Archive for the ‘Tests and Reviews’ Category

antminer-s1-btc-asic-miner-thermal-1

If you ever wondered how hot does the Bitmain AntMiner S1 Bitcoin ASIC Miner get when operating and mining for BTC now you can get a better idea about the temperatures thanks to some thermal images that we’ve made of one of these BTC ASIC miners. The AntMiner S1 has the cooling radiators on the other side of the PCBs and not on the one where the SHA-256 mining chips are placed, so the operating temperature of the chips is not so low. Running at the default hashrate of about 180 GH/s you can see temperature of about 68 degrees Celsius and it is of the voltage regulators above the chips. As you can see the temperature on the left is lower than that on the right side of the board due to the fact that the cooling fan is on the left side.


antminer-s1-btc-asic-miner-thermal-2

Moving on to the exhaust side of the AntMiner S1 cooler where the hot air passing through the cooling radiator passes you can see that on the hotter output end the maximum temperature is about 61 degrees Celsius. A the same time the web interface reports operating temperatures of about 45 degrees Celsius for the two boards with chips that make the Bitmai AntMiner S1. As you can see it is a good idea to think more about the improvement of the cooling of the ASIC miner, especially if you do plane to overclock it to 190 GH/s or even 200 GH/s. The hardware is probably able to handle pretty well higher temperatures than these, but ensuring good cooling will make it perform great for longer period of time and you would want to have that when talking about a BTC ASIC miner.

cexio-bitcoin-commodity-exchange-test

CEX.IO is the leading Bitcoin Cloud Mining and Commodity Exchange at the moment where you can purchase hashrate and start mining for BTC immediately. All of the mining hardware and software is cloud hosted and managed for you, so you don’t have to do anything besides purchase some KH/s, MH/s or even GH/s.


Benefits you get with CEX cloud mining for Bitcoins:

– The hashrate you purchase is yours for life.
– You can sell your hashrate the moment you decide.
– No technical knowledge required to mine for Bitcoin.
– No hardware to maintain yourself, so it is very easy to start.
– No software to configure, support or monitor.
– Collective mining, where the chance of getting a reward gets bigger proportionally to the overall pool capacity.
– All mining hardware is kept safe and maintained properly in a full featured data-center.
– No cooling or space-related problems or big electricity bills as with dedicated hardware.
– No power or network connection losses, your hashrate is stable and guaranteed.
– 0% pool fee, yes No FEE for the mining pool, so this means higher profit for you.
– Real-time Stats (see how much you’ve mined, how the system is doing, etc).
– Automatically mining some other coins (NMC, IXC, DVC) as an extra bonus.


But how does all of this work in the real world? We decided to try it out and already a week has passed out, so it is time to report what we have earned mining BTC in the cloud with a hash rate of about 187 GH/s that we have purchased. The total earnings we have accumulated in the course of 7 days equal to 0.39040324 BTC or more than $300 USD at the current exchange rate BTC/USD. And the best thing is that if we sell the GHS we have purchased in order to turn them back to Bitcoin at this moment we are going to get an extra 5% due to the higher exchange rate per GHS since the time we have purchased the hashrate. So just for one week you can say that our invested coins in BTC Cloud Mining have managed to give us about 10% profit… not bad at all.

You can check out the Bitcoin Cloud Mining services offered by CEX IO here…

primecoin-xpm-earnings

We already talked a bit about the Primecoin (XPM) alternative cryptocurrency and have mentioned that it has good potential for growth, so it might be a good idea to mine some XPM now and keep them with the idea that the exchange rate will increase along with the interest in this crypto currency over time. At the moment Primecoins can only be mined with the CPU of a computer, so you can combine Primecoin mining on the CPU with Litecoin mining on the GPU on the same system and make some extra profit from that if you are already mining LTCs on one or more computers. You can of course mine XPM on pretty much any computer, but the more powerful the processor is the better and the same goes for the number of cores, the more – the better.

We’ve decided to give it a go with two systems using different processor for 24 hour time period in order to see what profit we are going to make. Both of the systems are mining Litecoin on the GPU, but that does not interfere as long as you set the cgminer processor affinity to just a single core if using Windows. We have decided to use one of the biggest Primecoin pools for the test – ypool, though the pool also offers other alternative cryptocurrency mining options.

The two CPUs we’ve used for mining are:
– Intel Core i5 2500K Quad Core 3.3 GHz
– AMD Phenom II X6 1100T Six Core 3.3 GHz

The pool we used for XPM mining is ypool:
– 3% fee
– 1000 confirmations per block

The total earnings for 24 hour period (confirmed + unconfirmed):
– 0.3565483 XPM

The value of the Primecoin mined for 24 hours is as follows:
– 0.04838065 LTC
– 0.00139265 BTC
– ~1.15 USD

A little over $1 USD per day does not seem that much of a profit for the moment, but that is only if you sell the Primecoins now, the wise idea however would be to mine now and save the coins for later, expecting to the exchange rate to go sky high. Anyway, it is up to you to to decide if you want to mine and sell now or mine and save the coins for later.


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