new GPU issues...

For the tech savvy out there, hear my delimma.

I have as follows:

Intel i7 CPU 870@2.93Ghz   2.67 GHz
8Gb Ram
Mobo- ASUS P7P55D-E Pro

I used to have this:
NVidia Geforce 460 GTX SE

Then I upgraded to this:
760 GTX

Keep in mind I made sure to uninstall all previous drivers, and then install all of the new 760 drivers without issue.

Now when I try to run certain games, like Planetside 2 and FarCry 3, my computer sometimes crashes to a black screen- the PC goes on running, but there is no sound or visual.  Also, I occaisionally have start-up issues where the fan and lights come on, but the computer will not POST.  These sound like power issues.  I've noticed my internal heat rising on PS2, especially when doing drop-pods or flying.

Any ideas folks?  Is this a heat issue, or a power issue, or something else?  Any input would be useful.  

 

What power supply do you have?

it's an Xtreme Gear 600W ATX model: PSAZ-CP600

it's an Xtreme Gear 600W ATX model: PSAZ-CP600

monstachruck

That could potentially be your problem.
That is a notoriously bad bargin bin PSU. 

can you recommend a better psu that would work with my specs?

can you recommend a better psu that would work with my specs?

monstachruck

Would depend on your budget but you can't go wrong with any PSU from Corsair, even their cheap CX line is decent or if you can spend a little more get a TX650 or GS600 (if LEDs are your thing).
Something in the 400-500w range will work just fine, since I don't expect you will be upgrading/adding another GPU in the near future. 

20:32:25 Just tried that- saw some improvement, but some games still crash to desktop.  Audio sometimes cuts off.