Leaderboard

This sounds simmilar to something that i have seen on several laptops that we carried. Something in the way the cpu or gpu were reporting their temperatures to the EC BIOS wasn't working right, or the ec bios itself was crashing or not detecting a good signal from the monitored devices, and it was entering a panic state (turnign on all fans to attempt to keep cool, then shutting off after a 10 count to protect the system.) The keyboard issue, though, is likely a purely mechanical issue. Ihave had a couple new laptops where the keyboard frame wasn't stamped quite right, and all the keys had to be pressed really hard to make contact. If i smashed all the keys down really hard, it would slightly bend the tabs that each key mounted on, and made it a lot easier to get them to register. Not for sure, but that's what it sounds like to me.

The keyboard issue sounds like the notebook wasn't happy with the EC , maybe someone flashed an incompatible EC rather than flashing the bios and EC at the same time. You mentioned that you suspect a poor connection for the GPU fan, but FN + 1 works. I'd still suspect that the sense wire on the GPU fan might not be working, maybe worth just plugging in another similar fan of you have it, as a test. Otherwise I know it's probably the same as pulling the CMOS battery, but try the combo of FN + D and then hit the power button. Worst case maybe flash the bios and EC firmware with an external hardware rom flash tool.