Hi Dan,
What is your motherboard Revision? 1.0 or 2.0 ?
I assume, by exemple, you have a 1.0 Revison...
http://www.gigabyte.com/products/product-page.aspx?pid=3305#ovI suggest then you connect your OS HDD on SATA_x ICH10R SouthBridge (SATA2_0, SATA2_1, SATA2_2, SATA2_3, SATA2_4, SATA2_5).
This chip is more speedly than Marvel and JMicron.
So before change a connection : (And after, ReCheck if you find a trace of removed all drivers Marvel ...)
Remove all Marvell drivers.
Driver notes : before install new driver,
Please completely remove older version driver first with :
Drivers sweeper :
http://phyxion.net/Driver-Sweeper/Driver-Sweeper/Version-3-2-0/and soft for Windows Registry :
Ccleaner
http://www.piriform.com/ccleaner/downloadjv16 PowerTools 2011
http://www.macecraft.com/downloads/jv16pt_setup_hb.exeWise Registry Cleaner Pro
http://www.wisecleaner.com/soft/WRCPro.exeand restart the computer.
ReCheck if you have clean all drivers...
And after Close your computer.
Disconnect Main Power Cable.
Change for Sata_xx
Reconnect Main Power Cable
Reboot
Go to bios
Check Hard Disk Boot Priority
Check First, Second, Third Boot Device
Check Sata Raid AHCI Mode : AHCI
Check Onboard Sata IDE Ctrl Mode : Enabled
EDIT:
Welcome to forum... of course...
If you have a pagefile.sys... Keep it.. but adjust its size to 512MB.
Come again here , for comments...
Gloup_Gloup