Asus ROG Crosshair X870E Hero - is it possible to have 2 x PCie5.0 SSD's?

[MnsoonMally]

Yes, this board is also a consideration. It actually offers more USB; but slightly slower LAN.

Still a good option though. One of the other better ones I've looked at.

 

[oweneades]

Just as a note the Strix 870E-E board does have the 3 Gen 5 slots but per the tech specs they share bandwidth with the X16 Gen slot (GPU).

ROG STRIX X870E-E GAMING WIFI | Gaming motherboards｜ROG - Republic of Gamers｜ROG United Kingdom

The ROG Strix X870E-E Gaming WiFi elevates builds with 18 power stages, DDR5 slots and extensive PCIe 5.0 connectivity. It features five M.2 SSD slots with heatsinks, USB4® support, WiFi 7, AI Overclo

rog.asus.com

Won't really matter in the real world (right now) but something to factor in.

 

[SpellowHouse]

Just as a note the Strix 870E-E board does have the 3 Gen 5 slots but per the tech specs they share bandwidth with the X16 Gen slot (GPU).

ROG STRIX X870E-E GAMING WIFI | Gaming motherboards｜ROG - Republic of Gamers｜ROG United Kingdom

The ROG Strix X870E-E Gaming WiFi elevates builds with 18 power stages, DDR5 slots and extensive PCIe 5.0 connectivity. It features five M.2 SSD slots with heatsinks, USB4® support, WiFi 7, AI Overclo

rog.asus.com

Won't really matter in the real world (right now) but something to factor in.

Yes, given the choices here, the better one for me would be the ASUS ROG Strix X870-F Gaming WiFi. The reason is that I would ignore M2 slot 2, which compromises the main GPU slot, and use M2 slots 3 and 4 which compromise the unused second GPU slot.
Not that this is my thread - just sayin!

 

[oweneades]

Ah if only HEDT was available at prices that don't selling more than one organ we could all have USB4, PCI-E and M2 drives for days.

 

[Tombs75]

So is there any huge gain getting a X870E board over a X670E?

I was looking at the ROG X870E Hero as currently im using 4xNvme's 2tb drives as my storage. If I cant use more than one without it halving the gpu lane theres not much point.
Currently im using aAsus hyper m.2 x16card v2 4xm.2 socket 3 on my system plugged into a pcie socket, that holds 3 nvme drives so ones on the board.

Would the 9800x3d fit into a Asus ROG strix X670E-E board and would this do pretty much the same job as the 870 board? I probably will have to use the hyper m.2 card to house my nvme's rather than have them on the board if its cutting the lane speeds.

Also the ASUS ROG Crosshair X670E Hero is a possibility,all dependant on if the cpu socket is correct

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[Tetras]

Would the 9800x3d fit into a Asus ROG strix X670E-E board and would this do pretty much the same job as the 870 board?

There's three primary differences between X870E and X670E that I'm aware of:
1. Mandatory USB4 on X870E (it is optional on X670E).
2. Higher stated memory speeds due to the BIOS being updated with this support.
3. WIFI7 (not sure on the details).

Assuming the BIOS is updated with the CPU support, any X670E motherboard should function with no meaningful differences with a 9000 series CPU. The 9000 series were actually released without any motherboards, so they HAD to run on the existing 600 boards.

 

[Jamin280672]

Sorry if this has already been mentioned, but the reason you end up with shared lanes is because X870E USB4 steals 4 lanes from the CPU, so effectively you only end up with 20 usable, 16 for the one of the GPU and 4 for the one of the M.2 slots, any further PCI-e 5 nvme's then share lanes with the GPU slot and it gets reduced to x8 instead of x16, it gets even more confusing if you have further PCI x16 slots, some get disabled completely depending on which m.2 slots you're using and others get dropped to x4.

This is where X670 differs from X870, X670 uses the intel thunderbolt controller for USB4 if the board has it and doesnt steal any lanes, X870 uses the ASMedia controller and needs 4 PCIe Lanes, i'll stick with my ASUS X670e Gene which has 2 x gen 5 nvme slots and a gen 5 x16 GPU slot, 1 x Gen 4 nvme slot, along with USB4, nothing stolen, nothing shared, and does 8000MT/s ram on 7000 series chips and beyond on 9000 series chips, but came at a price and if you can find one, are a lot more expensive today than they were at release.

I think the closest decent board to it you can buy at the moment at a decent price which is excellent for RAM overclocks is the ASUS B650E-i, just comes back down to the 1 DPC thing, but no USB4.

It all comes down apparently to tracing, they could have run the USB4 off the chipset as it only needs 4 x PCI 4.0 lanes, but due to tracing distance, they decided to run it off the CPU instead and steal 4 x PCI 5.0 lanes instead.

 

[McCarthy]

So you can’t use 2 NVME PCIE 5.0 drives without it affecting the GPU? Will it be ok to use one PCIE 5.0 and another 4.0 on the X870 Hero?

I was planning on 2 5.0 NVME but it seems like this would be a waste of money.

Also what is the penalty of the GPU dropping to x8?

 

[Tetras]

So you can’t use 2 NVME PCIE 5.0 drives without it affecting the GPU? Will it be ok to use one PCIE 5.0 and another 4.0 on the X870 Hero?

From looking at the manual, you would need to use the chipset M.2 slots for the PCIE 4.0 drive. It doesn't matter if you use a 4.0 drive in the CPU's PCI-E 5.0 slots because the lane sharing is hardwired, so it has the same outcome.

I was planning on 2 5.0 NVME but it seems like this would be a waste of money.

For most use cases they're a waste of money anyway.

Also what is the penalty of the GPU dropping to x8?

Minimal, a few percent with a 16 lane card.