Thanks a lot mateThe second M2 slot will go via the chipset in the vast majority of cases, the difference with the B550 and the X570 is that the second M2 slot can support gen 3 only on B550 and it will support gen 4 like the 1st slot will on X570. It could disable a short PCi-E x1 slot to do it, or a couple of SATA ports but it wont take from your main x16 slot.
Basically, if you are using 2 nvme SSD's, which I have been for years myself and you are only using the primary PCI-E x 16 slot then you should be fine, it 'may' be disabling some of the SATA ports or a PCI-E x1 slot to do this, you would have to look in the manual to actually know that though.
None of those Asus boards has good chipset cooler with design straight from anus of brand hype marketroids:
- Actual heatsink under marketing excrements is small.So put there high end graphics card and chipset will be running hot in gaming sessions.
- And hence relies on constant airflow from fan (constricted by more marketing BS) to actually do good job.
- With whole crud put into worst possible palce directly under graphics card to be bathed in its heat.
And should be easy to guess what happens when fan wears out.
Ther's simply nothing to defend in such break down timer design.
Properly designed X570 boards have real heatsink farther from heat of graphics card and can run it passively for as lnog as you have working case cooling.
For example £200 Gigabyte X570 Aorus Elite beats brand overhype Asus boards.
And MSI has even bigger chipset cooler in X570 Tomahawk.
Aorus Elite achieves those chipset temps without need to keep fan constantly running.X570 Aorus Elite chipset heatsink is not that much better, few degrees does not make much difference...
It's also missing postcode, has only 1st PCIe x16 Gen4 from CPU (other is Gen3 from chipset), and few other things.
Asus ROG Strix B550-XE I can see as a much better option than x570 elite.
Aorus Elite achieves those chipset temps without need to keep fan constantly running.
That makes chipset cooler lot better than in most X570 boards relying on fan under heat of graphics card.
Also X570 boards are all fully PCIe v4.
Post code is sure missing, but there's both Intel NIC and also BIOS Flashback.
While that insanely expensive B550 board has second M.2 slot available only by disabling two SATA ports and PCIe x16_3 shares lanes with x1 slots.
With PCIe v3 that means only 4GB/s of total bandwidth for those three slots.
And because of its position PCIe x1_1 is actually blocked by pretty much all high end graphics cards and you have either only one slot for all 4GB/s or with x1 slot in use 2+1 GB/s.
Again PCIe v4 X570 Aorus Elite has 2+2 GB available alone from those x1 slots with x4 slot offering 8 GB/s.
B550 is simply out leagued by X570 in IO, no matter which way you try to twist it.
That second slot of B550 boards steals its lanes from main slot limiting graphics card to same bandwidth as in PCIe v3 slot.x1 slots are more or less useless, for the majority of cards you need x4 slot at a minimum unless you are a miner.
Sure 2nd PCI-e slot on Elite is Gen4x4 from the chipset, but the 2nd slot on B550-E is Gen4x8 from CPU directly, so Elite loose on this point
Also, the automatic dual bios feature
Ok my bad about bios, but what I described is a common issue with most gigabyte dual bios boards.That second slot of B550 boards steals its lanes from main slot limiting graphics card to same bandwidth as in PCIe v3 slot.
That's not something high end gamer should accept.
And for other users there are lot more capable X570 boards at that price level.
Also there are other things than graphics cards.
PCIe v4's 2 GB/s would be enough for plenty of things.
(say 8 port controller card for HDDs)
Aorus Elite doesn't have any dual BIOS.
Stop neglecting B550's limits/IO problems while inventing imaginary ones for X570.
I agree that there are better boards, Dark Hero and x570 Master being best reasonable ones.Unless you get a dark hero, there are better boards.
Never considered B550 to be honest, no one needs PCIe 4 anyway. Hear the Unify X is good.I agree that there are better boards, Dark Hero and x570 Master being best reasonable ones.
My point was that I consider B550-XE as one of the best B550 boards and I also think it's more universal and I consider it better than X570 Elite
Because I have and sometimes use 8port SAS/SATA controller (PCIE gen3x8) or PCIE x8 M.2 extender when I need to copy/clone some data from other PCs.
I simply do not consider x570 boards that do not have 8x,8x PCIE options or postcode and in that case, B550-E/XE is much better than Elite as it offers variability that Elite simply cant.
I don't know, never considered that board, removed it from the list to consider because of only one PCI-e slot from CPU, and looking at it now, 4x M.2, but B550-XE is still better and can get 6 M.2 drives (expander included), and it's slightly cheaper.Never considered B550 to be honest, no one needs PCIe 4 anyway. Hear the Unify X is good.
All x570 boards can have both nvme slots used without affecting x 16 gpu its only when you use some of the 3 slotted x570 boards the gpu goes down to 8xOk my bad about bios, but what I described is a common issue with most gigabyte dual bios boards.
No 2nd slot does not steal anything, it works exactly the same as on any x570 mobo, it either runs x16, x0 or x8,x8 if you want to use both.
Show me any x570 motherboard that can do more than x8x8 if both slots are used.
2ndly on Gen 4 there is zero difference in FPS if you use 8 or 16 lanes, on gen3 you can get maybe 3% hit in some games.
Now it's you making imaginary issues.
No, 8-port SATA controller needs way more than 2GB/s (6gbit/s x8 is 6GB/s), and also you can't fit it in x1 slot as they are made with x4,x8 or x16 physical interface even if they use fewer PCI-e lanes, that's why those physical x1 slots are mostly useless.