DiamondMax 10: What does 16 MB Cache and the New Native Command Queuing do? - Test Setup Hardware

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NCQ Enabled Chipsets

For NCQ to be enabled, both the hard disk and the motherboard's hard disk controller need to support NCQ. There are only two chipsets on the market as of writing this article that supports NCQ, they are the Intel 925X and the Intel 915. Both, as you would expect, work only with Intel CPUs. AMD owners, nya, na na na na.

The Southbridge hard disk controller is called the Intel ICH6 and must be used with Intel's Applications Accelerator (IAA) to enable NCQ

The Diamond Max 10 now supports Advanced Host Control Interface (AHCI). AHCI is a hard disk control standard for SATA that supports new features such as Hot Plug and Native Command Queuing. The full PDF specification of AHCI can be found here.

AHCI must be enabled in the bios before NCQ will work as it's not recognisable by standard SATA standards. If Windows is installed prior to enabling AHCI then, unfortunately, a complete reinstall of Windows becomes necessary. AHCI hard disks install the same way RAID configured disks do i.e. the relevant drivers must be on a floppy and you must press F6 when prompted to during the DOS portion of the Windows XP installation. The Intel Application Accelerator will only install in WinXP/2000 if AHCI is enabled in the bios and installed on an NTFS file system.

Once in windows a quick load of Intel Application Accelerator will show you whether or not the drive is NCQ enabled.

Below is a screen shot of the Maxtor Diamond Max 10 300GB drive with NCQ enabled:

And NCQ not enabled for the Western Digital Raptor

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Comments On: DiamondMax 10: What does 16 MB Cache and the New Native Command Queing do?

· Just another idiot to compare different capacity and areal density drives!    · why the raptors support NCQ on all the silicon image controllers just not the recent...    · not really, all that matters is results - not many people care whats inside the box,...    · We, at Poweroid.com, paid for all the hard drives used in this test. And all the...   >>> Post your comment now!

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