computer question???

Is the product on the website below worth to buy…will it do any better than just regular POST
http://cgi.ebay.com/USB-PC-Computer-Analyzer-Diagnostic-POST-Test-Card-PCI_W0QQitemZ120275982262QQihZ002QQcategoryZ16145QQssPageNameZWDVWQQrdZ1QQcmdZViewItem

it wont improve your computer processing speed at all. it does nothing besides analyze errors and show you the error code to help you fix it