my friend, you should try all distros, I love ideneb but for you, you should download zephyroth, kalyway , iatkos , leo4all, to try.
get all versions of distros. you need to try to get the best.
I am using ideneb with intel and it is good for me.
I will also try ideneb with SB700 patch when I have time to do.
I advice you for bios settings ,
you can try to disable parallel and serial ports in bios.
and when you see the first bios screen you will use ctrl+f1 combination to get bios extended settings. some options will be shown by bios. and I think it is in advanced something section or I dont know for now. you should find sb700 option to enable and just try maybe it can help.
it is nicholas' tip for me.
CPU is not big problem if it supports SSE2- SSE3 etc.
if you want to make order for your distro downloads.
you can think leo4all at first
ideneb , kalyway , zephyroth and others.
there is a fix for SB700 in leo4all but it doesnot give SATA2 support as 3.0 GBPS and installation takes really long time. 2.5-4 hours.
I hope you can do it

and share the experience.
can you write your System configuration?
Mainboard , CPU , Graphic card etc.