I am have been having issues with a Dell Inspirion 8500 laptop. I have tested the voltage to the RAM at 2.2V and wondering if that is the correct reading for this laptop? What is occuring is that about every 6 months the ram seems to be failing. Once I replace the memory the system runs well again for that approximate time frame. Any ideas on this? Also, I was unable to purchase a schematic diagram from Dell and was wondering how one would obtain this? I have seem misc. schematics for Dell hardware posted on the net but, not the full blown schematic for the Inspiron 8500. Any ideas on where I can find this would be a huge help. Please refrain from comments that Dell is the only place - thanks.