IBM 5150 maximum memory?

[Fred Cisin]

On Fri, 25 Apr 2008, Michael B. Brutman wrote:
> I'm kind of surprised that this hasn't come up yet.

It's been referenced over and over without the details.

> The original BIOS and the 2nd revision BIOS (Oct 1981) both had a cute
> little bug in them where they would only count up to 544K

THAT'S the "about but not exactly 512K" number that we've been looking
for.

Once you finally found out about it, it wasn't too hard to patch.