Computer takes multiple attempts to boot

[Shrimp]

I've noticed in past few weeks that my computer will never boot up first time. It takes me about 3 or 4 times of power off/on before it will finally boot up properly.

Anyway I can find out what exactly is wrong?

Thanks

 

[SYL\X/3K]

might be a bad power supply or a failing RAM
try to swap some parts and see wat happens

 

[Ste]

Memtest86 and a DMM are your best friends.