home *** CD-ROM | disk | FTP | other *** search
- Path: sparky!uunet!gumby!wupost!usc!randvax!edhall
- From: edhall@rand.org (Ed Hall)
- Newsgroups: comp.sys.ibm.pc.hardware
- Subject: Re: DMA on PC motherboards
- Message-ID: <4069@randvax.rand.org>
- Date: 13 Dec 92 20:33:05 GMT
- References: <1992Dec11.051823.3702@fasttech.com> <Bz3yB0.MC8@srgenprp.sr.hp.com> <24370@galaxy.ucr.edu>
- Sender: news@randvax.rand.org
- Organization: RAND
- Lines: 47
- Nntp-Posting-Host: ives.rand.org
-
- In article <24370@galaxy.ucr.edu> insom@galaxy.ucr.edu (Chris Ulrich) writes:
- >
- > I have been using a 1542A at the 8mhz dma speed with no problems
- >at all. It has an eteq chip set, and is a 40mhz 386.
- > I get tired of these absurd jinggoistic accusations about cheap
- >"imported" clones. I have had more problems with propritary
- >modifications to a standard to get more "performance" out of a
- >system at the cost of making the bloody system impossible to fix
- >or upgrade. Systems from the tiawaneese clone venders are as good
- >or bad as any other system you might buy.
-
- Who said anything about "imported" clones? A few years back one of
- the motherboards known to have problems with bus-master cards was
- made by a well-known American manufacturer. (They've since cleared
- up the problem, so I don't want to prejudice anybody by naming them.)
-
- The issue here is between getting a product known to work, and one
- which is cheaper but unknown. If you can find an inexpensive MB
- which is known to be reliable, by all means, get it.
-
- > My advice? Take the card to the store you are going to buy from,
- >and try using it. If they dont let you, take your money elsewhere.
-
- "Try before you buy" is generally sage advice. But there is a catch:
- people tend to build their systems piece-by-piece, and often wind up
- adding cards to their system that didn't even exist when they bought
- it (for example, the problems some folks are having with the Gravis
- UltraSound and certain OPTI-chipset motherboards; the UltraSound
- hasn't even been out two months).
-
- In my case, I didn't have a bus-mastering disk controller or DMA-based
- audio card before I bought my motherboard, although I planned to get
- them. So I bought a well-known, conservatively-designed MB to save
- myself future grief. And it happened to be from an American company.
- Since then, I've added these devices (and a few other odd-ball cards)
- and had zero trouble. If I had already had these cards, it would have
- made sense to get a cheaper MB with a money-back guarantee. Instead, I
- paid a bit more and got the use of the faster CPU while I saved for the
- other components, (relatively) confident that they would work when I
- finally added them.
-
- Your situation may be different. Or you might feel differently about
- the risks involved. I don't see anything to get quite so upset about,
- however.
-
- -Ed Hall
- edhall@rand.org
-