Can't tell whats wrong.
I have no idea what the specs or Hardware is of ether PC.
i have an AMD 7750 dual core 2.7 GHz with an Asus M3A78-EM motherboard
and he has an intel Q9550 Core2 Quad 2.83 GHz and a Asus P5K/epu Motherboard
we both have an ATI 4850 as a GPU.
i ran the Sandra memory bandwidth tests and they said i have 4GB total which is correct but i am only getting a combined 1.6 GHz of speed and as for timings: there are two: 5-5-5-15 3-24-6-3 is that correct? the memory i bought was: Here