Here is the specs of my motherboard ports:
2 x Serial ATA/300 SATA, 1 x Ultra ATA/100 (ATA-6) IDE

As you can see I have SATA controller built in. I purchased a WD 180 GB HDD which is SATA2 . My question is will the SATA2 HDD run off of the SATA Controller listed above? I know there will be a speed sacrifice but will it at least run?

Thanks...

SATA 300 is what's generally called SATA II or 3.0G although it really doesn't matter. No current SATA drives exceed the original SATA transfer rate of 150MB/sec. WD Raptors are SATA I drives and they are the fastest SATA drives available.

What is the chipset on your motherboard?

Hi thanks for replying,

Chipset: Intel 945GC Express

I am getting back into the biz after several years hiatus so the SATA drives are new to me..

Shouldn't have any problems with Intel chipset and ICH7 southbridge.

it works fine, just at the lower speed

Thanks to you all for the assistance! I am waiting on a legacy-to-sata power adapter to arrive so I couldn't boot it up and test it out..

most new drives have both types of power connectors but NEVR attatch both at the same time