There is a HUGE thread dediated to that cooler, iirc OnBoard created the thread with reviews, pictures, etc.
It's a great cooler, but yes the VRM cooling was a total failure. Same for the other solution at the time too (I think it was the Thermalright solution).
What OnBoard had done was cut the VRM section from the OE cooler and screwed it to the card. It cleared the AC Xtreme cooler fins, and had much better contact, along with a pretty dramatic drop in temps iirc.
I've never seen an issue or failure with Furmark and a GTX2xx card, doesn't mean it can't happen, but I can't imagine running Furmark all the time is a good idea regardless.
Edit, LAN_deRf beat me to it! Nice work!
