Performance in FX-8320

Andrew Buck

Honorable
A lot has changed since I was last on here. I upgraded my old case from a Rosewill LINE-M to a Cooler Master HAF 912, and with that, I upgraded my MSI 760GMA-P34(fx) to an ASUS M5A99X R2.0 EVO. This has more fans and all, but towards the end of my MSI 760GMA motherboard's use (about a month or two), my CPU performance has dropped. I use PassMark mostly for tests, and I used to get, at stock speeds, about 8200 or 8300. Now I only get about 7600-7900. When I overclocked to 4 GHz+, I used to get about 9000-9500. Now I get 8400-8600 (8700 rarely). I have enabled Load-Line for vCore and CPU/NB to Ultra High and High, respectively. Even at 4.4 GHz, I only get 8600. Battlefield 4's GPU usage on my 270X (1150 MHz core clock and 1425 MHz memory clock) is back down to around 60-80% (90-99 on small maps). My CPU usage is 50-80% on every core. I don't get why. My temps are fine at 14 C idle (obviously a lie, ambient temp is about 19-20 C) and the socket temp at idle is 35-45 C (a little high, especially at 1.3V, and I got this motherboard last night). Also, when I transferred my CPU, the thermal compound looked like it was a little dried up, but I didn't think too much of it, should have gotten some more. My main issue is my Corsair H60. Not a great cooler, but it is what I had to get for my old case. I don't have much more to be able to upgrade, either. How could I get my performance back? EPU is off, Cool N' Quiet is off, and just about every power saving feature is off. My PSU is 750W 80+ Bronze, and should be delivering ample current. Also, how should I go about overclocking a bit more. My load temps stress testing worries me, though. I get up to 70 C socket after 15 minutes of Prime95, but only 64 C after 2 hours of BF4. I need to know what is heating up my CPU socket so much, as it did on my old board (more severe then). Thank you very much, and sorry for being so scattered.
 
Solution
Before you do anything you should clean off your old thermal paste and replace it. That should solve your temp. problems. It also seems like your thermal sensors or the program reading them is giving you incorrect temps so your cpu may be throttling back under load when it's reaching high temps. That would be affecting your performance.

theadler

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Jan 28, 2014
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Before you do anything you should clean off your old thermal paste and replace it. That should solve your temp. problems. It also seems like your thermal sensors or the program reading them is giving you incorrect temps so your cpu may be throttling back under load when it's reaching high temps. That would be affecting your performance.
 
Solution

Andrew Buck

Honorable


Alright, thank you, what thermal paste do you recommend that is at Fry's?
 

Andrew Buck

Honorable


I bought formula 7 yesterday, put it in, and it is actually making performance better. Thank you for that! One thing, though - my prime number performance is still lower than it should be. Also, how far do you think I could overclock this with my setup? I am running 4.2 GHz at the moment.
 

theadler

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Jan 28, 2014
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With that CPU you could get 5GHz+, but probably not with that cooler. The radiator is pretty thin. I had the same one and "upgraded" to the 120x240 design and got worse performance. I've found it's the thickness of the radiator on these types of coolers that makes the difference. Something like the H80i should increase your cooling.

As far as the settings in Digi+ Power Control, try these settings. I've found they give the best stability when overclocking.

CPU Load Line: Ultra High
CPU Current Capability: 120%
CPU/NB Load Line: High
CPU/NB Current: 120%
CPU Voltage Frequency: Auto, Spread Spectrum: Off
CPU Power PHase Control: Extreme
CPU Power Response: Ultra Fast
CPU Power Thermal Control: 130%
CPU/NB Power Response: Ultra Fast

In your bios, make sure you have Turbo, APM, and cool n quiet disabled. Be sure to monitor you temps though.

These are setting that I got from Asus and they work great for me. Let me know how it goes.
 

Andrew Buck

Honorable


Right now, here are my settings:

CPU Multiplier: 20.0X
CPU Bus Frequency: 230
CPU VCORE: 1.35V
Ram Frequency: 1840 MHz
Ram Voltage: 1.55V
CPU/NB Frequency: 2538.7 MHz
CPU/NB Voltage: 1.25V

Most of those settings you put in, some tweaked, like the CPU Current and CPU/NB Current, both at 130%. Great performance, but the socket (I am 99% sure, CPU temperature under motherboard, different temperature than the core temperature) is getting up to 70 C while playing BF4, and I think it throttles. Any suggestion for cooling that down?
 

theadler

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Jan 28, 2014
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You'll either need to lower your overclock or get a better cooler. 70c is much too hot. With PM and the other cpu power control options disabled, it won't throttle down. It will just get hot. The throttling down done by those options is to prevent it from reaching such high temps. You might consider leaving them enabled or lowering your clock until you can get better cooling, just to be safe and not stress out your cpu with all that heat.
 

Andrew Buck

Honorable


It wouldn't be the cooler, because that takes care of the cores, not socket. The cores get to 50C on load and 24-26 on idle.
 

theadler

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Jan 28, 2014
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Make sure you have good airflow through the case and across the board. With the water cooling you're losing the airflow that's created by a typical HSF. You might consider upgrading your case to one with a fan mount on the right side behind the socket as well.