I've just bought a stick of 256MB Infineon PC133. My old RAM was Hyundai 128MB PC133. The Hyndai was pretty bad because it can't run in CAS2. Now I'm using the Infineon @ CAS 2-2-2. Memory bandwidth was higher, offcourse. Should I use 384MB or 256? Is there a risk of mixing 2 brands of RAM? Especially low quality ones such as Hyundai?