Suddenly wouldn’t start after 4 months, or just after your cheap 90 day warranty expired….. in my opinion that is really really bad……. It worked fine before this. I thought it was the power supply, but tvsf wasn’t it. So it’s probably the damn motherboard. I’ve owned a lot of computers and never had a motherboard go out on me….. and definitely not in 4 months. There is no way you should be able to sell me something that is going to break in 4 months when nothing I did caused this issue. It just sat on my desk and I didn’t do anything that would  put stress on this unit. This is your fault. You sold me a faulty piece of garbage and i am forced to pay the price…. When i looked this up the power supply that came with this was not made for a dell. It said online that it was made for a Hewlett-Packard….. That very well may have something to do with why it isn’t working. U best know I will look into this. I’m very unhappy