Operating System: Microsoft Windows Vista (64-bit)
So, Ive had this computer for a while, (not too long) and I've noticed a lot of people complained that the Screen turning black and not working again. Now, in my case, my screws will not come undone, so I'm unable to check the memory problem (as the lighting sequencing indicates). As such, is there ANY other way to check what's wrong? The screws are stuck in place, practically impossible to turn. This is the first time this has done anything like this, and I've already tried the power resetting. It doesn't fix anything.
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I see that your computer is not turning on and you are getting a three blink code pattern. You are right that does indicate a memory problem. If, you could get into the operating system then there would be memory test that you can run but only if you can get into the operating system. You will need to open it up and remove the memory. Here is the Maintenance and Service Guide for your model page 50 has removal instructions if you can get past the screws.