[comp.sys.amiga] green screen on power up

pawn@wpi.wpi.edu (Kevin Goroway) (03/27/89)

I noticed that someone mentioned that they see a green screen on a 2000 with the 68020 board in it...
My 2500 does the same thing...do I have a ram problem? (I haven't noticed one,
but then again, I have 5 megs, and might not have ever used the bad area...)
Is this standard? (no ram error, just a colored screen?)
thanks!
-- 
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| Pawn@wpi.wpi.edu 		Worcester Polytechnic Institute, Mass, U.S.A. |
| Pawn@wpi.Bitnet		main() { printf("Hello World!\n); }           |
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andy@cbmvax.UUCP (Andy Finkel) (03/29/89)

In article <1526@wpi.wpi.edu> pawn@wpi.wpi.edu (Kevin Goroway) writes:
>I noticed that someone mentioned that they see a green screen on a 2000 with the 68020 board in it...
>My 2500 does the same thing...do I have a ram problem? (I haven't noticed one,

No...the time to worry is when the machine fails to boot, and
you are left staring at a colored screen (other than the normal
Workbench screen, I mean)
-- 
andy finkel		{uunet|rutgers|amiga}!cbmvax!andy
Commodore-Amiga, Inc.

"Give me a Standard large enough, and a Committee to discuss it,
 and I will prevent the Earth from moving."

Any expressed opinions are mine; but feel free to share.
I disclaim all responsibilities, all shapes, all sizes, all colors.

daveh@cbmvax.UUCP (Dave Haynie) (03/29/89)

in article <1526@wpi.wpi.edu>, pawn@wpi.wpi.edu (Kevin Goroway) says:
> Xref: cbmvax comp.sys.amiga:33735 comp.sys.amiga.tech:5021

> I noticed that someone mentioned that they see a green screen on a 2000 with the 68020 board in it...
> My 2500 does the same thing...do I have a ram problem? (I haven't noticed one,
> but then again, I have 5 megs, and might not have ever used the bad area...)
> Is this standard? (no ram error, just a colored screen?)
> thanks!

Sometimes A2500 type systems will display a Green or Blue-Purple screen for
a fraction of a second on powerup or during reboot.  Not sure exactly why,
but it's not generally a result of the diagnostic code, far as I can tell.
If you're getting a Green screen due to RAM failure, the machine won't boot.

Actually, I did find one real failure due to the A2620.  If you power up
AmigaOS with the MMU switched on, you fail, due to the lack of an MMU table
being available.  This shouldn't ever happen, since powerup is supposed to
clear the MMU registers.  But on one system, way back when, the MMU wasn't
always being reset, and we'd occasionally power up Green and hang until a
reset that actually cleared the MMU.  Nothing any release machine should have
to worrk about.

> =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
> | Pawn@wpi.wpi.edu 		Worcester Polytechnic Institute, Mass, U.S.A. |
> | Pawn@wpi.Bitnet		main() { printf("Hello World!\n); }           |
> =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
-- 
Dave Haynie  "The 32 Bit Guy"     Commodore-Amiga  "The Crew That Never Rests"
   {uunet|pyramid|rutgers}!cbmvax!daveh      PLINK: D-DAVE H     BIX: hazy
              Amiga -- It's not just a job, it's an obsession