Topic: Bitworks 8 GPU 4U rack mount mining rig - 235Mh/s ETH - page 5. (Read 32706 times)

It's not a big secret, its funny how many different threads I see with people trying to uncover the mystery of what I did.. I've said a number of times it's the hardware, in short the correct M.2 card, the BIOS (which does need changes for 3XX and 4XX cards due to resource requirements), and a proper OS setup.... A variant of Windows 10 will work, or most recent versions of Linux provided the BIOS has been fixed...

You should try with ubuntu-16.04.1 or something similar

It doesn't work. Windows recognizes and installs the driver for the 8th GPU, but there's an exclamation point in device manager.
It says something about not enough resources. The 8th GPU wont be used.

Max I got to work with Windows 10 on MSI Z97 Gaming 5 is 7 GPUs.

I missed this question earlier in the thread, it comes up a lot, however not currently interested in selling just the case.

So what are you saying?
That if you get this: https://www.amazon.com/gp/product/B0182NRGYO/
Then you can get 8 GPU's to be operational in a configuration just like this one?

Wow, a lot of unnecessary heat on this thread.  Padrino is a stand up guy and I have done business with him multiple times without issue.  He sells quality goods.  If you want to talk about something worthwild I would suggest something useful and not Padrinos integrity.

I build a ton of rigs and 8 GPU rigs are not the easiest to assemble.  On a side note, I do not use 8 GPU rigs because of PSU limitations and choose 7 GPU rigs instead.  There are a number of advantages to doing 7 GPU rigs that are not available on 8 GPU rigs.

For starters there is the need for extra hardware like adapters on most 8 GPU rigs.  Secondly and more important to me is the power usage of the system.  I am doing 1600h/s mining Zcash at 900 watts and can bump that up to an easy 1750h/s using around 1050 watts.  Now switching to Dual Eth bumps up the wattage considerably and the PSU requirements.  This can be seen in BuckRodgers picture above where he is using god knows how much power to power 6 GPU's.  On my rigs I can easily manage Dual Mining with room to spare using a 1500 watt PSU and it is future proof.  Now if I add in an 8th GPU I am still WAY under the 1500 limit even Dual Mining and could approach 2000+ h/s mining zcash and Dual mining but it takes away my ability to possibly mine other coins that require large amounts of power.  I prefer to play it safe and stay with 1500 watt units and 7 GPU's and leave a 20% buffer on my PSU's.

The kicker is I write all my ROMS and unless you are good at writing ROM's then 8 large GPU's is not saving any cash because most people would need 2 PSU's unless they have custom ROM's.  I do not doubt that Padrino has that capability as it is obvious from using a small PSU on 8 380's that would not normally be using  1500 watts on stock settings.

Lastly-- the number of GPU's per rig is not as important as the $/hash or the hash/watt.

Look what I found. 8 GPU secret revealed!

Most likely using a M.2 to PCI-e adapter.
I checked, the MSI Gaming 5 motherboard's M.2 slot shares bandwidth between the SATA 5 & 6 slots.

https://www.amazon.com/gp/product/B0182NRGYO/

Bought one off amazon, I'll let ya'll know if it works.

Oregon Mines hosts loads of the BitFuel 8 GPU machines. If you aren't sure what the difference is between this and the Grey 6 GPU rig , PM us.

We know who makes both machines, we also make machines. We're aware that many people might know how to assemble the 8 GPU parts, but very few have the chops to keep them running. It's not your standard six, and yes, it's far harder than 8, especially while maintaining the integrated HDMI.

We've hosted these since 160 , now they are 230 , and even today we are opening new ones. If you reference this thread for hosting, I'll knock 10% off the list price per unit hosted.

- Happy Holidays from OregonMines

Not looking to get into a pissing match over how close or different they are, obviously dumping the same components on the table, and fitting them in a 4U case in the least cost model results in a similar layout, no way around that. This case has a different face plate (laser cut aluminum) to negate the use of fan grills with integrated rack ears, from the pictures different orientation of GPUs, one vs. two PSUs, different overall dimensions, this one is made specific to my hardware configuration and doesn't handle reference GPUs and other longer ones, no bottom plates used.

With respect to the request for pictures, I'm asking a couple of the hosts that handle a bunch to make posts so it's not all coming from me.

Away with family for Thanksgiving so I am not watching the forums as close as usual.. It's a combination of hardware, firmware, and software mods to make it all work... Took quite a bit of time to figure it all out and code up what was needed, that is part of the value proposition for the systems.

maybe? lol
maybe the OP can state , instead of speculation?

Thanks!

Maybe the OP has some special software.

thanks!

I've tried that multiplier, doesn't work. I plugged 6 GPUs and 1 multiplier.
The multiplier wouldn't recognize more that 1 GPU.

If I plug in 5 GPUs, the multiplier will recognize 2 GPUs.

No matter what I tried, total GPUs is still 7.

I would think with something like this from the original manufacturer:

http://www.miningrigs.net/?product=pci-e-port-multiplier

thanks!

I have the same motherboard, MSI Z97 Gaming 5.

Mind if I ask how you got 8 GPUs to work on a 7 PCI slot motherboard?

Thanks!

Can you sell the case itself?

Aren't these the Gray Matter cases?
http://www.miningrigs.net/?product=graymatter-gpu-server-case-v2-1

What changes have been made on yours to allow 8 GPUs to fit? You can do that with the Gray Matter cases as well with one shift of the rail.

Just wondering what's different.

seems new concept, case cloning instead of coin cloning if bucky is right

@padrino
can you reply to buckrogers, are you reselling this case and do you manufacture it by word meaning you have warehouse/storehouse full of them? Can you post a pic and location? You reffer to large farm operators, which, this cant be a secret.

ok , yea they have an 8 card model as well, just making sure that you note that.

what are your differences if i might ask?

thanks!