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- Path: sparky!uunet!channel1![jun.hashimoto@channel1.com]
- From: "jun hashimoto" <jun.hashimoto@channel1.com>
- Newsgroups: comp.sys.ibm.pc.hardware
- Subject: re:opti owners,
- Message-ID: <1992Dec18.1147.26277@channel1>
- Date: 18 Dec 92 13:55:05 EST
- Reply-To: "jun hashimoto" <jun.hashimoto@channel1.com>
- Distribution: comp
- Organization: Channel 1 Communications
- Lines: 49
-
- P >Hopefully OPTI owners will come forward and help compile a list
- P >of working chipsets and non-working chipsets. Possibly with the
- P >hardware that caused problems, or supected hardware that worked fine.
- P >Maybe OPTI can pick up the ball from there.
-
- I have 2 mother boards, one has 82C481/82C482 chip set (call Machine A)
- and other has 82C493/82C392 (Write Back Cache) chip set (call Machine B).
-
- P >The common threads I've seen so far:
- P >
- P >1. People with problems mostly state they are using 486 boards.
- P >2. People with problems mostly state they have a write-back cache.
- P >3. People stating non-write-back caches have had better compatibility.
-
- Yes, Machine B has some compatibility problem.
-
- P >4. The most problematic piece of hardware seems to be the Gravis Ultra
- P > The majority of disgruntled GUS owners have OPTI chipsets.
-
- Machine A works perfectly with GUS, but B hangs up while GUS setup.
-
- P >5. The SB-Pro has also had problems with the OPTI chipset.
-
- I've never tried SB-Pro on Machine B, but A works fine with SB-Pro.
- And B can work with SB 1.0 (non-Pro).
-
- P >6. Adaptec SCSI controllers have problems with very fast disks, or
- P > Multiple devices on the controller (High DMA throughput)
-
- Machine B works well with AHA-1542B and Toshiba CD-ROM.
- Machine A has 4 SCSI devices (2 HDDs, 1 CD-ROM, 1 Tape) with AHA-1542B.
-
- P >7. The date of the chipset seems to bee irrelavent.
-
- I don't know.
-
- P >8. Some have claimed that if the cache is disabled, compatibility retu
-
- Never tried.
-
- --
- Jun Hashimoto, Tokyo, Japan
-
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- --- WinQwk 2.0b#295
- --
- Channel 1 (R) Cambridge, MA
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