Colorful releases motherboard that can hold eight dual-slot graphics cards

by Hilbert Hagedoorn on: 09/12/2017 08:35 AM | Source | 20 comment(s)

The mining craze is doing crazy things, try fitting this one in a chassis :) Of course these mobos do not end up in one, but Colorful is releasing the C.B250A-BTC PLUS V20 motherboard, with eight PCIe x16 slots.

The LGA1151 motherboard has a unique PCB size at 485 × 195mm and was fitted wioth the Intel B250 chipset. It has one x16 connection and then 7 mechanical x16 ones running x1 (total eight PCI-Express). There is a lot of spacing for graphics cards, ergo you can use dual-slot graphics cards.

The main specifications:

Intel LGA1151 CPUs
HDMI port
SO-DIMM slot
support DDR4 2400/2133MHZ memory
PCIE3.0/USB2.0/SATA3.0/MSATA
onboard 1000M LAN chipset
1*PCI Express 3.0x16 slot
7*PCI Express x1 slots
diversity extension pattern

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Pete J
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#5471268 Posted on: 09/12/2017 08:40 AM

Disappointing. I wanted to run nine dual slot GPUs.

Clawedge
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#5471288 Posted on: 09/12/2017 10:23 AM

Ummmmm....yeah.

Ricepudding
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#5471306 Posted on: 09/12/2017 12:12 PM

X1 connections? the bottleneck would be real.... does AMD cards run on x1? i know they do on x4... Nvidia don't go below 8x on their new cards if i remember correctly ( correct me if im wrong)

Would mining even work on x1? that is so pretty low bandwidth

JamesSneed
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#5471333 Posted on: 09/12/2017 02:47 PM

Yeah x1 is fine for computations like mining.

A -mining we will go
A -mining we will go

Hi ho the derryo

A -mining we will go

schmidtbag
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#5471344 Posted on: 09/12/2017 03:24 PM

The only reason you'd want a board layout like this is if each slot offered more bandwidth, and, so you don't have to build some weird chassis. But since they're all x1 slots, why not just use one of the competing boards that support more slots? Correct me if I'm wrong, but I don't think this would fit in any full-tower chassis (to my recollection, full towers can "only" fit 5x dual-slot GPUs). That being said, if you can't fit this in a standard ATX chassis, why not just go for a competing miner's board?

I find it interesting how this board seems to be compatible with server PSUs, but the amount of power connectors seems woefully overkill. Cut out half of them and you'd still have way more than you'd ever need. But what I don't understand is if this doesn't use ATX PSUs and won't fit in an ATX case, why not just have a slot to mount a server PSU, rather than this complicated mess?

This whole board seems like an utter design failure, and it didn't have to be.

DeskStar
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#5471350 Posted on: 09/12/2017 03:32 PM

schmidtbag
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Joined: 2012-11-10

#5471355 Posted on: 09/12/2017 03:42 PM

WowO......, so the GFX cards get stuck with a x2 interface off of that crappy/garbage CPU??? Just wondering if I am seeing this shtuff right.....

They can not be serious with this many cards and this limitation on PCI-e lanes......
What do you mean by "that garbage CPU"? You do realize you can get good i7s on that socket, right? Anyway, for mining purposes, the specs are perfectly fine. As other have stated over and over, you only need PCIe x1 to do mining, and nobody does CPU mining, so something like a Pentium would likely be sufficient.

The Laughing Ma
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#5471361 Posted on: 09/12/2017 04:08 PM

A board for mining and they stuck 8 slots on it instead of 7, such a missed opportunity.

StewieTech
Chuck Norris

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#5471365 Posted on: 09/12/2017 04:36 PM

That looks hilarious! Oh well i guess there is a market for it.

nz3777
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#5471370 Posted on: 09/12/2017 04:48 PM

Dam you will need one Looooong chassis for that Monster!

vbetts
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#5471375 Posted on: 09/12/2017 05:03 PM

k3vst3r
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#5471437 Posted on: 09/12/2017 08:21 PM

Rubbish requires like 16x pci-e 6 pin connectors.

Elder III
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#5471519 Posted on: 09/13/2017 02:05 AM

I think it should run with only 8 pci-e 6 pin connectors, I'm not sure why they put so many on there. They are essentially replacing the need for risers, which at $8-12 each (if you buy in bulk) do add up to a decent bit of savings. It also reduces the amount of components to troubleshoot, and since the most likely culprit if you are having issues tends to be those risers that right there makes this worth considering. Provided it does actually work of course. :p

I saw a similar mobo yesterday that had an integrated mobile CPU with a laptop style heatsink/fan already installed and a 4Gb So-DIMM too, I think they claimed it was only $100 or so for the whole thing, bought direct in China.... I imagine pricing would be allot higher in the US or EU of course.

Elfa-X
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#5471709 Posted on: 09/13/2017 06:21 PM

Time for Doom 8k in Octofire!

Icanium
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#5471841 Posted on: 09/14/2017 03:02 AM

what size PSU would be needed to power this with 8 GPUs?

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