Some people do get away with it by doing a registry hack, but that's not an ideal way to do it anyway. You should reinstall.
My best guess, your mobo seems to have two separate SATA controllers. One is Intel Z68 chipset and the other is probably made by another company like Marvell. You probably hooked up the SSD to a SATA header under the Intel's controller but set the Marvell or whatever the other one to AHCI, OR the other way around like your SSD 's hooked up to Marvell and you set Intel's controller to AHCI. That's why the SSD is running in IDE mode.
Yup, you have 6 SATA headers that belong to Intel's controller and 2 headers that belong to Marvell.
- 2 x SATA 6Gb/s connectors (SATA3_0~SATA3_1) supporting up to 2 SATA 6Gb/s devices
- 4 x SATA 3Gb/s connectors (SATA2_2~SATA2_5) supporting up to 4 SATA 3Gb/s devices
- Support for SATA RAID 0, RAID 1, RAID 5, and RAID 10
* When a RAID set is built across the SATA 6Gb/s and SATA 3Gb/s
channels, the system performance of the RAID set may vary depending on
the devices being connected.
1 x Marvell 88SE9172 chip:
- 2 x SATA 6Gb/s connectors (GSATA3_6, GSATA3_7) supporting up to 2 SATA 6Gb/s devices
- Support for SATA RAID 0 and RAID 1
IF YOU WANT TO USE THE SSD AS A STAND-ALONE BOOT DRIVE (NOT AS A CACHE SPACE FOR SMART RESPONSE).
Reset the CMOS first.
Connect both the SSD and HDD to the main SATA controller (Intel's 6Gb/s headers) of your mobo. The mobo manual should have a diagram of some sort indicating which headers on the mobo is under the control of the Intel controller.
Read your mobo manual VEEEEEEEEERRRY carefully and make sure to set that controller to AHCI
Boot from Windows disc.
Choose clean install (advanced)
When asked where you want to install Windows, click on Drive Options, and delete everything on the SSD and HDD.
Go ahead and install Windows on the SSD.
IF YOU INTEND T USE THE SSD FOR SSD CACHING / INTEL SMART RESPONSE TECHNOLOGY,
the SATA controller setting should be RAID instead of AHCI, plus you should install the OS on the HDD, not the SSD.
i7-2600k @4.5GHz, Scythe Mugen 2 Rev. B, 8GB DDR3 1600, GIGABYTE Z68XP-UD3P, GeForce 9500GT, PC P&C 610W, Plextor M3 128GB, Hitachi GST 7K3000 x2 & WD Black, ASUS DVD & LG Blu-ray Burners, Win7 Pro x64, CM 932 Case.
HTPC + Media Server: http://www.eggxpert.com/forums/permalink/5855/836221/ShowThread.aspx#836221