Topic: Mining XMR with Open Compute servers just crushes a GPU rig in price/perf. - page 2. (Read 2548 times)

What difference between mining and running nodes?

I will eventually run them all headless and login via the lan to mess with them.

If your wondering why I went with E5-2660 V1 cpu's it is that right now they are the best performance vs price. I paid a little over $50.00 each for them.

The E5-2660's are half the price of E5-2670's and have ~ %85 of the performance.

Sure, anybody can buy them and run them as long as you can meet the power requirements since these will not run on 110v.

If your outside of the USA freight would probably kill the deal.

I have about 35 instances running on amzn ec2. All of them are 32 core. Can I do something like you?

Given the limited availability fo RX580 -570 gpu's and that has put a dent into my GPU rig plans, I decided to try something that I wanted to do for a while and that is to get a couple of open compute servers and play around with them.
So I ordered two off ebay.

Two Servers:
2x Wiwynn open compute server $380.00
4x E5-2660 V1 cpu’s $207.92 (best price found but the seller only had 4)
4x E5-2660 V1 cpu’s $230.80
8 Gb of DDR 8500 8x1 Gb sticks $17.50
4x used hard drives that I already had $00.00
1x New HP PDU $10.00
Power cords to reach unused 250V a/c outlet $20.00
*not including shipping

Total $866.22 gives 3480 H/s

Open compute server is complete except for cpu's, ram or hard drives. Runs on 200-277 volts.

There are two dual socket 2011 nodes per server.

Running xmr-stak-cpu.
 


Results:

 

So 868 H/s mining monero on one node.

Cost is $216.55 per node.

So 868H/s for $216.55, not too shabby.

I do not know the power usage yet but I would guess about ~200-220 watts per node (just a guess as the cpu's are rated for 95 w each and are running only 10 of 16 threads per cpu plus what ever the mobo's use.)

And a big plus is that I did not have to dick around with trying to optimize it for the best speed/stability since Intel already did that.

So four nodes in two servers will crank out 870 H/s x 4 = 3480 H/s for roughly 800- 880 or so watts.

And when the faster cpu's come down in price I can easily upgrade for more speed.

Defiantly beats gpu's on price for mining cpu coins.

Yes they are somewhat limited in what to mine but it is another option for mining plus its very cool hardware to use.



Edit: Edited final prices above.

Running Ubuntu 17.04 server and XMR-STAK-CPU

Edit2: Power usage.

I'm just testing one server so for a total i'll just double the readings since they are setup identically.

No cores turned off.

One server plugged in and both nodes powered off: 15w
One node powered on, Ubuntu 17.04 server booted up and idling : 56.5w
One node after 10 minutes mining Monero with 20 threads : 208w @ 868 H/s
Two nodes powered on, Ubuntu 17.04 server booted up and idling : 117w
Two nodes after 10 minutes mining Monero with 40 threads :  401w  @ 1736 H/s

So two Open Compute servers running eight E5-2660 V1 cpu's are mining Monero at 3472 H/s using 802 watts.

The efficiency is:

      4.33 H/s per watt.
     4.00 H/s per dollar.
 
These Open compute servers just are WAY more efficient mining XMR than a GPU rig.