filmes porno buceta gostosa phim sex www xxnxx com xxxvideos porno Xvideos Com

Search Results

Testing Protoshares (PTS) Mining with GeForce GTX 750 Ti

7, Mar 2014

ominer-upcpu-miner-results

The GeForce GTX 750 Ti are performing quite well for Scrypt mining as well as some other algorithms when used with the cudaminer software miner, however there are other crypto algorithms that are not yet supported by the cudaminer, but can bi mined on Nvidia-based GPUs. One such example is Protoshares (Bitshares-PTS) where there are just a few pools and a few GPU miners available and not all pools and GPU miners are compatible with each other. So we decided to try the different pools with their particular GPU miner with support for Nvidia on a GeForce GTX 750 Ti video card to see what works best and where you can get the highest possible performance out of your hardware. The results below are from a GeForce GTX 750 Ti video card running at stock frequencies, overclocking migh help you squeeze a bit more performance from each miner…

PTS Mining Pool – GPU Miner Used – Hashrate:

upCPU - ominer - 568 c/m
Beeeeer - cudaPTSwin - 522 c/m
1GHS - PTSminer - 488 c/m
ypool - jhProtominer - 477 c/m
PTSpool - PtsGPUz - 379 c/m
ProtoSharesPool - PtsGPUz - 375 c/m

It seems that upcpu’s dedicated GPU miner that supports only their own pool is the fastest in terms of performance, however the pool is is Chinese, but since it does not require registration you should be able to easily figure how to work with it. Our favourite English language pool, though with a little less performance is 1ghs’s PTS pool that is also very easy to use. Have in mind that these results are from a GeForce GTX 750 Ti GPU based on the new Maxwell architecture form Nvidia, so on other CUDA-capable video cards the performance you get from each miner may differ. That is why we have packed all of the miners that we have tested in a single archive that you can download and try for yourself to see where your hardware will perform the best. Soon we are also going to be checking out the performance with AMD and OpenCL miners for mining Protoshares.

– You can download the pack of Nvidia CUDA GPU miners for PTS on Windows OS here…

First Impressions from the Bit-Mining Cloud Mining Service

4, Mar 2014

bit-mining-cloud-mining-service

Cloud mining is becoming more and more interesting alternative for mining not only Bitcoins, but for Litecoins as well. With the significant increase of the BTC network hashrate and difficulty cloud mining is getting more and more interesting alternative to buying ASIC devices and waiting for them to arrive, to setup them and to support them. Services such as CEX.io that offer you to buy Bitcoin mining hahrate in the cloud have generated a lot of attention and have attracted a lot of users. However the price per GHS there is quite high to just purchase GHS and mine Bitcoins with it on the long run, so we have been looking into new services that have better prices and options for cloud mining. We are already testing the PBmining BTC cloud mining service that offers the best price for long term investment into Bitcoin mining hashrate with the reason being that there is no exchange to trade it at, it is yours for 5 years. But we are also looking for Scrypt cloud mining services as these are still new and not many, due to the fact that Scrypt mining is still done mostly on GPU and there are still no very powerful ASIC devices available to replace the GPU for mining. So we have found another interesting service called Bit Mining that gives you the ability to purchase both SHA-256 (BTC) cloud mining hashrate as well as Scrypt (LTC) mining cloud hashrate. But what really caught our attention was the recent announcement that the service has partnered with Bitmaintech, the only company still shipping relatively powerful SHA-256 ASIC devices that are on stock. We have made a comparison between 180 GHS AntMiner S1 vs 180 GHS Cloud Mining Contract that you might be interested to check out.

bit-mining-trading-ghs-btc-hashrate

Bit Mining offers cloud mining BTC and LTC hashrate and there is an exchange where you can purchase GHS for Bitcoin mining with BTC as well as KHS for Littecoin mining with LTC. The price of SHA-256 cloud mining hashrate is currently about 0.017 BTC per GHS which is lower than the current exchange rate at CEX.io that is about 0.0197 BTC per GHS, but is almost twice higher than on PBmining where the current price is 0.0089 BTC per GHS (for a long term contract though, meaning you cannot sell it on an exchange). At the moment there are about 4537 GHS available for trade on the exchange, so significantly lower than on other cloud mining services with their own exchanges, but still more than enough for many people to get into cloud mining with a small investment just to try it out. So if you want to purchase 100 GHS Bitcoin cloud mining hashrate at Bit Mining you will have to pay for it about 1.7 BTC.

bit-mining-trading-khs-ltc-hashrate

Moving onto Scrypt cloud mining for LTC, you will have to pay with Litecoins for the hashrate (the exchange does have BTC/LTC trading as well, though not very active at the moment). Bit Mining currently sells on their exchange the Scrypt cloud mining hashrate for about 0.0745 LTC per GHS, or with other words 100 KHS will cost you about 7.5 LTC. With the current exchange rate of LTC per USD a 700 KHS hashrate that is pretty much equivalent to a clocked Radeon R9 280X video card will cost you about $900 USD. So significantly more expensive than getting the video card, but without any need to setup and maintain hardware or to pay for electricity etc. At this moment the cloud mining hashrate available on the Bit Mining exchange is about 2270 KHS, so not that much actually, but more than enough to start testing the service and as more hasrate is added if you are happy with the results you can get more.

bit-mining-cloud-mining-local-pool

What we did for starters was to purchase 100 KHS of Scrypt mining hashrate about 2 days ago as apart of our test of the service and so far we are satisfied with the results. Even though we are seeing some things that still need some more work, mostly polishing the user interface and adding some useful extra functionality of the service itself. Things however do seem very promising and the hashrate prices are better than on some other cloud mining services with trading exchanges with good potential for growth. Bit Mining is paying out your earnings on a 24 hour basis and we have already received two payments from our purchased hashrate, so we can either withdraw them or reinvest them into more hashrate, there is even an option to set a percentage of your earning to be automatically reinvested into hashrate (something that is missing in most other cloud mining services).

Another interesting thing about the Bit Mining cloud mining service is that it also has its own pools that you can point your actual BTC and LTC mining hardware to mine at the same pool where you have the purchased cloud mining hashrate. You can actually mine at the LTC and BTC mining pools even if you don’t have any cloud mining hashrate and to invest your earnings into some cloud mining hashrate or just withdraw the earnings. The service has a 0% fee P2Pool node with a special feature – paying miners not based upon how many blocks are found, but based upon only how much work each miner does for both BTC and LTC mining. So if you mine with 100 GH for 1 day, you will receive exactly 0.013180047005724 BTC at the end of the day at the current difficulty. And if you mine with 100 KS for 1 day, you will receive exactly 0.027659086465469 LTC at the end of the day at the current difficulty. This makes it easier to do the numbers and see how much it will take to get a full return of your investment into cloud mining hashrate, though you will still have to take into account the variation of the difficulty increasing over time. If you are wondering what are the fees for the cloud mining hashrate, there is 6% SHA256 maintenance fee and 10% SCRYPT maintenance fee. There is also a 1% sale fee, which will be deducted from the earnings from your sale of hashrate on the marketplace, no fee when buying KHS or GHS.

So far what we could recommend is if you are interested to try out the service by purchasing a small amount of hashrate and see how things go for a few days and then decide to invest into more or not, this is exactly what we are doing already with out 100 KHS purchased Scrypt mining hashrate. For now we are more interested in the LTC cloud mining functionality of the service, but we are probably going to invest a bit in the BTC mining hashrate even though PBmining is our preferred choice for the moment for Bitcoin cloud mining where we have already uppded our cloud mining hashrate to 10 GHS for the next week of testing the service from the initial 1 GHS that we started with for the first week of testing the service. But it is up to you to decide to check out only the Scrypt cloud mining or the SHA-256 cloud mining hashrate as well that the service offers.

– For more information about the Bit Mining BTC/LTC cloud mining service…

Checking Out the PCI Express x1-x16 USB 3.0 Extenders

1, Mar 2014

pci-express-x1-x16-usb-30-extender

When we are talking about GPU-based mining rigs for crypto currencies it is common for PCI-E extenders (or risers) to be used in order to be able to put more video cards on a single motherboard and use not only the available PCI Express x16 slots, but the smaller x1, x4 and x8 as well that were originally not designed to be used by video cards. You would normally not want to use these smaller slots with less PCI-E lanes for video cards that will be used for gaming for example, but they are more than enough for mining. Up until recently you would use a x1 to x1 or x1 to x16 PCI-E raiser (Extended) with a short ribbon cable in order to utilize the smaller PCI Express slots for mining. But there is new and very interesting alternative available now – PCI Express x1-x16 USB 3.0 extenders.

We have picked up a few of these new extenders to try them out as they look better designed and built as compared to the ones using ribbon cables, no to mention that the newer USB-based ones also offer some good advantages. Now, before continuing with out experience and impressions we should make something clear – these extenders only use USB 3.0 cable for data transfer they still connect to PCI-Express slot on the motherboard one one end and have a PCI-E slot that you put the video card in on the other end. They use USB 3.0 cable for data transfer as it is a reliable solution for high-speed data transfer and with good quality cable that is shielded you can easily get 50, 60 or even 100 cm length of the cable without problems. We have picked up extenders that do come with a long 1 meter cable and they work problem free and allow you to place the video cards further away from the motherboard and other cards, so that you can get better airflow and cooling.

Aside from the additional length that can easily be up to 1 meter (up to 20-25 cm for ribbon cable extenders) these extenders are also powered, meaning that your motherboard will not need to provide any power over the PCI-E slot to the video card – all the power coming from the PCI-E slot of the extender is supplied by an external molex power connector, so you can safely use even video cards that do not have additional PCI-E power connector on their boards without worrying that you can overload your motherboard that is not designed to supply so much power over the PCI-E bus for multiple video cards. We have tested these extenders with cards with both no external PCI-E power as well as with models that do have additional power connector and they all worked just fine. Also tested with both Nvidia and AMD graphics processors and no issues with both types, though you should note that using Nvidia GPU such as the GeForce GTX 750 Ti with CUDAminer you will be getting a bit lower performance when using an extender (any kind of PCI-E extender). AMD graphics do not seem to have this problem, so the most likely reason is in the fact that you are using less PCI-E lanes for the video card and although AMD with OpenCL does not seem to have a problem, Nvidia with CUDA appears to provide a slightly lower performance.

So if you are using a GeForce GTX 750 Ti with stock frequencies and are getting 255 KHS for Scrypt mining with the card directly plugged in the motherboard, if you put it on an x1 PCI-E extender you might get slightly lower performance in the 240-245 KHS range. The same goes for results with the card overclocked, from about 300 KHS on motherboard you can expect 285-290 KHS when you are using a x1 PCI-E extender. Unfortunately to avoid that you need to use full x16 PCI-E slots and/or extenders and that could limit significantly the number of cards you can install on a single motherboard.

In short, we are really satisfied with the PCI Express x1-x16 USB 3.0 Extenders. They offer better build quality and reliability as compared to ribbon cable extenders. You also get more freedom for placement of the video cards thanks to the longer cables for better airflow and cooling performance. The slight drop in performance when using Nvidia-based graphics cards for mining with the extenders is to be expected, but might be resolved in future updates for CUDAminer for example.


top