Microsoft Maximum Transer rate

[Guest]

Hello, I am using an Intel D865glc motherboard and it specifies that it uses
the built-in MS/Windows drivers for the onboard disk controllers for both its
SATA and PATA controllers. When looking up information about the driver it
lists ATAPI.SYS. I am using Windows XP PRO SP2.

I would like to confirm what the maximum transfer rate is for that driver.
Is is UDMA 5 or 6 (ATA100, ATA133 or even SATA150)? I have seen an article
that stated that the MS driver ATAPI.SYS was limited and may *not* support
higher rates such as UDMA mode 6 or SATA150... Can i get a confirmation on
this.

 

[NoNoBadDog!]

Why are you not using the Intel Application Accelerator? It replaces the
drivers with ones that supports the fastest transfer rates the drive is
capable of. Been around for a few years. Was included with your
motherboard drivers.

Bobby

 

[Guest]

If you look at the information for the D865GLC motherboard, the chipset does
not support the application accelerator. I have a chipset that was designed
to use the MS driver. Even though it lists the 865 chipset as application
accel supported, the controller chipset does not. Thanks.

 

[Mikey]

Hi,
Standard XP atapi drivers support at least Ultra133 (UltraDMA 6) on ATA.
I get 109 vs 133 theorical rate on this here pc.
Used a Sata machine w. same OS and it was a wee-bit faster but don't remember
the actual figures.

 

[Guest]

That is not correct. You may be getting the 109 speed reading, but XP support
tells me that DMA 5 is the maximum (ATA 100). Also an article quoted a
development engineer saying that that would be the supported speed (ATA100).

 

[Guest]

You may be using a different driver than the native MS driver.

 

[Mikey]

H,
To: chrazyc.
Right.
nForce2 based MB (presently: Asus A7N8X deLuxe) w. latest drivers from nVidia
include Ultra6 ATA133) support.
Since I always put in the pack at set-up (compulsive maniac that I'm!), I pulled
a "Boo-Boo" there.