frame rate drops?

This is going to be a very difficult to troubleshoot problem... Please forgive any grammar/spelling mistakes, didn't sleep last night.

During the holidays, I purchased multiple new upgrades for my budget gaming pc, of which include an evga geforce 760 (previously bought an ati 7970 but had to return it because it had faulty fans and amazon didn't have anymore in stock...), an amd fx 8350 8 core cpu, a 750 watt corsair tx series power supply (please note that currently I have an older 500W ocz psu in currently as the corsair is being rma'd at the moment), 2x8gb gskill ripjaws DDR3-1600 ram, a 1tb wd black (which is in the process of being rma'd now), and a ups (live in lightning prone area, I voted to grab a decent 1000W apc to lessen my worries).

My other parts installed at this time are my asrock 970 extreme 3 motherboard, coolermaster hyper 212 heatsink, and a samsung 250gb ssd.

Now for the problem: I was playing league of legends one day before work after everything was installed and working great, all the new parts were in (the 7970 was installed at the time), things were great, max settings at 60fps on aram matches. I turned off my computer and left for work for the evening, and after I came home, I did my usual power-up of my computer and relaxed a bit. I started to play some lol before bed, an aram game, and suddenly I got some really really really bad framerate drops (from 60 to roughly 10-20) and no explanation of what just happened. I spent the next few weeks troubleshooting and I have no solution so far (some theories, however). lol plays around the same framerates with different graphics cards installed, different ram, and different power supplies, even with reformats. I noticed the trend wasn't present in all of my games, but it was in others. smite I noticed gave me some pretty bad framerate drops where it shouldn't (all matches on all gametypes start out pretty well at around 40-60 fps then slowly degrade to 20ish), far cry 3 framerates dropped when I LOWERED settings, chivalry was ata constant 25 or so (if i had to guess), and starcraft 2 had various framerate "hiccups". some of the games I had no problems with were skyrim, titan quest, hearthstone, and paranautical activity.

a full list of my changes are as follows:








Only things I didn't change out were the motherboard, the cpu, and removing the computer from the ups. I'm afraid that it might be one of the first two, specifically the motehrboard as it is well out of it's warranty period (it's about 2 years old now).

Any help is appreciated, if I left anything out, please let me know and I'll get it to you posthaste.

also, my computer is running windows 7 pro.
2 answers Last reply
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  1. Hi,
    that 500w psu seems too weak, the 12 v rail to the gpu is probably droping to much and the grafic card is entering panic mode, try underclocking and undervolting the cpu and test it again, or wait for your new psu.
  2. biflash said:
    Hi,
    that 500w psu seems too weak, the 12 v rail to the gpu is probably droping to much and the grafic card is entering panic mode, try underclocking and undervolting the cpu and test it again, or wait for your new psu.


    The unfortunate thing is, though, that it happened with the 750w as well, regardless of the graphics card that is installed, I still experienced the same issues (albeit at different graphical settings because the 5770 is a significantly weaker card than the other two) across all games.
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