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- From: darrylo@hpsrdmo.sr.hp.com (Darryl Okahata)
- Subject: Re: DMA on PC motherboards
- Sender: news@srgenprp.sr.hp.com (placeholder for future)
- Message-ID: <Bz3yB0.MC8@srgenprp.sr.hp.com>
- Date: Fri, 11 Dec 1992 18:35:23 GMT
- Reply-To: darrylo@sr.hp.com
- References: <1992Dec11.051823.3702@fasttech.com>
- Organization: Hewlett-Packard / Center for Primal Scream Therapy
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-
- Bohdan Tashchuk (zeke@fasttech.com) wrote:
-
- > To a first approximation, you get what you pay for. If you buy the cheapest
- > Tiawanese clone you can find, you deserve to have it fail bus mastering.
-
- I don't know if using cheap motherboards is the problem, but I
- agree with the above quote. I've been using a high-quality (read:
- expensive) AMI motherboard -- where the ENTIRE motherboard, and not the
- just BIOS, is made by AMI -- and I haven't had any DMA hardware problems
- with my Adaptec 1542A. I have had problems when multiple DMA bus
- masters try to access the bus (causes memory refresh starvation,
- resulting in parity errors), but this is a problem with the PC
- architecture.
-
- -- Darryl Okahata
- Internet: darrylo@sr.hp.com
-
- DISCLAIMER: this message is the author's personal opinion and does not
- constitute the support, opinion or policy of Hewlett-Packard or of the
- little green men that have been following him all day.
-