I recently bought an NVIDIA EVGA 750 ti FTW and noticed my pc sometimes would boot and sometimes it didn't. I figured it was my PSU cause my keyboard wouldn't light up. I saw a few PSU on sale on my budget range. My question is... 550W enough to power my pc?
Yeah 550W is plenty. The 750 Ti uses almost no power. It doesn't even have a PCIE power connector.
I'd say it may be something else. Make sure all your drivers are up to date. The PSU has enough juice but may be failing. "Failing to boot" what does that mean? Like doesn't turn on? Gets stuck at the Windows screen?
I had noticed that if I stretch out the PSU power cable, it's able to boot without any problems. Changed the cable for a brand new one and still had random unsuccessful boots. Same situation, turns on but won't POST