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Author Topic: PCI-E 1-to-7 extension card, anyone tried?  (Read 10446 times)
glitch003
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February 17, 2012, 01:06:13 AM
 #21

Amateurs. Here's an 18 pcie slot backplane  Shocked  http://www.trentontechnology.com/products/backplanes/picmg-13-backplanes/pci-express-backplane-bpx6806

No idea on price of it or the required system host board tho.
Mine only cost me $600.00... Dual LV Xeon SHB another $200... 8 GB RAM $30... 2360W server PSU $99...

How many GPU's in that system?

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rjk
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February 17, 2012, 01:14:08 AM
 #22

Amateurs. Here's an 18 pcie slot backplane  Shocked  http://www.trentontechnology.com/products/backplanes/picmg-13-backplanes/pci-express-backplane-bpx6806

No idea on price of it or the required system host board tho.
Mine only cost me $600.00... Dual LV Xeon SHB another $200... 8 GB RAM $30... 2360W server PSU $99...

How many GPU's in that system?
None yet. I need to figure out whether to:

a) Go single-slot air cooled
b) Go double-slot air cooled
c) Go single-slot water cooled

And of course that pesky 8 GPU driver limit Sad
Although I hear that VT-d may work, I have yet to try it myself. Luke-Jr has VT-d working on one of his boxes, but only with one card, and it keeps freezing or crashing every so often, last I heard.

This is a take-it-easy, slow kind of project for the weekends, since I am so busy right now Sad

Mining Rig Extraordinaire - the Trenton BPX6806 18-slot PCIe backplane [PICS] Dead project is dead, all hail the coming of the mighty ASIC!
grue
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February 17, 2012, 01:47:21 AM
 #23

more expensive than buying a full board; not worth it.

side note: eww, he uses deepbit Roll Eyes

It is pitch black. You are likely to be eaten by a grue.

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bulanula
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February 17, 2012, 10:39:49 AM
 #24

Amateurs. Here's an 18 pcie slot backplane  Shocked  http://www.trentontechnology.com/products/backplanes/picmg-13-backplanes/pci-express-backplane-bpx6806

No idea on price of it or the required system host board tho.
Mine only cost me $600.00... Dual LV Xeon SHB another $200... 8 GB RAM $30... 2360W server PSU $99...

How many GPU's in that system?
None yet. I need to figure out whether to:

a) Go single-slot air cooled
b) Go double-slot air cooled
c) Go single-slot water cooled

And of course that pesky 8 GPU driver limit Sad
Although I hear that VT-d may work, I have yet to try it myself. Luke-Jr has VT-d working on one of his boxes, but only with one card, and it keeps freezing or crashing every so often, last I heard.

This is a take-it-easy, slow kind of project for the weekends, since I am so busy right now Sad

No matter how it goes please do keep us posted. I am eagerly watching what people come up with this Chinese one and the HQ backplanes.

It is much cheaper getting 8*7970s than 4*7990s here in the UK etc. so I believe these boards do have a future. No need for powered extenders or racks now etc.
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February 17, 2012, 02:15:58 PM
 #25

What is total power requirements for a 7970 vs a 7990 though?

If you're searching these lines for a point, you've probably missed it.  There was never anything there in the first place.
DeathAndTaxes
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February 17, 2012, 02:23:38 PM
 #26

It is much cheaper getting 8*7970s than 4*7990s here in the UK etc. so I believe these boards do have a future. No need for powered extenders or racks now etc.

Huh How do you know price of 7990?
bulanula
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February 17, 2012, 02:26:08 PM
 #27

It is much cheaper getting 8*7970s than 4*7990s here in the UK etc. so I believe these boards do have a future. No need for powered extenders or racks now etc.

Huh How do you know price of 7990?

Inside information. Need I say more Grin ?

Here in the UK the 5970 still costs 400 GBP or about 633 USD while a 5870 can be had for about 180 GBP or about 284 USD so MUCH cheaper going that route rather than with dual GPU cards. Only in the US 2*5870 > 5970 in terms of price. Here it is 2*5870 < 5970 in terms of price.
Bigpiggy01
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February 18, 2012, 07:32:10 AM
 #28

I've ordered two of these from the taobao.com vendor and am going to try them out with 7x 5750s and 7x 5770s.

I'll post back here once I receive mine and have tried them out.

If anybody has any experience with virtd I'd be very interested in hearing about it as I'm going to try adding these to one of my other rigs long term.




Global BTC
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February 18, 2012, 12:41:05 PM
 #29

What's the original purpose of this kind of equipment? Folding? Cracking password hashes?

bulanula
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February 18, 2012, 02:56:17 PM
 #30

I've ordered two of these from the taobao.com vendor and am going to try them out with 7x 5750s and 7x 5770s.

I'll post back here once I receive mine and have tried them out.

If anybody has any experience with virtd I'd be very interested in hearing about it as I'm going to try adding these to one of my other rigs long term.





Yeah. It seems you cannot buy directly from taobao ( only if you are in China ).

Let us know how you get on. A review would be great. Thank you very much !
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February 18, 2012, 03:19:10 PM
 #31

Would someone be willing to purchase one for me, and send it to me?

If you're searching these lines for a point, you've probably missed it.  There was never anything there in the first place.
Global BTC
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February 19, 2012, 12:02:56 AM
 #32

There are services for shopping on Taobao from outside China.

bitlane
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February 19, 2012, 02:50:50 AM
 #33

Would someone be willing to purchase one for me, and send it to me?

BigPiggy has sent stuff from China to me in the past. I think he might be able to help you.

Any chance you might be able to share 'the wealth' as it were ?

I would LOVE to get my hands on 1 or 2 of those extenders.

bulanula
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February 19, 2012, 12:39:45 PM
 #34

Would someone be willing to purchase one for me, and send it to me?

BigPiggy has sent stuff from China to me in the past. I think he might be able to help you.

I see he sent you one of these extenders : https://bitcointalk.org/index.php?topic=64514

Did you get it ? Does it work ?

A little review with pictures would be epic.

Thank you !
Bigpiggy01
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February 19, 2012, 12:54:24 PM
 #35

If anybody is interested in getting one of these babies checkout https://bitcointalk.org/index.php?topic=64514.0

This is the best I can do as I will not ship junk and ruin my rep, but if some of you get together a substantial volume (5-10) I'm 100% certain that I can get some kind of discount out of them and get them to speed up shipping. Mine should have shipped to me this week but atm I'm still waiting Sad


Bigpiggy01
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February 19, 2012, 12:58:42 PM
 #36

Quote
I see he sent you one of these extenders : https://bitcointalk.org/index.php?topic=64514

Did you get it ? Does it work ?

A little review with pictures would be epic.

Thank you !

Clarification:

I have shipped extenders (the regular cables) to Goat. Not one of these splitter I'm still waiting for my own to arrive.

bulanula
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February 19, 2012, 01:07:34 PM
 #37

Quote
I see he sent you one of these extenders : https://bitcointalk.org/index.php?topic=64514

Did you get it ? Does it work ?

A little review with pictures would be epic.

Thank you !

Clarification:

I have shipped extenders (the regular cables) to Goat. Not one of these splitter I'm still waiting for my own to arrive.

OK. I think it would be great for you if you post some pictures and a proper review when you get your unit in.

If people see that this is working properly they will be more inclined to buy some from you Wink
Bigpiggy01
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February 19, 2012, 01:27:39 PM
 #38

Quote
OK. I think it would be great for you if you post some pictures and a proper review when you get your unit in.

If people see that this is working properly they will be more inclined to buy some from you Wink

I will be doing so asap. But I need the damn boards to arrive first.

aaa801
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March 02, 2012, 05:40:46 AM
 #39

Quote
OK. I think it would be great for you if you post some pictures and a proper review when you get your unit in.

If people see that this is working properly they will be more inclined to buy some from you Wink

I will be doing so asap. But I need the damn boards to arrive first.

any news?

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Bigpiggy01
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March 04, 2012, 05:17:08 PM
 #40

The batch I ordered in had issues with one or more of the components. So my new eta on hardware is the end of next week.

There'll be pics etc as soon as they land here  Grin

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