Need rig recommendations please help



  • @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.



  • 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.


  • admin

    @socal NAS drives are a good choice - they're engineered to deal with the vibrations the other drives in the system create.



  • @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.



  • @vaxman ah ok I see what you are saying now



  • 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.



  • @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=N82E16819113428

    ASRock X370 Taichi AM4 Mobo $200
    https://www.newegg.com/Product/Product.aspx?Item=N82E16813157757

    G.SKILL Ripjaws V Series 16GB (2 x 8GB) DDR4 3200 $145
    https://www.newegg.com/Product/Product.aspx?Item=N82E16820231902

    EVGA SuperNOVA 80+ PLATINUM 750W PSU $140
    https://www.newegg.com/Product/Product.aspx?item=N82E16817438057



  • Interesting, I'm looking at the Ryzen 7 versus the i7-7700K



  • @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.



  • @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


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