Appropriate speed for a FX-8350 that's liquid cooled?

NessDan

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Dec 8, 2013
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Hey everyone! Would you happen to know a good speed for an overclocked FX-8350 on liquid cooling? (In terms of GHz, of course.)

I built a machine with an AMD FX-8350 CPU. It's being liquid cooled by a Cooler Master Seidon 240M. There are 6 fans cooling this machine (2 of which are part of the Seidon 240M.)

Now, after many days of playing with speeds and voltages, I found the highest and safest I could put it at was 4.5GHz (the stock speed is 4.0GHz) I hope I'm not sounding too greedy, but I was expecting to get a much higher overclock - especially with liquid cooling. My goal was either 5.0GHz but if not that, 4.8GHz.

Here are the screenshots of my configurations:

g8tyEfx.jpg
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I ran Prime95 for 10 minutes (Small FFTs) and here are the results:

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I'd like to draw attention to the socket's max temperature (59°C). This is definitely my first and bottleneck I've experienced. I've been told that the temperature here should not go over 70°C. I have no clue why it's reaching these temperatures. I bought a spot fan to try and solve the issue but this has not fixed it (in fact, I saw no change in temperatures with it on either!)

Here's a picture of the spot fan blowing towards the socket:

OjAHoUg.jpg


The CPU temperatures are behaving well and not going overboard at all (at a comfortable 41°C).

Any ideas what's holding me back? Every time I try and push the machine further, I notice throttling (CPU speeds dropping to the ~1.0GHz.) This occurs when the socket temperature gets close to it's maximum temperature.
 
Solution
check your fan speeds for your seidon 240m. It's not an amazing cooler but you should definitely be able to get to 4.8 GHz with that cooler, it's more than halfway decent. You should be able to run voltages at ~1.38 or 1.39 (already being conservative here) to support a 4.8 GHz overclock. Your temperatures don't seem to abnormal, the CPU shouldn't throttle until it reaches almost 90 degrees celcius. If you never get over 75 degrees C then you probably have a safe overclock.

crisptofuring

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May 10, 2013
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check your fan speeds for your seidon 240m. It's not an amazing cooler but you should definitely be able to get to 4.8 GHz with that cooler, it's more than halfway decent. You should be able to run voltages at ~1.38 or 1.39 (already being conservative here) to support a 4.8 GHz overclock. Your temperatures don't seem to abnormal, the CPU shouldn't throttle until it reaches almost 90 degrees celcius. If you never get over 75 degrees C then you probably have a safe overclock.
 
Solution

NessDan

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Dec 8, 2013
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Thanks for the response.

The Seidon is definitely doing a great job at keeping the CPU cold - the issue is the socket. That's what's getting hot. Am I misunderstanding what the liquid cooling is doing? Is the liquid cooling also cooling the socket as well as the CPU?

I'll give it some tests tomorrow and come back with the results.
 

toolmaker_03

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Mar 26, 2012
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That CPU is already getting warm at 4.5 and I do not consider that cooling unit as water cooling. It is a little better than an air cooler, and as such you get a little better results than what would occur on a air cooler, but that does not mean that 4.7 to 4.8 is going to be achievable on that type of system. I have a nice system that can handle a 4.7 clock on a FX8350 but I have found no reason for me to clock the CPU at this time there is no games on the market that justify the need unless you are playing at 4K.



 

NessDan

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Dec 8, 2013
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So I'm back with some more problems! :)

Using both this guide and this video, I tried to overclock to 4.8GHz without much luck. Check the temperatures:

TZKVya1.jpg


Not good. That's with running Prime95 for 2 minutes - not to mention that it was on a steady increase so I'm sure it was very capable of going over those temperatures. Looking back to the picture in my original post, am I completely missing my CPU socket here somehow? I feel like it's not being cooled at all :/

So here are my overclock settings. Am I doing something that's painfully obviously wrong?

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VitaminR

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Jan 11, 2014
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Is that 1.48 volts I see in the BIOS? With LLC on UltraHigh thats going even higher. Only need like 1.38 for 4.8 GHz and I have my CPUNB @ 2600, Use UltraHigh with only 120% capability and NB on regular and 100 with the 1.375 core voltage. I have 8350 but with Crosshair V Formula but XSPC watercooling kit with a 2x 120 rad and also a 1x 140, I still had to put a fan on my socket and my room is cool. . . . . The fan needs to be blowing on the back of the motherboard where the heat sink back plate is. I put one between my case, but some have this feature like corsair case. Nice! Took me a while figure it out, but with all I have done the socket can still get hot under stress test. Case is real important for FX overclock and motherboard power cooling. I have Arc XL case and the watercooling plus fan on socket. I can get 4.8 but my socket will hit 70-74c and cores 58-60c