[gentoo-user] OT: mobo and Ati video

[James <wireless@tampabay.rr.com>]

Hello,

I was not certain that this posting is OT, so
I labeled it that way, to keep everyone
happy by default. I've been scrounging
newegg to build a fast (AMD_ATI) workstation
that is also cost effect (much thanks to Dale).

I'm a bit obsessive, so be forewarned.

ISSUE:
Ati video (mux/mix)ing video cards:

Crossfire is but one ati video technology
that allows a mobo to mix(use) multiple
video processors (GPUs) on the same mobo.

I thought I had found my mobo:
http://www.gigabyte.com/products/product-page.aspx?pid=3516#ov

http://www.newegg.com/Product/Product.aspx?Item=N82E16813128435


This snippet gives me pause:

ATI Hybrid Graphics is a technology umbrella brand encompassing several
technologies, such as ATI Hybrid CrossFireX™, ATI SurroundView™, ATI PowerPlay™,
etc. that allow both an AMD integrated graphics processor and a discrete
graphics processor to work co-operatively on an AMD based system to provide
enhanced gaming performance, productivity and platform efficiency to the
mainstream PC.
* Please use ATI Hybrid CrossFireX certified DX11 VGA card (i.e., ATI Radeon HD
5450, etc.), detail information please refer to AMD website.


But I want to use this fanless video card:
SAPPHIRE Ultimate 100289UL Radeon HD 5670 1GB 128-bit GDDR5 PCI

http://www.newegg.com/Product/Product.aspx?Item=N82E16814102902

Questions:

So will the onboard  ATI 4290 work with the 5670,
under Gentoo? 

If so ati-drivers only or will the opensource (radeon
drivers too)?

Anyone got experience with this video card or mobo?
Will they work together (which video driver)?

I've had Asus Crossfire mobo's that are very picky 
about the video card.

Guidance and comments are most welcome.
(Naturally the system will run Gentoo)...


James