Hi and welcome to the Giagbyte Forum.
I have been doing some checking and according to Corsair your memory doesn't exist the nearest they have is TW3X4G1333C9 and your motherboard isn't compatible with those modules anyway.
On the Gigabyte QVL there is no mention of your memory being compatible so that is probably where your troubles lay.
Did you research the components berfore purchasing them?
This is the memory kits
http://www.amazon.com/Corsair-TW3X4G1600C9D-Dominator-PC3-12800-1600Mhz/dp/B002D18C04/ref=sr_1_1?ie=UTF8&s=electronics&qid=1287764753&sr=8-1 these are the technical details of mb
Technical Details
* CPU: Socket 775 Support Intel Core 2 Extreme/Core 2 Quad/Core 2 Duo/Pentium Extreme Edition/Pentium D/Pentium 4 Extreme Edition
* Chipset: Intel P45 & Intel ICH10R Memory: 4x DDR3-2200+/1333/1066/800 DIMMs, Dual Channel, Upto 16GB
* Slots: 2x PCI-Express 2.0 x16 Slots(support ATI CrossFireX Technology); 3x PCI-Express x1 Slots; 2x PCI Slots IDE/SATA: 1x ATA-133 Channel
* Audio: Realtek ALC889 7.1-Channel High Definition Audio CODEC LAN: Realtek RTL8111D Gigabit Ethernet Controller
* Ports: 10x USB 2.0 Ports (6 rear, 4 by headers); 2x USB 3.0 Ports; 3x IEEE 1394a Ports
I could not find memories geil 2gb 1600 or ocz 1600 I only could find corsair tw3x4g1600c9d for this mb