AHCI & Gigabyte ex58-ud5 - cannot boot OS disk

[DrMekon]

Im trying to install win7rc after enabling ahci on the board.. I hav several other pcs all set up the same way... XP required me to slipstream ahcci drivers into build, but installed fine. Win7 on my other pc installed ok too...

I have enabled ahci on sata interface (the blue connectors - I assume these are the intel ones).. and connected my hard disk to 0 and my dvdrw to 3... I then changed the boot order which had detected my Pioneer dvdrw... On bootup, when ahci screen loads, you can see both the hd and dvdrw, but I dont get the option in boot from cd.. and windows just loads... Yet the same install disk works fine in sata mode...

Setup would still start even if there was a controller driver problem, but this does not happen..

Ive tried vairous other confis of ahci settings but to no avail...

Any ideas??

 

[DrMekon]

Sounds silly, but the obvious thing to ask.. yes, it is first boot device... I eve made sure to reboot after enabling ahci then selct the named dvdrw which only shows up after ahci enabled...

The light even flickers on the drive, and you can hear it spin up.. almost like it cant find the boot info, but as I said, it boots fine when in normal sata mode...

 

[DrMekon]

try putting the cd drive on the other set of sata ports

Will give that a go... I have 2 identical pioneer drives in 2 pcs.. ahci enabled boots fine in one pc, so it cant be the drive...

I only enable ahci so that I could use hotswap esata on one of my pcs... are there any other benefits which may affect performance, or is it only negligable, if any...