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CPU Lanes - Choice

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31 Jul 2011
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321
I want to upgrade my system to either an i9 11900k or 5950x and appropriate motherboard, I require the following components to be connected,

• X1 NVME (Samsung 970 Evo)
• X1 3090FE
• X1 NIC (x540)

Do I have enough PCIE lanes to run all this on either setup?

Thanks in advance.
 
I want to upgrade my system to either an i9 11900k or 5950x and appropriate motherboard, I require the following components to be connected,

• X1 NVME (Samsung 970 Evo)
• X1 3090FE
• X1 NIC (x540)

Do I have enough PCIE lanes to run all this on either setup?

Thanks in advance.

Yes, either of those will be fine.

11900K: 20 PCIe 4 lanes on the CPU.
Z590 Chip set: 24 PCIe 3 lanes

5950X: 20 PCIe 4 lanes on the CPU
X570 Chip set: 16 PCIe 4 lanes
B550 Chip set: 10 PCIe 3 lanes

So with both the CPU would run the GPU and primary NVMe from the CPU, extra NVMe and expansion from the Chip Set, so your NIC (x540) would be run by the Chip set.

11900K vs 5950X is a bit wired tho, the 11900K has 8 cores 16 threads, the 5950X has 16 cores 32 threads, they are completely different CPU's with the 5950X being much faster in heavy workloads, for an 11900K equivalent from AMD would be the 5800X, Intel just like to charge silly money for the 11900K because its their halo CPU, an 11700K is actually pretty much the same CPU with slightly lower clocks.
 
From my experience (and I've seen a few others on this forum saying so too) it seems to run surprisingly hot at idle, but then without a big jump under load.

In my system with a 360 AIO cooler it gets into high 40's at idle, but then no more than 75c or so under full single core load (which seems to cause the highest voltages), then 65c under all-core load.
 
Just get the best cooler you can fit in your case but do you need 16 cores ?

AMD the MSI x570 Tomahawk wifi is one of the best value motherboards
I have a custom water loop, x2 420 30mm thick rads, but the CPU will be in the loop with a 3090FE, have to hope that's enough cooling power.
 
Thanks for the reply, I think I'll go with AMD this time. Does this puppy run hot?

The 5950X? its a 16 core processor, yes and no, its hot, but not too hot, use a decent cooler and it'll be fine, other chips, including that 11900K run hotter.
 
Any x570 motherboard recommendation's that don't have a small fan on the mobo? I'm coming from an Asus Rampage Apex that I think was really decent/high end at the time of purchase.
 
Any x570 motherboard recommendation's that don't have a small fan on the mobo? I'm coming from an Asus Rampage Apex that I think was really decent/high end at the time of purchase.

No idea, i use a midrange B550 and could not be more happy with it, others use X570, hopefully they can give you some good advice but as i understand it the fan is not a problem. :)
 
Any x570 motherboard recommendation's that don't have a small fan on the mobo? I'm coming from an Asus Rampage Apex that I think was really decent/high end at the time of purchase.
All x570 motherboards have a small chipset fan there going to be releasing the x570S motherboard soon with a passive heatsink.
 
All x570 motherboards have a small chipset fan there going to be releasing the x570S motherboard soon with a passive heatsink.

Do they get noisy? I had a motherboard a while back with a chipset fan and it drove me mad.

X570 AORUS XTREME, has a passive cooling backplate and comes with built-in 10GB LAN support, think i just fell in love haha

Anyone got hands on experience with the X570 AORUS XTREME?
 
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If you don't require mad OC options the Asrockrack x570 boards come with dual 10G nics onboard plus no fan on chipset been running a 5950 in mine churning away on stuff, seems rock solid.

BIOS is atrocious being server biased but IPMI web interface is great etc, it doesn't look sexy, no rgbs but it works great. (~400quid) its microatx but with all that onboard you don't need much else.

An alternative is the asus x570 ace ws, it allows 8 lanes on chipset so if like me you don't really use stacks of usb etc it is perfect for a dual 10gb NiC leaving you with a 16x for GPU and 4x for NVMe, (~300quid) not sue wha oher option here are for 8x wired lanes from chipset for a 3rd slot, allowing for 8/8/8 config.

Your NVMe has it own dedicated lanes so no problem there.

x540 needs an 8 lane config typically so can't run off of chipset on a lot of boards as they often only wire for 4x lanes, so you might be better off with an x4 aquantia etc. If you can't run of chipset lanes it means your GPU drops to 8x as it has to split the 16 to 8x/8x, not the end of the world but you need to confirm the board supports your desires.

typical pcie lane config is

cpu pcie slot 1 = 16x
cpu pcie slot 2 = 0x
chipset pcie = 4x

or if you use second slot

cpu pcie slot 1 = 8x
cpu pcie slot 2 = 8x
chipset pcie = 4x

which makes the 8/8/8 config quite unique, allowing for 16/0/8 too.

block diagram from chiphell.

X570_PCIe_Lanes.jpg
 
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• X1 NVME (Samsung 970 Evo)
• X1 3090FE
• X1 NIC (x540)

Do I have enough PCIE lanes to run all this on either setup?


Guy above beat me to it as I didn't get a chance to reply last night, but you should be looking at the ASUS Pro WS X570-ACE if you want to use the Intel X540-T2 card, as it requires an 8x PCI-E slot, due to the age of the card design, obviously you could replace the card or buy a board with 10GbE on-board but that is extra expense. The ASUS Pro WS X570-ACE is my go to board for workstation style AM4 builds, it is a solid board, with great flexibility as an example it has a U.2 connector which is excellent if you want to run an enterprise class SSD, or 3DXpoint/Optane drive without clogging up a physical PCI-E slot.

Also, IMO it looks super clean. :)
 
If you are not in a rush, it might be worth seeing what TR5000 brings in August, there were rumours that a 16/32chip would hit that platform this time and drop into a TRX40 board, these are far better value than any highend x570 board and you will get all the lanes and scope for expandability a low end TRX40 board is cheaper than some of these x570 mentioned and offers so much more.

Obviously the chip will cost more but if they do an entry level it might not be so bad, certainly wasn't went I did entry level back with original Ryzen, made a much better choice than normal desktops, give me the ability to add loads of NVMe as storage needs grew, 10Gb card, capture cards etc, GPUs with no lane issues. Nice platform none of this desktop lane budgeting m,alarky.
 
Yes, either of those will be fine.

11900K: 20 PCIe 4 lanes on the CPU.
Z590 Chip set: 24 PCIe 3 lanes

5950X: 20 PCIe 4 lanes on the CPU
X570 Chip set: 16 PCIe 4 lanes
B550 Chip set: 10 PCIe 3 lanes

So with both the CPU would run the GPU and primary NVMe from the CPU, extra NVMe and expansion from the Chip Set, so your NIC (x540) would be run by the Chip set.

11900K vs 5950X is a bit wired tho, the 11900K has 8 cores 16 threads, the 5950X has 16 cores 32 threads, they are completely different CPU's with the 5950X being much faster in heavy workloads, for an 11900K equivalent from AMD would be the 5800X, Intel just like to charge silly money for the 11900K because its their halo CPU, an 11700K is actually pretty much the same CPU with slightly lower clocks.

Would the above be possible if I used an i9 10900k, I can get a really good deal on one. I could use a z490 or z590 motherboard with it, although I know there are a few caveats.
 
Any x570 motherboard recommendation's that don't have a small fan on the mobo? I'm coming from an Asus Rampage Apex that I think was really decent/high end at the time of purchase.
IfF you have good case cooling fans of boards with properly designed chipset cooler like Gigabyte X570 Aorus Elite and MSI X570 Tomahawk are unlikely to run ever.
(overall Asus has the worst designs relying on fan to actually do good job at cooling)
 
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