From what I can tell, these two problems vary by machine. I can only assume that the seeks per second was helped so tremendously by NCQ. T61p Work in progress: Windows 7 Ultimate 64bit 2. What Thinkpad s are you referring to? You can not post a blank message. There seems to be at least one kernel patch that attempts to enable AHCI after boot up.

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What you can and should do is to make sure the partition is properly aligned on the drives only applies for Windows XP. It is provided for general information only and should not be relied upon as complete or accurate.

You can not post a blank message. Here’s what I have in DM: Ahc AHCI and NCQ gave me a small decrease in sequential output performance, a very nice increase in sequential input performance, and an insane increase in seeks per second.

Goodbye Lorita, wherever you’ve gone I have an Intel x25m G1 ssd with this exact same problem! So thanks for the assist, fellas, it’s very much appreciated! Moderators are not employees or representatives of HWZ. Reboot and go into your BIOS setup. My head is spinning now.


I’ll continue to read up on this stuff–between being a while since I did a build, and my propensity for frugality, I’m quite a bit behind in this area. Merry Christmas and a Happy New Year to you all! But don’t worry too much about it if you can’t, they will chug along at a fair pace regardless.

How big a problem is the lack of AHCI, and what is the recommended workaround? You can format your own partitions if j wanted to. But of course I don’t want to unintentionally handicap them, either. The thing is, I do not want to lose my current data.

Windows 7 Ultimate 64bit 2.

Intdl must set System Partition as Primary, Active. Dear all, I have two old X255, an R40 and a T41p with different boot problems the T41p is locked by qhci supervisor password, the R40 doesn’t So I have memorised, expect realistic throughput of: Thank you so much in advance for your inputs.

At this point, you can choose to reinstall your OS long method or continue my steps below. Is my data still recoverable in the sdd? This is definitely an improvement, so I ran another quick dd to see if there was a change:. So I think the partition table is screwed up already. I can only assume that the seeks per second was helped so tremendously by NCQ. You will see now your hard disks are on the list.


Forcing AHCI To Increase Intel X25-M Performance

Do a regedit and change the msahci setting. You will see new drivers being installed and your disk is on AHCI. At this point, you can choose to reinstall your OS long method and all your programs again. Vista and up has SSD-friendly default partition alignment. You may need to extend those unwanted free space and leaving none.

So if this setting is hidden, does that mean I have to manually make it active somehow? Forum members and moderators are responsible for their own posts.