AMD FX-8320 clock speeds lower than they should be in game

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LukeGwood

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Jun 1, 2015
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I have an AMD FX-8320 @ 3.5ghz OC'd to 4Ghz. I usually get ~250 FPS in games such as CS:GO. However my FPS drops massively to anywhere between 40-70 FPS, and clock speed drops down to 1.4GHz. . Any ideas as to why? Thermal margin according to AMD Overdrive is 25 Degrees in game and 35 degrees when surfing web and general multi-media stuff.

Specs :
AMD FX-8320 @ 4.0GHz
ASUS M5A87L AM3+ ATX Motherboard
Cooler Master Hyper 212 Evo CPU Cooler
500GB HDD
Cooler Master B600W PSU
nVidia GTX 660 FTW ACX Edition.

Need anything else let me know!
 
Solution
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That's to be expected because that motherboard is not really appropriate for that CPU. You can't use a cheap motherboard with a 125W CPU and expect it to work fine; it supports the CPU, but it has to throttle it to protect itself. You also didn't help by not using a top-down CPU cooler to cool the VRMs. Could you replace it by a better motherboard that can really support that CPU?
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LukeGwood

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Jun 1, 2015
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Sorry i mean the ASUS M5A78L. Here is a link to the MOBO https://www.asus.com/Motherboards/M5A78L/.

Also, this also happens when not Overclocking!
 
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GhislainG

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Jul 16, 2008
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That's to be expected because that motherboard is not really appropriate for that CPU. You can't use a cheap motherboard with a 125W CPU and expect it to work fine; it supports the CPU, but it has to throttle it to protect itself. You also didn't help by not using a top-down CPU cooler to cool the VRMs. Could you replace it by a better motherboard that can really support that CPU?
 
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Solution
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LukeGwood

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Jun 1, 2015
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I figured that it would be the MOBO. I read that it supported a 125W CPU.

I can replace the Motherboard, do you have any suggestions? I've seen a lot of people say the ASUS M5A97.

 
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LukeGwood

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Jun 1, 2015
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I can afford them both, which would you suggest out of both boards?
 
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GhislainG

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Jul 16, 2008
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They both are good entry-level motherboards. Personally I'd go for the Gigabyte because of the 8+2 VRM versus the 4+2 VRM on the Asus. For not much more money, you can get the Asus M5A99FX Pro R2.0 or the Gigabyte 990FXA-UD3. Don't go for the less expensive GA-970A-D3P or the GA-970A-DS3P; they are not as good as the GA-970A-UD3P.
 
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