I installed 13.10 on my rMBP 10.1. The install went well, it looks beautiful, and it overheats

I installed rEFInd with "./install.sh --alldrivers". From the Live Stick I started the installer with "ubiquity -b" to install without a bootloader. I chose "Install alongside OSX" and installed. Everything looked good, but after a while the logs started filling up with "Package temperature above threshold, cpu clock throttled".

I know little about BIOS/EFI/UEFI, but from googling it seems it can be relevant, maybe because of NVIDIA drivers? I had dual boot before the latest OSX upgrade broke it. That was Ubuntu 13.04 with Grub, and I didn't have any heat issues then.