Can't boot into Lion after windows update

[bartvd74]

Hi,

Since I have a dual boot (Lion and Win7) system, I did some updates to the Win7 installation. If I'm not mistaken, it was a BIOS update from within Windows.

Since the update, I can no longer boot into Lion.
My Lion installation is on a separate HDD and I used MultiBeast to make it multibootable with Chimera.
If I connect the Lion HDD as a USB drive, it will boot Lion just fine, but if the drive is connected as an internal drive (SATA), it seems to be not detected by the system....

Booting is as USB and re running multi beast didn't solve it so now I'm kinda stuck...
Any help would be appreciated!

 

[iUserosx]

If u hav updated ur bios , I think u have to make the setting again in bios(SATA->AHCI, HPET->64 bit etc.)

Note: It is recomended to reset ur bios after an update before change any setting in it!

To reset, remove the 3V cell from ur MB wait for 2-5 Min and put it again

 

[Going Bald]

If you did a BIOS update and are using a DSDT, you need to replace the DSDT with one for the updated BIOS version.

 

[bartvd74]

I was kinda busy, so no time yet to try the suggestions but thanks anyway!

I will let you now if and how I get it working again!

EDIT:
how simple things can be...
Yes, of course it was the settings in the BIOS...
changed boot priority and set SATA mode back