1. C

    Disable SMT with Threadripper Pro on ASUS WS WRX80E-SAGE?

    Hi, does anyone know how to disable Simultaneous Multithreading (SMT), AMD's equivalent of HyperThreading, on the ASUS WS WRX80E-SAGE board? No mention of it in the manual or in Google searches. My software is not NUMA-aware and I think performance would benefit from disabling SMT.
  2. postcd

    Likelyhood of damaging computer motherboard by a damaged/shorted USB peripheral?

    Hello, i am having several computers and one USB 3.0 hub (has its own optional power supply) and this hub PCB (printed circuit board) may have short circuit or be somehow electicaly damaged. How likely it is that when i connect this hub to the USB port of the computer and connect USB flash...
  3. Zarathustra[H]

    Google Disables SMT in ChromeOS due to Intel Bugs

    After OpenBSD disabled SMT in 6.4 last year, Google has now followed suit. Apple, Microsoft, Red Hat, and Xen have all also to one extent or another recommended that users might want to disable the feature for the sake of security, in response to MDS. Is this the beginning of the end of the...
  4. cageymaru

    Gigabyte Factory Tour Shows Motherboard Manufacturing from Start-To-Finish

    Gamers Nexus recently took a tour of the Gigabyte factory located on Nanping Road in Taiwan. At this location, Gigabyte manufacturers both video cards and motherboards. Although most of the SMT factory is automated, some of the components and wires must be installed by hand. It takes 40 - 50...
  5. AlphaAtlas

    ARM Introduces Automotive Processor With Simultaneous Multithreading

    Today, ARM announced the Cortex A65AE, ARM's first processor with support for simultaneous multithreading. Like the A76AE that came before it, the A65AE also supports ARM's Split-Lock technology, which allows a pair of cores to execute the same instructions and compare output for extra...
  6. cageymaru

    Intel CPUs Are Vulnerable to New PortSmash Side-Channel Exploit

    PortSmash is a new hardware level side channel exploit that leaks encrypted data from a computer's memory or CPU. Scientists can use multiple ways to record and analyze the data to break encryption algorithms and recover the CPU's data. Researchers from Tampere University of Technology in...
  7. cageymaru

    The Performance Cost of Security Mitigation on Linux 4.19

    Michael Larabel from Phoronix has run three Intel Xeon and two AMD EPYC systems through a battery of testing including a virtual machine to determine the performance cost that security mitigation patches such as Spectre, Meltdown, and Foreshadow have had on the platforms under Linux. The Linux...
  8. cageymaru

    OpenBSD Co-Founder Drops Hyper-Threading Support to Mitigate Foreshadow Attacks

    Theo de Raadt, an OpenBSD co-founder has officially announced that the open-source operating system will not utilize Hyper-threading for Intel processors. He complains that Intel isn't telling them about upcoming discovered threats and the steps that an OS developer needs to take to mitigate...
  9. cageymaru

    Intel Has Disclosed New Security Flaws that Affect SGX and Virtualization

    Intel has disclosed a new set of security flaws collectively called the L1 Terminal Fault (L1TF). These flaws were discovered in conjunction with researchers at KU Leuven University and other universities. The researchers call their discoveries Foreshadow and Foreshadow - Next Generation (NG)...
  10. FrgMstr

    AMD Speaks Ryzen - You Should Give a Listen

    Robert Hallock, Technology Evangelist at AMD, has made a blog post over on the AMD Community page entitled, "AMD Ryzen™ Community Update." First and foremost, AMD puts the "Windows Scheduler argument" to bed. We have investigated reports alleging incorrect thread scheduling on the AMD Ryzen™...