Closed Cannot boot from CDROM after change to AHCI Tags: Chipsets BIOS Boot Gigabyte Motherboards Last response: April 21, 2012 2:30 AM in Motherboards Share Hairy_Scot April 16, 2012 4:47:15 AM I recently switched from IDE to AHCI in the BIOS of my Gigabyte GA-MA785GMT-UD2H and now the system just ignores the Boot from CDROM Option. Everything else is fine: boots to Windows OK and Windows runs OK. More about : boot cdrom change ahci monsta a b V Motherboard April 16, 2012 5:20:43 AM Go into your bios and change the boot priority setting and set the cd rom/DVD as the first drive, save and exit and try again. Hairy_Scot April 16, 2012 6:00:15 AM monsta said:Go into your bios and change the boot priority setting and set the cd rom/DVD as the first drive, save and exit and try again. Ehm!? Already done that. See screen here :- https://sites.google.com/site/jimwat1/home/2012-04-16%2... Sytem either ignores CD or just hangs Related resources Bios recognizes CDROM , but won't boot to it? - Forum Dimension E520 will only load windows when boot cd is in cdrom ?!?!?!? - Forum AHCI regedit disaster - Forum M4N98TD EVO AHCI disaster OCZ Agility 3 - Forum Warning About Installing Windows on AHCI -enabled Controllers - Forum Can't find your answer ? Ask ! Get the answer Best solution jaquith a c 714 V Motherboard April 16, 2012 2:54:25 PM No guarantees, but I've seen this on Gigabyte's before. The problem is often how the first 4 SATA ports are used. HDD/SSD use SATA2_0~SATA2_3 ODD(DVD) use SATA2_4 ; the SATA port parallel to to the ground. /edit - then just to make sure the correct drivers are loading run 'Fix It' - http://support.microsoft.com/kb/922976 and reboot. Hairy_Scot April 16, 2012 4:09:02 PM jaquith said:No guarantees, but I've seen this on Gigabyte's before. The problem is often how the first 4 SATA ports are used. HDD/SSD use SATA2_0~SATA2_3 ODD(DVD) use SATA2_4 ; the SATA port parallel to to the ground. /edit - then just to make sure the correct drivers are loading run 'Fix It' - http://support.microsoft.com/kb/922976 and reboot. Found out from Gigabyte forum that Ports 4/5 can be set to IDE. Did that, and all OK now. Apparently my DVDROM is a bit too old for AHCI. Thanks to all who responded. Is there a way to flag this thread as solved? Hairy_Scot April 16, 2012 4:12:41 PM Best answer selected by Hairy_Scot. jaquith a c 714 V Motherboard April 16, 2012 4:17:02 PM Cool! nikorr a c 327 V Motherboard April 21, 2012 2:30:03 AM This topic has been closed by Nikorr Can't find your answer ? Ask ! Publish Related resources: ForumWindows 7 Ultimate Won't Boot after Bios Update ForumCD/DVD optical drive problem in AHCI /SATA mode ForumSwithching from dual boot to single boot . And switching from raid to ahci . ForumP4P800SE Cannot Get CDROM to Boot - Need Help ForumCan only boot in IDE mode after installing Windows 8 in AHCI mode ForumCannot boot to Windows 7 after fresh install... ForumSSD will not boot in ahci mode ForumSlow boot with AHCI on Gigabyte AM3 boards ForumBSOD - After new Motherboard, CPU and RAM ForumSAT AHCI Drivers installing before XP setup ForumHow can I change back to IDE mode after accidently going to AHCI ?? ForumIntel i5 3550p & AS Rock Z77 PRO 3 ForumComputer Not starting After Updating Bios Forum[SOLVED]ASUS M5A99X EVO Boot LED ForumCannot Boot into Windows After RAM Upgrade More resources Read discussions in other Motherboards categories BIOS Boot Chipsets ASRock Asus Chaintech DFI Elitegroup FIC Foxconn Gigabyte Intel MSI-Microstar !