On Mon, 08 Jan 2001 16:02:16 -0800, you wrote:
Are they ISA PNP cards ?? if so the PNP isolation process will tend to assign the
same IO address
to the same card, irrespective of its bus slot etc - the ordering is based on the MAC
address but
its not a simple numeric comparison so it may not be the lower one first, but it
should be
consistent.
Bear in mind also that some ISA PNP cards can be "fiddled" with by the BIOS even if
the card is in
non-pnp mode --- I've been caught out by that one before by a crappy BIOS that thought
it knew
better.
Most drivers will scan along the PCI bus slot, by slot and ISA buses using a table of
preffered IO
addresses. But a PCI machine may have several PCI buses on different bridge chips so
the slot
ordering may not be as simple as it seems
>Although they are ISA, I still think it has a bearing on which card is which. I am
>using an old mini tower case with a 100Mhz Pentium Mother board.
>
>ETH1 has the following settings:
>
>MAC of 00:60:08:37:1E:15
>INT 5
>Base 0x210
>
>ETH0 has the following settings:
>
>MAC of 00:20:AF:D5:53:AD
>INT 10
>Base 0x300
>
>Although both cards are 3c509's one (eth1) has an AUI connector.
>
>I am convinced that when I had them around the other way, the ETH1/0 switched. ETH1
>is in the bottom slot. If I am wrong, then it looks like the MAC may be the deciding
>parameter.
>
>
>-----Original Message-----
>From: Stan Simmons [SMTP:[EMAIL PROTECTED]]
>Sent: Tuesday, January 09, 2001 1:59 AM
>To: [EMAIL PROTECTED]
>Subject: RE: [STN] 3Com 3c509 -> eth0 not found
>
>The only problem with that theory is that the 3C509 cards are ISA not PCI.
>
>> -----Original Message-----
>> From: Lyle Giese [mailto:[EMAIL PROTECTED]]
>> Sent: Monday, January 08, 2001 9:32 AM
>> To: '[EMAIL PROTECTED]'
>> Subject: RE: [STN] 3Com 3c509 -> eth0 not found
>>
>>
>> It can depend on two things, but usually there is an order to scanning the
>> PCI slots. Usually its from the slot closest to the power suply connector
>> towards the other edge of the motherboard. There is also an order to
>> scanning for bios's and that's from low address to high address
>> and this is
>> how you install multiple scsi controllers and controll which is selected
>> first.
>>
>> It's not random, but it scans the pci slots in a certain order.
>
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Rgds,
Bob
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