Computers and studio gear http://personal-view.com/talks/categories/computers-and-studio-gear/feed.rss Tue, 23 Jul 19 00:45:42 -0600 Computers and studio gear en-CA Capitalism: Planning and DRAM http://personal-view.com/talks/discussion/17041/capitalism-planning-and-dram Mon, 29 May 2017 08:04:14 -0600 Vitaliy_Kiselev 17041@/talks/discussions image

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Capitalism is very efficient, somewhere. DRAM prices (same as NAND) is kind of mad, due to production/consumption issues and cartel agreements that followed.

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Motherboard VRM Power Guide http://personal-view.com/talks/discussion/21417/motherboard-vrm-power-guide Mon, 28 Jan 2019 12:48:40 -0700 Vitaliy_Kiselev 21417@/talks/discussions From sinhardware, copied from WBMachine

To begin talking about voltage regulators, and since this article is aimed at those without strong engineering backgrounds, we first will need to define certain terms which pertain to this article. The terms and definitions explain every part of the VRM and really will help, so please glance over them, because you will be wondering what the difference between the high-side and low-side MOSFETs are, and you need to read the definition of each term for things to make sense. You are basically getting a crash course in power supply design at a level that anyone who is interested can understand. So before the definitions I will give a quick analogy of how a motherboard VRM works.

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The water faucet analogy is slightly imperfect, however valid in many ways. Think about the process it takes for getting water out of your facet; the water has to be clean, at a decent pressure, and it needs to come in any amount you need it to. The power will be the water in this analogy. To produce the water in your faucet, water has to be controlled from a large source, cleaned, and then put into pipes and pressurized to reach your home. A CPU needs power like we need water, and the source for us might be a large lake, but from the CPU the source is your computer’s main AC/DC PSU(power supply). The water for us is then routed to a water treatment center, and that is basically what a VRM does. The water then needs to be pressurized and cleaned, that is basically what the phases do. The MOSFETs act like pumps, and the drivers are their controlling the pumps (MOSFETs) like valves (drivers). The inductors then store and clean the water like a purification tank, then all the purification tanks (inductors) send their water straight to the holding tank(capacitors) or straight to the city to people’s faucets. The PWM is the main control and the drivers (valves) are controlled by the PWM.

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VRM: Voltage regulator module, this term refers to anything from a linear regulator to a synchronous multiphase buck converter, which is a switch mode power supply, which is what your motherboard's CPU VRM is. People also call the VRM the PWM, which isn't correct, PWM refers to a modulation scheme or a chip, not the entire circuit, however since PWM has a catchy ring to it people still refer to the VRM as the PWM. Some others may also call the VRM a VR or a VRC(voltage regulator circuit).

PWM: Pulse Width Modulation or Modulator, this is a scheme where phases are turned on and off in a pulse like manner, it can also refer to the control chip of the VRM. The PWM control chip does everything from turn on phases to monitoring different characteristics of the VRM, the PWM is the only part of a VRM that could be considered digital in nature, however it is possible to design the PWM with analog mechanisms(which is quite easy and popular).

Duty Cycle: The duty cycle is a ratio of Vout divided by Vin, so if there is a 12v input and a 1.2v output then the duty cycle is 0.1 or 10%, the duty cycle determines how long the high-side MOSFET needs to be on, and in this case it is 10% of the time to get 1.2v output. The duty cycle determines how often the high-side switches while the switching frequency determines how often it switches.

Switching frequency: This is the frequency at which the VRM switches or pulses. Increased switching frequency means that the current will move more quickly throughout the VRM, however while increased switching frequency helps with transient response and helps to decrease ripple, it also reduces efficiency and increases temperature. With a low duty cycle the switching frequency is also limited. The switching frequency determines how often the phases switch or pulse. So if the switching frequency is 300khz then the phases pulse 300,000 times per second or pulses once every 3.33 microseconds(usec) or 3.33e-6 seconds. Switching frequency also needs to be constant along phases, so if you double the phase count you should also cut the frequency in half for each of the doubled phases, if you don't do this, then the entire effective switching frequency of the entire VRM can double and lead to issues unless already accounted for.  

MOSFET: Metal Oxide Semiconductor Field Effect Transistor, basically a simple switch which can turn on (connect the source and drain) if a voltage is supplied to the gate. There are usually 3 points to a MOSFET, the gate which is used to control the MOSFET, the drain which is where the current flows to, and the source which is connected to the source of the current. A MOSFET is basically a switch/electronic valve. This is easy to think about, when a certain voltage is supplied to the gate, the source and drain are then connected for current to flow freely. By the way FET is MOSFET for short.

High-Side MOSFET: This MOSFET has its source connected to an input, usually 12v in modern VRMs, and its drain is connected to the inductor / source of the low-side MOSFET. The driver controls its gate. The high-side MOSFET's switching losses are very high as it will be pulsed very quickly. When a phase is ON, then the high-side MOSFET is also on. The duty cycle determines how long the high-side MOSFET stays on. The high-side MOSFET limits the current output of the phase. High-side MOSFET is also called the Control MOSFET.

Low-Side MOSFET: This MOSFET has its source at the inductor / the high-side's drain, the low-side's drain is connected to the ground. This MOSFET is in charge of turning on when the phase is off, and it completes the circuit and allows the inductor to discharge all of its current. The conduction losses of the low-side MOSFET are very important as this MOSFET will stay on longer than the high-side. The low-side MOSFET is also sometimes called the synchronous (or sync) MOSFET.

Inductor: Also known as choke, this is an energy storage/filter component. It is made up of a thick coiled wire either surrounding and/or surrounded by some metal casing. This is probably the most recognizable part of a VRM, as it is the metal cube each phase has. The inductor stores energy in a magnetic field. The inductor is the ultimate limiter of the output current of each phase, the saturation current is the maximum current that the inductor can sustain. 

Capacitor: Most people know what a capacitor is; it is a sheet of thin metal put up right next to another sheet with a di-electric in between, then the sheets are wound into a circle and they are cased in metal. The capacitor stores energy in an electric field opposed to the magnetic field the inductor uses. Electric and magnetic fields are related by the way.

Driver: In a VRM a driver isn't the dude who drives you around in a limo, but instead it is a chip which controls the MOSFETs in each phase. The driver is controlled by the PWM and is an integral part of the system.

Doubler: We will talk about the doubler a little as they are commonly used today in the phase wars. They basically are like a multiplexer which takes a single PWM signal and divides that signal into two, however it also reduces the maximum switching frequency by half. There are also some quadrouplers, these are interesting as I have only seen one which is in production(IR3599) and it takes a single input and basically divides it into 4 by dividing into 2 twice, and you get an output which is ¼ the switching frequency of the input. Nowadays we see single doubler chips, or we see them integrated into the driver, however in the past sometimes motherboard makers used analog switches, which would take in 4 PWM signals and output 8. The only place you see this done now is with some X58/Z77/Z68 MSI motherboards.

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AMD Navi GPUs, AMD 5xxx series, official topic http://personal-view.com/talks/discussion/21052/amd-navi-gpus-amd-5xxx-series-official-topic Wed, 05 Dec 2018 07:30:42 -0700 Vitaliy_Kiselev 21052@/talks/discussions

Make correction that leak is on big AMD fan channel :-) So, some stuff is not fully correct :-) Use logic that guess that.

  • AMD Radeon RX 3080
    • $249
    • 8GB GDDR6
    • Performance ala Vega 64 + 15%
    • Competitor for RTX 2070 or GTX 1080
    • 150W TDP
    • Navi 10 chip
  • AMD Radeon RX 3070
    • $199
    • 8GB GDDR6
    • performance ala Vega 56
    • Competitor for RTX 2060 or GTX 1070
    • 120W TDP
    • Navi 12 chip
  • AMD Radeon RX 3060
    • $129
    • 4GB GDDR6
    • performance ala RX 580
    • Competitor for RTX 2050 or GTX 1060
    • 75W TDP, no external power connector
    • Navi 12 chip
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AMD X570, B550 chipsets and motherboards on them http://personal-view.com/talks/discussion/21414/amd-x570-b550-chipsets-and-motherboards-on-them Mon, 28 Jan 2019 08:25:22 -0700 Vitaliy_Kiselev 21414@/talks/discussions
  • First in Ryzen family of chipsets made inside company, chipsets are very profitable business, this is why AMD doing this
  • Much higher TDW of 15 watts
  • 4x PCIe 3.0 lines connecting CPU and chipset will be replaced by 4x PCIe 4.0 lines doubling throughput
  • All lines provided by chipset will be PCIe 3.0 or PCIe 4.0.
  • Number of provided lines will rise by 25-50%
  • It'll have 4 USB 3.1 Gen2 ports controller not requiring additional Asmedia chips and supporting part of power delivery standards.
  • We can see build in 10Gbe network controller (that will still require additional chips and transformer).
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    AMD Zen 2 aka Ryzen 3000 CPUs details http://personal-view.com/talks/discussion/20830/amd-zen-2-aka-ryzen-3000-cpus-details Tue, 06 Nov 2018 17:02:23 -0700 Vitaliy_Kiselev 20830@/talks/discussions image

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    The move to 7nm allowed AMD to make lot of advances with its Rome-based EPYC processor core microarchitecture:

    • 2X Performance per Socket
    • 4X Floating Point performance per socket
    • Previous gen socket compatible
    • Forward compatible with next gen Milan platform that supports PCI Express 4 connectivity
    • Improved branch prediction 
    • Better instructions prefetch 
    • Re-optimized micro-op instruction cache
    • Increased the size of the micro-op cache  
    • Doubled floating point width to 256-bit 
    • Doubled load store bandwidth 
    • Increased dispatch and retire bandwidth 
    • Results in maintained high throughput for all modes

    Nice thing

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    AMD Threadripper 1st Gen 16-core CPUs http://personal-view.com/talks/discussion/16950/amd-threadripper-1st-gen-16-core-cpus Wed, 17 May 2017 02:42:14 -0600 Vitaliy_Kiselev 16950@/talks/discussions

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    AMD TR2 x399 HEDT Motherboard Selection Guide for Video Editors http://personal-view.com/talks/discussion/21511/amd-tr2-x399-hedt-motherboard-selection-guide-for-video-editors Sun, 10 Feb 2019 00:59:31 -0700 Vitaliy_Kiselev 21511@/talks/discussions This is very short and on point guide for selecting ATX board for your Threadripper build.

    X399 chipset diagram

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    If you look at this you will see how mighty is CPU, but how shitty is ASMedia made chipset.

    In reality it is same features and restrictions chipset as consumer X370 one.

    In reality we can have exactly same die used for A320/B350/X370/X399 chipsets.

    Comparison of TR2 platform to consumer, Ryzen one

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    Seasonic SCMD - future of PSU cables routing http://personal-view.com/talks/discussion/19856/seasonic-scmd-future-of-psu-cables-routing Mon, 11 Jun 2018 13:46:02 -0600 Vitaliy_Kiselev 19856@/talks/discussions image

    Proper way to deal with mess, but keep compatibility.

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    AMD AM4 Motherboards Selection Guide for Video Editors http://personal-view.com/talks/discussion/21405/amd-am4-motherboards-selection-guide-for-video-editors Sat, 26 Jan 2019 15:19:23 -0700 Vitaliy_Kiselev 21405@/talks/discussions Topic solely for selection of motherboard for your AM4 Ryzen CPU based system.

    Focused on video editor needs

    I'll be adding systematic info post by post.

    Ideal modern video editor motherboard must allow:

    • Work with overclocked 8 core CPUs fine without VRM issues, preferably be ready for upcoming 16 core chips
    • Have ability to install pair of NVMe x4 SSD drives (one can be using PCIe 2.0), M.2 slot not located under GPU hot air is big plus!
    • Have pair of USB 3.1 Gen2 10Mbit ports so you can transfer data from/to your fast SSD quick - check more . Front panel connector is also big plus.
    • Have or allow to install 10Gbit Ethernet/56Gbit Infiniband network adapter to quickly use directly or dump large amount of footage at NAS/Server.
    • Have proper slots alignment taking in account that some good GPUs have 2.5 slot sized cooling.
    • Installing 2nd GPU always leads to lot of compromises on this platform, but if this is performance bottleneck - go for it.

    Best CPU info

    We are searching board for 8-16 core CPUs, it is not much reason to look for other CPUs.

    Ryzen is gaming/consumer CPU with serious IO shortcomings by design (but less serious compared to Intel consumer line).

    • Ryzen chips have 24 PCIe v3.0 lines.
    • 4x goes to NVMe slot of board (Intel lacks this).
    • 16x go to GPU - and this one on A320 and B350/450 can't be split (aka bifurcation), to force MB makers to buy more expensive chipsets for SLI.
    • 4x is left for the chipset (on Intel it is same). Chipset uses them for lot of things, including making multiple PCIe 2.0 (or PCI 4.0 for X570) lines.

    Note Actual Ryzen 1xxx or 2xxx die has full 32 PCIe 3.0 lines, but it had been decided that it will be too nice to allow consumer PCs to use them all. References that somehow AMD does not have free pins in socket is absolute bullshit.

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    Note! Ryzen 2200G or 2400G are designed such way that they provide only 8 PCIe 3.0 lines to GPU instead of 16x and they can't be split.
    So, forget about idea of using them for any advanced tasks.

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    Chipset difference

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    If you look carefully you understand that you must avoid B350/B450 chipsets at all cost, not mentioning A320.

    • First reason - they do not allow to split x16 into two PCIe x8 slots, this is very bad for us* (see note below).
    • Second reason - they have less general purpose PCIe 2.0 lines, 2 less sounds like not much, but it is very important on our limited consumer CPU IO budget.

    Note about bifurcation/split. As usual in capitalism - it is artificially removed and disabled feature. On Asrock ITX B350/B450 boards such options is present and works. It had been done due to large request from users/buyers and some other companies do this (keeping silence so it won't become open knowledge among too many, yet you still need to modify BIOS to enable SLI). But even with such options it is horrible life as you need custom impossible to find riser and turning GPU card into vertical state or such.

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    SSD performance limits on Ryzen

    Second M.2 slot on almost all boards where it is present will be using PCIe 2.0 x2 or x4 mode (except x570 chipset!).

    PCIe 2.0 per-lane throughput is 5GT/s or 500MB/s of actual data transfer per lane. x2 will be capped at 1GB/sec recording/reading and x4 at 2GB/sec recording/reading, no matter if the limit of SSD you put in it is higher.

    First M.2 slot uses four dedicated v3.0 lines. Single PCIe 3.0 lane at 8GT/s, can send 985MB/s. This limit is close to 4GB/sec.

    For x570 chipset all lines will be PCI 4.0 lines, double the bandwidth of PCI 3.0.

    Network stuff

    Ideally we want 10Gbit adapter, but most probably you will need free x4 slot for one - check https://www.personal-view.com/talks/discussion/21364/making-10gbit-network-using-sfp-adapters-for-cheap#Item_11

    Among 1Gbit always aim for Intel, it is not much difference but saves little CPU load and lot of your nerves.

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    Threadripper 3 and x599 Threadripper new chipset coming http://personal-view.com/talks/discussion/21834/threadripper-3-and-x599-threadripper-new-chipset-coming Tue, 02 Apr 2019 10:32:19 -0600 Vitaliy_Kiselev 21834@/talks/discussions From Gigabyte certification filings:

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    X499 Aorus Xtreme Waterforce, X499 Aorus Master and X499 Designare EX-10G new motherboards.

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    Xiaomi 13.3" and 12.5" Mi Notebook Air 2018, say bye to your Mac http://personal-view.com/talks/discussion/20834/xiaomi-13.3-and-12.5-mi-notebook-air-2018-say-bye-to-your-mac Wed, 07 Nov 2018 15:04:13 -0700 Vitaliy_Kiselev 20834@/talks/discussions image

    • 13.3" IPS LCD Full HD panel, Corning Gorilla Glass 3 protected
    • i3 processor 4 core CPU, special advanced two fans, two heatpipes cooling allowing CPU to work at max always
    • 8-16GB of DDR4 RAM
    • from 128GB SSD
    • Fingerprint unlock
    • Windows 10 Home Edition
    • Wi-Fi 802.11ac / Bluetooth 4.1
    • USB Type-C, USB 2.0 ×2, HDMI
    • 40Wh battery with fast USB-C charge (30 min to 50%)
    • 9.5 hours on single charge.
    • 9.6 x 210.9 x 14.8 mm
    • 1.3 kg
    • ~$579 price ($549 on preorder)
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    Older Ryzen processors for editing rig http://personal-view.com/talks/discussion/22258/older-ryzen-processors-for-editing-rig Sat, 06 Jul 2019 04:12:10 -0600 Vitaliy_Kiselev 22258@/talks/discussions Ryzen 3xxx processors are very nice and all, but financially they are not optimal budget choice outside top segment of 12-16 cores.

    Compared to 1-2 gen Ryzen new CPUs real advantage is only around 10-15% on same clock speed, all Ryzen processors are overclockable on any decent motherboard.

    So, we'll go from most bargain CPUs:

    Two latest CPUs are best for file storage servers or for simpler 1080p editing rig.
    Even Ryzen 3 1200 is enough for fast server with 10Gbit connection and pair of NVMe drives that hold most recent footage. Ryzen 1700 will be better and better each month, as Adobe and Resolve with each new release will be more and more aimed for high core CPUs.

    I strongly suggest to use x370-x470 boards, even if used, to have upgrade path for later, check https://www.personal-view.com/talks/discussion/21405/amd-am4-motherboards-selection-guide-for-video-editors#Item_22.

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    AMD Threadripper 2nd Gen 32 Core CPUs http://personal-view.com/talks/discussion/19920/amd-threadripper-2nd-gen-32-core-cpus Tue, 19 Jun 2018 14:27:11 -0600 Vitaliy_Kiselev 19920@/talks/discussions First Cinebench results coming (here it is overclocked 4.1Ghz one)

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    Specs

    • Threadripper 2 will have two models - 2990X and 2970X
    • 12nm Zen+ architecture
    • 64Mb cache
    • 2990X will have 32 cores/ 64 threads
    • 2970X will have 28 cores/ 48 threads
    • Nominal frequency will be 3.0Ghz
    • Turbo boost frequency will be 3,4-4.2Ghz
    • 4 channel memory
    • 60+4 PCI-E lines
    • 250W TDP
    • R4/X399 platform
    • Available since August 2018
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    Lenovo: Story of idiots http://personal-view.com/talks/discussion/5856/lenovo-story-of-idiots Mon, 21 Jan 2013 09:08:05 -0700 Vitaliy_Kiselev 5856@/talks/discussions image

    Lenovo will continue to destroy all advantages of ThinkPad design.

    They do it one by one:

    • Making construction cheaper and weaker
    • Horrible cheap materials now used for most models
    • Rock solid, best notebook keyboards first were made quite flimsy
    • Secondly keys were replaced to modern cheap ones
    • Famous very good IBM layout had been replaced by one used in cheapest IdeaPads
    • Now we can see fully removed TrackPoint buttons because some designer figured out that it'll be cheaper to force you press trackpad.

    Btw, Ideapad brand will be destroyed as complete failure. And ThinkPad will be widened to try to sell all their crap.

    My IBM 600e looks like something made by alients compared to my modern ThinkPad.

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    Intel Comet Lake Upcoming 14nm CPUs http://personal-view.com/talks/discussion/22267/intel-comet-lake-upcoming-14nm-cpus Tue, 09 Jul 2019 14:56:08 -0600 Vitaliy_Kiselev 22267@/talks/discussions image

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    Idea is to move to 10 cores using same 14nm process, making it even larger die.

    VRM requirements and heat output will also increase.

    And, as usual, for each generation we will see new socket.

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    AMD Radeon VII GPU is made for video editing http://personal-view.com/talks/discussion/21287/amd-radeon-vii-gpu-is-made-for-video-editing Wed, 09 Jan 2019 16:32:16 -0700 Vitaliy_Kiselev 21287@/talks/discussions

    Lot of high speed HBM memory - 16GB, nice calc performance.

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    RedmiBook 14 2019 - Macbook Air alternative http://personal-view.com/talks/discussion/22123/redmibook-14-2019-macbook-air-alternative Wed, 29 May 2019 09:05:26 -0600 Vitaliy_Kiselev 22123@/talks/discussions image

    Specs

    • Intel Core i5-8265U (Intel Core i7-8565U for advanced variant)
    • 256Gb SSD (512GB SSD for advanced variant)
    • 8Gb DDR4 RAM
    • Nvidia GeForce MX250 GPU
    • 14" IPS FullHD panel
    • 2x USB 3.0 ports, USB 2.0 port, HDMI port
    • Wi-Fi 802.11ac, Bluetooth
    • $580 (advanced variant - $725)
    • Fast charging
    • 1.5kg
    • June 1 availability

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    Nvidia RTX 20xx Turing GPUs - little performance for much more money http://personal-view.com/talks/discussion/19013/nvidia-rtx-20xx-turing-gpus-little-performance-for-much-more-money Wed, 14 Feb 2018 15:34:55 -0700 Vitaliy_Kiselev 19013@/talks/discussions Rumors for now

    • Initial announcement will happen at GPU Technology Conference at 26 to 29 March.
    • GPU will be based on simplified Volta architecture
    • Will have around 30% performance boost, mostly due to memory and more cores
    • It'll be variants with GDDR6 and GDDR5 RAM, staring with 4GB (due to RAM shortages)
    • Recommended price will be around 10% more than Pascal upon introduction
    • Actual price will be around 35-40% more for at least half a year
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    What is wrong with Intel discrete GPU? http://personal-view.com/talks/discussion/21762/what-is-wrong-with-intel-discrete-gpu Fri, 22 Mar 2019 00:41:32 -0600 Vitaliy_Kiselev 21762@/talks/discussions image

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    Intel posted first images of their discrete GPU.

    Lot of industry press post various bullshit on how competitive it will be and such.

    In reality here we see 75-120W card with worst possible cooling, obviously made for multi GPU configurations.

    Real intended market for this card will be CAD, 10-14bit color editing and similar applications.

    GPU itself won't be really powerful.

    Whole project is more like a con to distract public from full failure with moving to real 10nm and 7nm.

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    Computer Power Suppliers, PSU, PV collection of info http://personal-view.com/talks/discussion/19662/computer-power-suppliers-psu-pv-collection-of-info Mon, 07 May 2018 23:12:26 -0600 Vitaliy_Kiselev 19662@/talks/discussions In previously common 80mm fans PSU capacitor location was quite good, as it is near air intake. Lot of air passes by.

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    As we move to present day

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    Air coming from top, but lot of time capacitor is in the corner, give it 85 degrees rated capacitor and some time and it'll be issue. Photo above is for good PSU (no longer made) that fail with around 90% probability within 3-5 years time.

    Sample of one of Seasonic PSU designs

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    Better cooling, 105 degrees Japan capacitors and hence very long warranty (they have 7-11 year for good products).

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    Sandy Bridge - old but usable, even for 4K http://personal-view.com/talks/discussion/17145/sandy-bridge-old-but-usable-even-for-4k Wed, 14 Jun 2017 06:26:58 -0600 Vitaliy_Kiselev 17145@/talks/discussions For starters small tip. Not all guys know that you can overclock even non K models, if on proper MB.

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    Usually it is enough to use build in MB automatic feature.

    On average it'll be 3.8Ghz for 4 cores mode + 103Mhz BCLK, overall it is 15% performance rise (it takes Intel around 4 CPU generations now to do same :-).

    In reality, of course it is simpler to get i2500K for around $51.5 (like Z77, P67 does not support it)

    http://aliexpress.com/item/For-Intel-i5-2500K-Processor-Quad-Core-3-3GHz-LGA-1155-TDP-95W-6MB-Cache-With/32635885077.html

    Around 95-99% of CPUs work perfect at 4500Ghz, and around 30-40% on good cooler can work at 4.8-5Ghz.

    Overclocked Sandy Bridge with GPU like 1050 / RX 460 still is cheapest build for 4K editing, especially with proper editor.

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    QNAP Superb card with 10GbE and two M.2 SSD slots http://personal-view.com/talks/discussion/22202/qnap-superb-card-with-10gbe-and-two-m.2-ssd-slots Wed, 19 Jun 2019 12:08:43 -0600 Vitaliy_Kiselev 22202@/talks/discussions image

    They have two versions - QM2-2S10G1TA and QM2-2P10G1TA, one can work with only SATA SSDs.

    Will use PCIe Gen2 x4 slot.

    Only issue is high price at $260–270 (retail 10Gbe adapter is around $60-80).

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    SilverStone CS381 - cool 8*3.5"+4x2.5" NAS case http://personal-view.com/talks/discussion/22199/silverstone-cs381-cool-83.5-4x2.5-nas-case Wed, 19 Jun 2019 07:00:02 -0600 Vitaliy_Kiselev 22199@/talks/discussions image

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    Specs

    • 8x3.5"(can mount 2.5") hot swap HDD/SSD trays
    • 4 places for internal 2.5" HDDs or SSDs
    • Micro-ATX, Mini-DTX and Mini-ITX mainboard supported, and it is cool as mATX is much cheaper
    • 400 × 225 × 232mm size
    • SFX power supply required
    • 7kg
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    PCI Express 6.0 also coming soon http://personal-view.com/talks/discussion/22193/pci-express-6.0-also-coming-soon Tue, 18 Jun 2019 21:31:24 -0600 Vitaliy_Kiselev 22193@/talks/discussions

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    PCI-SIG announced that PCI Express® (PCIe®) 6.0 technology will double the data rate to 64 GT/s while maintaining backwards compatibility with previous generations and delivering power efficiency and cost-effective performance. The PCIe 6.0 specification is actively targeted for release in 2021.

    PCIe 6.0 Specification Features

    • Delivers 64 GT/s raw bit rate and up to 256 GB/s via x16 configuration
    • Utilizes PAM-4 (Pulse Amplitude Modulation with 4 levels) encoding and leverages existing 56G PAM-4 in the industry
    • Includes low-latency Forward Error Correction (FEC) with additional mechanisms to improve bandwidth efficiency
    • Maintains backwards compatibility with all previous generations of PCIe technology

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    “PCI Express technology has established itself as a pervasive I/O technology by sustaining bandwidth improvements for five generations over two decades,” Dennis Martin, an analyst at Principled Technologies, said. “With the PCIe 6.0 specification, PCI-SIG aims to answer the demands of such hot markets as Artificial Intelligence, Machine Learning, networking, communication systems, storage, High-Performance Computing, and more.”

    “Continuing the trend we set with the PCIe 5.0 specification, the PCIe 6.0 specification is on a fast timeline,” Al Yanes, PCI-SIG Chairman and President, said. “Due to the continued commitment of our member companies, we are on pace to double the bandwidth yet again in a time frame that will meet industry demand for throughput.”

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    Quantum dots - next big thing in monitors (aka Sony TRILUMINOS) http://personal-view.com/talks/discussion/10963/quantum-dots-next-big-thing-in-monitors-aka-sony-triluminos Sun, 03 Aug 2014 06:08:18 -0600 Vitaliy_Kiselev 10963@/talks/discussions

    Idea behind this displays is to use quantum dot effect making very sharp spectrum peaks for red, green and blue. Such approach allow to improve color gamut while keeping energy efficiency.

    Sony’s approach uses an uncoated LED inside a thin glass tube packed with red and green quantum dots supplied by Massachussetts company QD Vision. When the dots get blasted with electricity, they only emit light at their characteristic wavelengths, which, combined with the blue light from the LED, form a white light that’s more intense at those three points.

    It is used in their TV, Monitors, tablets and phones.

    Like:

    HiSense introduced a 4K quantum-dot “Wide Gamut TV,” which uses QDEF film rather than the QD Vision rail. It will enter the Chinese market in March; U.S. in the summer. Maximum size is 85 inches, and there is an H.265 decoder built in.

    See more at:

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    Good design: Mouse for video edit guys - Roccat Nyth design at a cheap http://personal-view.com/talks/discussion/22139/good-design-mouse-for-video-edit-guys-roccat-nyth-design-at-a-cheap Fri, 31 May 2019 14:05:44 -0600 Vitaliy_Kiselev 22139@/talks/discussions image

    image

    Make sure to drop more at https://www.personal-view.com/talks/discussion/21997/new-aliexpress-coupons#Item_9

    Extremely good for video editing. I'll soon make big topic on proper mouse models for editors and how it all work and how it seed up work.

    https://www.aliexpress.com/item/Rocketek-USB-RGB-wired-Gaming-Mouse-24000-DPI-16-buttons-laser-programmable-game-mice-backlight-ergonomic/33017156503.html

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    Threadripper 4 and corresponding chipsets http://personal-view.com/talks/discussion/22186/threadripper-4-and-corresponding-chipsets Sun, 16 Jun 2019 22:52:03 -0600 Vitaliy_Kiselev 22186@/talks/discussions Unofficial 2020 AMD roadmap set it on Q4 2020 release.

    image

    All the current leaks for 2019 also proves Q4 release for Threadripper 3, so seems probable.

    Top CPU will keep 64 cores/128 threads config, but price is expected to fall around 30% per generation.

    In 2020 Lowest end Threadripper with 16 cores can enter $299 territory and 32 core part to be at $499-599.

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    AMD Zen 3 aka Ryzen 4xxx CPUs http://personal-view.com/talks/discussion/22185/amd-zen-3-aka-ryzen-4xxx-cpus Sun, 16 Jun 2019 22:49:12 -0600 Vitaliy_Kiselev 22185@/talks/discussions First unofficial 2020 roadmap surfaced

    image

    Some very early leaks and predictions:

    • 7nm+ process, mostly to make products cheaper by using EUV on some parts
    • around +100Mhz frequency rise on average, +200Mhz stock for top models
    • 1-3% IPC progress
    • DDR4 memory controller must stay same as in Zen 2
    • Possible DDR5 controller for premium x670 boards
    • 8 core price is expected to drop to $199
    • 16 core to $499
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    History and speed of Ryzen CPUs price fall http://personal-view.com/talks/discussion/22184/history-and-speed-of-ryzen-cpus-price-fall Sun, 16 Jun 2019 21:41:35 -0600 Vitaliy_Kiselev 22184@/talks/discussions First generation

    Note - ali prices include typical current easy to get coupons, like $5/50.

    Second generation

    Third generation prices, for reference

    • Ryzen 5 3600, 6 core, 2019 start price is $199
    • Ryzen 7 3700X, 8 core, 2019 start price is $329

    Small predictions for early 2020

    • Ryzen 1600 OEM used price will reach $69
    • Ryzen 1700 OEM used price will reach $99
    • Ryzen 2600 OEM used price will reach $79
    • Ryzen 2700 OEM used price will reach $119
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    XBox and Playstation 5 as way to look at near future of computers http://personal-view.com/talks/discussion/22095/xbox-and-playstation-5-as-way-to-look-at-near-future-of-computers Tue, 21 May 2019 13:32:45 -0600 Vitaliy_Kiselev 22095@/talks/discussions PS5 dev kit specs

    • Monolithic die ~22.4mm by ~14.1mm custom LSI with Zen 2 CPU + Navi GPU (weakest part of all!)
    • 32GB GRRD6 - 16 Samsung K4ZAF325BM-HC18 in clamshell configuration
    • 6GB DDR4 for cache and such - 3 Samsung K4AAG085WB-MCRC, 2 of those close to the NAND acting as DRAM cache (unusual 2GB DRAM per 1 TB NAND)
    • 4 NAND packages soldered to the PCB which are TH58LJT2T24BAEG from Toshiba
    • 2TB SSD that uses PCIe 4.0 controller PS5016-E16 from Phison

    image

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