I am having a problem with a laptop that goes blank randomly. It usually happens either right before the login screen or about 10 after logging in or when I open a program (anything ranging from explorer to prime95). It seems to happen more often when on battery power. Once this starts happening, it happens repeatedly when powering up the computer. The power LED stays lit even when the screen goes blank but the hdd led gets stuck (either on or off).
Also, if this doesn't happen in the first few seconds of windows loading, it doesn't happen until I have to restart. I can even run something as stressful as prime95 for a few hours and its fine. When it happens, I can log in on safe mode and I don't experience this problem.
I am running windows 7 (relatively new install) with only a few programs installed.
Things I have tried:
Updated all my drivers (from versions on Lenovo's website).
Checked my temperatures.
Disabled all startup items
Started up with diagnostic startup in msconfig
Disabled all drivers not essential windows to load (video, audio, network, etc)
Tried the three available power schemes
Ran few different antivirus (didn't find anything)
Things I am not willing to do:
Format hard drive and reinstall windows
Please let me know if there is something I can try to narrow down this problem.
Also, if this doesn't happen in the first few seconds of windows loading, it doesn't happen until I have to restart. I can even run something as stressful as prime95 for a few hours and its fine. When it happens, I can log in on safe mode and I don't experience this problem.
I am running windows 7 (relatively new install) with only a few programs installed.
Things I have tried:
Updated all my drivers (from versions on Lenovo's website).
Checked my temperatures.
Disabled all startup items
Started up with diagnostic startup in msconfig
Disabled all drivers not essential windows to load (video, audio, network, etc)
Tried the three available power schemes
Ran few different antivirus (didn't find anything)
Things I am not willing to do:
Format hard drive and reinstall windows
Please let me know if there is something I can try to narrow down this problem.