Linux Meltdown/Spectre patch destroys mining hashrates, here is the fix

If you rebooted your linux-based mining rig at some point in the last couple days, you may have noticed that your mining hashrate was drastically lower after your system restarted. What happened?

Turns out a kernal update designed to patch the Meltdown & Spectre vulnerabilities present in Intel CPUs was deployed on January 9th, and it had the unintended consequence of negatively impacting GPU mining speed.

Thankfully, you can manually remove the update for now. Just follow these instructions and you should be back to normal.

Thanks to the many readers that wrote in and made me aware of the issue!

New year, new cryptocurrency predictions

Happy (belated) New Year! I intended to get this post up earlier, but I’ve been under the weather lately.

Now that we’re about a week into 2018, it’s probably a good time to talk about what’s in store for cryptocurrency as this decade winds down. I see daily questions from readers about my opinions on what the future holds, and I typically don’t respond (especially regarding price predictions) because I just don’t know what’s going to happen tomorrow. With that said, I do think it’d be fun to take a few educated guesses regarding major cryptocurrency developments that’ll probably happen in 2018-2019.

Read on for a look into CryptoBadger’s crystal ball!

Happy Holidays!

Just wanted to take a minute and wish everyone a happy holiday season!

I’ve heard from quite a few of you over the past couple months, including some folks that started following my blog back in 2013. A few of you have indicated that you’re now crypto-millionaires, which is incredible. While I haven’t been able to respond to everyone individually, it’s been really amazing hearing all of your stories.

Hope everyone has an enjoyable holiday—look for my 2018 cryptocurrency predictions at some point in the coming week!

My Ethereum Mining Guide has been updated

Just a quick note that I finally sat down and updated the hardware, Linux, and Windows sections of my Ethereum mining guide today, bringing everything up-to-date with current best practices.

The Linux setup guide especially deserves your attention if you set up your own rig in the recent past and have noticed a slow degradation in speed over time as the Ethereum DAG file has grown in size. The guide now uses the recently-released (for Linux anyway) AMD blockchain compute drivers, along with the latest version of Claymore’s miner, which should bring your rig back up to its original speed (my own quad GPU rig had degraded down to ~80 MH/s since May, after installation I’m back up to ~110 MH/sec).

Bitcoin: it’s over 9000 (dollars)!

With Bitcoin’s price currently hovering around $9,400 on Coinbase, it’s time for the obligatory “it’s over 9000” post. Bitcoin’s value has been increasing steadily over the past 48 hours, hitting new all-time highs nearly hourly—and it doesn’t look like it’s slowing down. Let’s all pause and remember that one bitcoin cost a mere ~$700 just one year ago!

The rapid recent price inflation is probably due to the “Thanksgiving effect”. Holidays are a prime opportunity for tech-saavy family members to extol the virtues of cryptocurrency to less technology-literate relatives. I’d wager that quite a few Thanksgiving dinner discussions revolved around Bitcoin, which caused masses of newly-exposed people to invest (Coinbase reportedly added over 100,000 new users on Thanksgiving).

It’s not just Bitcoin that’s up—cryptocurrency in general has seen double-digit gains over the past week. Ethereum and Litecoin are actually both up more than Bitcoin, at ~30% and ~20% respectively.

I’ve been telling people for months that 2018 will be the year of the five-figure Bitcoin. It looks like I was probably wrong—at this rate, we’re going to see Bitcoin top $10,000 before 2017 is over.

Bitcoin’s SegWit2x fork postponed indefinitely

With only a week to go before its planned implementation, yesterday’s announcement that Bitcoin’s planned SegWit2x fork is being shelved indefinitely came as somewhat of a surprise.

Ultimately this is good news. Bitcoin is already confusing enough to the average individual without another fork caused by lack of community consensus added to the mix—especially in the wake of the (very) recent Bitcoin Cash and Bitcoin Gold forks. Many view these recent forks as nothing more than scams designed to create wealth “out of thin air” by creating duplicate coins, and killing SegWit2x instead of further fracturing Bitcoin sends the right message.

The way that the SegWit2x saga unfolded still leaves a bad taste in my mouth, however. I suspect that the six individuals responsible for SegWit2x and its cancellation became quite a bit wealthier collectively over the past 24 hours. Judging from cryptocurrency pricing trends over the past couple weeks, quite a few investors have been shifting their funds from altcoins to BTC in anticipation of their “free” SegWit2x coins on the fork date. In the hours following the announcement that SegWit2x was dead, BTC dropped about 10%—and predictably, altcoins started rising steadily as people began converting their BTC back into other coins. Timing the cancellation announcement so close to the planned implementation (with Bitcoin’s price at an all-time high) probably made some insiders rich at the expense of the masses (like this unfortunate soul). Welcome to unregulated markets!

Ethereum’s Byzantium hard fork is imminent

Just a quick heads up that the Ethereum network will experience a planned hard fork at some point early tomorrow. A few of you have emailed me with questions about what you need to do to prepare, and the short answer is that no action is immediately necessary if you’re primarily worried about the continued operation of your miners. Your rigs will continue mining after the fork, and your mining pool will continue payouts to your wallet address (most large pools, including ethermine and nanopool, have already announced readiness for the fork).

You will need to make sure to update your wallet software before creating new transactions (e.g.: sending your ETH to another address) on the Ethereum network post-fork. You don’t need to do this immediately—just make sure that you update before sending coins from your wallet. The latest release of Mist (the official Ethereum client, and the wallet I generally recommend) can be found here. If you use another wallet, make sure that you grab the latest update from your wallet provider.

If you followed my mining guide and installed geth to generate your initial wallet address, there is no need to update it unless you want to use geth to perform manual transactions (which I really don’t recommend!).

Burger King creates their own “Whoppercoin” cryptocurrency in Russia

If you’re looking for evidence that pretty much everyone is jumping onto the cryptocurrency bandwagon, look no further—Burger Kings in Russia are now offering customers promotional “Whoppercoins” with the purchase of every Whopper. Yes, really.

The Whoppercoin tokens were reportedly issued using the Waves Platform, and the value of each token isn’t yet clear—though speculation indicates that Whoppercoins will eventually be redeemable at Burger King restaurants for food.

Russian Burger Kings are also slated to start accepting Bitcoin as a payment method this year.

Amazon Alexa: now with more CryptoBadger!

If you have an Amazon Echo or other Alexa-enabled device, you can now use it to ask CryptoBadger to fetch the latest cryptocurrency prices. Just say “Alexa, enable CryptoBadger skill” to install my simple plugin, and then you can say things like “Alexa, ask CryptoBadger: what’s the current Bitcoin price?” Prices come from Coinbase, and Ethereum and Litecoin are also supported.

This was my Sunday coding project, and the skill isn’t especially unique or robust—I’m a fan of Amazon’s Alexa and simply wanted to see what was involved in creating a skill. If there is interest, I may expand it to support features like historical prices and wallet balances—feel free to leave ideas and/or feedback in the comments below!

If you don’t already have an Echo, I absolutely recommend one—they’re fantastic devices. Amazon currently has them on sale for $80 off the normal price. The smaller (& less expensive) Echo Dot is also great if you plan to use your own speakers.

Asus to release mining motherboard with 19 PCIe slots

Asus has announced plans to release a motherboard aimed squarely at cryptocurrency miners. The new mainboard will be dubbed the B250 Expert Mining and features a whopping 19 PCIe slots. In addition to theoretical support for up to 19 GPUs, the board features a unique power setup and diagnostic tools designed to make troubleshooting initial setup easier. Sounds like ASRock’s H110 Pro BTC+ board will have a short reign as the top pick for rig builds looking to maximize GPU count.

Anandtech posted an preview of the upcoming board this morning; head over there for some more details and photos.

Asus hasn’t yet specified pricing or a release date, but are expected to shortly.