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Octominer B8PLUS 8 PCIe Slot Mining Motherboards

27, Jan 2018

There is an interesting new Chinese company called Octominer that is apparently focusing on the GPU mining market by offering a specialized mining motherboard for 8 GPU mining rigs. The Octominer B8PLUS motherboard has 8x full size PCI-E slots spaced decently enough to eliminate the need to use PCI-E riser boards. The manufacturer suggests that the motherboard is suitable for any Nvidia or AMD GPU that is 4.5 cm or thinner, so all 2 slot thickness cards should fit, 2.5 slot cards might also fit, but very tightly and there could be some trouble with cooling them. Furthermore the motherboard comes with integrated Intel mobile CPU with built-in graphics. The motherboards uses SO-DIMM DDR4 memory and comes with M-SATA slot for an SSD memory and a sATA interface for an external HDD or SSD drive that you need to buy separately of course.

Octominer B8PLUS Specifications:
– Motherboard: support 8x PCI-E 16x slots for GPUs
– GPU: Embedded 6th gen Intel Celeron Processor 3855U
– CPU cooler integrated on the board
– Supported GPUs: 8pcs AMD470/480/570/580 or Nvidia P106/P104/1060/1070/1070TI/1080/1080TI
– Memory: Support SO-DIMM DDR4 up to 8GB RAM (Laptop memory)
– Ports: 2x USB, 1x VGA, 1x RJ45 Network
– Power: Support server style power supply and ATX PSU
– Board dimensions: 46 X 18 cm

The price of the integrated 8x GPU mining motherboard from Octominer is currently USD $199 with shipping from China (shipping and import taxes and VAT not included). Shipping is with DHL Express and should take about 5-7 days according to the website and cost you $25 USD for most locations, though the price may vary for some regions. Octominer is currently accepting pre-orders for the motherboards with deliveries expected to start shipping by the end of January or the beginning of February, so not much wait, though shipping may not be immediately after you order.

– For more information about the Octominer B8PLUS 8 PCIe Slot Mining Motherboards…

Securing Yourself Against the Meltdown and Spectre Exploits

11, Jan 2018

The recent public announcement of the Meltdown and Spectre critical vulnerabilities in modern processors that could leak passwords and sensitive data are really something that you might want to pay attention to if you are into crypto. Since these hardware vulnerabilities allow programs to steal data which is currently processed on the computer they could potentially lead to passwords and/or other secure data getting leaked and this poses risk for crypto currencies getting stolen from your computer or mobile device. The good news is that various companies have already released operating system and device patches that try to fix or mitigate the potential problems that might be caused by the exploits. So what you should make sure is to update your computer and mobile devices with the latest security patches in order to at least minimize the chances of getting affected by the Meltdown or Spectre exploits.

Meltdown
Meltdown breaks the most fundamental isolation between user applications and the operating system. This attack allows a program to access the memory, and thus also the secrets, of other programs and the operating system. If your computer has a vulnerable processor and runs an unpatched operating system, it is not safe to work with sensitive information without the chance of leaking the information.

Spectre
Spectre breaks the isolation between different applications. It allows an attacker to trick error-free programs, which follow best practices, into leaking their secrets. In fact, the safety checks of said best practices actually increase the attack surface and may make applications more susceptible to Spectre. Spectre is harder to exploit than Meltdown, but it is also harder to mitigate.

Patching and securing your GPU mining rigs might not be that much of a priority, but computers or mobile devices where you use or store local crypto wallets or passwords for accessing online wallets and/or other crypto related services such as exchanges must be your first priority. Below you can find a link to security information, updates and patches for fixing the problem or at least mitigating the possibility to be exploited using the Meltdown or Spectre, so make sure you check different software and hardware manufacturers recommend that you do and install and patches and updates that they recommend.

– For more details in the form of official information/security advisories of involved/affected companies and fixes…

New ccMiner tpruvot fork v2.2.3 With Polytimos and KeccakC support

5, Dec 2017

There is a new official release of tpruvot’s ccMiner fork version 2.2.3 available (source) with new algorithms supported and additional improvements. The latest version brings support for Polytimos algorithm as well as support for the KeccakC algorithm, along with an optimized Keccak support for SM5+ GPUs, based on alexis78 improvements. The official Windows binaries for the new version are compiled for SM 3 Nvidia GPUs and CUDA 9 only (require driver version 384.xx or newer) and are available in 32-bit as well as 64-bit version.

After a quick test of the KeccakC support we can suggest that you might want to try increasing the intensity over the default value for your GPU for some improvements in terms of performance, though even then there is still a faster fork of ccMiner with KeccakC support. If you are interested in mining CreativeCoin (CREA) that uses the KeccakC algorithm with best performance you might want to check out this ccMiner fork for optimal performance.

– To download the latest ccMiner tpruvot fork v2.2.3 Windows binaries (x86/x64)…


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