My computer sometimes crash and no signal on monitor

Hello,

Recently, I think it was January, my computer started facing issues while booting. I could not determine the cause of the issue, but I have found a workaround that "fixes" it temporarily (once). Once I press the power button on my computer there are generally several cases of stuff that can happen:
1. Computer enters bootloop. Restart button does not work. The bootloop looks like this (there are two distinct boot failures):
Computer turns on, there is no video output, stays for 12~ seconds, turns off
Computer turns on, keyboard flashes, Gigabyte logo appears, black screen with mouse pointer appears, turns off
Go to 1. This process repeats endlessly.

2. Computer turns on, but there is no video output, stays on until turned off by long pressing "on" button. Restart button does not work.
3. Computer turns on and windows successfully boots

The temporary fix that I found to work is to remove any number of RAM sticks. I usually remove one and just stack them until I'm left with two, then I put all of them back (I have 4 sticks). Any stick can be removed for this fix to work. Once the computer is turned on, it will stay on, there are no BSODs, it works flawlessly as far as I can tell. I keep it on until I'm forced to apply windows updates. I have tested the RAM with memtest, they checked out.

hmmmmmmmmm

Good problem.

First thign I'd try is to take out ALL the RAM and then put in just one stick.

Try that.

If that works, swap that working stick for another unknown and test that.

Keep going until you have tried them all.

Mind you, this may, or may not show up a faulty stick and then you have to start inserting in two;s (all combinations) and then three's and then all four at once and shuffle them around in their sockets.

Once you have done that, if it's still mucking around on aany single stick, unplug ALL of the hardware leaving only video, mouse, KB and monitor...........even unplug your video card if you are using one and run it on the built in graphics (if it has one on the motherboard)

What we are trying to do here is to replicate the problem reliably so we can point at one particular piece of hardware and say "THAT'S IT!!!"

After all that it's time to swap out the power supply and after THAT it's swap the CPU and/or Motherboard time.


Ahhhh...afterthought........is there a fan on the CPU and is it turning....and the same question for the graphics card.

My bet is RAM or graphics card.

Cheers
:)