There is a new firmware updater for the Sonnet Tempo card. The software can do 3 things. • remove the ROM image altogether • replace the ROM image with the original ( a combined EFI/BIOS image) • replace the ROM image with a BIOS only image It seems this updater is just to remove the Mac EFI (or recover it). Not really an upgrade. And it won't fix anything for the Mac Pro (e.g. the boot manager). Am I correct?