[rescue] OT: DEC 3000 Rescue

[Dave McGuire]

On August 23, Neil McNeight wrote:
> I've got an opportunity to get 2 DEC 3000 bases for $50 each. I need to
> know:

  GRAB 'EM!  Run NetBSD on 'em!

> * How to tell what's in them by visual inspection (processor speed,
> goodies, etc).
> * How to get one running headless (maybe... didn't look for monitors or
> keyboards).
> * Anything else to look for.
> * Is this even a decent deal?

  Yes.  3000-series machines are older, but are built like tanks and run
very well.  Especially something modern and well-tuned like NetBSD.

> I could see that one was fully loaded with RAM, the other only had a
> couple of SIMMS, and both had some form of processor on board (alpha 21064
> came standard according to the NetBSD page, but there is a big honking
> heat sink in the way).

  Here's the poop:

  model	     clock	mem bus width		mem bandwidth
  ------------------------------------------------------------------
  3000/300   150MHz	64 bits			r=300MB/s, w=240MB/s
  3000/300L  100MHz	64 bits			r=200MB/s, w=160MB/s
  3000/300X  175MHz	64 bits			r=329MB/s, w=224MB/s
  3000/300LX 125MHz	64 bits			r=250MB/s, w=200MB/s
  3000/400   133MHz	128 bits		427MB/s
  3000/500   150MHz	128 bits		480MB/s
  3000/500X  200MHz	128 bits		640MB/s
  3000/600   175MHz	128 bits		560MB/s
  3000/700   225MHz	128 bits		600MB/s
  3000/800   200MHz	128 bits		640MB/s
  3000/900   275MHz	128 bits		629MB/s

  Hope this helps.

    -Dave

-- 
Dave McGuire
Laurel, MD