On 24/06/12 14:46, Bob Tracy wrote:
> On Sat, Jun 23, 2012 at 08:35:38PM -0500, Bob Tracy wrote:
>> On Sun, Jun 24, 2012 at 11:59:15AM +1200, Michael Cree wrote:
>>> On 23/06/12 18:43, Bob Tracy wrote:
>>>> I recently retired an old AMD K6-III/450 system that had a serviceable
>>>> USB controller in it, so I tried transplanting it to my Alpha. The
>>>> kernel seems to detect it just fine and load the appropriate drivers,
>>>> but there's evidently a conflict of some kind between the USB card and
>>>> my Radeon 7500.
>>> The infamous PWS PCI DMA hardware bug maybe?
>>> Are you putting the USB card in the 64 bit or 32 bit slot? I think the
>>> recommendation is *not* to put anything involving data sto
>>> bit slots of any 1st generation PWS.
> Five card slots total. Top to bottom, we have three ISA-or-32-bit-PCI
> slots, and then the two 64-bit PCI slots. The QLOGIC SCSI card and the
> VIA USB card were in the second and third 32-bit slots repectively,
Oh! A VIA USB card. I had a USB card recovered from a PC at work that
proved unreliable in the PWS and the XP1000 and my recollection is that
it had a VIA chipset. I thought the card must be faulty, but maybe
there really is a problem with VIA USB and Alphas.
I'm currently running a no-brand USB/firewire card in the XP1000. Lspci
0001:04:00.0 FireWire (IEEE 1394): NEC Corporation uPD72874 [Firewarden]
IEEE1394a OHCI 1.1 Link/3-port PHY Controller (rev 01)
0001:04:01.0 USB controller: NEC Corporation USB (rev 41)
0001:04:01.1 USB controller: NEC Corporation USB (rev 41)
controller: NEC Corporation USB 2.0 (rev 02)
That works really well for me.
> my hand on the sharp sheet metal in the case,
Yeah, been there, done that.
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