Hi,

I heard of several drives that were incompatible to the IDE 
standards(?) causing problems with some ATA66 chipsets. Maxtor 
drives were on all these lists, I have not heard of IBm drives to 
cause problems for compitibility reasons. When you connect both 
old drives to the BX controlled IDE channels and the IBM to the 
HPT366 I see no reason such compatibility problems could cause 
problems (as long as the MAX drives work fine on the 1st and 
second controller). I do not know the exact place I got this 
infotrmation from, but you should find it at the faq sections of some 
mobo manufacturers, chipset producers and PCI IDE controller 
card manufacturers. You could try out http://www.bp6.com (slow but 
check the discussion forums and please ignore the silly comments). 
Be shure your power supply can handle the power consumption (if 
you have two CPUs installed do not run them with an increased core 
voltage) and be aware, that changing the FSB of the board to 
anything faster than 66MHz can cause timing problems on the IDE 
bus.

HTH

mike
On 24 Aug 2000, at 14:28, Jam wrote:

> Hi,
> 
> When I add 3rd IDE drive to my BP6, current NetBSD starts
> hanging up with following console message.  NetBSD box shows
> 3 following lines, then IDE light brights forever.  Break
> through serial console doesn't work.  I have to push reset
> button.
> 
>   pciide1:0:0: lost interrupt
>           type: ata tc_bcount: 65536 tc_skip: 0
>   pciide1:0:0: bus-master DMA error: missing interrupt, status=0x61
> 
> Following 4 other messages are other hang-up time messages.
> I tested following configurations: 1) Max40 on IDE3-1, Max60
> on IDE3-2, and DJNA on IDE4-1 (note: IDE4-1 means primary of
> fourth IDE channel.  BP6's third and fourth IDE channels are
> UDMA66 channels).  2) Max40 on IDE1-1, Max60 on IDE3-2, and
> DJNA on IDE4-1.  3) Max40 on IDE1-1, Max60 on IDE1-2, and
> DJNA on IDE3-1.  Each configuration causes hang-up.
> 
>   pciide1:0:1: lost interrupt
>           type: ata tc_bcount: 57344 tc_skip: 0
>   pciide1:0:1: bus-master DMA error: missing interrupt, status=0x61
> 
>   pciide1:0:1: lost interrupt
>           type: ata tc_bcount: 8192 tc_skip: 0
>   pciide1:0:1: bus-master DMA error: missing interrupt, status=0x61
> 
>   pciide0:0:0: lost interrupt
>           type: ata tc_bcount: 8192 tc_skip: 0
>   pciide0:0:0: bus-master DMA error: missing interrupt, status=0x21
> 
>   pciide0:0:0: lost interrupt
>           type: ata tc_bcount: 8192 tc_skip: 0
>   pciide0:0:0: bus-master DMA error: missing interrupt, status=0x21
> 
> Currently, I'm using all three drives on IDE1 and IDE2.  It
> works fine, but I like UDMA66 support.  Is there any
> suggestions or helps?  Thanks.
> 
> Regards,
> -- Kazushi
>