Hows it goin? Welcome to PCreview...
Apparently there is definately an Arctic cooler with just 2 mounting pins for the card- as far as I know, all 5700LE`s have just 2 mounting pins, the PNY card is prabably normal spec, u just got unlucky with the cooler, like Mr Flops.
I have a Zalman Northbridge cooler that has adjustable attachment pins. ie the mounting holes can be moved because they`re on runners. It`s also bigger than the heatsink on the 5700LE I have (Gainward) but i`m having trouble setting up a fan for it.
I also had an idea of fitting a CPU heatsink to the card, using some inventiveness and.. probably a bit of luck. If I manage it, i`ll post some pics.
As for cooling the memory, I was looking at cutting a CPU heatsink in 2 and using thermal epoxy or similar to place the Heatsink bits across the memory to help with overclocking. Again, if I manage it i`ll let y`all know.
Kenny
P.S.... if you find a way of making a cradle, you could maybe try an 8cm fan underneath the card, blowing up. Better airflow and a lower RPM... cant hurt