Which Palit GTX560 do you have? Pic 1 or pic 2 or pic 3?
I guess it is the standard version, ie pic 3.
This card has the nastiest cooling design, ie it exhausts hot air radially in all directions due to the arrangement of the fins structure of the heatsink (see red arrows
). This means, exhausted hot air has a high chance of mingling with the card's air intake. This results in non desirable re-circulation of hot air and gives higher than optimal temperature.
To better supply fresh air to the card's intake fan:-
Blowing onto the card with a large 200mm fan side panel fan might just promote further mixing of hot and cold air. Instead, I propose you to use a strong intake 120mm fan at case bottom. This fan will directly blow air to the card's intake fan in the proper direction (ie perpendicular to the card).
To better extract the hot exhausted air from the card to the outside:-
A clear and distinct airflow path is needed so that air will not have a chance of remixing. I propose a 'top exhaust' solution. See pic 4.
This calls for:
re-orient your 212+ vertically upward
, exhausting through the top exhaust fans (use 2x120mm fans to replace the stock 200mm fan)
install a 120mm fan at the side panel upper
position, to supply fresh air to the 212+ (pic 5)
The 2 exhaust 120mm fans at case top will provide strong upward draft, lifting up all hot air exhausted from the GTX560 to the outside of case.
(Some portion of the 560's hot exhaust might go through the 212+ but this is inevitable and the impact should be minimal. In fact, this is already happening with your current configuration and is worse as probably most of the hot air is sucked into the 212+ by its push fan.)