Messages in this thread | | | Date | Mon, 12 Oct 1998 09:51:49 -0500 (CDT) | From | "Andre M. Hedrick" <> | Subject | Re: [OFFTOPIC] IDE maintainer? |
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On Mon, 12 Oct 1998, Shannon Hendrix wrote:
> > In message <Pine.LNX.3.96.981011025324.3574A-100000@Astro.Dyer.Vanderbilt.Edu>, > "Andre M. Hedrick" writes: > > > My speciality wrt to IDE was making off-board UDMA cards > > functional/bootable. Since all SMP PPros and P5 mainboards that I know > > of are limited to DMA mode 2, I needed direct UDMA support and upgradablity. > > Thus a need, an action taken. > > Not quite. My dual PPro system boots up identifying mode 4 IDE > drives just fine, and runs them just fine.
DMA mode 2 and PIO 4 are all but identical. The point that was made and you have verified is that the 440FX and 430HX are hardware limited to "DMA mode 2 and/or PIO 4".
Since there are no SMP P5 mainboards that I know of that are 430TX based, nor have I tested (or desired) the use of PPro's on the 440LX using CPU riser cards that only exist for TYAN 440FX based PII mainboards.
Since I am cheap and so are UDMA-IDE devices (relative to equal speed and through put SCSI devices), I hunted for quality UDMA add-on PCI cards.
My two SM P6DNF's and Tyan S1563D are limited to "DMA mode 2 and/or PIO 4". There are to many good SMP PPro/P5 boxes that need an out for the new IDE-devices. This is also required if you put a UDMA drive on a 430HX board that does not allow one to restrict the use of UDMA support on hardware that can not handle it.
> I've removed the IDE drive (it was just temporay space) since my > system is mostly SCSI. > > My motherboard is a Micronics W6-Li with the latest BIOS. > > -- > csh - shendrix@widomaker.com - http://www.widomaker.com/~shendrix/myresume.html > ---------------------------------------------------------------------- > "If you tell the truth, you don't have to remember anything" -- > Mark Twain > > - > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo@vger.rutgers.edu > Please read the FAQ at http://www.tux.org/lkml/ >
Cheers, Andre Hedrick The IDE-FNG for Linux The APC UPS Specialist for Linux
http://www.dyer.vanderbilt.edu/server/udma/ http://www.dyer.vanderbilt.edu/server/apcupsd/
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.rutgers.edu Please read the FAQ at http://www.tux.org/lkml/
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