My old Alienware rocked the Casbah, but I don't know how they are now that Dell bought them out. But yeah, they make seriously rockin' gaming systems and the prices compete with home-built systems. If you don't need that much horsepower, I've heard decent things about HP's recently, and their prices will probably drop because of all the scandalous stuff in the news. When it comes to preB's those are the ones I'd suggest.
I've never seen a power supply cook under those conditions, and I can't imagine why it would based on the information you've given us. You probably shorted something as Rich suggested. I don't rubbing an eraser on RAM would short it out, but then again I've seen stranger stuff. Did you rub the eraser on the contacts? Take the RAM out and look at the contacts to see if there's still stuff on them. If there is, that would be a pretty good clue as to what went wrong I think
Using an eraser on something simple like a mouse charger or a cell phone charger, those contacts are a bit sturdier than RAM contacts so it works. But RAM is contained in a tight slot so it's pretty unlikely that the contacts would get dirty.
Who told you to rub an eraser on the RAM? Find that person and sue them for damages to your computer
I've never heard of that as being a solution to fixing memory issues... if anything it's pretty dangerous.
In the future, you might want to do things in stages. Say you get RAM, a video card, and a sound card... do each thing one at a time. Super-advanced PC builders might try to put more than one thing in at once, but extra-precautious people like me always do it one at a time, testing between items just to be safe. In the future you should consider doing that, taking your time to avoid problems like this
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