Weren't those using nForce chipsets which were notorious for failures, breakdowns and failures? I think they were...
The 750i/780i/790i chipsets ran pretty hot and were basically warmed over 650i/680i's. Nvidia basically gave up on enthusiast chipsets after Intel screwed them over by changing the VRD specification just before the Wolfdale/Yorkfield (Penryn) architecture launched. The 650i/680i was supposed to have full 45nm support (some vendors like
Gigabyte with their N680SLI-DQ6 got slapped so badly for advertising the board as such that they never even produced a 700 series chipset board), but it was pretty clear Intel wanted Nvidia out of chipset business long before Intel denied them a continuance of the licensing deal when Intel moved from FSB to QPI/DMI. Cue lawsuit, subsequent settlement, and revised licensing deal.
