So I upgraded my ram on my dell XPS 8300, Mobo model: Dell 0Y2MRG, with 4 sticks of 4gb dd3 ram, PC12800, CL11, 1600mhz. My old ram was 4 sticks of 2gb ddr3, CL9, 1333mhz. Now before I upgraded my old ram I used two sticks mixed with two sticks of the old ram and I would get hard crashes consistently. So that's when I decided to just get two more sticks of new ram to upgrade. I had heard that it was probably the different timings that caused the crashes between the ram sticks. But after switching the new ram I've checked CPU-Z and on the "SPD" tab all the ram sticks stats/specs are all the same however in the previous "Memory" tab it shows the timings of my old ram in CL9. So I'm wondering is there a difference and will this cause my pc to hard crash in the future? I also can't change the timings I heard for Dell PCs, at least for my model.