Windows 10: Differences in Gen 2 and Gen 3

Discus and support Differences in Gen 2 and Gen 3 in Windows 10 Graphic Cards to solve the problem; I got to thinking since my motherboard has two graphics card (16x) slots, but one is a Gen 2 and the other is a Gen 3, why can't I put my M2 SSD in the... Discussion in 'Windows 10 Graphic Cards' started by timlab55, Dec 28, 2019.

  1. timlab55 Win User

    Differences in Gen 2 and Gen 3


    I got to thinking since my motherboard has two graphics card (16x) slots, but one is a Gen 2 and the other is a Gen 3, why can't I put my M2 SSD in the Gen 3 and my graphics card in the Gen 2. Wow what a differences in speed. Boot time is nothing now, downloads are simple a thing of the past when I did this. I've attached a picture of the differences between the Gen 2 and Gen 3 speed test.

    :)
     
    timlab55, Dec 28, 2019
    #1
  2. Sam3000 Win User

    Why is my USB 3.1 gen 2 adapter (USB C Female to USB A Male) causing bottlenecking?

    I recently picked up an SSD and enclosure with a built in USB Cable. CrystalDiskMark shows a >500MB/s read speed and >400MB/s write speed with a direct USB C connection to a USB 3.1 gen 2 port, so all good here.

    But I also picked up these adaptors from amazon.co.uk to ensure I could connect the drive to more common USB type A ports. These adapters noted that they could handle the 10Gbit speeds of USB 3.1 gen 2, although they do note that when this is the case the "other side" (Type A side) runs at USB 2 speeds. Out of a lack of options I decided to give them a go nonetheless and the claim is true. But it's not as simple as saying "these must really just be USB 2 adaptors with a blue finish".

    When using the adapter to connect the drive to a front panel USB 3.1 gen 1 port connected to the USB 3 motherboard header, the speeds are ~300MB/s and 400MB/s read and write respectively. So the adapter can handle high throughput but just can't when used in gen 1 or 2 ports on the IO panel of the motherboard itself. Maybe this is a motherboard issue...

    Edit: Just verified this across 2 Desktop systems:

    • Rear Motherboard IO (USB 3.1 gen 1 and gen 2) with adapter: ~40BM/s
      R/W
    • Rear Motherboard USB C with no adapter ~500MB/s R and ~400MB/s W
      (full speed)
    • Front panel IO connected to motherboard USB 3 header (gen 1) with
      adapter ~200MB/s R ~400MB/s W

    What am I missing here? I have found only one adapter available that clearly states it has 10Gbit ports at either end but it's pricey so any alternative suggestions are welcome. Notably, it has a significant rectangle shape at the USB C side, maybe this is part of the explanation...? See below:


    Differences in Gen 2 and Gen 3 Z1QHv.jpg
     
    Sam3000, Dec 28, 2019
    #2
  3. When will Microsoft Store stock Thinkpad P1 Gen 2

    When will Microsoft Store stock Thinkpad P1 Gen 2
     
    CopywriterLP, Dec 28, 2019
    #3
  4. Phone Man Win User

    Differences in Gen 2 and Gen 3

    USB 3.1 Gen 2 header

    That header is a 20-pin and is 3.1 Gen 2 and was designed to connect to the front of the case but should work with bracket bobkn linked to.

    On the rear of the MB you have three 3.2 Gen 2 A connectors and one 3.2 Gen 2 C connector.

    Jim *Cool
     
    Phone Man, Dec 28, 2019
    #4
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Differences in Gen 2 and Gen 3

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