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If it's a full case I'd pay the 150 for it if vents are included. If nothing else it would save time for assembly (right now I have to drill holes and all that stuff and it easily takes an hour or two to assemble everything).
Affirmative, complete case with vents, cuttings, mounting holes (with threads), spacers for motherboard, etc. are included! No more drilling, messing with cable zip ties, ropes, etc......you just simply screw your GPU's and other stuff in the case and you are ready to mine....shouldn't take more than half an hour for rig with 6 cards  Feel free to ask us more. |
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Tnx for your support.
Summer is coming, therefore we are also thinking about a low budget case for 6 GPUs with high cooling performance - 4 fans with massive airflow of 120 CFM each and forced wind tunnel effect.
To be more exact, lets assume that we have an ambient temperature around 95°F (35°C). The cooling would be designed in a way that it could lower the graphic cards temperature from lets say your average overheating temp of 200°F (93°C) down to about 180°F (82°C).
Now I need Your opinion - are you willing to pay about 200$ (150€) for such case?
Looking for your feedback...
--Your MiningRack team
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Site looks good, can't wait for the mining rack to be available, it just looks AWESOME.
When is the ETA ?
Risers: on stock, dispatched in 24 hours BasicWork cases: produced and dispatched in 5-7 working days SinkWork cases: produced and dispatched in 10-21 working days after preorder period Shipping Europe: 3-5 working days Shipping USA/worldwide: 5-7 working days However we are always trying to ship asap Feel free to contact us. -- your MiningRack team |
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After spending 2 days tuning my 290X Sapphire cards I got optimal parameters for my exact cards, hashrate is about 870 per card.....sharing with you, also wrote it in that doc
ups, don't have access to add my config to doc, let someone else do it.... |
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tc 32765 / mem 1250 / eng 947 powertune 30 should get around 910khs tc 32765 / mem 1500 / eng 1020 powertune 30 should get around 980khs for me atleast heres some settings https://docs.google.com/spreadsheet/ccc?key=0ApyK2Y6kDbKidGFrWjh1WkNIeW5WSF96YS1TVW1MZWc&usp=sharing#gid=0I have 8 GB RAM T Does anyone have Sapphire R9 290X 4G DDR5 (SKU: 21226-00-40G)?
I tried everything but TC can't be higher than 25000, best performance at 22528, that is around 840khps.
Other settings standard:
"intensity" : "20",
"worksize" : "256",
"lookup-gap" : "2",
"shaders" : "2816",
"thread-concurrency" : "22528",
"gpu-engine" : "900",
"gpu-fan" : "90",
"gpu-memclock" : "1550",
"gpu-powertune" : " 0",
"temp-cutoff" : "90",
"temp-overheat" : "85",
"temp-target" : "80",
"api-port" : "4028",
"expiry" : "120",
"failover-only" : true,
"gpu-threads" : "1",
"no-pool-disable" : true,
"log" : "5",
"queue" : "1",
"scan-time" : "60",
"temp-hysteresis" : "3",
"scrypt" : true,
"kernel" : "scrypt",
"kernel-path" : "/usr/local/bin"
Any idea why cards go in failure when increasing TC above 25k? Do you think I could get more than 840 khps from those cards?
how much ram do you have 4 or 8G I think the RAM speed is too high, especially without the powertune. Try at 1400MHz and see if that works, 290x should be able to handle --thread-concurrency 32765 (27400 works good on 290) rather well and "worksize" : "512", GPU engine will be fine at 940Mhz, but hot. Judging by the temp target, you aren't using a stock card, no need to have fan running at 90%. 45-75% will do. "auto-fan" : true, "gpu-fan" : "45-75", tnx...I'll try your suggestions and let you know if it let me increase TC....should I also set the powertune to 20 or something like that? After spending 2 days tuning my 290X Sapphire cards I got optimal parameters for my exact cards, hashrate is about 870 per card.....sharing with you, also wrote it in that doc "intensity" : "20", "worksize" : "512", "lookup-gap" : "2", "thread-concurrency" : "22528", "gpu-engine" : "950", "auto-fan" : true, "gpu-fan" : "50-90", "gpu-memclock" : "1575", "gpu-powertune" : "30", "temp-cutoff" : "95", "temp-overheat" : "90", "temp-target" : "80", "api-port" : "4028", "expiry" : "120", "failover-only" : true, "gpu-threads" : "1", "no-pool-disable" : true, "log" : "5", "queue" : "1", "scan-time" : "60", "temp-hysteresis" : "3", "scrypt" : true, "kernel" : "scrypt", "kernel-path" : "/usr/local/bin" btw, highest possible TC was 28160, but than hash rate was only 750, best performance is at TC 22528. Optimal GPU eng and Memclock are 950/1575 for my configuration. Tnx for help anyway |
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tc 32765 / mem 1250 / eng 947 powertune 30 should get around 910khs tc 32765 / mem 1500 / eng 1020 powertune 30 should get around 980khs for me atleast heres some settings https://docs.google.com/spreadsheet/ccc?key=0ApyK2Y6kDbKidGFrWjh1WkNIeW5WSF96YS1TVW1MZWc&usp=sharing#gid=0I have 8 GB RAM T Does anyone have Sapphire R9 290X 4G DDR5 (SKU: 21226-00-40G)?
I tried everything but TC can't be higher than 25000, best performance at 22528, that is around 840khps.
Other settings standard:
"intensity" : "20",
"worksize" : "256",
"lookup-gap" : "2",
"shaders" : "2816",
"thread-concurrency" : "22528",
"gpu-engine" : "900",
"gpu-fan" : "90",
"gpu-memclock" : "1550",
"gpu-powertune" : " 0",
"temp-cutoff" : "90",
"temp-overheat" : "85",
"temp-target" : "80",
"api-port" : "4028",
"expiry" : "120",
"failover-only" : true,
"gpu-threads" : "1",
"no-pool-disable" : true,
"log" : "5",
"queue" : "1",
"scan-time" : "60",
"temp-hysteresis" : "3",
"scrypt" : true,
"kernel" : "scrypt",
"kernel-path" : "/usr/local/bin"
Any idea why cards go in failure when increasing TC above 25k? Do you think I could get more than 840 khps from those cards?
how much ram do you have 4 or 8G I think the RAM speed is too high, especially without the powertune. Try at 1400MHz and see if that works, 290x should be able to handle --thread-concurrency 32765 (27400 works good on 290) rather well and "worksize" : "512", GPU engine will be fine at 940Mhz, but hot. Judging by the temp target, you aren't using a stock card, no need to have fan running at 90%. 45-75% will do. "auto-fan" : true, "gpu-fan" : "45-75", tnx...I'll try your suggestions and let you know if it let me increase TC....should I also set the powertune to 20 or something like that? OK, I'll try step by step, as far as I come home from my job..... But do you thing all Sapphire R9 290X cards could run with such progressive settings, they aren't all the same, are they? |
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I have 8 GB RAM T Does anyone have Sapphire R9 290X 4G DDR5 (SKU: 21226-00-40G)?
I tried everything but TC can't be higher than 25000, best performance at 22528, that is around 840khps.
Other settings standard:
"intensity" : "20",
"worksize" : "256",
"lookup-gap" : "2",
"shaders" : "2816",
"thread-concurrency" : "22528",
"gpu-engine" : "900",
"gpu-fan" : "90",
"gpu-memclock" : "1550",
"gpu-powertune" : " 0",
"temp-cutoff" : "90",
"temp-overheat" : "85",
"temp-target" : "80",
"api-port" : "4028",
"expiry" : "120",
"failover-only" : true,
"gpu-threads" : "1",
"no-pool-disable" : true,
"log" : "5",
"queue" : "1",
"scan-time" : "60",
"temp-hysteresis" : "3",
"scrypt" : true,
"kernel" : "scrypt",
"kernel-path" : "/usr/local/bin"
Any idea why cards go in failure when increasing TC above 25k? Do you think I could get more than 840 khps from those cards?
how much ram do you have 4 or 8G I think the RAM speed is too high, especially without the powertune. Try at 1400MHz and see if that works, 290x should be able to handle --thread-concurrency 32765 (27400 works good on 290) rather well and "worksize" : "512", GPU engine will be fine at 940Mhz, but hot. Judging by the temp target, you aren't using a stock card, no need to have fan running at 90%. 45-75% will do. "auto-fan" : true, "gpu-fan" : "45-75", tnx...I'll try your suggestions and let you know if it let me increase TC....should I also set the powertune to 20 or something like that? |
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Does anyone have Sapphire R9 290X 4G DDR5 (SKU: 21226-00-40G)?
I tried everything but TC can't be higher than 25000, best performance at 22528, that is around 840khps.
Other settings standard:
"intensity" : "20",
"worksize" : "256",
"lookup-gap" : "2",
"shaders" : "2816",
"thread-concurrency" : "22528",
"gpu-engine" : "900",
"gpu-fan" : "90",
"gpu-memclock" : "1550",
"gpu-powertune" : " 0",
"temp-cutoff" : "90",
"temp-overheat" : "85",
"temp-target" : "80",
"api-port" : "4028",
"expiry" : "120",
"failover-only" : true,
"gpu-threads" : "1",
"no-pool-disable" : true,
"log" : "5",
"queue" : "1",
"scan-time" : "60",
"temp-hysteresis" : "3",
"scrypt" : true,
"kernel" : "scrypt",
"kernel-path" : "/usr/local/bin"
Any idea why cards go in failure when increasing TC above 25k? Do you think I could get more than 840 khps from those cards?
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Hi,
I also have Sapphire R9 290X (21227-00-40G) and had same problems, until I decreased the thread concurrency - I wasn't able to run above 28000 at all so I decreased it to 22528, what results in highest possible hash rate (around 900 khps) and stable operation (22528 is multply of my GPU's shaders - 2816). I guess that not every single model of Sapphire R9 290X can run at 33000 TC....
Otherwise, 1000W should be enough, I'm monitoring power consumption of my rig with 2 290X GPUs at wall socket and it is between 600-700W.
Those cards can also run at quite high temperatures, 90°C-95°C is not critical.
I also had a lot of problems with power saving mode of cards, and you cannot make simple dummy plug, because those cards only have DVI-D output, no analog....everytime when card crashes I have to restart my comp twice, because after 1st forced attempt cards go back to power saving mode.
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