Topic: Happy New Years! Seventh alt coin thread! - page 59. (Read 34166 times)

My Burst rig consists of 5 Supermicro 846 chassis' which hold 24 disks each.  The master one has a Supermicro X10DRi in it and the 4 slave chassis's just have a small power control board to power on the PSU's.  The fans are all connected to the SAS2 backplanes.

Master chassis internals:





I'm just running 2 16GB DDR4 DIMMs per CPU, so I'm only using 2 of the 4 channels.

There's one LSI 9211-8i HBA with 4x6Gpbs lanes connected to the internal SAS2 expander.  And there are 3 LSI 9200-8e HBA's which each provide 2 4x6Gbps SFF-8088 connectors for connecting external chassis. So I can have a total of 6 external chassis connected at once without resorting to any daisy chaining.  The 5th card on the far right is an Intel X520 dual 10Gb NIC connecting the server to my 10 Gb switch.  There are plenty of PCIe lanes to go around, so each card has 8 at its disposal, so no bottlenecks anywhere from an I/O perspective.

Between the 4 HBA's, I have a total bandwidth of 4x8x6Gbps = 192 Gpbs.  So my theoretical throughput when reading and writing is 24,000 MB/s. 

View from the front showing the 108 drives (lower 5 chassis) currently installed just starting to scan a new block:



The 2U 12 bay server at the top of the stack is a dedicated plotting rig atm.  It has a single E5-2683 v3 in it and can do about 50,000 nonces/min.  Below that is my media server, which has 24 6TB drives in it arranged as a RAID60 configured as 2 x 12 disk RAID6 arrays.  It is also spotting a 2683 v3 to handle transcoding needs for media clients.

 I have so much gear buying mobos are not something I need to do.

I need to explain better  I have these 3 pc's

I can put 4x 8tb  hdds in them.
that gives me 96tb for hdd mining
I still want the gpus in them to mine zec

and the cpus to run the hdd mining

Yes, 32tb is not an issue. From rough estimation an i7 8700 can scan 50x 8tb drives before maxing out 100% cpu usage. I'm extrapolating my 1950x's performance, which is underclocked to 3.3ghz use 40% cpu scanning 40 drives. I think nows the time to get in early on HDD, all it takes is a whale swiping all <$200 drives.

This $150 drive works: https://www.amazon.com/Seagate-Expansion-Desktop-External-STEB8000100/dp/B01HAPGEIE/ref=sr_1_3?s=pc&ie=UTF8&qid=1519479080&sr=1-3&keywords=8tb

Or wait for $160 WD easystores, which has 2 year warranty. The seagates only 1 year warranty.


Those are really good write speeds and no bottlenecks when scanning. ES cpus is definitely the better option. I once struggled for 3 weeks with an Xeon e5 2630v4 ES and evga x99 ftw K. never got it to post, bought 6800k and called it a day. Think I got a ES revision that's too early. haven't dived into ES again, but very cool to see it working. Which mobo are you using? Any rig pics?
Writing over my usb hub only has 40+ mb/s despite there being no bottlenecks. 120mb/s if directly connected to the usb port though.


Img: https://ibb.co/ePqNTH
My threadripper plotting. Underclocked to 3.3ghz. Using 25/32 threads.


I run my 1950x with an rx480 (no choice, need a gpu to post). But gpu is quite troublesome to work with for burst. Plotting with gpu is 2 step process, plot to a drive then optimize to another drive. You can use a software called turboplotter to directly plot optimized for gpu, but then the speed halves...

For cpu once plotted it's already optimized. With price of gpus it's not worth using it. Crazydane's ES xeon setup seems like great value, definitely better than threadripper. But an i7 8700 should be easier to work with. Grab a mobo with many usb 3.0 slots, like Evga Z370 FTW or gigabyte Z370 XP SLI, 5 drives per usb3.0 port, cheap 500w psu, borrow 16gb ram and all good to go. When mining just 4gb should do.

do you run  the hdd mining with or without gpus

I'm doing around $17/day right now, but I have had $80 days when I mine a block and/or the coin is valued higher.  It has been above $0.10 recently and will hopefully bounce back.

Average power is a little over 900 watts:



Plus I got a mini split keeping temps in check that consume another 150 watts or so:



So current math does not really show a great return, especially if you were to buy all the hardware from scratch (I had a lot of mine already).  But I have been hodl'ing everything I have mined since last summer and am hoping it will be a good long term investment.  As KaydenC mentioned, if POC goes belly up, all those HD's will still be worth quite a bit.  In my case, I'd keep them for multimedia (already got another 100+ TB server for that).

Okay  417tb  earns what per day  and how much power does it take.

I got one rig with 4x MSI 1080Ti's on a custom water loop.  2x 480 rads and 1x 240 rad.  Despite that, I'm still seeing a 11 degree temp differential between ambient and coolant temp, suggesting I'm under radded.  That said, those 4 1080Ti's on water hash like nothing else I got:



Btw, I'm totally hooked on Hive OS as you can probably tell from the above screenshot. 

I currently have 417TB online for HDD mining.  Plot speeds are good at around 90,000 nonces/min on a dual E5-2660 V4 rig (paid $350 each for ES versions of those CPUs):



And scan speeds are really good:



Takes around 20 seconds to scan 417TB worth of plots.

I have  3 omen pc's that could do 32tb each  and mine 2 1080ti's

Is it viable to  mine gpus while the pc mines hdd?

you could be on to a good idea.

    yeah  1370  is hard on a 1500 watt psu.

  I have 4 of them  and I am willing to blow up one of them to see if they can do 1370  for a year

Hmmm... Aren't you cutting it a bit close with only 1500W?

Also how are you keeping temps so low? I can't stop thinking the GPUs are too close on such a setup... 😐 Unless they're all hybrids?
Edit: Ok I see they are. No issue then.

Just sold a bunch of 480/470s for an average of $370 each. Left with 6 polaris cards for sale (let me know if interested). They are 5x sapphire pulse 570 4gb and 1x 580 8 gb HIS. They were used since last May in a dust free environment, undervolted to 875mv.

GPUs: https://ibb.co/eqi0xc
Box: https://ibb.co/nvzjOH

I stopped gpu expansion for now, it's too difficult to find them at a good price. Even my early jan order of 1070tis from a local supplier has yet to arrive. Right now I'm focused on HDD mining. Takes 16 months to payback HDD mining now, but with new proof of capacity coins coming I believe it's viable. Worst case scenario the $150 8tb drives can be liquidated for $120. HDD is low returns, but low value at risk. Unlike GPUs, where a $400 1060 6gb can drop to $150 in value if things go south.

Took 3 weeks and I have 300tb online. Looks like another 6 weeks to get the full 1pb running. An Rx480 it takes 1 day to get 1 drive plotted and optimized. 1950x can do 2 per day.

For anyone who's interested to do HDD, I recommend NOT going for a threadripper build. Go i7 8700 build instead, no gpu needed. Add another rig when needed. The rig cost per drive is similar, total compute power for plotting is similar too. Also don't be like me, connecting 10 drives per usb 3.0 hub. There's new miner software that can scan a 8tb drive in 17 seconds now, limit to 5 drives to prevent read bottlenecks.

I finally got the balls to max the onda b250 board   with 8 1080ti's

using the corsair  ax1500i

5100 sols is nice

new video

Your video will be live at: https://youtu.be/1hZ0U1x_uZo

Let me get some of that cash!  

I was starting to get cash heavy and pulled the trigger w/a few BTC @ 10k (pulled trigger too early, too excited) then missed the 6500 entry point because I was strapped - liquidated some more assets by that time it was @ 8k but still went all in. In the long run that 15% and 35% gain loss won't matter... but I would have really liked to be priced in at 6500.

Still deciding if I should sell off all the miners or not. Some days it's no, some days I'm all for it. I still like playing with the miners, maybe I'll chop it down to 10 rigs or something. Who knows. Just typing out loud right now.

Crazydane did it.

I was going to but decided to go hybrids

 You young pups - I first learned to program on a PDP-11/70 - about the same time CP/M first showed up.

 "Copy Is Backwards!"


If CP/M tried to show up 10 years later, DEC could have sued for "look and feel" violation as CP/M's user interface was pretty much the RT-11 user interface (and very similar to the RSTS/E interface).


The oldest machine I ever actually worked with was a Bendix G-15 - but to be fair it was old when I encountered it, almost as old as I was.
DRUM for main memory, and average access time measured in a lot of milliseconds.

It appears I have 2 from different batches, one has the BIOS switch one does not.
Weird stuff, I bought them in the same order from Newegg.

Anyone in here having setup 6+ GPUs on a riserless mobo with a custom water loop? I suppose that would be a good setup too, you'd need need two 360 rads I suppose to dissipate the heat...

Thank you

I really appreciate your posts and opinions, I have been listening to your advices and I learned a lot
You're helping me to gain some money and I'm very thankful

This is a good idea, I'll sell more cards and wait with cash in hands to choose between:
Buy coins directly or buy new cards when new generation of Nvidia come out

Yep  that is why  they are not windows designed they are linux designed.

the d1800  with a tiny cpu and 4gb ram  will do 4x 1080ti's  with ease on  smos

it will do six hybrid cards with ease  I ran 5 evga 1070ti hybrids with 1 1070 hybrid no issues.


I am getting an evga 1080ti hybrid today.
 I will have 13 1080ti waterblock the 14th comes on monday.


I have 2 asus 1080ti turbo's
I have 2 msi   1080ti aero's
I have 2 asus  1080ti turbo's in a pc
To move out in the next few weeks.

Spring and summer I will mine with 14 + 1 + 6 = 21 1080tis

I have a few asic sticks but no asics