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General discussion

IAA vs. IDE channel Advance tab.

by caktus Jul 9, 2007 1:14PM PDT

I am using XP Home SP2 (OEM/emachines.)

I have recently installed Intel's Application Accelerator. I understand that this is why the IDE channel Advance tabs are suddenly missing.

I also understand that the Intel Application Accelerator Automatically uses DMA. Is this correct? Does it mean that it will not revert to PIO after so many errors?

I understand that the Intel Application Accelerator can cause problems on some systems. Aside from the Advance tab missing, the only other noticeable change is that application acceleration [seems] to be slightly enhanced. Does it appear that the Intel Application Accelerator is OK for my system? Or does anyone suggest that it be removed?

Any advice or suggestions regarding this matter would be appreciated.

Thanks.

Charlie

Discussion is locked

6 Posts
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I don't use or install IAA.
by r. proffitt Former Forum moderator Jul 9, 2007 11:20PM PDT

Your choice here.

Bob

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Actually......
by caktus Jul 10, 2007 1:40AM PDT

Thanks Bob,

Really just wondering if DMA can switch to POI on me while IAA is installed, as appearantly I wouldn't be able to rectify it while the IAA is installed. Or if IAA fixes the problem of DMA switching to POI.

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Sorry.
by r. proffitt Former Forum moderator Jul 10, 2007 2:25AM PDT

But Intel was never clear about this. You have to run disk speed tests to detect the mode.

Bob

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RE: disk speed tests
by caktus Jul 10, 2007 12:45PM PDT

Ran Disk Speed. Ran several tests with and w/o IAA in both Safe and normal modes. In normal mode, scores with IAA were substantially higher than w/o IAA. Scores in safe mode with and w/o IAA installed were almost identical to Normal mode with IAA. The tests mentioned nothing regarding transfer mode, but I guess that may just be because of the particular tool I used. But thanks for suggesting it. The results were interesting. So I guess I'll hang on to IAA and see how it goes.

But still had no idea how to tell if still in DMA mode with IAA installed. But thanks to Mac Dude's IDE/ATA Guide for Gumbies I finally found info that "Once installed, IAA automatically configures each ATA/IDE device for it?s maximum transfer mode, overriding settings in the BIOS, if necessary. It will do this even for 2 devices of differing maximum transfer modes on the same ATA/IDE cable." Since this was the only reference I could find regarding the IAA's effect on the transfer mode setting I assume it may not be gospel, but it sounds good, so I'll just leave it at that.

Thanks.

Charlie

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Make that...
by caktus Jul 10, 2007 12:50PM PDT
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Benchmarks should be your guide.
by r. proffitt Former Forum moderator Jul 10, 2007 9:24PM PDT

If you find IAA to help then go with that. You can run the benchmark again in a month to see if it fell back.

Bob

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