Re: [tlug] EE question (was: VPN?)

[David J Iannucci <jlinux@example.com>]

> 19V x 3.42A = 65 W (well VA actually). If you use a 65W or beefier PSU
> with around 19V, you should be fine.

My leftover PSU is 18.5V ⎓​ 3.5A (and there's the proof that it's a DC
PSU also :=)

> Do a triple check that polarity is matched! If you reverse the +
> and -, oftentimes you will let the magic smoke off (some regulator on
> the board) and that is the end.

I had always thought that polarity wasn't very important, so I'm glad
you corrected that notion for me. The PSU is marked for polarity, as
usual, but the PC is not. How can I check without risking it? I found a
manuf. spec sheet but this sort of info is not given. These things are
almost always + in the center, right? That's what the PSU is.

> I think it is safe (for me at least, LoL) for you to try. Check the
> temperature (by hand) on the PSU, load the machine (cpuburn, build a
> kernel with -j8, `john --test`, etc.) for an hour and check the
> temperature every few minutes initially.

So I guess if it doesn't die within the first few minutes, and can run
hard without the PSU getting warm, then I'm good, eh?

Thanks!

Dave