am i correct in seeing that you have two harddrives on ide0? one new, one old? the new one supports dma while the other does not?
if so, doesn't mixing dma and pio drives on the same channel require the channel to reduce speed? i could be wrong about this. moose btw, what transfer rates are you seeing? On April 24, 2002 01:12 pm, you wrote: > This is what it says.... > > ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx > VP_IDE: VIA vt82c686b (rev 40) IDE UDMA100 controller on pci00:07.1 > ide0: BM-DMA at 0xd000-0xd007, BIOS settings: hda:DMA, hdb:pio > ide1: BM-DMA at 0xd008-0xd00f, BIOS settings: hdc:pio, hdd:pio > hda: MAXTOR 6L020L1, ATA DISK drive > ide0 at 0x1f0-0x1f7,0x3f6 on irq 14 > hda: 40132503 sectors (20548 MB) w/1819KiB Cache, CHS=2498/255/63, UDMA(33) > > > -Jay > > Quoting Charles A Edwards <[EMAIL PROTECTED]>: > > On Wed, 24 Apr 2002 11:38:33 -0700 > > > > Larry Sword <[EMAIL PROTECTED]> wrote: > > > Check your /var/log/dmesg for a line (something like): > > > > > > Uniform Multi-Platform E-IDE driver Revision: 6.31 > > > ide: Assuming 33MHz system bus speed for PIO modes; override with > > > > idebus=xx > > > > That line does not denote the UDMA state of a hd. > > It is the bus speed for all pci devices and can perform at no higher than > > 33mhz. > > AGP slots and ide controllers (both of which are also pci slots) overcome > > this by use of additional chips and instructions to increase their speed, > > but the baseline still will remain at 33mhz. > > That is why if your MOBO supports only UDMA66 you can still use udma100 > > or even udma133 hds but at no higher level than udma66 unless you make > > use of an add-on controller card which contains the necessary chipset and > > instructions to provide for udma100/133. > > > > > > Charles > > Microsoft is not the answer. Microsoft is the question. 'No' is the answer! > > > ------------------------------------------------- > This mail sent through IMP: http://horde.org/imp/ ---------------------------------------- Content-Type: text/plain; charset="iso-8859-1"; name="message.footer" Content-Transfer-Encoding: 8bit Content-Description: ----------------------------------------
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