Thanks for your reply. I did read the documentation, but -c1 seemed to work. I did set keep over reset (uh oh). I cannot access these drives now even at the BIOS level, even with DOS tools and this is way before DMA gets turned on. Does the keep over reset change something in the drive or some other bit of hardware? Is there some way to reset these drives, like resetting a motherboard?
Darren
At 05:21 PM 2/4/2003 -0800, you wrote:
On Tue, 4 Feb 2003, Darren R. Gitelman wrote: > /sbin/hdparm -c1 -d1 /dev/hdbIt often pays to read the documentation: -c Query/enable (E)IDE 32-bit I/O support. A numeric parameter can be used to enable/disable 32-bit I/O support: Currently supported values include 0 to disable 32-bit I/O support, 1 to enable 32-bit data transfers, and 3 to enable 32-bit data transfers with a special sync sequence required by many chipsets. The value 3 works with nearly all 32-bit IDE chipsets, but incurs slightly more overhead. Note that "32-bit" refers to data transfers across a PCI or VLB bus to the interface card only; all (E)IDE drives still have only a 16-bit connection over the ribbon cable from the interface card. If you haven't set keep-over-reset, try changing the value of I/O support to -c3 instead of -c1. If you are completely unable to access your drives, even with DMA turned off at boot, you may need to find out how good Dell's technical support or warranty service really is.
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