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201  Alternate cryptocurrencies / Mining (Altcoins) / Re: Octominer B8PLUS 8 PCIe Slot Mining Board (Motherboard, integrated CPU) on: January 25, 2018, 06:15:41 PM
At the moment we are considering NMB MAT 4710KL-04W-B56 or Delta AFB1212VH fans for the quieter version of the Octominer rig. I will get testing samples in a few days and post results here.
Currently I am running 0.45A  Ong Hua HA1225M12S-Z fans that are around 35dB in the test rig 4U case with 8X GTX 1060, mining Zcash with an overclock and undervolt, ambient temperature is 27 C and the GPU temperatures range from 58 to 63 C and it's pretty quiet. Previously I had Delta AFB1212SHE fans, they provided great airflow but were really loud, around 60dB, temps with the Deltas were in the 50-56C range.

If anybody has any other fan recommendations then I am listening  Smiley
202  Alternate cryptocurrencies / Mining (Altcoins) / Re: Octominer B8PLUS 8 PCIe Slot Mining Board (Motherboard, integrated CPU) on: January 25, 2018, 04:18:47 PM

Yes, not a problem.
203  Alternate cryptocurrencies / Mining (Altcoins) / Re: Octominer B8PLUS 8 PCIe Slot Mining Board (Motherboard, integrated CPU) on: January 25, 2018, 03:13:44 PM
I think comming from a price perspective of $199 is a really good price point considering you get mobo and cpu.

My only concern when it comes to mining is that the cards might not have enough airflow(ofc depending which cards you have).
So with PCI-E risers and cards hanging in the air, you don't actaully have anything that restricts the air from reaching your gfx cards, where as this board will restrict airflow going to your cards from one direction.
I have seen a review of this board on youtube and it looks promising comming from the price point.

I guess with the biostar BTC boards you can at least use it as a normal pc if you want to one day.


Yes, the combined price for a reliable and efficient mobo with CPU is very attractive.
Airflow problem can be solved by adding powerful fans to blow air on them or by putting the mobo and GPUs into our 4U rack chassis case that has 7X delta fans, 4 in the front to push cool air in and 3 in the back to pull the hot air out.  Also, if your cards have really thick coolers then it gets tricky, so this mobo works best with cards under 4CM thick.
204  Alternate cryptocurrencies / Mining (Altcoins) / Re: Octominer B8PLUS 8 PCIe Slot Mining Board (Motherboard, integrated CPU) on: January 25, 2018, 12:53:13 PM
Can you please explain why motherboard have 5x 6pin PCI adapters? Im read somewhere that only 2 are for mb power. What are other 3? I have plan running RX 580(Use 1x 8pin pcie power connector) on it and need to know if I need 10 6/8 pin connectors or 13 ...

Sure. The motherboard has 5 X 6pin connectors but with most GPUs only 2X 6PIN connectors need to be connected, the rest of the 6PIN connectors go directly to the GPUs from the PSU. You only need to connect all the 5 x 6PIN connectors to the motherboard when you are using cards like GTX 1050 or some other GPUs that don't have 6PIN power connectors on them and draw all the power from the motherboard.  So with a PSU that has 10 X 6PIN connectors, you can power the motherboard and all 8 GPUs.
Which two? Smiley

Actually any of the 2 6pin connectors is fine. We usually connect the first two.
205  Alternate cryptocurrencies / Mining (Altcoins) / Re: Octominer B8PLUS 8 PCIe Slot Mining Board (Motherboard, integrated CPU) on: January 25, 2018, 04:42:27 AM
We are getting ready to ship the new batch of boards soon. Still have some work left to get them all ready, but here's a short teaser of how the new cooler will look like.
https://youtu.be/kYjsKjW2G2s

Keep those fingers out of the way!  Grin
Hahaha, I was going to point out the same. I work in a very safety-conscious environment and I went WTF!

Not my fingers.  Grin Grin
206  Alternate cryptocurrencies / Mining (Altcoins) / Re: Octominer B8PLUS 8 PCIe Slot Mining Board (Motherboard, integrated CPU) on: January 25, 2018, 01:58:50 AM
Can you please explain why motherboard have 5x 6pin PCI adapters? Im read somewhere that only 2 are for mb power. What are other 3? I have plan running RX 580(Use 1x 8pin pcie power connector) on it and need to know if I need 10 6/8 pin connectors or 13 ...

Sure. The motherboard has 5 X 6pin connectors but with most GPUs only 2X 6PIN connectors need to be connected, the rest of the 6PIN connectors go directly to the GPUs from the PSU. You only need to connect all the 5 x 6PIN connectors to the motherboard when you are using cards like GTX 1050 or some other GPUs that don't have 6PIN power connectors on them and draw all the power from the motherboard.  So with a PSU that has 10 X 6PIN connectors, you can power the motherboard and all 8 GPUs.
207  Alternate cryptocurrencies / Mining (Altcoins) / Re: Octominer B8PLUS 8 PCIe Slot Mining Board (Motherboard, integrated CPU) on: January 24, 2018, 04:29:52 PM
We are getting ready to ship the new batch of boards soon. Still have some work left to get them all ready, but here's a short teaser of how the new cooler will look like.
https://youtu.be/kYjsKjW2G2s
208  Alternate cryptocurrencies / Mining (Altcoins) / Re: Octominer B8PLUS 8 PCIe Slot Mining Board (Motherboard, integrated CPU) on: January 24, 2018, 02:51:18 PM
One question. How is SSD/HDD powered? Does motherboard have some SATA power output connector(Is cable included)?

Yes, the motherboard has a Sata connector and also a power connector for sata drives. We will include it. Smiley
Ha! I told you this question was coming! I'm glad to hear the cable will be there. I may still need to fabricate some adapter for the case fans from the server PSU though.

Good news! We will include the adapter Smiley. 6 pin to 2x molex connector will be included and you can connect the fans with that.
209  Alternate cryptocurrencies / Mining (Altcoins) / Re: Octominer B8PLUS 8 PCIe Slot Mining Board (Motherboard, integrated CPU) on: January 24, 2018, 08:13:04 AM
One question. How is SSD/HDD powered? Does motherboard have some SATA power output connector(Is cable included)?

Yes, the motherboard has a Sata connector and also a power connector for sata drives. We will include it. Smiley
210  Alternate cryptocurrencies / Mining (Altcoins) / Re: Octominer B8PLUS 8 PCIe Slot Mining Board (Motherboard, integrated CPU) on: January 24, 2018, 04:47:15 AM
What key to get into the BIOS and any settings that should be changed?

ESC or F12 to enter bios. The only setting you might need to change is the boot device, depending on if you want to boot Linux from USB or Windows from SSD. Otherwise everything is set up and it's plug and play.
211  Alternate cryptocurrencies / Mining (Altcoins) / Re: best motherboard for mining with less problems need your experience on: January 24, 2018, 03:50:41 AM
iam planing soon to put 6 or 7 card so

i know we search for more slots pcie x16 and x1  as we can but it Connecting all this cards is do a problems in Connecting and hashrate


so can you advies me with best motherbord based in you
experience

MSI Z270 Gaming Plus

MSI Z270-A Pro

Asus Prime Z270-A

 Asrock H81 pro btc R2



i hope to get something cheap and done the jop

Octominer B8PLUS
https://octominer.com/product/octominer_b8plus/

Riser free motherboard with built in intel mobile 3855u CPU. Very stable and solid board, no more need to mess with risesrs or buy extra CPU. Just plug 8 GPU directly onto the motherboard.  Smiley
212  Alternate cryptocurrencies / Mining (Altcoins) / Re: A $30,000 GPU mining farm. on: January 23, 2018, 08:56:40 PM
Hi folks and friends from BCT!

I'm here asking for advice once again, as we're planning to make a $30,000 usd investment in GPU mining:

10 rigs using:

Comp:ModelPriceFinal price
GPU:Msi Armor Radeon 580 8gb$384(x6!)$2,304
MB:Msi Z270-A Pro$152$152
Micro:Celeron G3930$36$36
RAM:Corsair VS DDR4 4GB$73$73
PSU:NZXT Hale90 or alike$136$136
Final price:$2,701

The prices have been converted to USD so it might change a little bit, and yes, in my country the taxes aren't the best ever.
Like I mentioned, we're planning to buy 10 units like this mostly for Ethereum mining, so I would really appreciate your advice before proceeding with the order.

I have been wondering how long it might take before ETH goes PoS, and assuming it does, there should be a few other coins that are worth for GPU mining, right?

What are your thoughts? Is there any better investment that I might not be considering? Or any missing risk?

Kind regards;
Chris C. Russo

One option is to use the Octominer B8PLUS, https://octominer.com/product/octominer_b8plus/
New batch of boards will be in stock in less than 2 weeks. The advantage is that this board comes with 8 full size PCIe slots, no need for risers like the MSI board has. Also the octominer board has built in Intel Mobile 3855u CPU , which makes it very energy efficient.
213  Alternate cryptocurrencies / Mining (Altcoins) / Re: Octominer B8PLUS 8 PCIe Slot Mining Board (Motherboard, integrated CPU) on: January 23, 2018, 08:41:34 PM
So what would this rig have to offer in layman's terms? what graphics cards and what would you be able to mine? ether? and would it be profitable to build and use. Sorry, i'm new to all of this and i'm trying to gather info on mining and determine a sort of entry plan. This design looks a bit different but also more upscale than most of the boards that i have seen.

This board will make your life easier when mining. Instead of using risers that have multiple cables and failing points, this board has full 8 full size PCIe 16X slots and does not need risers. Also it has a built in intel Mobile 3855u processor that is very energy efficient. So with this motherboard you will have a more reliable and efficient mining rig.
214  Alternate cryptocurrencies / Mining (Altcoins) / Re: Mining motherboard - Onda B250 BTC-D8P - Anyone tried ? on: January 23, 2018, 08:34:24 PM
Are there any trustworthy sources for that mainboard that have a lower min. order quantity? I never ordered at alibaba, can you negotiate with the sellers about quantity?

Another alternative is the Octominer B8PLUS board that has 8 full size PCIe slots and an integrated Intel Mobile 3855u CPU.
https://bitcointalk.org/index.php?topic=2754227.0
215  Alternate cryptocurrencies / Mining (Altcoins) / Re: Octominer B8PLUS 8 PCIe Slot Mining Board (Motherboard, integrated CPU) on: January 23, 2018, 05:16:40 PM
Thanks for the detailed input about the Delta fans, Phil. I really appreciate it.
I will get some of the quieter Delta  AFB1212HHE-F00 to test them out.

I looked at your new fan photos  all are 1.05 amps to 1.4 amps

that is quite a bit lower  power then  the ones now 1.8 amps

Hopefully they do the job.

1.05 x 12 = 12.6 watts x 8 = 100.8 watts

the one now is

1.8 x 12 = 21.6 watts x 8 = 172.8 watts

this  comes to almost extra 2 kwatts a day per rig

so 60kwatts a month for 1 rig
and 600kwatts a month for 10 rigs.

Thanks for the calculations. Yes, I will have to do testing with the lower power fans and see what kind of temperatures they sustain compared to the higher power Delta fans.
216  Alternate cryptocurrencies / Mining (Altcoins) / Re: Octominer B8PLUS 8 PCIe Slot Mining Board (Motherboard, integrated CPU) on: January 23, 2018, 03:33:05 PM
Here are some photos of the cooling fans that we are testing right now. We will post some results soon. For the quieter version of the 4U chassis we are trying to find the optimal fans. Something that is not as loud as Delta fans going at full speed and that still provides sufficient airflow.


217  Alternate cryptocurrencies / Mining (Altcoins) / Re: Octominer B8PLUS 8 PCIe Slot Mining Board (Motherboard, integrated CPU) on: January 23, 2018, 12:22:04 PM
Do you have the measurements of the board please?


Yes, the board dimensions are 46 X 18CM.
218  Alternate cryptocurrencies / Mining (Altcoins) / Re: Octominer B8PLUS 8 PCIe Slot Mining Board (Motherboard, integrated CPU) on: January 23, 2018, 10:49:02 AM
I am interested in this motherboard for building my 1080ti rig. Already got 5 cards coming from amazon. This would be perfect

Yep, I think it will be a good fit. Just make sure you got some high power fans to blow on those 1080ti's or get our 4U rack chassis that comes with high Power Delta fans. Also, recommended card thickness is 4CM or less!
219  Alternate cryptocurrencies / Mining (Altcoins) / Re: Octominer B8PLUS 8 PCIe Slot Mining Board (Motherboard, integrated CPU) on: January 23, 2018, 04:52:31 AM
Right now the case is running Delta AFB1212SHE fans, they are powerful but loud.
220  Alternate cryptocurrencies / Mining (Altcoins) / Re: Octominer B8PLUS 8 PCIe Slot Mining Board (Motherboard, integrated CPU) on: January 23, 2018, 01:59:58 AM
Thanks for the detailed input about the Delta fans, Phil. I really appreciate it.
I will get some of the quieter Delta  AFB1212HHE-F00 to test them out.
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