My board doesnt regconize my SATA - HELP

[oldstu12A4]

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Hi everyone, can anyone help me please?
I've just bought a new Board from Intel, the 915PCYL. This board is designed for SATA.
But for some reason, i think it doesn't regconize my hard drive as SATA. It think my HDD is only UADA 100.
Can some one help me to fix it?
I bought the HDD OEM, so i did go up to Seagate website to download the DISCWIZARD and install the driver already. I dunno if i did it rite or not. I used the floppy disk version. Since my SATA is the main disk, i only let the floppy disks reboot my PC, then i restart and run as normal.
Here is when I turn on the Intel Untilities windows for Hard drives:

Model : ST3160023AS
Max. Transfer Mode : UDMA 5 ( ATA/100)
Active Transfer Mode : UDMA 5 (ATA/100)
S.M.A.R.T. Status : Enabled
Size : 152.6Gb

I dont think this show that my drive is recognize as SATA

 

[~mr mixx~]

Size : 152.6Gb -> this may be your problem, you have to
do a bios update i believe...most comp's won't recognize the hhd if it's over 150 gigs.

This is the Intel bios update page