Radeon FireMV 2400 PCI

Erwin Rol mailinglists at erwinrol.com
Fri Jan 27 04:44:18 PST 2006


Hey Roland,

before I bought the card I had some mail exchange with some ATI FireMV
support person. On my mail with the question if the FireMV has just two
M9 chips on it, I got the following answer.

--- 
Erwin,
You are correct. Since FireMV 2400 PCI uses two M9 chip, it's similar to
M9cards/MB.

Best Regards,

Paul
----

Of course I can re-ask to try to find out the exact core (RV250 or
RV280) and if it is maybe a M9+ instead of a M9. 

- Erwin

On Fri, 2006-01-27 at 13:09 +0100, Roland Scheidegger wrote:
> Erwin Rol wrote:
> > On Fri, 2006-01-27 at 04:21 +0100, Roland Scheidegger wrote:
> >> Erwin Rol wrote:
> >>> My question is are there any databooks, documentation etc. on the
> >>> M9 chips available without a NDA?
> >> Well those are just standard rv280 chips (in the pci versions of
> >> the firemv cards, in contrast to the rv370 on the pci-e versions).
> >> At least
> > 
> > Actually i think the M9 is a RV250 chip and not a RV280, at least
> > that is what lspci tells me.
> lspci is likely wrong in this case. I've noticed that when trying to
> clean up that pci id list, the same pci id is used for two different 
> devices (i.e. 4c66/4c6e) :-(. And in contrast to some phantom devices, 
> both actually seem to exist. Only the subsystem id is different I 
> believe between the firemv 2400 pci and some radeon 9000 mobility M9. A 
> bit strange that two different chips would show up with the same id, 
> unless that M9 is wrong and it's actually a M9+ (catalyst driver, 
> neither normal nor mobility, does not support this chip so I don't know 
> how it treats it), or the catalyst .inf file could be wrong too. This 
> actually is a problem, while the chips are very similar they are treated 
> slightly different in both ddx and dri, and both those components 
> differentiate only by pci id.
> 
>             +-0c.0-[0000:02]--+-01.0
>             |                 +-01.1
>             |                 +-05.0
>             |                 \-05.1
> 
> Ah, shows up with 4 ids then.
> 
> Roland





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