My computer stops booting at random places.

Centipeed

So, my computer has been acting gay. It's been freezing (Windows) recently, for some reason (It's brand new, built about a month ago, if that). A restart showed that it didn't want to boot into Windows, but then another restart had it going fine. Now it won't boot into Windows at all. However, it STOPS booting at a seemingly random place each time.

All of the following have happened:

It got to the Windows loading screen, but the bar that shows the loading never started to animate.
It got to the safe-mode prompt, and I pressed Safe Mode, and it put all those file loading messages on screen, then froze after going blank.
It didn't POST.
The monitor said that it was receiving no signal, on starting the computer, so nothing displayed.
It POSTed fine, but after the POST screens, it just went blank and didn't do anything.

The fact that it's messing up in so many ways leads me to believe it's not something that's trying to start when Windows boots that's causing the problem. However, I've never seen a computer fail to start in such a variety of ways in the space of ten minutes, so I turn to you guys for help. Please help.

wasted pixels

So, my computer has been acting gay.

It's polite, well-groomed, a snappy dresser, and gets long great with people's mothers? Come on, there must be a better way to summarize its behavior.

In all seriousness, if you can get to the BIOS, check the date settings (bad battery) and temp (could be overheating). If those numbers look okay, try another power supply if you have one. I'm constantly amazed by how odd a computer's behavior turns when the PSU is going bad.

Mr_Rose

This is another problem I've had before, but never solved myself. In fact, no-one solved it, we had to get the mobo replaced, as the official professional diagnosis was "daemonic possession" and I wish I was joking about that.

Take it back to whoever sold it to you and bring a priest.

Centipeed

If I can get to the BIOS, then I will check that stuff. It doesn't always even get that far, though

After some more testing, it seems to have settled into regular behaviour. The screen will sometimes register that the computer has been turned on, and the fans will start running, but the POST beep never rears it's head, and no text ever shows on the screen.

mrcheesypants

Also TURN OFF QUIET BOOT IN BIOS! This is for your computer now and any computer later. Doing this might give you a clue as to why it wont boot.

Also is you're computer a laptop or desktop?

Centipeed

Desktop. I would turn off quiet boot, but I can't access the BIOS, now.

wasted pixels

Borrow or buy a new PSU, seriously. Hang on to your receipt in case it's a faulty mobo, but this sounds a LOT like a PSU failure.