Posted August 12, 200816 yr AHCI (Advanced Host Controller Interface) NCQ ( Native Command Queuing) (puts commands to HD in order) Got a new drive (Seagate ST3 750 330 AS), and thought I'd try this NCQ stuff. Set BIOS to AHCI and AHCI BIOS. The BIOS did pick up all my SATA drives on the AHCI BIOS. However, Vista started up (progress bar) but about 5-10 secs later, a BSOD flashed and it re-booted. I looked up AHCI on MSKB and found this:(that is, I reset BIOS to IDE, re-booted, and then looked it up) http://support.microsoft.com/kb/922976/en-us I could sorta remember that BSOD flashing by as a STOP, so I tried it . Voila - reboot after setting BIOS to AHCI and AHCI BIOS on, Vista booted up as normal and then went into a long sequence of now finding the correct AHCI controller drivers and applying them - auto - takes 5-10 minutes. (I have 6 SATA ports) reboot and all is well. Sisoft Sandra and HD Tune both now say that NCQ is there. For some Nvidia chipsets, the NCQ checkbox apparently appears in the Device properties, but it does not on my Intel ICH9R. So, contrary to what I was finding on the web, you CAN set up AHCI and NCQ AFTER you have installed Vista - it doesn't take a re-install. And, yes, I had to re-activate my OEM Vista, Though, odly, it waited a day to tell me that I had a day to do it. I used Acronis TI 11 to clone my Hitachi 160gb to the new drive (10 min or so), power off, unplug the Hitachi and test the new drive for a bit. Pretty easy, all in all, but only when I thought to check MSKB for AHCI. -- Kris ---------- DFI Infinity Blood-Iron P35-T2RL E7200Wolfdale SLAVN M0 2.53@3.42ghz 1.29v TtP0310HSF 2x1gb Mushkin HP 800@1082 | MSI NX8600GTS-OC 256mb | LiteOn DH401S08C at CP56 BluRay player | Hannspree HF289H 28" | Raidmax RX530-SS psu | Vista Ult 32 SP1
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