Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!mailrus!sharkey!aucis!easton
From: easton@aucis.UUCP (Jeff Easton)
Newsgroups: comp.sys.amiga
Subject: Re: GVP scsidev.device/power supply
Keywords: GVP scsi
Message-ID: <502@aucis.UUCP>
Date: 13 Sep 89 16:35:16 GMT
References: <8909102218.AA25513@postgres.Berkeley.EDU> <1003@faatcrl.UUCP>
Organization: Andrews University, Berrien Springs, MI
Lines: 28


[ discussion of GVP 500 and quantum 40S.  Power supply dies... ]

  From a Quantum Prodrive 40S/80S manual I have laying around ;-)

POWER REQUIREMENTS

 +5VDC	.5 Amps typical (idle)
	.6 Amps typical (seeking)
	.65 Amps max. (power up)

 +12VDC	.5 Amps Typical (idle)
	.8 Amps typical (seeking)
       1.6 Amps max. (power up)  <---- !!!

  This would explain why your power supply died on power up.  The drive
requires 22.45 watts on power up. This doesnt count the controller
cards current draw (it will be less).  

  The 1amp vs 5 amp fuse is proably in the primary side of the circuit
and doesnt give a clear indication of the supply's capability.  Look
for a sticker somewhere that states the current ratings for +5 and +12.

  I would guess you need a 12V, 2A and 5V, 2A supply.  This is just
a guess.

Jeff Easton		UUCP: !mailrus!sharkey!aucis!easton
Zenith Data Systems