Rig stats and pics
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I’d like to ask anyone who owns a rig, where did you get your design from and where do you source your parts?
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[quote name=“Kevlar” post=“8985” timestamp=“1370235406”]
I’d like to ask anyone who owns a rig, where did you get your design from and where do you source your parts?
[/quote]I’m going to build myself a few crate rigs like the ones in the link below. I just need to find some suitable crates or racks. If anyone has a suggestion for a decent DIY rack for custom system please let us know.
http://www.coinminingrigs.com/
I get my parts from ebay, Dabs, CCL or Scan. I’m in the UK.
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Instead of purchasing four cards like HD7950, using PCIe extenders for all of them and designing some custom mounting, you can get any used Extended ATX case or 4U 19" rack for cheap. Set up two dual GPU cards like HD7990/HD6990/HD5970 inside, the additional cards may be added through extenders if necessary. This way saves a lot of time.
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[quote name=“Bushstar” post=“9007” timestamp=“1370251307”]
[quote author=Kevlar link=topic=264.msg8985#msg8985 date=1370235406]
I’d like to ask anyone who owns a rig, where did you get your design from and where do you source your parts?
[/quote]I’m going to build myself a few crate rigs like the ones in the link below. I just need to find some suitable crates or racks. If anyone has a suggestion for a decent DIY rack for custom system please let us know.
http://www.coinminingrigs.com/
I get my parts from ebay, Dabs, CCL or Scan. I’m in the UK.
[/quote]I couldn’t find crates in the UK hence why i went for my openair design. Cheap as chips and ALL part are available from B&Q. I think i’m gonna post build instructions along with where to source parts… watch this space…
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Let me know what you use from B&Q. I can trek over there to get some parts.
Ever used a PCI-e splitter?
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[quote name=“Bushstar” post=“9069” timestamp=“1370273334”]
Ever used a PCI-e splitter?http://www.amfeltec.com/products/x4pcie-splitter4.php
[/quote]Wow, I didn’t even know they made those… has some real potential for rig design.
TN
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[quote name=“Bushstar” post=“9069” timestamp=“1370273334”]
Let me know what you use from B&Q. I can trek over there to get some parts.Ever used a PCI-e splitter?
http://www.amfeltec.com/products/x4pcie-splitter4.php
[/quote]
I have been thinking about using one. They cost about 180 bucks a piece. The only thing they do is allow you to have more cards on one board. But for that price you can get a new board, RAM and CPU combo. Another limiter seems to be the drivers, they are said to be only allowing 8 cards at max, but I have yet to see that. I got a bit stumped on my 7 card setup, without a splitter. If I get more cards I might just give it a try and see what those splitters can do.As a precaution though, they are meant for true x1 cards. They have tabs that hinder you plugging in 16x cards even if you cut away the back of the socket. So you would need a riser on top of it in some form.
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[quote name=“Bushstar” post=“9069” timestamp=“1370273334”]
Let me know what you use from B&Q. I can trek over there to get some parts.Ever used a PCI-e splitter?
http://www.amfeltec.com/products/x4pcie-splitter4.php
[/quote]
Never used a splitter for mining but i see no issues with them. Would rather plug straight into the mobo though (via a passive 1x - 16x riser). looking at that splitter you will need to cut the end of the socket off so you can seat the card. Most mobo’s can support 4 cards and 2* 4 card rigs will be easier to build/manage than 1* 8 card rig.as for B&Q… gimme a few mins and i’ll compile a parts list
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[quote name=“Bushstar” post=“9069” timestamp=“1370273334”]
Let me know what you use from B&Q. I can trek over there to get some parts.
[/quote]Aluminium Tubing (cut in half for the card mounting rails)
http://www.diy.com/nav/fix/hardware/ironmongery/tubing___metal_rods/-specificproducttype-square_tube/FFA-Concept-Raw-Aluminium-Square-Tube-L-1000mm-x-W-16mm-x-T-1-5mm-9284089?skuId=9293789MDF 12mm (Cut into 3 - makes 3 rigs)
http://www.diy.com/nav/build/timber/sheet-materials/mdf/length_1220mm/MDF-Board-L-1220-x-W-607-x-T-12mm-9276419?skuId=9286119Timber Upstands (cut into 2x 200mm and 2x 110mm)
http://www.diy.com/nav/build/timber/sawn-timber/Sawn-Kiln-Dried-Timber-L-2400-x-W-38-x-T-19mm-9275841Screws (video card to tubing)
http://www.diy.com/nav/fix/hardware/screws/self_tapping_screws/-specificproducttype-crosshead_drive_recess/Self-Tapping-Screw-AVF-860119-Pack-Of-25-W-3-5mm-x-L-12mm-9708735?skuId=10079472Screws (Mobo to MDF) Check these as I’m not sure if they are the right ones. Basically they need go through the mobo holes, through the standoff and into the mdf.
http://www.diy.com/nav/fix/hardware/screws/interior_wood_screws/-specificproducttype-slotted_drive_recess/Woodscrew-AVF-861512-Pack-Of-25-W-5mm-x-L-25mm-9708875?skuId=10079612Screws (upstands to MDF and rails to upstands)
http://www.diy.com/nav/fix/hardware/screws/interior_wood_screws/-specificproducttype-pozidriv_drive_recess/-lengthmm>50/Multi-Purpose-Single-Thread-Screw-AVF-854880-Pack-Of-25-W-4mm-x-L-50mm-9708302Raid Argos for a couple of pens (or any biro really) and cut them in to 10mm lengths and they make your mobo stand offs.
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Here’s a closer image of how to assemble that lot. A bit “Mad Max” i know but it’s cheap and quick.
[URL=http://imageshack.us/photo/my-images/7/p1000305fv.jpg/][IMG]http://img7.imageshack.us/img7/4227/p1000305fv.jpg[/img][/URL]
[URL=http://imageshack.us/photo/my-images/515/p1000307s.jpg/][IMG]http://img515.imageshack.us/img515/6209/p1000307s.jpg[/img][/URL]
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That’s a nice setup you have there! ;D
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Yep, that’s quite a setup indeed…
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[quote name=“Nutnut” post=“9096” timestamp=“1370279414”]
Here’s a closer image of how to assemble that lot. A bit “Mad Max” i know but it’s cheap and quick.[/quote]
Hi NutNut, I notice from these pics that you do not appear to be running powered risers… I read in another thread here on the forum (sorry I don’t recall which) that despite the fact that the cards are all powered by the 6-pin PCIE cables from the power supply, they still draw a significant amount of power from the motherboard through the slots. In the post I am referring to, the OP warned against running (3 or more?) cards without powered risers as it risked drawing too much power through the motherboards main power cable - he posted a pic showing a blown pin - and ruining you mainboard. Have you ever encountered any problems?
I have a bunch of new equipment on the way, including powered risers, but I am nevertheless curious if they are required.
TN
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Good question. I added powered risers to err on the side of caution.
Also what power supplies are you running nutnut? I have a 1250w and added a sync’d 800watt b/c my four Gigabyte 7950s were pulling more than 1250 watts. :P
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Ahhh yes, the myth that is powered risers… All i can say is that i have 20* 7970s (5 rigs, 4 boards each) and NEVER had an issue. My risers never caught on fire, I’ve never burnt a pin out of the 24pin connector and I’ve never blown the tracks on my motherboards.
[quote name=“zythen” post=“9115” timestamp=“1370287104”]
I have a 1250w and added a sync’d 800watt b/c my four Gigabyte 7950s were pulling more than 1250 watts. :P
[/quote]i use either Seasonic x1250 or, against better judgement, the Corsair AX1200. If you measured you power at the wall then that explains it. A [b][i]good[/i][/b] power supply will deliver it’s stated power to the components. The issue is that power supplies are NOT 100% efficient therefor a 1200w supply may pull 1320+ watts from the wall (based on ~90% efficency). In short, if your supply doesn’t trip and your rig seems stable, don’t worry too much about it. I have 1000s of hours on my psus and all is well so far. Good PSUs have a fair amount of headroom built in - just keep 'em cool and they’ll be fine.
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[quote name=“Nutnut” post=“9145” timestamp=“1370295092”]
Ahhh yes, the myth that is powered risers… All i can say is that i have 20* 7970s (5 rigs, 4 boards each) and NEVER had an issue. My risers never caught on fire, I’ve never burnt a pin out of the 24pin connector and I’ve never blown the tracks on my motherboards.[quote author=zythen link=topic=264.msg9115#msg9115 date=1370287104]
I have a 1250w and added a sync’d 800watt b/c my four Gigabyte 7950s were pulling more than 1250 watts. :P
[/quote]i use either Seasonic x1250 or, against better judgement, the Corsair AX1200. If you measured you power at the wall then that explains it. A [b][i]good[/i][/b] power supply will deliver it’s stated power to the components. The issue is that power supplies are NOT 100% efficient therefor a 1200w supply may pull 1320+ watts from the wall (based on ~90% efficency). In short, if your supply doesn’t trip and your rig seems stable, don’t worry too much about it. I have 1000s of hours on my psus and all is well so far. Good PSUs have a fair amount of headroom built in - just keep 'em cool and they’ll be fine.
[/quote]Very satisfied with my seasonic 1250’s, but if you want 5-6 card in one rig im really loving the enermax revo 1500w, driven 3x7970 1x6970 2x7850 on a eig no problem. Doesnt even get remotely hot
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Thanks Nutnut. That’s good information to know. I guess I’ll stop wasting money on the powered risers.
I’m running 4 7950s w/ a Seasonic 1250w and a Corsair 800w at the moment and I think w/ my MB I can run a 5th.
Before I really go much larger scale I need to work on a) additional cooling in the room b) power (I guess I’ll run a couple 20amp circuits).
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[quote name=“zythen” post=“9153” timestamp=“1370296626”]
Thanks Nutnut. That’s good information to know. I guess I’ll stop wasting money on the powered risers.I’m running 4 7950s w/ a Seasonic 1250w and a Corsair 800w at the moment and I think w/ my MB I can run a 5th.
Before I really go much larger scale I need to work on a) additional cooling in the room b) power (I guess I’ll run a couple 20amp circuits).
[/quote]
If your running windoze you may struggle. I’ve heard many people have issues. Much simpler to have multiple 4x rigs running IMHO. -
I’m currently running Xubuntu headless :)
I tried w/ a USB stick first but it was just way to slow so I dropped in a solidstate 32Gb drive I had laying around.
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[quote name=“Nutnut” post=“9145” timestamp=“1370295092”]
Ahhh yes, the myth that is powered risers… All i can say is that i have 20* 7970s (5 rigs, 4 boards each) and NEVER had an issue. My risers never caught on fire, I’ve never burnt a pin out of the 24pin connector and I’ve never blown the tracks on my motherboards.
[/quote]Thanks, appreciate the response. I wonder too if if could have something to do with the quality of the motherboard and psu. I’ve burnt a PCIE to Molex pigtail adapter once - when I looked at it afterward I discovered it used 18 gauge wire while the others had 16 gauge.
TN
