scifimike12
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March 14, 2013, 04:49:47 PM |
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what is "activate 1x" hotplug bridge?
Some boards won't detect the VGA unless you short the slot as such: ![](https://ip.bitcointalk.org/?u=http%3A%2F%2Fblog.zorinaq.com%2Fimages%2Fpcie-short-schematic.png&t=665&c=jJfuPmwFZZumIw)
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m3whiteknight
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March 14, 2013, 05:46:42 PM |
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After some work, heres how it looks ![](https://ip.bitcointalk.org/?u=https%3A%2F%2Fi.imgur.com%2FAQIAxOZ.jpg&t=665&c=zqIIG4Tpq6ODcA) Could you please tell me which motherboard you use with 7970. I also see so many version of 7970 card, which one that you use? Many THanks
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mig91
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March 14, 2013, 07:48:37 PM |
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looks like a windforce and HIS 7970s. am i right ?
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MangoJ
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BTCRaven.com Escrow & Advertising
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March 14, 2013, 08:39:36 PM |
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One of my block crates... http://www.youtube.com/watch?v=wrJVzvJO7EE![](https://ip.bitcointalk.org/?u=http%3A%2F%2Fzuunk.com%2Fm%2Fphotos%2Fget_image%2Ffile%2F4883e6ee23b0b3f752edc81464553f6a.jpg&t=665&c=8dc9tCFF0obY6Q) six 5870s two PSUs hard drive removed, running on 16GB USB flash* 4GB Ram DDR3 (going to downgrade to 2GB RAM so I can put all this extra ram in my personal server)* $18.50 AM3 CPU* * Because I am all about building cheap.
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Automated Escrow For instant BTC transactions without waiting for a 3rd party. : http://BTCRaven.com
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king_pin
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![](https://bitcointalk.org/Themes/custom1/images/post/xx.gif) |
March 14, 2013, 10:12:43 PM |
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home made risers with "activate 1x" hotplug bridge, and additional power molex ![](https://ip.bitcointalk.org/?u=http%3A%2F%2Fs23.postimage.org%2Fe0as0cf6v%2Fimage.jpg&t=665&c=UGNwIG6iL2vEdw) DO NOT DO THAT!You are giving those 12 volts back to the MB if you don't cut the wires! You should cut the 5 power wires from the flat cable first, than solder additional power. And if you are wondering here you will see which five lines you need to cut, than solder 12v to them: http://en.wikipedia.org/wiki/PCI_Express#Pinoutdual old p4 coolers to mach gpu0 and gpu1 temps ![](https://ip.bitcointalk.org/?u=http%3A%2F%2Fs23.postimage.org%2Fnamw3vpwn%2Fimage.jpg&t=665&c=bSNjdTYUNImUiw) This is the stupidest thing I've seen! ![Grin](https://bitcointalk.org/Smileys/default/grin.gif) At least put them to the right where the VRMs are. I can't see if you are using thermal paste but if u aren't, put lots of paste cause the surface is not perfect, and put them on the back of the VRMs, hopefully you will see a drop in the Phase Temperatures.
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ssateneth
Legendary
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March 15, 2013, 12:36:47 AM |
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home made risers with "activate 1x" hotplug bridge, and additional power molex ![](https://ip.bitcointalk.org/?u=http%3A%2F%2Fs23.postimage.org%2Fe0as0cf6v%2Fimage.jpg&t=665&c=UGNwIG6iL2vEdw) what is "activate 1x" hotplug bridge? and is there anywhere a technical sketch how to add an additional power molex (because for me one card has broken without additional power molex) TIA i would like some 1x > 1x risers with the PCI-E presence mod please. I don't need the molex mod. i can provide risers.
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vdragon
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March 15, 2013, 12:56:58 AM |
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After some work, heres how it looks
Could you please tell me which motherboard you use with 7970. I also see so many version of 7970 card, which one that you use? Many THanks I use Club3D and Powercolor with reference design 7970s, and Windforce 7950s (Gigabyte) . Motherboards I have mixed, Gigabyte B75-D3V with Intel G530 and G550, and MSI A75 motherboards with AMD A4 (something) cpu ![Cheesy](https://bitcointalk.org/Smileys/default/cheesy.gif) But I also use MSI 7950s (twinfrozr), Gigabyte 7970s (WF3), even have some Sapphire Flex 7950 cards
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king_pin
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![](https://bitcointalk.org/Themes/custom1/images/post/xx.gif) |
March 15, 2013, 01:15:42 AM |
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i would like some 1x > 1x risers with the PCI-E presence mod please. I don't need the molex mod. i can provide risers.
Come on dude, look on the before page, don't be so lazy ![Tongue](https://bitcointalk.org/Smileys/default/tongue.gif)
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malevolent
can into space
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March 15, 2013, 02:40:18 AM |
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dual old p4 coolers to mach gpu0 and gpu1 temps ![](https://ip.bitcointalk.org/?u=http%3A%2F%2Fs23.postimage.org%2Fnamw3vpwn%2Fimage.jpg&t=665&c=bSNjdTYUNImUiw) This is the stupidest thing I've seen! ![Grin](https://bitcointalk.org/Smileys/default/grin.gif) At least put them to the right where the VRMs are. I can't see if you are using thermal paste but if u aren't, put lots of paste cause the surface is not perfect, and put them on the back of the VRMs, hopefully you will see a drop in the Phase Temperatures. Pending an RMA, and limited in my abilities to properly fix it by warranty seals on the screws that hold the cooler, I decided to keep my dead-fan 5870 mining until I get an RMA number: ![](https://ip.bitcointalk.org/?u=http%3A%2F%2Fs15.postimage.org%2Fq1m4sbpyj%2FSDC10727.jpg&t=665&c=3ExMwpxePagkXQ) ![Cheesy](https://bitcointalk.org/Smileys/default/cheesy.gif)
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Signature space available for rent.
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gektek
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I rave ... whats your excuse?!?
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March 15, 2013, 04:06:27 AM |
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![](https://ip.bitcointalk.org/?u=http%3A%2F%2Fgektek.info%2Fimages%2Frig.jpg&t=665&c=aQ9OjAgzWe_Q3Q) It ain't pretty but it earns me right around $2 per day. The power supply is on top cuz I'm too lazy to take the one out that came with the desktop...and for air flow...ya, we'll go with air flow. The 5830 on the outside there is the main earner whilst the 7750 inside does a descent job...and runs my games. I also LTC mine with the FX-6100 cpu which is why there is the little grey fan in the front. Even with the open case it gets warm in there so it helps push the air around a bit. Hoping to add another 5970 to the mix to continue to be profitable with the rise in LTC prices ![Wink](https://bitcointalk.org/Smileys/default/wink.gif) Posting this mostly to encourage the amateurs out there. I don't make much with this setup but it paid for Christmas presents last year and continues to pay for my MineCraft server, my Mumble server, my website hosting package, my Rift subscription AND a few gallons of gas here and there. It's literally free money people...get your rig turned on and mine that bad boy!!! ![Tongue](https://bitcointalk.org/Smileys/default/tongue.gif) Scared to ask questions here? Still a noob and can't post? Ask me your questions...I don't know everything but I certainly don't mind helping where I can ![Wink](https://bitcointalk.org/Smileys/default/wink.gif) - gecko@gektek.info
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crazyates
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March 15, 2013, 04:51:56 AM |
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Holy Shit! It's posts like this that make me sad that GPU mining will eventually disappear.
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vdragon
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March 15, 2013, 03:49:30 PM |
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Yup, it really brought out the creativity in people
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BBQKorv
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March 15, 2013, 05:43:34 PM |
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Holy Shit! It's posts like this that make me sad that GPU mining will eventually disappear. I also like very much of these homemade rigs, specially the ones that do have a proper construction and not just plenty of zipties and hotmelt-glue. Luckily GPUs will stay on mining on the scrypt side after ASICs dominate sha256 side, it will be interesting to see if BTC/TRC/PPC value increases even more and thus allows GPUs to stay longer on that side too.
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atomium
Donator
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Study the past, if you would divine the future.
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March 15, 2013, 06:01:35 PM |
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these rigs are so badass, awesome job
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kpriess
Sr. Member
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Money is the root of all evil.
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March 15, 2013, 10:13:24 PM |
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Worry not, GPU mining will prevail after SHA256 is ditched when ASIC becomes mainstream..
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xorxor
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![](https://bitcointalk.org/Themes/custom1/images/post/xx.gif) |
March 16, 2013, 01:21:42 AM Last edit: March 16, 2013, 03:18:07 AM by xorxor |
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home made risers with "activate 1x" hotplug bridge, and additional power molex ![](https://ip.bitcointalk.org/?u=http%3A%2F%2Fs23.postimage.org%2Fe0as0cf6v%2Fimage.jpg&t=665&c=UGNwIG6iL2vEdw) DO NOT DO THAT!You are giving those 12 volts back to the MB if you don't cut the wires! You should cut the 5 power wires from the flat cable first, than solder additional power. And if you are wondering here you will see which five lines you need to cut, than solder 12v to them: http://en.wikipedia.org/wiki/PCI_Express#Pinoutdual old p4 coolers to mach gpu0 and gpu1 temps ![](https://ip.bitcointalk.org/?u=http%3A%2F%2Fs23.postimage.org%2Fnamw3vpwn%2Fimage.jpg&t=665&c=bSNjdTYUNImUiw) This is the stupidest thing I've seen! ![Grin](https://bitcointalk.org/Smileys/default/grin.gif) At least put them to the right where the VRMs are. I can't see if you are using thermal paste but if u aren't, put lots of paste cause the surface is not perfect, and put them on the back of the VRMs, hopefully you will see a drop in the Phase Temperatures. you dont post here if u dont know s**t! it is ultra-super-good to sent 12v back to mobo, check pictures of burnt 12v pins @ 24pin atx when using many cards. this is a big issue for miners. there are even special thingies like this: check the video:http://www.youtube.com/watch?v=N9SLjiR7Q4sto not make your mobo look like that [googled, not mine]: https://bitcointalk.org/index.php?topic=53904.msg642672#msg642672also your "stupidest thing" made my temps from 81/72/80/71 to 72/69/71/69 for free [got a lot of theese] and zero work [2 min?]. there is some thermal paste of course. i have some radiators on the VRM's on other rigs, these two cards have nice vrm temps and are not hot over there ![](https://ip.bitcointalk.org/?u=http%3A%2F%2Fs17.postimage.org%2Frm4xhajq7%2Fimage.jpg%5Dhttp%3A%2F%2Fs17.postimage.org%2Frm4xhajq7%2Fimage.jpg&t=665&c=D5Jc30_T-FGzEQ) do not teach your father how to make kids, don't try to teach grandma how to suck eggs i can see your homemade cables are much better : https://bitcointalk.org/index.php?topic=7216.msg1520593#msg1520593
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fuck deeponion, fuck bitcoincash, all glory to one BITCOIN
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philips
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March 16, 2013, 01:56:12 AM Last edit: March 16, 2013, 02:14:54 AM by philips |
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.......................................
Interesting. So, from what I see you replicated that power boost cable four times and feed power to PCI-E bus. But why four? Wasn´t only one enough? I wonder also, is it vital to provide also the ground connection? All the powered riser I´ve seen are only using one wire (12V).
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xorxor
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![](https://bitcointalk.org/Themes/custom1/images/post/xx.gif) |
March 16, 2013, 02:47:15 AM Last edit: March 16, 2013, 03:22:36 AM by xorxor |
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.......................................
Interesting. So, from what I see you replicated that power boost cable four times and feed power to PCI-E bus. But why four? Wasn´t only one enough? I wonder also, is it vital to provide also the ground connection? All the powered riser I´ve seen are only using one wire (12V). ill quote myself: one of my 7 rig's , 1500kh :
i made more that 4 of that.not all for one rig lolz. I have >>7<< rigs. some rigs do not need it, some are better with two of them like this one from photos: super old single core only asus mobo with pcie 1.0 and two dualcore 5970 eating some serious amps from slots. no , ground is not crucial. since its shorted to pcie 6-pin grounds, current can go back that way. so you won't burn pci-e slot , and there is a s**tload of grounds at 24pin atx, so you won't se that burnt either . but its safer and helps a little to have it anyway.
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fuck deeponion, fuck bitcoincash, all glory to one BITCOIN
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philips
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![](https://bitcointalk.org/Themes/custom1/images/post/xx.gif) |
March 16, 2013, 02:54:52 AM |
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Thanks man, good info.
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MKEGuy
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March 16, 2013, 03:12:40 AM |
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This is where we ended up. The only thing different right now is the way the 3 cards in the front rig are mounted and the fan us hanging up above the rigs blowing down on an angle for better air flow. Almost every card, except one, is mining at or below 50 deg C with some pretty significant overclocking going on. (Up to 1718 on memory) The one card that isn't running so cool is getting taken apart in the next few days to get a good once over. Give it a re-paste, make sure all the screws are tight on the cooler, etc. Its only about 5 deg warmer then the others, but its enough for me to want to investigate. I'll post up an updated picture come Tuesday when I get back to the rigs to play with them some more. ![](https://ip.bitcointalk.org/?u=http%3A%2F%2Fimg831.imageshack.us%2Fimg831%2F3618%2F20130309201725.jpg&t=665&c=XrTEUfX3hngqnw)
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If you have >100 posts play the Circle of Trust Game If I have helped you in any way, or you are just feeling generous... please feel free to donate! ![Smiley](https://bitcointalk.org/Smileys/default/smiley.gif) LNarfMNLyymkS9WYQFLcmr46AeMYNP8Qj2
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