Date: Tue, 06 Aug 1996 21:00:19 -0700 From: "Michael L. VanLoon -- HeadCandy.com" <michaelv@HeadCandy.com> To: Kenneth Merry <ken@gt.ed.net> Cc: hardware@freebsd.org Subject: Re: P6 Natoma chipset Message-ID: <199608070400.VAA21062@MindBender.HeadCandy.com> In-Reply-To: Your message of Tue, 06 Aug 96 14:41:32 -0400. <199608061841.OAA14299@ulc199.residence.gatech.edu>
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>> I'm going to be buying a 200MHz Pentium Pro and motherboard (probably >> a dual-CPU) in the next week or two. I know the Orion chipset has >> some nasty bugs (like the 4MB/s PCI bus speed). > That particular Orion bug only affected the pre-B0 steppings of the >chipset. From Rod Grimes: (7/17/96, freebsd-hardware) >===== >One more time.... >Chip sets belowing stepping B0 have a PCI bus mastering bug that prevents >data tranfer rates to reach much beyond 4.4MB/s on the PCI bus. There >is a fundemental flaw in the design of the chipset/CPU interface logic >as well, that will never be fixed which has a significant impact on >CPU/Memory bandwidth. >===== Read the last sentence again. Actually, what you quote says that there is a design deficiency which will never be fixed in the Orion chipset. The Orion chipset just makes me nervous... I'll go with the Natoma. > The SuperMicro P6DNF looks pretty spiffy, too, but I'd rather have >more PCI slots. (One of the ASUS boards has 5, and the other 6 usable PCI >slots.) Also, the ASUS boards have NCR SCSI bios, which would be nice to >have. I just ordered one. We'll see how spiffy it is in a week or so. :-) > Has anyone seen the Pentium Pro chips with the 512K L2 cache? The >only place I've seen them advertised is ALR. No... I have a feeling they would be obscenely expensive if you could find them. ----------------------------------------------------------------------------- Michael L. VanLoon michaelv@HeadCandy.com --< Free your mind and your machine -- NetBSD free un*x >-- NetBSD working ports: 386+PC, Mac 68k, Amiga, Atari 68k, HP300, Sun3, Sun4/4c/4m, DEC MIPS, DEC Alpha, PC532, VAX, MVME68k, arm32... NetBSD ports in progress: PICA, others... Roll your own Internet access -- Seattle People's Internet cooperative. If you're in the Seattle area, ask me how. -----------------------------------------------------------------------------
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