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- Path: sparky!uunet!mcsun!uknet!gdt!aber!aberfa!pcg
- From: pcg@aber.ac.uk (Piercarlo Grandi)
- Newsgroups: comp.sys.ibm.pc.hardware
- Subject: Re: Adaptec Probs...
- Message-ID: <PCG.92Aug27171238@aberdb.aber.ac.uk>
- Date: 27 Aug 92 17:12:38 GMT
- References: <1992Aug21.083258.24383@rose.com>
- Sender: news@aber.ac.uk (USENET news service)
- Reply-To: pcg@aber.ac.uk (Piercarlo Grandi)
- Organization: Prifysgol Cymru, Aberystwyth
- Lines: 20
- In-Reply-To: brad.thornborrow@rose.com's message of 21 Aug 92 09: 32:56 GMT
- Nntp-Posting-Host: aberdb
-
- On 21 Aug 92 09:32:56 GMT, brad.thornborrow@rose.com (brad thornborrow) said:
-
- thornborrow> I have an Adaptec 1542b controller (Dec '91 Roms) on an AMI
- thornborrow> 386-40 board & a Paradise 1024 VGA card. With no other
- thornborrow> hardware on board, I will get an error with any backup
- thornborrow> software that uses High Speed DMA.
-
- Firstly, you are given several DMA speed options simply because not all
- configurations support High Speed DMA. So you can simply resign yourself
- to the fact that you have to use a lower backup speed.
-
- Otherwise, you have probably got one of the many floppy drives that
- cannot stay off the bus for more than 7 microseconds, otherwise they
- will report data overrun. In the case you can just try to lower the
- Adaptec's bus on time from the default of 11 to 7 microseconds. To do
- this you just specify a neat little parameter to aspi4dos.sys.
- --
- Piercarlo Grandi | JNET: pcg@uk.ac.aber
- Dept of CS, University of Wales | UUCP: ...!mcsun!ukc!aber-cs!pcg
- Penglais, Aberystwyth SY23 3BZ, UK | INET: pcg@aber.ac.uk
-