eGPU Supporting bifurcation??? I doubt it.
I'd like to find out.
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eGPU Supporting bifurcation??? I doubt it.
eGPU Supporting bifurcation??? I doubt it.
I love the spirit though, it's what pushed me to explore bifurcation in the first place. Give the man a beer.
I am planning a new batch of DIY Risers.
Anyone interested in a particular design?
(Single/Dual Slot, left/right turn, M.2 Slots?)
You mentioned M.2 slots.I am planning a new batch of DIY Risers.
Anyone interested in a particular design?
(Single/Dual Slot, left/right turn, M.2 Slots?)
That adapter won't work. I've tried it about 6 months ago. Bought 2 off ebay, neither worked.
(Those are high speed signal traces after all, despite of what some chinese "RISERS" might suggest)
Compatibility was hit and miss.
Hi, here is the dimensions. Thanks man, for uh.. everything.My Interpretation: Cheap NIC-> Cheap tranceiver / Cheap PCB / Cheap routing on NIC->not working
As for firmware I think some might be more tolerant to transmission errors/ tolerate more retransmits or negotiate slower speeds or negotiate less lanes.
At least that is what I believe.
I had a similar situation where I put a cheap 2 layer x8 -> x16 riser or 1cm length inbetween my GPU and Riser and it stopped working in gen3. Replacing it with an adequatly routed one fixed it.
That is why i spend a considerable amount researching proper lane routing when i made my risers.
My idea is to add a PCIe slot for bifurcation connected to the underside of the mobo, with or without modding the mobo. I'm thinking about soldering or using a custom-ended flexible flat cable pressed against the pins.
My idea is to add a PCIe slot for bifurcation connected to the underside of the mobo, with or without modding the mobo. I'm thinking about soldering or using a custom-ended flexible flat cable pressed against the pins.
This is madness and I wish you the best of luck!
Is the mobo's REFCLK just divided, 50MHz for each slot, or is there more to it?
You don't know how much it means to hear this from someone who made a working solution.In my imagination it could be done physically
Right on, no need to be sorry. That won't deter me from thinking outside the box though!This leads me to think you do not have the technical knowlege to pull this off. Sorry.
Why thank you!This is madness and I wish you the best of luck!
The idea is to get PCIe bifurcation working for more people ultimately. It's not every day that you hear about "mini-ITX" and "SLI/XF" in the same thread, if not to make it a drawback of going mini-ITX!How about a carefully considered case mod.
... there's only one motherboard with two physical PCIe 16x slots and mini-DTX width (fitting in most mini-ITX cases with two PCIe brackets), the Shuttle X79. Which requires going with at least an i7-3930k, on Sandy-Bridge-E architecture.
The SLI "certificate" is just a fee paid to nVidia to say "yes, this mobo supports SLI". As we've seen in this very thread, non-certified mini-ITX boards support SLI through bifurcation. They didn't pay the fee for the Shuttle
All I can say is good luck!That's news to me. I found conflicting reports, so I'll take your experience over hearsay.
Back on topic. From my calculation, I'd need 8 4-pairs ethernet cables to get all the pins just from the back of the slot. I'm looking to avoid having that many. Simple question: can the ground pins of the additional PCIe slot on the daughterboard be connected to any ground? Like, directly to a PSU ground?
Edit: I was looking into LVDS and twisted pairs, and Cat 6a may not be suitable. I need to select a cable that can handle 8GT/s over a single twisted pair, over a relatively short distance compared to the 100m "standard", while not having too much shielding to help with the bend radius... My current knowledge doesn't allow me to make a decision. So much to learn!
Edit2: wait, people use PCIe ribbon cable adapters. Untwisted. Am I overthinking this?
All I can say is good luck!
C_Payne, if you happen to pass by, may I ask which IDT-9DBL02 chip you used, what are the components around it and their roles, and is the spacing of the components important or can they be placed closer together?
Are you at ease with impedance controlled routing?
Thank you much! I'll look more into it. I already went to it for the package dimensions and pinout to recreate it in Eagle. Baby steps, but I'm getting... somewhere.
Just adding some info here.Or even the Fatal1ty X370 Gaming ITX/ac's manual: http://asrock.nl/downloadsite/Manual/Fatal1ty X370 Gaming-ITXac.pdf
EDIT: WHOOPS! It is actually mentioned on page 57. Deleted the rest to avoid confusion.
I found nothing on z270 manual.* Supports PCIe riser cards to extend one x16 slot to two x8 slots.
I have had some requests and made the following additional bifurcated risers.
I have PCB's left for each of those designs.
PM if interested.
Chris
Will send pmC_Payne Or just the schematic surrounding the zero delay buffer or a hint to the application note you sourced? I am breaking out a x16 to four x4 OCuLink connectors for fly-over cables in my design.
Would something like this work with M.2 PCIe SSDs?
Yes.. I even made a PCB to test mith M.2 in an earlier batch. Sadly I screwed up TX and RX .
Bifurcation must be supported by your Mainboard obviously.