Hi, will these work together? Gigabyte motherboard supports up to 8GB RAM and 1066MHz, the RAMs are 2x1GB@800MHz 4-4-4-12 and 2x2GB@800MHz 5-5-5-15. Thanx for answer, will provide more hardware info if needed .
Well, the GX22GB6400UDC memory runs at the wrong voltage for your motherboard. It runs at 2.1 volts, and your motherboard requires 1.8 volt ram.
The GX24GB6400DC will work, but it is rated at a lower speed that is optimal for your system. Your system will take 1066 ram, but this is only 800 MHz ram. Much slower than what is optimal for your motherboard.
Well, given that you don't have the optimal ram available, the Kingston HyperX Blu (KHX6400D2B1K2/4G) or the Corsair XMS2 TWIN2X4096-6400C5C will do. It is the right voltage, and will run somewhat slowly, but it seems to be the best you can get.