Need rig recommendations please help
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Because your disks will be running 24/7 i recommend some cooling such as case fan arrangements or attach a cooling kit on the underside of them to keep the spindle bearings cooler.
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@vaxman said in Need rig recommendations please help:
I'd ditch this expensive GPU and buy a used one, prefereably AMD.
Have to admit that my experience with opencl code is limited to this exact scenario, but 2+ years ago.
Please have a concentrated look into the mining section to find specifics and perhaps comparisons between
various Nvidia and AMD chips. It might very well be that the most bang/buck is to be had with a 100$ used GPU(s).I would go along with sticking with AMD, and seriously consider a used card.
I have an old R9-290X and with 80TB the scan time is 10 seconds.
Rich
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Ok I have replaced the GTX 1070 with a GTX 1060 and I have replaced the 32GB of RAM with 16GB bringing total Rig Cost down to $1144 from $1410(minus HDDs, shipping, and taxes)
I am also contemplating if I should just go ahead and get an 8 Port SATA controller now or if I should wait until I actually require it. Sorry I have a tendency to Futureproof (hence the original 1070 and 32GB RAM lol)
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@socal As others have said, reconsider the nVidia card - AMD better proposition.
Also avoid NAS - you're limited to network speed, and unless you have a 10Gb/s connection, you're going to be bandwidth limited.
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@haitch yeah I'm staying away from NAS and I just can't let my Nvidia bias go lol ok ok I'll look for an RX 480
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@socal A used 280X is more than enough.
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@haitch oh that's all I'll need? I was told by several ppl to go with RX 480......
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@socal If you want a new card, then a 470/480 is the way to go, but I'm still nicehash mining on a bunch of 280X's, and they're great for jMiner
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@haitch I cranked it back to a 460 so total Rig cost (minus HDDs, shipping, and tax) is now $1110. I'm happy with that cost as it's well within the $1500 or so max budget I set.
I will not compromise on the CPU/MoBo but everything else I can scale back, which I have done.
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@socal Invest in GPU more than CPU
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@rnahlawi well just in case I want to make sure I have a powerhouse of a CPU. I'm happy with the rig specs, should be plenty of power at a decent cost.
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As for the HDDs I'm thinking of going with 8TB NAS drives. The NAS drives are a better quality than desktop drives and are engineered specifically for always on, 100% usage, whereas regular Desktop drives are not meant for constant usage, like Burst Mining does.
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@socal NAS drives are a good choice - they're engineered to deal with the vibrations the other drives in the system create.
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@socal said in Need rig recommendations please help:
@haitch oh that's all I'll need? I was told by several ppl to go with RX 480......
like I said, an R280X will produce some 150 MB/s.
What does that even mean ?It has 3 GB of local memory, so every 20 seconds it will flood your IO system to get rid of those 3 GB.
They have to go somewhere. And until that is done, it will not continue to compute.
So basically, when your Operating System is not able to manage enough disk buffers for writing , in this case : 3 GB, the overall speed will go down considerably.
compute 3GB -> flush to disk -> still flushing, -> still flushing -> compute next 3 GB(I'm not so sure about Windows here, I had nasty 12,5% max buffer problem that couldn't be resolved. Linux doesn't have that problem in general, but depending on filesystem might need a mount option here or there).
So you buy this suuuper fast RXwhatever, yielding 300 MB/s.
These have to go somewhere.. you'd need a stripe for that, as disks typically max out at 150-180 MB/s. Otherwise your GPU waits for your mis-scaled IO system.
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@vaxman ah ok I see what you are saying now
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Well, all the parts will take 3 business days to arrive after I order them, all parts EXCEPT the case that is... It will take the case 2-4 weeks for delivery.
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@socal I wouldn't even consider an i7 for a mining rig now that the Ryzen 7 1700 exists. Double the cores, double the threads, lower TDP and lower price. Comes with a decent cooler too. The motherboard you picked only has six SATA ports, the Taichi has ten.
Your power supply is too big and expensive, get a Platinum rated one with less wattage for better power efficiency. 32 GB of RAM is too much, I doubt you need more than 16 GB and you can always buy more later if you really need it. I suggest:
Ryzen 7 1700 8 core 16 thread CPU $315
http://www.newegg.com/Product/Product.aspx?Item=N82E16819113428ASRock X370 Taichi AM4 Mobo $200
https://www.newegg.com/Product/Product.aspx?Item=N82E16813157757G.SKILL Ripjaws V Series 16GB (2 x 8GB) DDR4 3200 $145
https://www.newegg.com/Product/Product.aspx?Item=N82E16820231902EVGA SuperNOVA 80+ PLATINUM 750W PSU $140
https://www.newegg.com/Product/Product.aspx?item=N82E16817438057
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Interesting, I'm looking at the Ryzen 7 versus the i7-7700K
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@socal If your primary focus was gaming, I'd say go for the 7700K, but the Ryzen 1700 is almost as good in gaming benchmarks anyway and has double everything else. Based on posts in the forums, I see plotting speeds of around 10,000 - 15,000 nonces/minute with 6700K and other high-end Intel chips. I would expect the Ryzen 1700 to hit at least 20,000 minute plotting to two drives with Xplotter based on its architecture. If that theory is correct, then you really wouldn't need a high-end GPU at all.
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@sevencardz well I'm going to put it to the test, I have ordered the parts and will be able to build the rig either Friday or Saturday

