I couldn't say for certain, but isn't a sempron the AMD equivalent to an Intel celeron? If that's the case then I would say that is probably the problem.
ok ive been reading and did some tests, trueHD works perfect including seeking, its dts-ma that gives problems, ive gone to a conclusion i need another splitter, haali was said to have issues, are there alternatives?
the sempron is definitely enough its also undervolted to save some watts