I have PC-Doctor 6, it works fine, however, from time to time I need to troubleshoot USB ports and there is no USB loopback testing hardware in this KIT as well as in version 7.
Why you guys do not include this into your software package?
For example last week I had to test USB ports for HP laptop, some of them work some of them dont, I could not make sure which ones are defective..
Also please add testing for RIPPLE level for power supply. Broken power supplies often do not have problem with voltage level, they can indicate proper voltage if measured with voltmeter, but, due to defective capacitors they can have higher RIPPLE than allowed by ATX standards(not clear DC) and cause unstable systems or intermittent restarts..