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Hello,

>>> - because CPU is 100MHz faster and IDE bus is 66MHz rather than 33MHz
>> (according to eBay and google's dmesg).
>>
>> That is strange.  It's possible that there were different boards
>> with different speeds, but I rather doubt it.
>>
>
> I have a dmesg (from an U10 running 3.0_BETA) saying:
> wd0 at atabus0 drive 0: <ST320420A>
> wd0: drive supports 16-sector PIO transfers, LBA addressing
> wd0: 19458 MB, 39535 cyl, 16 head, 63 sec, 512 bytes/sect x 39851760 
> sectors
> wd0: drive supports PIO mode 4, DMA mode 2, Ultra-DMA mode 4 (Ultra/66)

That's what the drive supports...

> wd0(cmdide0:0:0): using PIO mode 4, DMA mode 2 (using DMA)

And this is the transfer mode actually used.
The IDE chip only supports PIO4.

have fun
Michael
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