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Low FPS problems (Just replaced GPU)

Last response: in Graphics & Displays
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September 4, 2012 6:19:25 AM

So I initially had a second hand computer passed on to me. Initially, it had a 8800 GTX in it which gave me random lines appearing on the screen, ridiculously low FPS (~15 in TF2 and will crash constantly), and average temperature has been around 70 C so I assumed it was fried. I don't play anything that needs a $300 GPU so no point in me spending that much so I got a Radon HD 7750. Yet problem was still remains.

With the new GPU, my FPS in Starcraft 2 starts at around 50-60 FPS but 10mins into the game, I've seen it drop to 1 FPS but average around 15-25 FPS. I am running all my settings at the lowest. My game starts slowing down before my friends Sony Vaio laptop :??:  .

Asus Radeon HD 7750
Intel Core 2 Duo 6600 2.4 GHz
4G Ram
Windows 7 Ultimate
20" monitor: 1600 x 900

I dont know alot about hardware but I would assume that my specs are good enough to at least run SC2 at the lowest setting which makes me wonder if an actual part is faulty rather than the specs is lacking.

Thanks
a c 106 U Graphics card
September 4, 2012 6:21:42 AM

did you wipe all of the nvidia drivers before installing the amd drivers?
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a c 191 U Graphics card
September 4, 2012 6:51:24 AM

What power supply are you running?
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a b U Graphics card
September 4, 2012 7:50:30 AM

maybe either the gpu or cpu is overrheating. make sure you have good cooling in your case. and remove and clean the dust and dirt from the vents and fans
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a b U Graphics card
September 4, 2012 8:29:43 AM

Good fps initially with a slowdown after a while points to a) Memory shortage or b) overheating.

You have enough system RAM, so I suggest you check your temperatures. CPUID HWMonitor is a good tool for this; it shows min, max and current temps.
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a c 191 U Graphics card
September 4, 2012 2:47:10 PM

I'd also say look at the temperatures as well.
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September 4, 2012 3:07:30 PM

your processor is too weak. SC2 is a processor hog. if you can afford a c2q you'll be much better off. one of my friends drops down to 22ish fps and he has a gtx470 paired with 8gb of memory and a 2500k overclocked 4ghz.
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a b U Graphics card
September 4, 2012 3:28:05 PM

sepayne21 said:
your processor is too weak. SC2 is a processor hog. if you can afford a c2q you'll be much better off. one of my friends drops down to 22ish fps and he has a gtx470 paired with 8gb of memory and a 2500k overclocked 4ghz.


Incorrect. A core 2 E6600 handles SC2 just fine, even on large 8 player maps. My previous rig had almost the same specs (the GPU in that rig was actually weaker - 8800 GT). While SC2's system demands lean more toward the CPU than most games, those demands are actually pretty low, as is Blizzard's M.O.

just to reinforce the above posts, your symptoms do sound like a heat issue.
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September 4, 2012 4:00:15 PM

I also am inclined to say overheating.. I suggest getting open hardware monitor ( free ) to monitor temps.
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