Thanks for the help, but this cooler only has AMD mounting clips, so it only allows to install the cooler this way. I was trying to find an additional mounting bracket as to change the orientation of the cooler, but unfortunately I can't find one so I am stuck with this flow or the only other option is to change the heatsink itself.
As for the GPU, I have a PCI-E x4 lane (so I am sure the low bandwidth will throttle the card), the minimum fps in Battlefield 3 I get is around 28, so I take i moving from x16 to x4 will effect performance?
I don't know if you can see on the picture, but I have two 140mm intake fans on the front of the case, I have one space for my DVD drive, the whole front is fans

it cools my HDD well, I have moved cables to get at least some air through the HDD area. But the visible fan blows air freely to the CPU area with no obstructions.
Also I tried with the bottom fan, it didn't do much except for noise, its difficult to get space under the case.
Think I should change the airflow completely? Or buy a new cooler to allow for horizontal mounting?
I have a lot of dust filters so dust won't be a problem, I have fan controlling so noise would never be a problem also.
It is a shame some coolers only come with the standard AMD mounting clips, thats the only problem I have with AMD, only allows one installation direction.
With the CPU fan on it does actually help cool the CPU down, but I can see where you're coming from, its basically sucking hot air from the GPU. Happy days for the GPU though

So, think its worth getting a new cooler or completely swapping the airflow around?
Thanks for the help!!
Edited by mikeo01 - 11/6/12 at 1:35am