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    IDE on my 7811fx

    Discussion in 'Gateway and eMachines' started by Eric618, Apr 25, 2009.

  1. Eric618

    Eric618 Notebook Consultant

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    Hey guys,

    I just installed a 60gb OCZ Vertex on my 7811. I did a fresh install of Windows 7 build 7077. Everything is great, but I can only boot in AHCI mode. I get a BSOD and reboot when I try to boot into IDE. Most of what I read on the OCZ forums is I'll get better speeds in IDE.

    How can I switch to IDE? Thanks! :)
     
    Eric618, Apr 25, 2009
    #1
  2. madmook

    madmook Notebook Evangelist

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    Re-install in IDE mode?
     
    madmook, Apr 25, 2009
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  3. Eric618

    Eric618 Notebook Consultant

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    There's a fairly straightforward way to do it, I just don't know what it is. I was able to Get AHCI up and running after and IDE install on Win XP recently. I know AHCI-IDE is simpler than that.
     
    Eric618, Apr 25, 2009
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  4. nacr05

    nacr05 Extreme Overclocker

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    I think it has to do with some registry edit, not sure though.. I could be way off though.
     
    nacr05, Apr 25, 2009
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  5. Eric618

    Eric618 Notebook Consultant

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    No one knows?
     
    Eric618, May 1, 2009
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  6. AGlobalThreatsK

    AGlobalThreatsK Notebook Evangelist

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    Please post the link where they are telling you IDE mode is recommended.
     
    AGlobalThreatsK, May 1, 2009
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  7. Eric618

    Eric618 Notebook Consultant

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    There are several threads on the OCZ forums suggesting IDE. There's also some suggesting AHCI. Go check out the forums.
     
    Eric618, May 3, 2009
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  8. AGlobalThreatsK

    AGlobalThreatsK Notebook Evangelist

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    Ive been on the forums since January.

    I haven't seen any threads suggesting IDE mode.
     
    AGlobalThreatsK, May 3, 2009
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  9. wootage

    wootage Notebook Consultant

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    I'm here to post a way to get XP to run AHCI mode so that my new Vertex can run on the fastest mode.

    My understanding is that these SSDs are so fast, the chipset can be a limiting factor, so having ACHI enabled is good because it gives you Native Command Queueing.
     
    wootage, May 3, 2009
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  10. Big Mike

    Big Mike Notebook Deity

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    Unfortunately my attempts to go from AHCI back to IDE were all unsuccessful (the masterdrive I have supposedly also works better in IDE). I think a reinstall is the only option. The other way (IDE->AHCI) can be done with a driver change and reboot. Some computers have no problem jumping backwards but this one seems to. Also FWIW, ESata, at least under XP, no longer works in IDE mode.
     
    Big Mike, May 4, 2009
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  11. AGlobalThreatsK

    AGlobalThreatsK Notebook Evangelist

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    I would like to see a recommendation with proof and an explanation of why IDE mode performs better over AHCI or RAID.
     
    AGlobalThreatsK, May 4, 2009
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  12. Big Mike

    Big Mike Notebook Deity

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    The theory, which I'm not proposing to be fact, but I wanted to try and didn't feel like reinstalling to try, is that Native Command Queing in particular hurts SSDs. Because NCQ reorders commands based on the latency of a spinning disk to optimize access it's essentially de-optimizing an SSD where data block locations are only mapped to a physical location for compatibility's sake but in fact are all accessible with the same latency.
     
    Big Mike, May 4, 2009
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  13. Eric618

    Eric618 Notebook Consultant

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    Thanks Mike! And yeah, that's the theory with IDE. I didn't feel like trying to locate the threads about it, and couldn't have worded it as well as you.
     
    Eric618, May 5, 2009
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