I have owned a Dell Inspiron 9400 laptop that has given me nothing but grief. I bought this laptop in 2006 and over the near year (till 2007) dell replaced the motherboard twice, LCD screen once. But the LCD artefacts (like below) kept appearing. In 2007 I gave up and threw the laptop in the closet.
Last month, I took this out and got Dell to give me a replacement motherboard again (yes after 4 years and without any charge). After 10 days of using the laptop, I have started getting the artefacts and memory parity errors again.
This makes me think that there is something different going on with this laptop, and would like to diagnose the exact issue with this laptop. It seems like the problem is with RAM now.
What I am looking for is a guide or a set of tools I can use to correctly diagnose the issue once and for all. I want to consistently reproduce this error.
This is the error I got today morning, please note that once I reboot the laptop, it will work find till an indefinite period of time (usually few days).
OS: Windows 7 Ultimate SP1 - with latest drivers for all components
EDIT: Probably worth nothing that:
I have already run the ultimatebootcd memtest with no issues detected. I have also run the Win7 memory test thing with no issues. I have also done the following to head generate heat:
- Run PC Marks for 1 hour (keeping laptop near the GAS heater)
- Played a full HD (1080p) movie using VLC for over an hour