|I had the unit taken to a local repair shop to check out the issue. HP Support was absolutely no help, big surprise there.|
The guys at this place kept it for a week and then called me back. They had found the problem, and it is apparently one that HP knows about. The graphics card runs hot and the internals of the 9819 are designed in a way that the fan does not adequately cool the motherboard and graphics card. The internals heat to unacceptable levels and eventually melts connections on the motherboard. At this point the motherboard is toast, and the shop I took it to said they don't even stock the brand of motherboard. The repair was going to cost a lot more than the actual computer was worth, what with a new board and a bunch of new internals.
I took the $50 they offered me for the parts that weren't complete crap, removed the hard drive to use as an external HDD with an enclosure and bought an ASUS EEE netbook.
I researched the issue further and discovered that HP enacted an Extended Service Warranty for some of their DV series laptops. They have a problem with the BIOS that causes the fan to not function properly. This causes intense overheating issues. Despite this being the exact problem I encountered with my laptop, my machine is not included in the Extended Service Plan because its number is not on the list held by customer service.
This is the last HP product I'm going to buy. I absolutely loved the DV9819, but the customer service experience I had with HP has turned me off of their product.