I am running a 5yr old Dell 4400 that recently gave me the boot failure system halted black screen. It appears to be a heat related problem, as the computer will work normally if I let it sit for a day, but always freezes up after 5-10 minutes of use. If I try to reboot, I get the bfsh black screen message. It is really dusty inside. I am not too hardware savy, so don’t know what product I should use to clean it out with. In reading around it sounds like cleaning it out and adding a fan on the heat sink might help. Trouble is, I don’t know what the heat sink from the hard drive. Any advice would be greatly appreciated…
