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- Path: news.cyberhighway.net!usenet
- From: madmaxx@mailhost.cyberhighway.net (Marv Birkinbine)
- Newsgroups: comp.sys.amiga.hardware
- Subject: Re: Strange A4000 Problem
- Date: 29 Jan 1996 04:33:13 GMT
- Organization: CyberHighway Internet Services
- Message-ID: <1583.6530T72T665@mailhost.cyberhighway.net>
- References: <dieter.23vn@prosys.co.at>
- Reply-To: madmaxx@mailhost.cyberhighway.net
- NNTP-Posting-Host: pm1-15.cyberhighway.net
- X-Newsreader: THOR 2.21 (Amiga;TCP/IP) *UNREGISTERED*
-
-
- >Hello
-
- >I have a strange Problem with my A4000:
-
- >It`s working quite well, without zorro cards. If I install zorroII
- >Cards which are not using DMA (like a Tandem Conrtoller, or the
- >A2410 Tiga card using a non DMA software), everything is working fine.
- >If I install a Picasso II, the display is displaing a software error,
- >as soon as binddrivers is starting the picasso software out of the
- >expansion drawer.It`s not a picasso fault, after installing a GVP SeriesII
- >SCSI HDcontroller,I got the same problem when GVPscsictrl is accessing the
- >Harddisk ...
-
- >Changing the buster didn`t help :-(
-
- >What else can effect the ZorroII DMA ????
-
- >Thanks for your help
- > Dieter
-
- Dieter, your problem is not in the ZorroII DMA. the two boards you mention
- require a stable power berst and a sustained power sig. to function properly
- the A4000 desktop power supply in not stable and only has a peak of 4.6 V
- and is only 135w. barly enough to power the motherboard you need 5.5 peak 4.9
- constent. and a min. 200w-300w.
-
- marv
-
-
-
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