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Question ACPI or IDE ( Overclockers UK Forums Hard Drives )
Updated: 2010-07-23 16:10:25 (11)
ACPI or IDE

Hi guys just about to install windows 7 which is the best mode for me ?
Will i see any benefits from going from IDE mode to ACPI ??


cheers

Answers: ACPI or IDE ( Overclockers UK Forums Hard Drives )
ACPI or IDE

ACHI

Mr Paul

ACPI or IDE

ACHI and yes you will!

lukext

ACPI or IDE

Ok, firstly, it's AHCI.

Secondly, any possible benefits you may see will be minuscule, however that's not to say you shouldn't use it. If you intend using an SSD at any point in the near future, you may as well have it switched on now. It will also enable native command queueing which is nice, but almost no use to the average desktop user.

Be aware however that if you do run the disk controller in AHCI mode, you want to make sure you have the latest controller drivers direct from the respective manufacturer. With IDE mode you can get away with Windows dealing with the drivers. With AHCI, you want to make sure the drivers have all of the correct optimisations and are as up to date as possible.

Memphis

ACPI or IDE

Yes it is, sorry, clearly a keyboard slip up

Mr Paul

ACPI or IDE

No reason to use it unless you have an SSD that requires it, no performance difference - only performance loss if you can't disable NCQ.

AbsenceJam

ACPI or IDE

Sorry for the hijack,

I was also wondering what actual benefits and reasons there are for using AHCI myself, can anyone explain the pro's and con's?

I currently run three hard drives, 500gb F3 OS, 1tb F3 files, 1.5tb WD green backup.

sastusbulbas

ACPI or IDE

The main benefit of ACHI is NCQ (if your drive supports it), but I would recommend it over IDE mode anyway.

http://en.wikipedia.org/wiki/Native_Command_Queuing

Duke

ACPI or IDE

Quote:
Originally Posted by sastusbulbas
Sorry for the hijack,

I was also wondering what actual benefits and reasons there are for using AHCI myself, can anyone explain the pro's and con's?

I currently run three hard drives, 500gb F3 OS, 1tb F3 files, 1.5tb WD green backup.
Pro:
NCQ (if a server)
Automatic detection of connected drives (though can be finicky)
Hotswapping via safely remove hardware
Needed for TRIM and garbage collection with some SSD's

Cons:
NCQ (if a desktop)
Needs drivers so aside from W7 there are often issues with various other bootCD's and tools
Slower startup
Controllers a few years old often have issues with SATA ODD's

You can have the same hotswapping with hotswap.exe (and it's safer too) so I only suggest it if it's needed for a SSD.

AbsenceJam

ACPI or IDE

Well I will consider giving AHCI a miss, I would have to modify the registry to do it, so it may be simple without reloading the OS. But my system boots up pretty quickly, and my F3's seem to bench OK for mechanicals, so maybe I won't see any benefit from AHCI.

sastusbulbas

ACPI or IDE

double post

C64

ACPI or IDE

Just go IDE Achi as pointed out above is pointless if SSD is better on achi then you can just enable achi when you get an ssd as you would need to reinstall windows to it anyway.

C64

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