Originally Posted by SolidScorpion
What kind of video card should I use with a bio-star Tz77xe4 & a i5 2500k with 650 watts?
Originally Posted by TwoCables
Oh no. That's a very
low-quality unit (it's an 'avoid at all costs" type of PSU). I personally wouldn't invest any money in any new parts (especially not a video card) until this PSU is replaced with a unit that is at least decent. Fortunately, if you're going to have just one video card, then you can get any good quality-made 450W PSU and have all the power that you'll need.
So, it's up to you, but I recommend getting a better PSU first. The quality of power that it's delivering is harmful to everything that's connected to it, except it's not going to be noticeable right away. It can take a while. This is due to the power output being "noisy", 'dirty" and unstable.
If anything, just avoid all overclocking while this PSU is powering your system.
I hate when the big wigs post this stuff.
From the OP, I can make a few assumptions right off the bat. He's probably not overclocking, and he's probably not running a crazy system.
SO now that we got that out of the way, we know this powersupply is far from top quality. Does that mean you tell the OP to not even bother? Of course not. Just because this PSU does not give a consistent energy supply especially at high usage does not mean his computer will blow up, he should be good with a video card that requires no more than 500w.
Your system is not going to blow up, catch on fire, die, etc... etc... any faster, although your PSU will... but it will not take components with it. This fear has come from many, many..... many people who have completely killed there entire system from overclocking on a bad powersupply.
As long as don't go over what the powersupply can handle, and don't change settings (overclocking) you'll be fine. I've dealt with low end powersupplys plenty.