Up to 75 C is an acceptable temperature to keep the cards at, but you are going to wear out the fans very quickly keeping them at 100%. Better to buy a $20 box fan and place it on top of the cards. It creates air flow around the cards and lowers the temp, so you don't need to run the card fans very high.

If ETH hits $3000, it's because the USD has become the equivelant of the Mexican Peso. ETH has close to 100 billion tokens in circulation compared to a max of 21 million for BTC.

Even on ZEC you are looking at an ROI of 10+ months just to pay off the cards. I would rather put together RX 570 rigs at 1/2 the cost and an ROI of 8 months.

Thanks for confirming how stupid it is to spend $9000+ just on GPU's to get 460 MH/s when you could spend less than half of that on 16 RX 580's to get the same amount of hash and better dual mining performance to boot.

Based on what, they forked a coin? It took BTC 8 years, an extensive use case infastructure and proven development to get where BTC is now. You're not going to steal that just by creating a fork. Whether BCC can get there remains to be seen, but it won't be any time soon.

The current marketcap is an artificial one based on the airdrop to all BTC holders prior to the fork. You just can't create 6 Billion in value just by forking a coin. Large BTC exchanges, like Coinbase not supporting the fork reduce the true marketcap significantly.

Nah, GPU mining isn't going away anytime soon. AMD just wants to save face with gamers by playing down the fact mining is the reason there are no AMD GPU's available for over two months now and GPU prices are jacked up.

At least publicly AMD is saying they don't see mining as a long-term growth driver.


https://www.coindesk.com/amd-cryptocurrency-mining-isnt-a-long-term-growth-driver/

"some elevated demand"? Talk about an understatement. LOL

The initial blocks were mined too slowly due to the BTC difficulty carrying over for the BCC chain to retarget after just 6 blocks. I think it will take 12 hours since the first block for a BCC diff retarget to activate. A 20% diff retarget should kick in after 12 blocks.

https://www.reddit.com/r/btc/comments/6qswyh/ive_been_seeing_a_lot_of_misunderstanding_about/

What I did was backup my original Bitcoin Core data directory and create a new folder where the Bitcoin Core data directory is located, named Bitcoin_BCC for the BCC ABC client. Then open the BCC ABC client with a shortcut that has the -datadir parameter pointing to the location of the Bitcoin_BCC folder you created. Otherwise the BCC ABC client will default to using the Bitcoin Core data directory and it will overwrite the Bitcoin Core client files.

When you are ready to claim your BCC coins, open the debug console on Bitcoin Core the wallet and export the private key of the BTC address with the balance you want to import in to the BCC ABC wallet:


Close the Bitcoin Core wallet, open the BCC ABC wallet and import the key you just exported with:


The wallet will rescan and import the balance from the BTC address to a BCC address.

To safeguard your original BTC coins in the Bitcoin Core client, transfer the balance to a new wallet. Rename the wallet.dat in the Bitcoin Core data directory to wallet.dat.old and then open the Bitcoin Core client to create a new wallet. Copy a BTC address from the new wallet and close it, then rename the newly created wallet.dat to wallet.dat.new. Rename your old wallet.dat.old to wallet.dat again, open the Bitcoin Core client and transfer the BTC funds from the old wallet to the new wallet address you copied.

Praise the Bitcoin Jesus. Fork complete! Three more blocks before the difficulty readjust!

Open the debug console on Bitcoin Core the wallet and export the private key of the BTC address with the balance you want to import in to the BCC ABC wallet:


Close the Bitcoin Core wallet, open the BCC ABC wallet and import the key you just exported with:


The wallet will rescan and import the balance from the BTC address to a BCC address.

Dual mining ETH is still the most profitable option for AMD cards, close to $2 per RX 480/580 card after power currently. Once the ICE AGE ramp up makes ETH mining unprofitable for most people by the end of this month, dual mining UBIQ is a good alternative if you want to accumulate more coins to speculate on future appreciation.

The driver patch for the Polaris epoch hashdrop will be out this week according to Claymore.

https://bitcointalk.org/index.php?topic=1433925.msg20491019#msg20491019

Only a fool would send this idiot anything.

It depends on what you plan to mine and the condition of the used card. AMD RX series cards are better for Ethash coins and dual mining. The 1060's are more efficient for Equihash, but the RX series still hashes faster.

New type of Sapphire Rx 570 8GB mining card available on Newegg, 1 per customer:

SAPPHIRE Radeon RX 570 11266-24-21G 8GB GDDR5 PCI-E Mining Quad (UEFI) Video Card - $259.99

https://www.newegg.com/Product/Product.aspx?Item=N82E16814202298

Apparently these cards have the standard two-year warranty for Sapphire cards, according to Newegg.

Put a $20 box fan on the rig. It will lower the temperature of all the GPU's, so you don't need to run the card fans as high. Also cheaper and easier to replace. A box fan will draw about ~75 W, so you need to take than in consideration for your total power draw. I have one box fan on low covering a total of 10 cards on two rigs and all my cards fans are at less 71 Celsius and 70% fan speed. The fans on the cards directly in front of the box fan run at less than 50%

A number of factors caused GPU mining to become unprofitable in the second half of 2014. You had the development of ASIC's for Scrypt and X11, which were the majority of coins being released at that time. There was the mega pool development that mined the most profitable coins, only to dump them for BTC, suppressing the price for GPU miners. The market was also much smaller back then, so you also had people with lots of money manipulating prices. If all that wasn't bad enough, you had the BTC price crash to $200, which drag all other coins with it.

Unlike GPU's, ASIC's are developed to do a single task, which is why they are so efficient. It's easier to create ASIC's for algorithms that are not memory intensive like SHA-256 or Scrypt. ASICS for other algorithms are much harder to produce and require a lot of development costs. There is also the risk that once it's determeined that an ASIC has been produced, the coin devlopers could change that algorithm parameters, rendering it useless. Similar to what Vertcoin did when they switched from n-scrypt to Lyre2E.

Cryptomined got all 13 to work with Red Devil RX 580 8GB cards on smOS, 300 MH/s with stock settings and no Bios mod. I'm pretty sure you could add two PCI-E 1x to 3 extender cards to get 15 to work on the board, like Angry Chicken's RX 580 11 card 325 MH/s on the Asus Prime Z270-A video.

https://www.youtube.com/watch?v=beCjF9taFdU

I meant R7 240 4GB with DDR3.

http://www.bestbuy.com/site/xfx-core-edition-amd-radeon-r7-240-4gb-ddr3-pci-express-3-0-graphics-card/5315800.p