ACHI mode causing problems when more than 1 HDD installed

[deejayburnout]

Hi Everyone

ACHI Reg tweak - http://forum.giga-byte.co.uk/index.php/topic,6721.0.html

Right i used the IDE registry tweak ACHI work around sucsessfully on my old GA-M68SM-SL2 mobo

When i installed my new mobo i installed Win7 with only my SSD installed as i was having problems with Win 7 installing ( but thats another story ).
ACHI mode was selected in the BIOS and all went ok. Installed in ACHI mode and i was happy.

I then plugged in my other 3 drives and started machine and now searched for on drives. Must take about 5 mins before it loads and then hangs at Verifying DMI pool data.

After several unsucessful attempts, i change the BIOS to IDE mode and machine boots ok.

No big deal, but i would like AHCI mode for my SSD.

Dark Mantis gave some advice that i have yet to try by clearing the CMOS.

Has anyone else had this problem? Any advice?

[Dark Mantis]

Are they all hard drives or is there an optical drive or two hidden away in there ? If so move the optical drive to another controller and set only that to IDE mode leaving the rest to AHCI.

[autotech]

Different motherboard but i just installed one and i set controller to AHCI then move other hard drive and sata dvd to last controller 5 and 6 and set them to ide and mine works fine. As you have more than 2 other hard drives make sure SSD is in sasa_1 and put the other drives in the last sata ports.  Worked for me but as i said different MB.

[PJ1073R]

First time build: I have a new GA-X79-UD5 mobo. REV 12.  I installed one 240 Gb SSD drive via Sata cable and then installed Win 7 Pro 64 bit and it all ran just fine. I then installed two more hard drives (another 240 GB SSD and a 1TB Western Digital Sata drive, both internal).  The issue: I cannot see the new drives anywhere in Win 7 and there is no reference to them when I look in the bios setup. For some reason the system is not seeing them and i can't figure out why. I know very little about this stuff so I ma a bit over my head here. My bios Sata setting is set for AHCI (not IDE) by the way. Is there some trick to having the system find my additional HDs?

[thexfile]

@ PJ1073R
Have you gone into Computer Management and brought them online?


Moderator Edit: This issue for PJ1073R was resolved under this thread: http://forum.giga-byte.co.uk/index.php/topic,10813.msg76790.html#new