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    Home Unlabelled Hardware support: [Gamers Nexus] How AMD Sabotages Itself & Both Sides of the Story (B450 / B550 Chipsets & Zen 3 BIOS)

    Hardware support: [Gamers Nexus] How AMD Sabotages Itself & Both Sides of the Story (B450 / B550 Chipsets & Zen 3 BIOS)

    May 12, 2020

    Hardware support: [Gamers Nexus] How AMD Sabotages Itself & Both Sides of the Story (B450 / B550 Chipsets & Zen 3 BIOS)

    [Gamers Nexus] How AMD Sabotages Itself & Both Sides of the Story (B450 / B550 Chipsets & Zen 3 BIOS)

    Posted: 11 May 2020 11:56 PM PDT

    $2,400 Laptop From 1994: Packard Bell Statesman

    Posted: 11 May 2020 11:25 AM PDT

    [Hardware Unboxed] AMD Does An Intel, Axes Zen 3 on 400-Series Motherboards, Our Thoughts

    Posted: 11 May 2020 04:57 AM PDT

    Power Delivery in a Modern Processor

    Posted: 12 May 2020 12:07 AM PDT

    Understanding Technology Nodes (14 nm, 10nm, 7nm, etc.)

    Posted: 11 May 2020 01:32 PM PDT

    Consumers have been bombarded with these marketing buzz terms for as long as I remember when it comes to announcing new lithography processes for microprocessors.

    These terms (example: "7 nm") are simply a commercial name for a generation of a certain size and its technology, and does not represent any geometry of the transistor.

    So I tried to "compare" the different transistor technologies using their measured or estimated densities, to acquire a physical understanding of their actual size. Mind you, this is by no means a scientific or reliable method, I've solely carried it down as means of comparison to help me better understand the marketing buzz, from a more coherent physical perspective.

    Data Source: Wikichip

    Methodology:

    • Assume all transistors are square and equal in size
    • No space exists between transistors, they form a gap-less lattice

    As such, given the density of each node technology in Millions of Transistors per Square Milometer (MTr/mm2), we can calculate the "length" of the side of each transistor to arrive at the following:

    MTr/mm2 Length [nm]
    TSMC 5nm 171.3 76
    TSMC 7nm 91.2 105
    TSMC 10nm 51.82 139
    Intel 7 nm 237 65
    Intel 10 nm 100.76 100
    Intel 14 nm 37.22 164
    Samsung 5nm 126.89 89
    Samsung 6nm 112.79 94
    Samsung 7nm 95.08 103
    Samsung 10nm 51.82 139

    Visualization

    https://i.imgur.com/xfaTHeH.png

    My take-ways (most if not all of them are known already):

    • Intel tried to undergo a massive leap from 14nm to 10nm
    • Intel 10nm process is denser than TSMC's 7nm
    • Both Intel and TSMC are making good progress with each iteration, Samsung, however, has relatively flattened out
    • Even if the actual size of the transistor is one-half or one-third of the measurements above, we're still no-where near hitting atomic level structures and are rather hindered by quantum tunneling and undesired quantum effects at said tiny scale as we're approaching sub 100-nm measurements.
    submitted by /u/pisapfa
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    AMD adds new tech to it's GPUOpen initiative.

    Posted: 12 May 2020 12:14 AM PDT

    (Anandtech) Qualcomm Announces Snapdragon 768G: Higher-bin 765 up to 2.8GHz

    Posted: 11 May 2020 04:08 PM PDT

    Intel's new Core i9-10900K runs at over 90C, even with liquid cooling

    Posted: 12 May 2020 01:50 AM PDT

    Laptops are not ergonomically sound

    Posted: 11 May 2020 08:17 AM PDT

    With this post, I want to talk about an issue that I rarely see discussed.

     

    I like laptops as much as anyone else, but their design have an ergonomic flaw:

     

    When you are using a laptop sitting flat on a table with yourself sitting on a chair, the ergonomic position for looking at the panel is not correct, causing neck and (possibly) back pain as you have to look down the screen. This is more pronounced as the screen size is smaller and the lower bezel is smaller (which is the trend). I believe many people use their laptop like this for hours. This is really a disaster for people's neck, whether they realize it or not. Ideally you want to look at a screen with the eye level aligned with the top of the screen or slightly below. The last thing you want it to have to always look down.

     

    This can of course be alleviated using a laptop stand or an external monitor+keyboard but this is not always possible and when using a laptop stand you almost always need an external keyboard to not shift this ergonomic issue to your wrists (by using the laptop's keyboard at a pronounced angle).

     

    So I'm a bit baffled why no manufacturer has at least tried to tackle this issue, with a mechanism that would allow to easily propel the laptop's panel at the proper ergonomic position. This is not an easy problem to solve as it would require a panel able to slide vertically on rails or some other elaborate hinge mechanism. Still I'm confident that some clever solution could be found that is not too weighty. The only example I have seen of something in that direction is that Intel dual screen laptop prototype from CES 2019, with no news about some manufacturer adopting such design since. I also wish for a design with the panel being detachable, using USB-C when detached.

     

    To sum up, it is a bit sad that the only solutions to have a laptop's panel at the correct ergonomic position is:

    • external monitor + external keyboard
    • elevate the laptop and use an external keyboard (example)
    • elevate the laptop panel, using its keyboard at an angle. But it is sub-optimal and not ergonomic for the wrists
    • with a 2-in-1 laptop, put it in tent mode and put it on some support to elevate it (books, a box) and use an external keyboard

     

    Unless there are new designs, my next laptop will probably be a 2-in-1 for the sole reason that it makes it easy to have the screen at the proper position.

     

    Thoughts ?

    submitted by /u/bubbleguuum
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    Thunderbolt security vulnerability

    Posted: 11 May 2020 05:42 AM PDT

    Curious-looking AMD Ryzen 7 Extreme Edition with 4.30 GHz Boost Hits the Radar

    Posted: 11 May 2020 12:16 PM PDT
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