How to find out if SATA-II mode has been enabled in XP

SATA II can't be enabled or disabled. it is a feature in the HDD and mobo ports. what is your mobo model/manufacturer and if possible read its manual, it should be saying wether it supports SATA II or not.

The motherboard supports SATA-II and it is 945G chipset.
It also supports NCQ.

I just wanted to know how can I verify if my hitachi HDD is really running is SATA-II mode and if there are any other ways to run it quicker.

Your motherboard probably has SATA 3.0 and Sata 1.5 ports. Check your manual to ensure you're plugged into the 3.0 if you have a 3.0 drive. Also, some drives now have a small jumper that switches between 3.0 and 1.5. Check that. If those things are set.. then you're operating at 3.0. An no, you won't notice a difference, sorry.

I have an older Intel mobo (D875PBZ) and the SATA option has to be enabled in the BIOS when the mobo is initialized or it defaults to the IDE mode. I dont know if this pertains to your mobo (dont have time to read your manual atm   ) Try looking at your HD settings in your BIOS.

It wont run any faster anyway so your wasting your time. No drive can even come close to reaching SATA 150 bandwidth, at least not without raid.

In that case why have they introduced SATA - II
My mobo has all SATA-II ports the mobo is gigabyte GA-945GM-S2

It's not SATA-II. That does not exist. It is called SATA 3.0 Gb/s or SATA/300

The reason it exists.. well basically SATA drives are easily setup into a RAID array. A multidrive setup will have much lower latency and thus utilize a greater percentage of the available bandwidth. I don't know if 1.5 Gb/s is reachable in a RAID array, but like all technology, it advances. 3.0 was the next step.

SATA 3.0 GB/s drives are no more expensive than 1.5 or PATA drives. So you might as well buy them if your mobo has the support.

Who even cares? Why all the SATA/300 questions recently?

There is no way your hard disk is going to come close to 150mb/s let alone 300mb/s.

Running at 300mb/s rather than 150mb/s is like widening a 10 foot strech of highway to 500 lanes - utterly useless and has no affect on traffic speeds, as the rest of the highway still limits it.

There are specialist uses for 300mb/s, you dont have them or you'd know about it.

I've heard this complete misinformation many times and I'm sick of it.

A RAID 0 array of 4 WD Raptors will still not be limited by SATA/150 as they have 150mb/s EACH not between them.

The ONLY, and I repeat ONLY, time the extra bandwidth of SATA/300 is used is with a port multiplier (Like a USB hub for hard disks, you dont have one or you'd know), an external RAID device that connects to a single port, or a RAMDISK like the I-Ram (except that that only supports SATA/150 anyway.

Sorry for getting frustrated but there is at least 1 post per day asking this.

(could we please have an SATA-II FAQ sticky??)