✧✦Catherine✦✧Mar 28

so i took apart an NVIDIA BF-3 card and would anybody who understands it please enlighten me why it has on board:

  • Puya P24CM02 (256 KB)
  • Winbond W25Q256JVBM (32 MB)
  • Winbond W25Q512JVBQ (64 MB)
  • MXIC MX66L2G45G (256 MB)
  • a Kingston EMMC128-TY29 (128 GB)
  • a Microchip CEC1736 root-of-trust controller (which embeds 2 or 4 MB of internal SPI flash and is connected to the other three SPI flashes... I think)
  • and an ASPEED chip with a p/n I did not extract from under thermal compound looking suspiciously similar to those awful BMC devices, connected to 1 GB of Samsung DDR4

I wasn't prepared for a 1 Tbit eMMC connected directly to the main ASIC. what could it possibly be storing there? the field engineer's porn stash?

Show thread✧✦Catherine✦✧Mar 28
this is literally more flash than in most laptops, even if you include Thunderbolt controllers and the display firmware
Show thread✧✦Catherine✦✧Mar 28
apparently the network card runs ubuntu
Show threadmorgan
@whitequark only three toots deep in the thread and the plot is already fantastic
Mar 28 at 6:13pmWeb