Path: utzoo!utgpu!jarvis.csri.toronto.edu!cs.utexas.edu!tut.cis.ohio-state.edu!ucbvax!CMUVM.BITNET!345EEQX
From: 345EEQX@CMUVM.BITNET (Robert Devantier)
Newsgroups: comp.sys.amiga
Subject: A2000 Power Supply
Message-ID: <9001230403.AA06024@jade.berkeley.edu>
Date: 23 Jan 90 03:41:45 GMT
Sender: daemon@ucbvax.BERKELEY.EDU
Lines: 40

Since someone posted a notice saying they had problems with the power
supply in a German-made B2000, I thought I should go and test my power
supply.  I should say I have had no problems with the computer in the
two years plus that I have owned it, but did have a friend who had one
from the same batch that the power supply was flaky.

My question to the net is: Should I be having a problem when the power
supply is under the following load?

System: German B2000 (4.1 rev upgraded to 4.5 level, including the new
                      MOS Gary and Fatter Agnus)
               ProRam 2000 w/2 meg 100ns RAM
               ProDrive DF1, A-1010 (full-height) DF2
               A2088 w/ an external 1020 drive and a Tandon 20-meg
                   hard-card.
               Processor Accelerator.

The situation:  When I have all three Amiga drives formatting, and doing
                a DIR OPT A of the Amiga JH0 partition of the Tandon,
                all I get from Drive A or B of the PC side is an
                error reading drive x.  If any one of the devices stop
                their access, the PC drives magically work OK.

Am I experiencing the limit of what my Power Supply can handle?  I know
this is the extreme case on power usage, but I have 4 meg of chips
coming, and a 68030 board is down the road somewhere, along with some
sort of A2091 system with an external HD.  Should I start saving up now
for the $95 power supply, or just stop lighting my room with drive
activity lights?  I would think 200 Watts should handle all of this.

Please respond directly, or the nets.  I will post a summary of any
personal mail if there appears to be a need.  I would have posted this
to .tech, but Bitnet sort of limits my scope of the world...

Thanks for the help in advance.

-----------------------------------------------------------------
Robert Devantier | 345EEQX@CMUVM.Bitnet | Student Programmer
Central Michigan University | {!Amiga!} | Computer Services
"It doesn't matter what I think, they'll sue me for what I said."