These two problems still bother me a lot up to now in Asus Z87 Deluxe Dual MB plus Nvidia GTX 780 card after successful installation of Mavericks 10.9 DP1->DP8.
After logout from Mac OSX and login Windows 7 or 8, always loss of onboard WiFi 802.11ac/n/g/b/a functions in Windows 7 or 8.
The only way to regain WiFi function is changing physical RAM size by removal of one DDR3 ram then rebooting.
Since the beginning there is no way for 32-bit Windows 7 or 8 to correctly identify its RAM size.
It always gets either 1.2GB (disable IGPU) or 833MB (enable IGPU).
However it's correct in 64-bit Windows 7 or 8 as well as in BIOS.
Anyone has the similar problems or solution ?