liomojo1 (OP)
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February 24, 2017, 07:25:58 PM Last edit: February 27, 2017, 04:47:23 PM by liomojo1 |
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Guys here is my 8 gpu rig 4x7990 and 2x1070 on a gigabyte Z87X ! now 10 gpu
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bathrobehero
Legendary
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ICO? Not even once.
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February 24, 2017, 07:27:28 PM |
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Meh, that's 5 physically separated GPUs to me.
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Not your keys, not your coins!
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ccccccc7
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February 24, 2017, 07:32:36 PM |
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Nice I think you can max out at like 7 or 8 cards per rig right? If they were all 2 core cards you would have insane 14gpu rig, would that work? There are 2 cores are on the same card they would be using the same lane, as I understand the amount of lanes is what restricts the total amount of gpus you can use on one mobo ?
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liomojo1 (OP)
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February 24, 2017, 07:56:34 PM |
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Yes they are 5 cards on five slots! I was wondering if someone used 5 or 6 7990 on one rig or 4 is the maximum?
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sirslayer
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February 24, 2017, 08:05:08 PM |
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I wonder if anyone ever bought a HP dl580 server? you can install 8 video cards @ pcie x16 since it does have 8 pci-e x 16 slots plus 4 slots of x8 .. just wondering ..
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bbkoopsta
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February 24, 2017, 09:24:00 PM |
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Hi i thought it's possible to put 7 GPUs on a rig but seeing this made me confused tell me what mobo do you have ?
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cptfisher
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February 24, 2017, 09:46:32 PM |
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maximum is 8 gpu for windows driver.... And less on some motherboard that cant allocate resources for graphic memory
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PandaPanda!
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February 25, 2017, 12:02:58 AM |
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I once tried 6 x 7990s, but it wouldn't work with more than 8 GPUs in Windows, so i gave up trying I'm surprised you can still mine with your 7990s.. all of mine died after 1 year of mining. 7990s are terrible for mining unless you have them water-cooled.
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bit815792215
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February 25, 2017, 06:33:57 AM |
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was waiting to do the same setup and then read this thread, 4 7990's on zcash pulling 1450w from the wall..mobo gigabyte z97.. thanks! wasnt sure if I had a mobo that would work.
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thesavoyard
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February 25, 2017, 07:40:08 AM |
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I wonder if anyone ever bought a HP dl580 server? you can install 8 video cards @ pcie x16 since it does have 8 pci-e x 16 slots plus 4 slots of x8 .. just wondering .. Hmm I'd like to know too. Since they are about 1400 euros used with 2x 1200w psu. I wonder if windows server can run more than 8 gpu?
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liomojo1 (OP)
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February 25, 2017, 08:52:42 AM Last edit: February 25, 2017, 09:23:51 AM by liomojo1 |
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was waiting to do the same setup and then read this thread, 4 7990's on zcash pulling 1450w from the wall..mobo gigabyte z97.. thanks! wasnt sure if I had a mobo that would work. Hi , if you have one more graphic card to put to see if 9 gpus will work? Put on pcie 1234 and 5 if you have time! Did you overclock it to get this 310sol/s , which driver do you use! Mine work at 1000/1500 and undervolted to 1.13v. Or may be you gave a better cpu?
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Bops
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February 25, 2017, 02:14:52 PM |
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What model is your mainboard ? How can you put 7gpus on one board?
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ccccccc7
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February 25, 2017, 06:11:55 PM |
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I once tried 6 x 7990s, but it wouldn't work with more than 8 GPUs in Windows, so i gave up trying I'm surprised you can still mine with your 7990s.. all of mine died after 1 year of mining. 7990s are terrible for mining unless you have them water-cooled. I have 2 7990 which ran between 80°C - 90°C with stock fans and now run at 56°C - 75°C with 2 x 140mm yate loon fans zip tied to the card mining Equihash. The stock fans are useless for mining - I hit over 100°C when the card's airflow was restricted i.e. in a case. Only way is a higher static pressure and higher airflow solution
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bit815792215
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February 25, 2017, 10:03:05 PM |
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I once tried 6 x 7990s, but it wouldn't work with more than 8 GPUs in Windows, so i gave up trying I'm surprised you can still mine with your 7990s.. all of mine died after 1 year of mining. 7990s are terrible for mining unless you have them water-cooled. I have 2 7990 which ran between 80°C - 90°C with stock fans and now run at 56°C - 75°C with 2 x 140mm yate loon fans zip tied to the card mining Equihash. The stock fans are useless for mining - I hit over 100°C when the card's airflow was restricted i.e. in a case. Only way is a higher static pressure and higher airflow solution stock thermal paste on the 7990 is shit, replace it and the pads and they do fine
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liomojo1 (OP)
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February 27, 2017, 07:33:29 AM |
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I got a powercolor 7990 and tried with 9 gpus , but when windows try to install the driver for the 9th card it crashes in blue screen. One question , about that 7990 powercolor- it is a bit strange card , gpu-z says the cores are tahiti not malta as the others , and at the same speed as the others 1000/1500 it gives 245sol on every core and the others give 295sol for a core? What could be the problem?
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liomojo1 (OP)
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February 27, 2017, 02:52:06 PM |
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matmator
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bou !
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February 27, 2017, 03:45:27 PM |
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How do you do to put 10gpu? I do not understand
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go to the moon !!
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Gasotard
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February 27, 2017, 04:42:31 PM |
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How do you do to put 10gpu? I do not understand He used 4x7990 and 2x1070 on a gigabyte Z87X ! The 4X7990 uses 4 PCIE slots with 8 GPU in total. 2x1070 use 2 PCIE slot. So he only uses 6xPCIE slots.
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matmator
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bou !
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February 27, 2017, 04:54:09 PM |
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Ah ok it's cards with 2gpu!
Ah the wicked one! Lol
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go to the moon !!
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liomojo1 (OP)
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February 27, 2017, 04:56:50 PM |
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I tried on a h81 pro btc and it can't boot with more than 6gpu even if they are on 5 slots! So h81 have trouble with this, but the gigabyte z87x works like a charm, the only thing you need to know that you can put only 8 cards from one manufacturer AMD or NVidia.
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