Am5 motherboard is there a board that you can actually use 3 nvme in with out effecting gpu

Don't bother with gen 5 M2 drives as they are overpriced, run hot and you won't notice the extra speed outside of benching the drive anyway. I am still running a gen 3 drive alongside a gen 4 drive and I can't tell the difference between them in day to day tasks. Heat is especially a problem with these drives due to their location on the motherboard, usually under a hot gpu.
 
pastymuncher said:
Don't bother with gen 5 M2 drives as they are overpriced, run hot and you won't notice the extra speed outside of benching the drive anyway. I am still running a gen 3 drive alongside a gen 4 drive and I can't tell the difference between them in day to day tasks. Heat is especially a problem with these drives due to their location on the motherboard, usually under a hot gpu.
Click to expand...
Thanks pastymuncher might look at getting another wd sn850x then
 
Last edited:
Alex h said:
Yeh back to the drawing board I think do I really need usb 4 probably not
Click to expand...
i personally would not buy a mid-high end PC now [without] USB4!

there are interesting boards like the MSI 870e tomahawk that split nvme bandwidth with the USB4, where they each get 2 lanes of PCIe5.

this is something that the Samsung 970 Evo Plus is well placed to exploit.
 
PeegeeTips said:
i personally would not buy a mid-high end PC now [without] USB4!

there are interesting boards like the MSI 870e tomahawk that split nvme bandwidth with the USB4, where they each get 2 lanes of PCIe5.

this is something that the Samsung 970 Evo Plus is well placed to exploit.
Click to expand...
Thanks I'm looking at a couple of x870e boards at moment gigabyte pro and asus strix
 
I assume that as the B850 doesn't have USB 4 on its ITX iterations that using both M2 drives won't poach any lanes from the GPU. e.g the ASUS ROG Strix B805 I doesn't have USB4 on internal or external ports so I figure its no different from the B650 board of the same model which you can fill both M2's and keep the GPU at x16 ??
 
wildman said:
I assume that as the B850 doesn't have USB 4 on its ITX iterations that using both M2 drives won't poach any lanes from the GPU. e.g the ASUS ROG Strix B805 I doesn't have USB4 on internal or external ports so I figure its no different from the B650 board of the same model which you can fill both M2's and keep the GPU at x16 ??
Click to expand...
That's my understanding of it, yeah (Strix B850-F). But, the 3rd M.2 slot disables what I think is the only secondary PCI-E slot on the motherboard, which could be a problem if you have any PCI-E device (other than a graphics card).
 
Last edited:
nightwish said:
That's an excellent video. I realise now that every single x870 board reserves 4 PCI-E 5 lanes for USB4. Which means 4 fewer lanes for other things. So if you want lots of NVME storage and don't care about USB4, then x670 is actually better for you than x870! That kinda sucks really. :-(

The one exception appears to be the MSI x870E Godlike, where USB4 can be disabled, and then it'll use the lanes for another PCI-E 5 NVME.
Click to expand...
USB has a bandwithd of around 40gb's so rought 32gbs when you add a bit of usb overhead/controller of the nvme drive you use.

Basically you can safely use usb 4 nvme enclosures and even game from it. Its as good as it being directly connnected to your mobo.
 
Spudgun said:
Asrock X670E Steel Legend will let you use 4 NVMe without impacting gpu speed
Click to expand...
But a 5090 running at pci 3 speeds loses about 1 percent performance lol so it doesnt matter.

Yes its crap to have pci share laning but here are some hard truths.

1. PCI Gen 3 speeds on a 5090 negates only a 1 percent loss.
2. USB4 is very fast and relaible for nvme slots with around 3500 mbits transfer rate
 
You must log in or register to reply here.
Back
Top Bottom