Knowledge Alternatives

Knowledge reviews and mentions

• Radxa Rock 5 ITX: 8-Core ARM Mini ITX Board with LPDDR5 RAM
  2 projects | news.ycombinator.com | 15 Apr 2024

  tkaiser has some additional information from his initial testing at https://github.com/ThomasKaiser/Knowledge/blob/master/articl... if people are curious to know more, though it should be noted these were early release samples and as such, software/firmware isn't exactly perfect at the moment

• Pihole is down on orangepi 3 LTS, Debian bullseye 3.0.8. Can no longer SSH, and my username and root login isn't being accepted. Whats going on??
  1 project | /r/pihole | 10 Jun 2023

  "Armbian recommends A1 rated SD-Cards only now (A2 rated cards need yet lacking driver support and therefore show lower overall and especially random IO performance)."

• Orange Pi 5 vs Raspberry Pi?
  2 projects | /r/OrangePI | 23 Mar 2023

  From: https://github.com/ThomasKaiser/Knowledge/blob/master/articles/Quick_Preview_of_ROCK_5B.md

• Steam Deck Card reader supports only SD Specification 3.x
  1 project | /r/SteamDeck | 29 Nov 2022

  Yes and no, in this articleguy tests A1 and A2 cards and on non compatible reader some A2 cards are slower than A1 cards.

• The Framework Laptop Chromebook Edition
  4 projects | news.ycombinator.com | 21 Sep 2022

  One thing worth noting is that basically, even now (almost 10 months post announcement), almost no one has a 6000U laptop outs (a search on Amazon and Best Buy shows two 6800U laptop models total, one Asus and one Lenovo). Two niche vendors, XMG and Star Labs, have both publicly stated that they would have loved to have offered Ryzen 6000 laptops, but couldn't get any allotments. There are were also well documented chipset issues - even into the summer Lenovo and Asus talked about requiring firmware updates to enable their USB4 ports.

  That being said, starting w/ Rembrandt, AMD now has full 40Gbps USB4 controllers built on-chip. I'm really looking forward to Ryzen 7040 because Phoenix looks great (Zen4 + RDNA3 on TSMC N4 - yes please) and hopefully USB4 support has matured enough on the AMD side that Framework is able to release something.

  My understanding is that the I/O limitation is in the re-timers - currently the Framework uses 4X JHL8040R's (labeled as Burnside Bridge) directly connected to the iTBT: https://github.com/FrameworkComputer/Mainboard/blob/main/Ele... Apple used these for their first M1 MBAs as well: https://github.com/ThomasKaiser/Knowledge/blob/master/articl...

  But both Apple and AMD are now using Kandou retimers:

  * https://www.gizchina.com/2022/07/25/apple-completely-got-rid...

  * https://kandou.com/matterhorn.html

  * https://kandou.com/assets/downloads/product-briefs/KB8001-Pr...

• PSA: A MicroSD card guide that seems to be sorely needed
  2 projects | /r/SteamDeck | 30 Aug 2022

  Some early A2 cards were implemented poorly and actually had worse IOPS than A1 cards, as they used a worse onboard controller in the hopes of the system making up for the deficiency. See here. Reputable large A2 cards no longer have this issue but it's still a minefield.

• Don't get stuck with the wrong SD card.
  1 project | /r/SteamDeck | 29 Sep 2021

  In addition to this, the A2 standard requires hardware/driver support of Command Queuing and Write Caching, and without proper support A2 cards can and will perform worse than their A1 counterparts

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  www.influxdata.com | 29 Apr 2024

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