I just checked mine out, and it fluctuates from 12-45 VAC... how odd. I have started getting the NMI error again recently also...
post #21 of 352
1/31/07 at 3:32pm
Originally Posted by the_scotsman
It now makes sense why I was feeling the tingling from the case every now and again...100VAC! No current but its still 100V all the same...
Originally Posted by ViriiGuy
Well I do firmly believe that this stray voltage could be the cause of your NMI errors. I have seen the NMI errors on most of the laptops that have this problem. I firmly believe that the stray voltage can be the cause for several hardware failures. Stray voltages and electronics do not mix. Many of the componets inside your laptop are not designed to handle over 12 volts.
Now I do not think it is the cause of your hard drive. Simply because you say it is clicking. MOST of the time a clicking hard drive means head failure. The clicking sound you hear is actually the heads smacking against the platters inside your hard drive. This in laptops is usually cause by repeatedly being moved or shaken while on. However, with that said, it is possible that the stray voltage shorted out the IC chip that controls the head movement on your hard drive and has caused it to not remember where it should start and stop. But this is a very rare occurance, just not unheard of.
I do feel that a grounded adapter may be just what we need for these laptops and when I spoke to Dell early yesterday I suggested as much to them. However when I have mine serviced again, I will have it replaced and the new one shipped to me with a grounded adapter. The hidden internal damage will have already been started, due to the stray voltage.
the_scotsman, I do not have access to an ossiciliscope at the moment. Maybe you could throw the power adapter you have right now on it. I suspect that since these seem to be about the only common part betweent he 6400 and the 9400, maybe this is the culprit.