AboutDavid Freitag Expertise I can answer questions about all kinds of computers, operating systems, software and hardware in clear and easily understandable language. I have dealt with sorts of software and hardware issues in PCs from before windows to the present. I can explain basic concepts and deal with complex detailed issues in the guts of operating systems, including drivers, bios, hardware issues and software problems.
Experience I have over 3 decades of experience ranging from mainframes and minis and microcomputers to all flavors of personal computers. I have programmed in assembler language, Fortran, C, VB, C# and I have worked with the major relational databases. I have been a CIO of an energy company and I have provided hands on technical management for Windows software development. In the course of my career, I have had to deal with all sorts of configurations and nitty gritty system problems which exposed me to all aspects of personal computer systems.
Publications I am an expert author in Ezinearticles and have had articles published in Buzzle, IdeaMarketer, ArticleCube and other article sites.
Education/Credentials I have a BS in Physics from CCNY. I have received credits from courses dealing with OLE automation and computer systems management from the AMA
Awards and Honors Phi Beta Kappa
Achievement awards for software development efforts in a leading Voip provider company.
DJ SIMBA writes on 2008-08-04 15:50:13
Hi, i seem to have a similar situation with my HP compaq nx6310 AC adapter. It has the same 7.4mm cylinder power jack with the small centre pin inside that provides 2 voltage outputs.
The laptop will run perfectly fine on battery power but when you insert the AC power cable it slows down hugely. almost unusable.
When measured with a voltmeter, between the outer cylinder and the inner cylinder of the plug, i get 18.6v. But when measured from outer cylinder to the centre pin i only get 12.5v. After searching numerous forums for days and finding nothing, i brought myself to the conclusion that the AC adaptor must be faulty.
It is a cheap replacement adapter made in china. Il have to invest in a genuine HP adapter and see if there is a difference.
