[SunHELP] Testing a Sparc 20

[Peter Stokes]

Sparc 20 will run SM40, but you are running the SM30 outside its spec'd
range. As well as this you need to make sure that the base board freqency is
set to 40Mhz, it is normally set to 50Mhz for the SM50, SM51 etc. Depending
on the board this is set slightly differently. If you need to know for a
specific, please let me know.

Peter

---------------------------------
Peter Stokes
Ashlyn Computer Services Ltd
Tel: +44 (0)1636-627900
Fax: +44 (0)1636-627909
Mbl: +44 (0)7977-532320
Web: http://www.ashlyn.co.uk
---------------------------------

-----Original Message-----
From: sunhelp-admin at sunhelp.org [mailto:sunhelp-admin at sunhelp.org]On
Behalf Of Bran Tregare
Sent: 29 June 2001 03:44
To: sunhelp at sunhelp.org
Subject: Re: [SunHELP] Testing a Sparc 20


Sparc 20's require MBUS CPU modules to do anything.  I've discovered that
even an old SM-30 will run in a sparc 20 :)  comparing a SM-30 and a SM-40
cpu card the only visible difference is the barcode.

At 08:19 AM 6/28/01 -0700, you wrote:
>Hello,
>
>I have a Sparc twenty that I am trying to test if it works -- in
>particular I want to see  what PROM it has.
>
>It has no MBUS modules and no VSIMM.  It has memory and a hard disk.
>
>I put in a TGX framebuffer and started it up.  The hard disk spun up and
>the keyboard worked, but I did not get any video at all.
>
>My suspicion is:
>
>- Sparc 20 will not boot up without an MBUS
>
>- It is set in headless mode and something has to be changed for it to use
>my TGX
>
>- It is broken
>
>I hope it is not the third one, but if any one has any thought/suggestions
>it would be welcome.
>
>Thanks,
>
>-------------------------------
>Steven Stillaway (steve at stillaway.net)
>a.k.a. steve at tuxconsulting.com
>_______________________________________________
>SunHELP maillist  -  SunHELP at sunhelp.org
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