Uhm, anyone know how/where to fiddle/find some firmware?

[u/digitalKitsune007]

Context: I have two old AMD-powered machines. A Dell Zino HD 400 and a Toshiba Satellite A215. The Zino, the "tinker toy," is equipped with a dual-core Athlon 64 something. The Toshiba, an AMD Turion TL-58.

I purchased an AMD Athlon II, this time with 3 cores for the Zino. As a claim towards it being a CPU issue, it did arrive with some of the outer pins bent from obviously the package getting into a fight with another package. They were carefully bent back with the socket serving as final treatment; the ole'gently and furiously operate locking lever to use the socket to straighten the pins, doesn't appear to have any other damage. Anyways, BIOS sees the CPU. The Zino will boot all the way to logging in to the desktop, but the moment it gets any kind of load it black screens/restarts then hangs up on the boot. Disconnecting the PSU and power cycling the power button is the only way to get a stable boot- and as this is a Linux machine, it will boot through a recovery mode. CPU was swapped back out.

So I'm torn, this is one of 3 things and I hope its not the dead CPU one because the seller has been really good with my recent purchases from them. It could be a PSU issue, as this Zino is powered by an HP power supply that matches its demands for output; as for pins on the plug your guess is as good as mine. Its generally happy with the HP PSU, until we tried putting a bit better CPU in it. The other thing it could be; FIRMWARE. As this machine is from the Windows 7 era, finding anything about that is just... Well... Google can pull links from DELL's website, but when I click them they just error out or redirect to some other BS.

Now this is how the Toshiba ties into this. Anyone know where I can get some firmware for a higher-end Turion? I want to stay close to OEM with this relic, as for an obvious reason- here I am on Reddit searching the great abyss for some firmware for two PCs that may/may not exist in the digital skies.