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Colorful Intros a Non-standard Motherboard with Eight PCIe x16 Slots

Discussion in 'News' started by btarunr, Sep 12, 2017.

  1. btarunr

    btarunr Editor & Senior Moderator Staff Member

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    Colorful today introduced an non-standard form-factor socket LGA1151 motherboard for crypto-currency mining builds, the C.B250A-BTC PLUS V20. This board is 485 mm in length, and 195 mm in width, and probably won't fit in even HPTX cases for its intended use, but is suited for custom rack-type setups. It only includes the most bare-essential features to set up a mining rig with up to eight graphics cards, with 2-slot spacing between each card. The board lacks a 24-pin power input, so you can share your high-wattage PSU with multiple machines based on this board.

    It features two 4-pin ATX power inputs for the CPU, and sixteen PCIe power inputs, of which eight can be populated at any given time to supply power to the PCIe slots, optionally all sixteen can be plugged in. The topmost x16 slot is gen 3.0 x16, and wired to the CPU, the remaining seven are gen 3.0 x1, and wired to the Intel B250 Express PCH. The CPU is wired to just one DDR4 SO-DIMM slot, since system memory isn't that big a bottleneck with GPU mining. The board's connectivity, too, is bare-essential, with just a couple of USB ports, an HDMI display output, and a single 1 GbE network connection. The company didn't reveal pricing.

    [​IMG] [​IMG] [​IMG]
     
    Last edited: Sep 12, 2017
  2. neko77025

    neko77025

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    Sweet SLI / Crossfire set up incoming !!! ..
    (joking)
     
  3. YukikazeQ

    YukikazeQ

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    Okay the boards with a ton of x1 pcie slots were one thing but this is just stupid.
     
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  4. Tomgang

    Tomgang

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    Ew thats and ugly child colerful just got there and for mining i asume?

    If yes dosent make it better :confused:
     
  5. RejZoR

    RejZoR

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    This just screams cryptomining...
     
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  6. Frick

    Frick Fishfaced Nincompoop

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    It's also why there's so much space between the slots, I assume. Here's a motherboard with seven slots:

    [​IMG]
     
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  7. silentbogo

    silentbogo

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    Overall, I get it. Perfect for mining, with lots of real estate and no need for raisers. The only thing I don't get is why add an MSATA slot which most likely not going to be used, while not putting at least one USB3.0 port, so you can deploy this thing faster and w/ keyboard & mouse present at the same time (there is also a USB 2.0 header, but who needs it if there is no chassis). Also, wire management on motherboard is a waste of parts and copper (I'm talking about whooping 16 PCIe power connectors). Just leave a few 4-pin or 6-pin connectors for slot power and let miners do the wire management for external connections.
     
  8. trog100

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    in theory you could just bung 8 two slot cards straight in without risers.. i recon it would run a tad on the warm side though.. :)

    but i think i like it.. he he..

    trog
     
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  9. StrayKAT

    StrayKAT

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    To be serious, I don't think you could do much at all... let alone 8 :p I just bought a 4 slotter with a PLX chip. This doesn't seem to have it.
     
    Last edited: Sep 12, 2017
  10. silentbogo

    silentbogo

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    It's not just. You can also:
    - Get into AI research
    - you can fold with those for the good of humanity
    - Cracking passwords!
    - Warming up the basement/garage/tool shed
    - Utilizing unused CPU/RAM/storage power to run NAS, do Excel spreadsheets, or draw ugly pictures in Paint3D.
     
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  11. StrayKAT

    StrayKAT

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    Damn that was quick. I just ninja'ed the last bit actually. ;)
     
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  12. Beerbam New Member

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    Have you ever used one of those boards, if yes, I can't understand why you think it is stupid?
    It helps a lot to save time and possibly money to build the missing parts around those, x1 cramped together, boards.
    There are enough pictures from mining farms using similar designs like that board.
    Those are mostly without cpu socket, what makes it possible usable for me.

    And besides crypto, the other mentioned enough use cases.
    e.g. an alternative for the 2K$ upwards Nvidia KI Ubuntu Tower.


    If you are interested:
    Those Boards with a bunch of x1 sticked together are mostly derivations of the cheapest Designs.

    I only have in use a H81 PRO BTC and R2.0 but I'v checked most of the Boards in reality.

    - PCBs bend in all directions as the layers for stability are missing or the wrong materials,
    - they have to mention the feature that the power rails on the PCB have enough copper to power the connectors, if you need them be shure that they mention it.
    - you need the extender Boards, where if you need quality you have to add each 7$ and above.
    - you have to get the routing correct fot the x1 the get even GEN2 speed , if you e.g. cross Power lines or have to much bending on the cheap USB3(3.1) cables you can be happy to get GEN1 working.
    etc.
     
  13. micropage7

    micropage7

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    no thats i prefer with raisers
     
  14. Fouquin

    Fouquin

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    Boot device? Why add more cables with a standard SATA device when you can just slot a little MSATA drive on large enough to store your operating environment?
     
  15. ebivan New Member

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    That's almost what I have been looking for!
    I do not do any crypto mining, but I really would love such a "no bullshit" Mainboard for my PC builds.

    I don't want:
    -crappy Realtek NIC,
    -crappy Realtek Sound
    -childish RGB lighting
    -additional cheap SATA controllers
    -any other bullshit, that costs money and has no use

    So actually I'm paying for a lot of stuff that I don't use with every mainboard.

    I just want a CPU Socket, DIMM slots, the chipsets' own SATA ports, some adjustable fan control and as many PCIe slots, as the chipset can give me. (maybe like one 16x, two 8x, two 4x and two 1x) So that I can put in quality gpu, nic and soundcards of my own choosing. And reuse those components when I switch to another motherboard...
     
  16. Fouquin

    Fouquin

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    A motherboard so tall it could be used as a door?
     
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  17. silentbogo

    silentbogo

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    Maybe, but in a small-scale mining operations going with reliable SATA vs reliable mSATA will save you $20-$30. I've seen some dudes simply running claymore on Ubuntu off the 64-128GB USB3.0 flash drive. Not sure if it's good or reliable, but it's definitely cheap and small... :banghead:

    You can also flip it, cover the back with thermoresistive kitchen pads and use it as a coffee table (w/ built-in cup warmer) :D
     
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  18. ebivan New Member

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    As I said, for regular PC builds not for mining or other 2+ GPU setups, so standard ATX would be preferred ;)
    I mostly meant the "no nonsense" approach is what I'm looking for.
     
  19. RejZoR

    RejZoR

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    This motherboared is so tall because it's meant to be stuck on a rack, not inside a case. Miners run these on open "benches".

    Also the ridiculous number of power plugs. 2x8pin for each PCIe XD I just wonder how you daisy chain PSU's to work, there is no way any PSU has so many PCIe power connectors. But you need to synchronously fire them up, you can't just run them afterwards...
     
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  20. nemesis.ie

    nemesis.ie

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    This totally needs a Threadripper version, x4 per slot with maybe a couple with a bit more.
     
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  21. R-T-B

    R-T-B

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    Molex->PCIe power
     
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  22. verycharbroiled

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    I like this. Risers are the weak link in mining rigs.

    Still, two slot spacing is pretty tight for cooling 8 full length cads unless they are blower cards. Maybe alternate full size and ITX sized cards.
     
  23. nemesis.ie

    nemesis.ie

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    Or just cable tie a couple of 200mm fans blowing through them. ;)
     
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  24. verycharbroiled

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    De
    Deltas maybe.

    But I like the simplicity of non riser rigs that are more or less self contained, zip tied fans kinda ruin that. But gotta do what you gotta do to keep it cool.

    EDIT I also like the fact it doesn't use the 24 pin at connector making it ideal for use with server psus.

    They should of included a power on/off switch.
     
    Last edited: Sep 12, 2017
  25. eidairaman1

    eidairaman1 The Exiled Airman

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    Looks stupid for a design, i guess colorful is doing what biostar is, they can't compete so they march to their own drum.
     
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