2* https://www.aliexpress.com/item/1005003595062598.html
1* https://c-payne.com/products/pcie-bifurcation-card-x8x8-single-width
-> 8* NVME with total bandwidth of gen3 x16
Its the cpu, not the motherboard.
If you want a budget NVME system consider using and old xeon v2 system.
I can suggest one of the Chinese x79 boards. You can fit 2*hyperX cards.
I think the Antermiter x79 turbo could work for you.
Another option is to use an x8x8 bifurcation Card and then two...
Yes your understanding is correct. The latest intel mainstream even only supports x8x8.
The Gigabyte aurus x570 does support x4x4x4x4 though.
Also check the asrock rack x570 as it also boasts 2* oculink 4i for even more storage.
the craziest option would be the asrockrack deep itx...
https://c-payne.com/products/pcie-bifurcation-card-x8x8-low-profile-adapter-ncase-m1-and-others
this bifurcation card plugged into the mainboard slot. The (Low profile!) LSI card into the bifurcation card top slot.
you also need a short (10cm) cable. (i.e. LinkUp right angle, ADT-Link R33SR or...
malexejev
1. option one has no clock distribution. Drives AND Mainboard/CPU must support SRIS. (seperate reference independet spread) clocking architecture.
2. This one has most likely a gen3 clock buffer on board.
Both cards may or may not work in gen4 mode. That depends on too many things...
When using gen3/2 devices you are good.
Ryzen has 24 lanes. (4 chipset, 4 M.2, 16 for slot1/2)
When you use only slot 1 you can use x16, x8x8, x8x4x4 or x4x4x4x4 in slot 1.
When you use slot 1 and 2 you can use x8 or x4x4 in both of them.
Note that on Ryzen two x16 slots.means that they are already split into x8.
can't do x8x8 then of course, only x4x4.
Bifurcation cards and risers in combo are good for gen3. gen4 poses significant challenges regarding signal integrity. Careful consideration neccesary when planning a gen4 build.
The Coolest
my suggestion would be a slimline based solution:
host adapter:
https://c-payne.com/products/pcie-slimsas-host-adapter-x16-to-2-8i
-or-
https://c-payne.com/products/pcie-slimsas-host-adapter-x16-to-2-8i-90deg
cable:
https://www.arrow.com/en/products/8es8-1df21-0.50/3m
device...
with a Packet switch (PLX) you can use any uplink, even x1. The mining limiter wont interfere as long as the Downstream GPU Link is x8.
I have some PLX boards in manufacturing currently.
Hi Guys! sorry for being unresponsive here. That always happens to me because the forum just sends one eMail for the first new post and I tend to miss it.
I have moved my store to a new location: c-payne.com
The Coolest: PCIe Bifurcation Card - x8x4xM.2 - low Profile Adapter - Ncase M1 and...
Uhm, I just checked their page again. It's "R83SR" I can't find the "RS83R". I think they are the same thing though, maybe a misspelling.
Make sure to use the "R" one and not the "L" one as that one won't fit.
I do have an x4x4 card. https://peine-braun.net/shop/index.php?route=product/category&path=65_67
An x4x4x4x4 in the first slot would still be preferable I guess.
Your BIOS/CPU must be capable of supporting this though. Need to verify that first!
sorry for the delay in response.
yep that's the general idea.
The GPU will need some support. Ideally you would mount the riser cable with some custom made pieces to the chassis.
No electrical modifications neccessary on the PCB, but of course you would have to think of a way to properly mount...
Individual ports will negotiate individual link bandwidth. a mix of gen2/3 is very well possible.
Some weird BIOS may screw this up but I haven't seen any.
Try flashing an empty BIOS to the card (after backup ofc!) you can then load the bios through your virtualization software. (or try removing the UEFI GOP)
Alternatively, play around with the UEFI shell. I know it's possible to add a driver to be loaded. Maybe you can blacklist or remove it there.
That will be a tough design work, imagine all the traces crossing each other.. may even need 6 layers for that.
I am sure you can solve it in software!
Please disable CSM in BIOS! Legacy VGA is limited to 1 card. UEFI GOP can handle multiple outputs. You may be able to configure the active...
Not sure if anyone has done this yet...
I cracked open the new 3000 series NVLINK bridge to see whats inside and if we could make custom sized or cabled ones. (i.e. for single slot watercooling)
First remove both of the plastic top covers. Apply brute force.
Secondly heat up the complete piece...
Yes that is a misinterpretion of the specs.
Slot 1 are 16 CPU lanes that could if bios support would be there support x4x4x4x4
The other two x16 slots are chipset lanes each running at x4
Add the nvme you are at 7 x4 devices.
Badrig
Try this one:
https://peine-braun.net/shop/index.php?route=product/product&path=65_59&product_id=68
The cards will sit a bit lower, but by taking a brief look at your case that shouldn't be an issue.