is $5000 plus if necessary. I want a

Ryzen 5950x

An RTX 3090 from MSI preferably.

A motherboard that can hold two 3090s if I want to get a second one in the future. Which AM4 board has enough bandwidth for two cards?

128 Gigs of RAM for high res models and Houdini sims. I’m already thinking about the G Skill ram as it has nice speed and low cl.

The issues I am seeing. I have been looking for a motherboard with Max bandwidth for multiple slots but the place I go to keeps telling me only Threadripper motherboards have maximum bandwidth for more than one GPU.

I also read online that some people are having issues with one large power supply distributing properly between two 3090s, and that it’s better to have two power supplies, but my store tells me two power supplies will cause stability issues when it comes to power spikes.

 

[Alex Glawion]

Take a look at the MSI Unify x570 or Asus WS Ace x570, both are good boards for running a dual GPU setup. It's true that only Threadripper (HEDT) motherboards can run more than one GPU at x16 pcie bandwidths. That's one of the bigger differences between a mainstream platform (AM4) and an HEDT platform (TRX40, tr4, threadripper)

The good thing, though, is that a 3090 will not run any slower on a pcie4 x8 pcie slot, as it does not saturate the bandwidth so you can drive two gpus on AM4 with the above boards.

A single PSU will be fine. Get at least 1000W PSU, and a good one, from corsair or seasonic.