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- Newsgroups: comp.sys.apple2
- Path: sparky!uunet!math.fu-berlin.de!informatik.tu-muenchen.de!hphalle6!behrenss
- From: behrenss@Informatik.TU-Muenchen.DE (Soenke Behrens)
- Subject: Re: SCSI cards
- References: <1992Sep10.181658.22524@athena.mit.edu>
- Sender: news@Informatik.TU-Muenchen.DE (USENET Newssystem)
- Organization: Technische Universitaet Muenchen, Germany
- Date: Thu, 10 Sep 1992 22:46:40 GMT
- Message-ID: <behrenss.716165200@hphalle6>
- Lines: 33
-
- tracadas@athena.mit.edu (Philip W Tracadas) writes:
-
-
- >Can someone say something about the RamFast SCSI and the Apple SCSI and any
- >other apple // SCSI cards?
-
- The RF is the fastest, also it can DMA to non-DMA compatible memory (read:
- 8MB cards, or old cards) if no TWGS is in the system. The Apple SCSI card
- does not use DMA, is slow and does not benefit of all drivers: Forget it.
- The Apple HS SCSI card uses DMA, is not as fast as the RF, but has a more
- flexible driver concept. So, if you need to connect a Scanner or such,
- you are (at the moment) better off with the HS SCSI than the RF.
- If you just want a HD or two and a tape for backup purposes, go with
- the RF. Get a Rev.D 256k or a "refurbished" Rev.C ... the latter costs
- only $100, I believe, but is bigger than the Rev.D and not upgradeable to
- 1Meg cache (though many people claim the the extra cache does not speed
- up execution).
-
- >Also, what about the Roger Wagner Publishing deal on 4mb memory? Is his
- >memory card compatible with everything else? What makes a good memory card?
-
- Should be. 4MB cards are easy to do. A good card adheres to the rules (all
- newer cards do) and is therefore DMA compatible and, of course, is
- mechanically OK. So, apart from _very_ old cards AE once did, all of
- them should be just fine.
-
- Soenke
-
- --
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