hi, I have an asrock B550M-ITX/ac and wanted to know what can i do with it. The idea is to get the most expansion of the slots.
I was thinking on installing a m.2*4 card on it (one without dedicated bifurcation chip, just direct wiring). In the bios says the pcie x16 can be splited on x8x4x4 where j10 x8 and j3600 4x4 or x4x4x4x4 where j10 x4x4x4x4. So what is j10 and j3600?
And the available options with my 5600g are x16, x8x8, x8x4x4. Does that mean that the x16 slot can be x16, x8x8, x8x4x4?
You could use an pcie 8x4x4x riser and could Add an pcie like this € 13,44 18％ Rabatt | PCIE X16 zu X8 + X4 + X4 Splitter Adapter Karte, Unterstützung PCIE 4,0. 2 NVME Port Expansion Riser Karte Starke Kompatibilität https://a.aliexpress.com/_EuGLrMB
And Add zwo of them plx to Dual m.2 by 4x cards like them € 66,00 33％ Rabatt | Dual NVMe PCIe Adapter, m.2 NVMe SSD zu PCI-E 3,1 X8/X16 Karte Unterstützung M.2 (M Schlüssel) NVMe SSD 22110/2280/2260/2242 https://a.aliexpress.com/_EJ5Yr7z
All nvmes have one pcie 1x lane
So you have 1x8x for gpu and 4x1x for nvmes or other expansions or 8x1x nvmes and so on.
That is very nice, didn’t know that exist, thanks
The yes answer was helpful but because I don’t know over these things, the examples help even more
is it any card that makes x4 to x1x1x1x1 to add 4 nvme at a reasonable speed for storage?
I could find just a iocrest with jmb585 that makes pcie x2 to 5 x nfgg
I am aware of the pcie x and speeds on each versions, thanks
It seens that i can not jet post links, i will put the title instead so you can search it
“IOCREST PCIe 3.0 x 16 to 5 M.2 SATA SSD B- Key NGFF Controller Card Using JMB585 Chip Support 2280, 2260, 2242 and 2230 Size” pcie x2 to 5 nfgg card This is the card I found, there are also for nvme, but just 2 at that price.
but I was also asking if there is something like this “M.2 Riser Card M2 NGFF NVME to 4 Ports PCIE 1X PCIE PCI Express X1 Slot Multiplier Hub Adapter For Antminer Bitcoin Miner Mining” pcie mining multipliers but that are able to split the x4 into x1x1x1x1 instead of x1 to x1x1x1x1. There are some chips like the ones from asmedia but cards couldn’t I find not.
A m.2 6 sata adapter is an alternative but 2.5"drives are bigger than m.2 ssds and having 1 drive on x1 bus should be better than all hanging on x1
I am asking just for curiosity, to know what are the things that are available, to have more options while building a system, because i find out here the existence of the x8x4x4 adapter
iam kind of baffled, it seems that is does indeed split the pcie lanes but hen it needs some sort of plx chip.
in theorie it could connect 4 nvmes drives with 1x speed each and combines of course a full 4x speed if hit at once or RAIDed.
i gues this is a working example… eben with an 1x slot…
I am tempted to buy some cheap little nvme to test if it works but on the other hand, don’t want to waste money. I have that card but also don’t see any advantage of having 4 nvme pcie v3/4 over x1 v2, that is why I asked if there is a card that makes x1x1x1x1 so each nvme gets at least 1x v3
the mining splitter is not usb, is pcie, it uses the usb plug just to make it easy to install, because is cheap or because they don’t care making it confusing.
pcie 2.0 x1 is only 500MB/s, that is not a very fast cache. And using an ssd over usb is also slow, not to many iops i think, i use an ssd over usb for windows on my steamdeck and it freezes all the time while accessing the drive
There are riser cards that use bifurcation. Bifurcation is a UEFI/BIOS feature that enables splitting of PCIe lanes connected to a single slot. No card of this nature will offer a different split than what is offered in your UEFI/BIOS.
Then there are PLX-based riser cards, these contain a relatively expensive PLX chip that switches the PCIe lanes from the mobo into a number of other PCIe connections. These cards cost several hundred $$$ and are probably not what you’re looking for.
As an example check out this Highpoint card:
No, I am not aware of a PCIe 4x to 1x1x1x1x switching card or solution - although very interesting, especially if it is Gen4 or Gen5 capable
So this is the card I am looking at to use with my Asus b550 but with your board will only get a max of 2 lanes of pci x 4 nvme or 2 for the 5600g has only 8 lanes max to the pci because of the onboard video
