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Mini-DTX Hype Thread (ITX with two PCIe slots!) - Page 83

post #821 of 976
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Whoever releases the first mDTX motherboard will receive eternal glory once Linus gets a hold of it. That motherboard will dominate every single high-end build in an ITX case. Just imagine all the possibilities!
post #822 of 976
Quote:
Originally Posted by CynicalUnicorn View Post

Okay, so a question about this. If you got a very, very high-frequency multiplexer, could you send 16 PCIe lanes over the equivalent of just one? For PCIe 2.0, it'd have to run at 40GHz, but... Could it be done?

The generations of PCIe only ever increase that frequency and specify how to design a board that can reach it. So at PCIe 4.0, you could probably do something like that and make it work, but the electrical components aren't really up to snuff at the moment.
post #823 of 976
Not just frequency. Also encoding. 1 and 2 used 8b/10b, meaning 8/10 bits sent were usable data. 3 and 4 use 128b/130b, meaning only two bits of 130 sent are useless. Transfer rate went from 2.5GT/s to 5, then 8 with better encoding and 16 is planned next. Bandwidth about doubles each time though.
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post #824 of 976
CES had some interesting motherboards coming to market. Not sure on the form factor... larger than mITX.. but with two PCIe slots. One on each end. One traditional, and a new integrated right-angle PCIe slot.


Besides Asus, other manufacturers were showcasing this new mobo option. Presumably these are for AIOs. Now, we just need a case. Discussion on SFF here.
Edited by Runamok81 - 2/8/16 at 5:34am
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post #825 of 976

Can always convert m.2 to pcie 4x

 

post #826 of 976
Quote:
Originally Posted by Runamok81 View Post

CES had some interesting motherboards coming to market. Not sure on the form factor... larger than mITX.. but with two PCIe slots. One on each end. One traditional, and a new integrated right-angle PCIe slot.


Besides Asus, other manufacturers were showcasing this new mobo option. Presumably these are for AIOs. Now, we just need a case. Discussion on SFF here.

Very neat, but also very limited in cases.

Best use would be a ribbon cable to route that pci slot to the bottom.
post #827 of 976
Either that, or have a very wide but flat case. PCIe brackets, I/O shield, and more PCIe brackets all along a line.

It would look silly, but it could probably fit in a 1U without too much custom work.
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post #828 of 976
i just wish they'd design an expansion port like the thunderbolt port, 12V power delivery with 8x PCIe lanes, that would allow external units or internal expansion boards.


in any case, we need more boards like this:



i mean come on, this is like the cheapest design they could dig into, small board foot print, minimal components and good layout.
its such a fantastic board design i'm doubting whether their marketing side have working brains, why aren't they mass producing this type of board?

they could even make this type of board into a higher tier board.
they've got high-end ITX boards so i can't even imagine them not being able to do it on a DTX board, this isn't even classified as a DTX board, rather a custom MATX.
Edited by epic1337 - 2/8/16 at 4:43pm
post #829 of 976
Quote:
Originally Posted by epic1337 View Post

i just wish they'd design an expansion port like the thunderbolt port, 12V power delivery with 8x PCIe lanes, that would allow external units or internal expansion boards.


in any case, we need more boards like this:
i mean come on, this is like the cheapest design they could dig into, small board foot print, minimal components and good layout.
its such a fantastic board design i'm doubting whether their marketing side have working brains, why aren't they mass producing this type of board?

they could even make this type of board into a higher tier board.
they've got high-end ITX boards so i can't even imagine them not being able to do it on a DTX board, this isn't even classified as a DTX board, rather a custom MATX.

Hell, they could copy/paste the circuitry on their existing ITX boards and drop a second slot on their. Routing the extra traces wouldn't be too difficult, as there'd be a touch more PCB to work with. It's more likely that their design team hasn't thought that people would want or buy a board like that. Most would probably figure they've covered the bases between ITX, mATX, and the board you pictured. There are very few CF/SLI-compatible single-slot cards on the market before you take watercooling into account. After you do that, you have more card options, but your target demographic is reduced even more because of the number of people who watercool.

When you really dig, I'm sure you'd find a reason why a company wouldn't want to produce a board like this. It sucks, but it's true.
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post #830 of 976
well theres those reasons, but 1x first slot and 16x 2nd slot is a good idea none the less.
most users would stick a sound-card or wifi-card on that 1st slot, and place the GPU on the 2nd slot.
heck even MATX users that doesn't go SLI/CF would stick a sound-card on the 3rd or 4th slot, and GPU on the first slot.

these types of boards are compatible with most dual-slot ITX cases (if using single-slot GPUs), or triple-slot ITX cases and MATX cases.
and such a smaller design could save them some money on mass production, smaller board, less components and a universal design.


on a side note, the only reason why ITX isn't that much of a popular choice is because its quite a bit more expensive than entry MATX boards.
and the reason why ITX is expensive is probably because they've only targeted the high-end market with their ITX boards.
since high-end ITX boards have more components, this also means they're using a PCB with more layers, which is a lot more expensive.

if they could release ITX boards at the price thats equal to entry MATX boards ($60~$80) then quite a bit of users would switch towards those boards.
Edited by epic1337 - 2/8/16 at 5:24pm
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