(transcribed from this video)

Hello guys it’s Lee here for IMineBlocks.

In this video I just wanted to share with you something quite cool so we’ve just had a really cold frosty night and I think it went down to between -5C & -8C last night so I wanted to show you the elcheapo rig which is the one with four R7 370’s that’s actually in my shed so I just want to show you the performance that you get with that one and also really low running temperatures so I’m going to share that with you guys now.

frosty1

So I’ll show you the screen capture first and then we’ll actually take a look at the actual machine itself and take a look at up close and we’ll see how cool it’s running.

Ok so we have just logged into the elcheapo rig using teamviewer so you can see we’ve got the claymores GPU miner running in the background like say this machine has four r7 370 that are the 4GB versions and MSi brand, pretty good GPUs overall. We are getting just under 50 Mega hashes per second and we’re using a little over 500 watts on this machine but what I really wanted to show you was the actual GPU temperatures. So these cards are quite low power they use around about a hundred watts per GPU and that’s quite low power anyway but at the moment the ambient temperature is a little over 5 degrees but the actual GPUs are getting really cool temperatures so we’re less than 65 degrees Celsius in most cases.

frosty2

I also want to show you the actual fan speeds as well as I go down the charts you can see they’re all nearly one hundred percent utilization so they’re mining at full steam ahead and the cards also overclocked and so you can see the actual core clock is up higher and also the memory clock and we’ve got a little bit increase on the actual power in the cards but if we focus back on the actual hardware tab you can see GPU one is running between sort of ten and fourteen percent fan speed and same sort of numbers for GPU 2 a little bit faster for GPU 3 at seventeen percent fan speed and GPU 4 which the one that will be on the very end is running the coolest and that’s using seven percent fans speed so those fans are all rotating really slowly.

frosty3

If we just take a look at the actual custom fan profile you can see I’ve just been sort of experimenting myself. We’re not running this fan profile at the moment I’m just using the automatic settings but I think we could probably take it down to zero fan speed up to 70 degrees and then from there it’s going to rock it right the way up so let’s click ok we’ll go with this custom fan seconds and we’ll just see how that increases the actual temperatures of the GPUs and where they go over 70 degrees or I think probably they will pick up hate quite quickly but I don’t feel we are you know going to be at any risk of actually overheating the cards or anything like that because it’s just so cold outside and I’ll show you that in just a moment we’ll see exactly how cold it is.

frosty4

So you can see the temperatures are picking up slightly too, the fans are probably just kicked in now actually yeah you can see on this the two middle gpus they’re the ones that always going to be the warmest because they’re on the middle of the rack and they just picked up a little bit of fans speed there now and I was hoping to get it to a point where they would be completely stopped and I did it for just a little while but now they’ve just kind of crept over that 70 degrees temperature but like I say you can still see the actual fan speeds are very slow because of the ambient temperature so I’ll just turnoff the custom profile now just let go back to default. It will pick up initially but then it will go back down to more stable between that ten to fifteen percent fan speed.

frosty5

Ok so I’ve just been recording just for a minute and you can really hear how quiet the actual rig is running and it’s running super cool and super quiet. So I just wanted to share with you the running of rigs in these cold winter conditions. It’s really frustrating here today and I’m glad to be back indoors warming up a little bit but I’m perfectly happy to keep the miner outside and keeping them running nice and chilled because its going to get better efficiency than in the summer time. It’s much easier to mine in these winter conditions than it is in the summer conditions dealing with heat is a real problems specifically for GPU miners or mining in general if you have a cluster of machines.

Taking a look at the Polaris RX400 series of AMD gpu’s and seeing how they compare when mining Ethereum.

The performance, efficiency and cost of each graphics card is considered for mining Ethereum.

Hardware in this video

Sapphire Nitro RX 460 4GB
US http://amzn.to/2byFq9O
UK http://amzn.to/2byEFxq

Sapphire Nitro RX 470 8GB
US http://amzn.to/2byF8jg
UK http://amzn.to/2bTHYw7

XFX Black Edition RX 480 8GB
US http://amzn.to/2bPaaOD
UK http://amzn.to/2bGNbqm

Ethereum Multi CPU & GPU Miner Download:
http://bit.ly/2gjOcJX

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Tips are appreciated. Here’s my Addresses

Bitcoin 12v4d15AuopsVzudct7J8LJMm7qH95SxA1
Ethereum 0x5B905114167C80276AD28A997f606C698547fe40

I answer a few questions from Pier about mining Ethereum.

The questions:-

1- how much the version (2gb;4gb;5gb….) and the DDR type makes the difference on your final Mh/S?

2- im not sure if i understood right, that the cpu dosnt make a lot of difference, just need a decent one (30£?)

3- if my station can mining at 30 mh/s today, i assume i can earn around 65 dollars for a month, without counting the eletricy cost. 6 months later my station will works and mines in the same way, giveing me the same amount of money for a month?

4- my network, my connection in term of download and upload might make the difference?

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Tips are appreciated. Here’s my Addresses

Bitcoin 12v4d15AuopsVzudct7J8LJMm7qH95SxA1
Ethereum 0x5B905114167C80276AD28A997f606C698547fe40

One of my rigs went offline and upon inspection I discovered that one of the two Gigabyte 280x’s had died. Also a fan had failed on the remaining working gpu and so I decided to use the dead card as a donor and swap the fans over.

Want to help support the channel?

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Tips are appreciated. Here’s my Addresses

Bitcoin 12v4d15AuopsVzudct7J8LJMm7qH95SxA1
Ethereum 0x5B905114167C80276AD28A997f606C698547fe40

Testing this mining rig with the dual miner and recording the performance and power usage compared to mining Ethereum only.

Miner Download Link
http://imineblocks.com/wp-content/uploads/2016/08/Claymores-Dual-EthereumDecred_Siacoin-v5.3.zip

Want to help support the channel?

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Tips are appreciated. Here’s my Addresses

Siacoin 002d16d5194043c76beb5cc7d2d9f04c9657ce38ee692c25471302974c3c4e42040328d0c555
Bitcoin 12v4d15AuopsVzudct7J8LJMm7qH95SxA1
Ethereum 0x5B905114167C80276AD28A997f606C698547fe40