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HP Pavilion DV6-1120sa BIOS and Desktop freezing/shutdown
Hi all,
I know there are threads like this posted already but I am having problems with my HP Pavilion DV6-1120sa 3GB RAM Windows 7 laptop (Upgraded from pre-installed Vista with clean install).
Two days ago, Sophos Endpoint found a Memory trojan virus but gave no option to Quarantine/Remove or seek help of any kind. I got two BSOD in the space of 10-15 minutes not long after this and decided to reinstall two night's ago to be safe.
Problem is, after formatting and reinstalling Windows 7 with the Windows 7 disc the desktop would freeze up and I'd need to shut down, this happened 10-20 times so far since reinstalling and no sooner did it start, it happens with the BIOS as well when trying to access settings.
Either the laptop shuts down without warning or freezes and then several seconds later shuts down both in the BIOS and logged in. My laptop no longer restarts as it tries to start up and shuts down before or during POST.
What I have checked since reinstallation:
-sfc /scannow: found corrupt files and repaired them.
-Memory Test when I got into Startup Menu: laptop froze and shut down seconds later.
-Windows Memory Diagnostic: froze and shut down.
-Check Disk: 100% completed and found no errors.
-MemTest86+ through Ubuntu Live CD: ran for 1-3 minutes before freezing and shutting down.
-Reseated both 1gb and 2gb memory sticks
-removed both sticks and ran MemTest86+ on each: 1gb and 2gb individually tested in both Memory Slots. Again laptop froze and shut down.
At the moment I can log into Windows (as I have now) after a BIOS update for my model from the HP website. It could be anything that causes a freeze and needing a hard reset: clicking a program, explorer, aero peek.
I have tried going into Safe Mode but that hadn't worked at all, I've even tried Windows Basic and Windows Classic theme to see how long I have before a freeze but there is no difference at all. The freezing is random and can happen even if I leave the laptop on and do nothing.
This is totally baffling not just me but my friend who works with computers for a living and advised me to test each memory stick.
There are only two things I have been told to try which are:
-CMOS(?) removing it for a few hours and putting it back, and
-the sensors.
I apologise for a lengthy post but I wanted to make sure it was clear what I have experienced, what I have done and what options I'm aware of that are open to me.
I had hoped that one or both of the memory sticks could be replaced.
I have looked on HP websites for help but I could not find anything that exactly matched my problem and/or Laptop model and I am planning on reinstalling Windows 7 again from 32 to 64 bit as my friend has told me 64 bit is what I should be running.