Bitworks 8 GPU 4U rack mount mining rig - 235Mh/s ETH

[D8V1D]

Look what I found. 8 GPU secret revealed!

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?

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.

[xxcsu]

You should try with ubuntu-16.04.1 or something similar

[padrino]

Look what I found. 8 GPU secret revealed!

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?

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.

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...

[isoneguy]

can you not just plug pci-e risers into a usb 3 hub?

[alh]

can you not just plug pci-e risers into a usb 3 hub?

While I am no PCIe riser expert, the fact that there is a USB cable in the picture doesn't mean that it's got USB protocol on it. I expect that the USB cable is strictly a cheap way to carry the PCIe signals on it to the other end. As a result a USB hub won't work in this application.

[allinvain]

Can you sell the case itself?

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

Would you sell a 6 or 7 GPU config system _without_ the PSU? I can get a bunch of cheap EVGA 1300 PSUs so I can save a bit of $ going with a lower power draw configuration. Ideally I'd like power draw at the wall to be 900 Watts roughly while dual mining.

[wlefever]

Can you sell the case itself?

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

Would you sell a 6 or 7 GPU config system _without_ the PSU? I can get a bunch of cheap EVGA 1300 PSUs so I can save a bit of $ going with a lower power draw configuration. Ideally I'd like power draw at the wall to be 900 Watts roughly while dual mining.

And I would love to host a few units with you. 

[allinvain]

Can you sell the case itself?

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

Would you sell a 6 or 7 GPU config system _without_ the PSU? I can get a bunch of cheap EVGA 1300 PSUs so I can save a bit of $ going with a lower power draw configuration. Ideally I'd like power draw at the wall to be 900 Watts roughly while dual mining.

And I would love to host a few units with you. 

Sure you can do that as we still have a bit of capacity left, but not much.

[padrino]

Can you sell the case itself?

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

Would you sell a 6 or 7 GPU config system _without_ the PSU? I can get a bunch of cheap EVGA 1300 PSUs so I can save a bit of $ going with a lower power draw configuration. Ideally I'd like power draw at the wall to be 900 Watts roughly while dual mining.

All of the 470/480 units use 1300 EVGA PSUs for exactly that reason, the efficiency cost really works well for them.. The pictures in the thread are from the tuned 380 units that didn't need the additional PSU overhead... I have a functional setup with server PSUs as well, helps me shave the component cost some more and lower unit cost some.. I haven't moved out on it yet due to supply chain unpredictability with the server PSUs but continuing to work it..

I can sell units with less GPUs but generally after people look at the numbers they end up back at 8 due to the cost per Mh..

[isoneguy]

can you not just plug pci-e risers into a usb 3 hub?

While I am no PCIe riser expert, the fact that there is a USB cable in the picture doesn't mean that it's got USB protocol on it. I expect that the USB cable is strictly a cheap way to carry the PCIe signals on it to the other end. As a result a USB hub won't work in this application.

Well, I did some shoddy math and pci-e 1x only uses 250M/s transfer speeds. usb 3.0 or 3.1 should be able to accommodate that...powering the gpu is done externally anyways?

internet research indicates that the REAL bottleneck is pci-e lanes on your cpu's chipset. not the amount of pcie slots on the motherboard.

I find it hard to believe that a usb 3.0/.1 riser card couldn't handle a gpu.

[padrino]

can you not just plug pci-e risers into a usb 3 hub?

While I am no PCIe riser expert, the fact that there is a USB cable in the picture doesn't mean that it's got USB protocol on it. I expect that the USB cable is strictly a cheap way to carry the PCIe signals on it to the other end. As a result a USB hub won't work in this application.

Well, I did some shoddy math and pci-e 1x only uses 250M/s transfer speeds. usb 3.0 or 3.1 should be able to accommodate that...powering the gpu is done externally anyways?

internet research indicates that the REAL bottleneck is pci-e lanes on your cpu's chipset. not the amount of pcie slots on the motherboard.

I find it hard to believe that a usb 3.0/.1 riser card couldn't handle a gpu.

That is correct, in the case of USB risers, its USB form factor only because its inexpensive to produce.. Its native PCIe 1x over the cable with the various required signaling pins mapped across the cable

[IzDen]

Can you sell the case itself?

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

Would you sell a 6 or 7 GPU config system _without_ the PSU? I can get a bunch of cheap EVGA 1300 PSUs so I can save a bit of $ going with a lower power draw configuration. Ideally I'd like power draw at the wall to be 900 Watts roughly while dual mining.

We are selling the case, pm me for details http://m.ebay.com/itm/Mining-frame-rig-eth-zcash-/282367936592?nav=SELLING_ACTIVE

[graymatter]

Hi, You say you made this case?

it looks oddly familiar.  How long did it take to paint?  or are you simply reselling them?

thanks!

Fitting 8 GPU using commodity components in a 4U chassis, of course there are similarities but if you want to get down to it there is a long list of differences.. I am quite aware of Gray Matter,
and they are quite aware of me as well, no ill will on either side, but thanks for asking..

No ill will confirmed.  Bitworks has a nice product and focuses on fully built out rigs while we like to keep it to just the cases.

[graymatter]

Hi, You say you made this case?

it looks oddly familiar.  How long did it take to paint?  or are you simply reselling them?

thanks!

Fitting 8 GPU using commodity components in a 4U chassis, of course there are similarities but if you want to get down to it there is a long list of differences.. I am quite aware of Gray Matter,
and they are quite aware of me as well, no ill will on either side, but thanks for asking..

We are selling the case, pm me for details http://m.ebay.com/itm/Mining-frame-rig-eth-zcash-/282367936592?nav=SELLING_ACTIVE

This guy though, what even is this?  Did he just gut a server case and try to resell it?

[takagari]

How does this work?
$3500 miner... calculator tell's me $1800 profit in a year if everything stays even... Who would possibly buy this?

[Gogreen]

How does this work?
$3500 miner... calculator tell's me $1800 profit in a year if everything stays even... Who would possibly buy this?

too expensive i rather go cloud mining with metizer cheap hashing power with free 100 gh/s

[takagari]

How does this work?
$3500 miner... calculator tell's me $1800 profit in a year if everything stays even... Who would possibly buy this?

too expensive i rather go cloud mining with metizer cheap hashing power with free 100 gh/s

Don't get me wrong I love the system
but for a near 2 year roi IF rates stay the same and difficulty... no idea how we could do that.
and seeing as I don't see great leaps in gpu's coming any time soon..

It is a very pretty system haha

[padrino]

How does this work?
$3500 miner... calculator tell's me $1800 profit in a year if everything stays even... Who would possibly buy this?

Obviously it depends on the situation, your power being a big play above and beyond cost.. with that said most buyers buy at least a handful at once, bringing the cost per unit down a few hundred.. Largest buyers have 100+ units each and keep adding to their holdings, obviously volume pricing much better...

[The Yorkshire Pudd]

Hi all, 

I just stumbed upon this product and I think it looks very interesting boasting some impressive hash rates. 

If we compare to another mining rig that has 4 x rx480s
http://r.ebay.com/cIARri
Pretend we bought 2 of those rigs (so 8 gpus total) doing just under 100 mh/s a rig each on eth then this Bitworks machine still out performs those 2 rigs by 15% with 230 mh/s on eth. 

I am new in the gpu market and wonder if this is achieved with a different gpu or if over clocking?  If overclocked what effect does that have on the power usage especially as the psu has 8 cards to power...
Do the fans on the cards have to be turned down to ensure everything runs smoothly?   
My main concern is the longevity of the machine if power is being taken away from cooling especially looking at how close those cards are compared to other rigs.  Also due to heat rising would it be wiser to put these units horizontal rather than vertical?

I am not trying to slate the product, in fact I hope the questions get answers to show me this isn't a "too good to be true" product because I am a buyer in the market looking to invest and I just don't want to get my hands burned on a product that may die after 6-12 months due to poor cooling / overheating cards. 

[yochdog]

Hi all, 

I just stumbed upon this product and I think it looks very interesting boasting some impressive hash rates. 

If we compare to another mining rig that has 4 x rx480s
http://r.ebay.com/cIARri
Pretend we bought 2 of those rigs (so 8 gpus total) doing just under 100 mh/s a rig each on eth then this Bitworks machine still out performs those 2 rigs by 15% with 230 mh/s on eth. 

I am new in the gpu market and wonder if this is achieved with a different gpu or if over clocking?  If overclocked what effect does that have on the power usage especially as the psu has 8 cards to power...
Do the fans on the cards have to be turned down to ensure everything runs smoothly?   
My main concern is the longevity of the machine if power is being taken away from cooling especially looking at how close those cards are compared to other rigs.  Also due to heat rising would it be wiser to put these units horizontal rather than vertical?

I am not trying to slate the product, in fact I hope the questions get answers to show me this isn't a "too good to be true" product because I am a buyer in the market looking to invest and I just don't want to get my hands burned on a product that may die after 6-12 months due to poor cooling / overheating cards. 

I own over 100 of these units, and can attest that heat is no issue whatsoever.