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CPU Lanes - Choice
- Thread starter noobftw
- Start date
Why not just add up your PCI-E lanes given what you've posted at the start of the thread?
NVMe - 4x lanes (dedicated)
RTX 3090 - 16x lanes (unless you are happy to run 8x PCI-E 4.0 but you need 11th Gen Intel for that or Ryzen.)
Intel X540 (T1 or T2?) 4x or 8x lanes depending on which one you have.
So you need 24-28 dedicated lanes, which the 10th Gen can't offer, it is 16x lanes from the CPU, then 4x QPI link multiplied out.
To answer your question a cheap 10900K isn't a great solution.
Can't he just run the X540 from the Chipset?
Yes, and on the 10th Gen Intel you are also running the NVMe from the chipset lanes at the same time, and there are only 4x of them in total back to the CPU, so if the card is a X540-T2 they'd need 12x lanes to use it at full tilt, not that I expect they would need to run dual 10GbE NIC's at full duplex, but maybe one of them.
I just googled it, you're right, the 10900K only has 16 usable PCIe lanes on the CPU, that's a bit crap isn't it?
It's literally my day job, so I'd hope I'm right.
Also it is a bit poop, but they are making improvements... slowly, very slowly.
It's literally my day job, so I'd hope I'm right.
Also it is a bit poop, but they are making improvements... slowly, very slowly.
NVMe Drives have been out for years, you would think Intel would provide enough lanes on the CPU to run both the GPU and your primary NVMe Drive, if nothing else on their halo CPU, nope.
What a shower of ####
As pointed on on the previous page the ASUS Pro WS X570-ACE would fit the bill nicely, as it has a fully wired 8x PCI-E 3.0 slot coming off the X570 chipset, and still has the dedicated lanes for the NVMe (4x) and 16x lanes for the GPU.
I think HEDT is the best answer money no object all the lanes no messing, TR is where it's at.
Though in my Asrock RAck X570D4U-2L2T board I am running 12 sata drives, 6 NVMe and GPU with 10G etc, so a lot can be done mainstream accepting bandwidth limitations if everything runs full tilt.
Though in my Asrock RAck X570D4U-2L2T board I am running 12 sata drives, 6 NVMe and GPU with 10G etc, so a lot can be done mainstream accepting bandwidth limitations if everything runs full tilt.
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I don't mind running my NVME off the Chipset, I'm sure my 970 Evo, which is far from the fastest anymore, will still max out, and i could replace the current NIC with an x550-t2, which only needs x 4 Lanes. What do you think?
Thanks for the help btw
You could do that with the X550-T2, but surely then you are just losing the savings from the 10900K, and limiting yourself for the future without swapping the CPU any how.
Certainly most Ryzen platforms offer 4x on the chipset so that should be a go-er for leaving a 16x for GPU.
I can't really speak for Intel, not had one since z77 and back then abundant PCIe switches were more common place on motherboard to give you more bandwidth sharing options for slots so I never had an issue running 3/4 GPUs etc. I think the z5xx have bigger DMI bus so should have ample bandwidth available.
I can't really speak for Intel, not had one since z77 and back then abundant PCIe switches were more common place on motherboard to give you more bandwidth sharing options for slots so I never had an issue running 3/4 GPUs etc. I think the z5xx have bigger DMI bus so should have ample bandwidth available.