I have installed a new SSD and new HDD on my system and done a new install of windows 7 Afterwards I found out I should of changed the bios ide to ahci I think is this correct If I change it now will I have to do a new install of windows again.and will all the programs I have put on HDD be ok Or will I have to reinstall them aswell thanks
You can enable AHCI inside windows: http://www.sevenforums.com/tutorials/61869-ahci-enable-windows-7-vista.html read that , you need to reg edit 1 value first then restart you pc , go into bios and change to ahci , then boot back up - default ahci drivers will then be installed , and you can then install the latest motherboard drivers.
If you don't do it the correct way ^ then you can end up in an endless loop of it refusing to boot, ie if you just set bios to AHCI without changing anything in windows, windows 7 can then poo itself and doesn't know what to do.
1. Startup "Regedit 2. Open HKEY_LOCAL_MACHINE / SYSTEM / CurrentControlset / Services 3. Open msahci 4. In the right field left click on "start" and go to Modify 5. In the value Data field enter "0" and click "ok" 6. exit "Regedit"
Your SATA controller should always be on AHCI with anything newer than Windows XP. AHCI will boost your HDD performance visibly, and of course TRIM support for your SSD. Once you switch to AHCI mode in your BIOS, and in Windows (Windows first, so that you don't get a BSOD as explained above). You don't have anything to do. Your system will be operating correctly.
If I boot up from the windows disk and have the bios set to ahci would this be easier as I don't know what iam doing messing around with the settings you said because if I get if wrong could I do more harm.if I do as I said above windows will install right drivers is this correct.
Would it be easier for me just to reinstall windows and change bios before hand don't like touching Registry if I make a mistake I could damage anything It's worked on another forum a guy said to change pciide aswell to 0 Not done this but what is it Also when I did what you said it only did a drive updates for marvel my SSD and sata 0 should it of done one for HDD
ahci is a controller so when you motherboard POSTS you should now see a last 1 device listed under AHCI screen. HDD`s dont gain as much from AHCI than SSD`s do