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Overclocking FX-8300 Review of Results - Page 2

post #11 of 19
Thread Starter 
Thanks everyone.

I will download hwinfo tonight when I get home from work to see if that is getting me different readings. You also mention that maybe i'm reading the wrong temps, can you point out in my screen shot what is truly the socket temp and what is core temp?

This is my first build, so I wouldn't be surprised if I did not seat the CPU cooler correctly, or maybe it is not tight enough on the CPU...is that even possible? I didn't want to tighten the cooler too tight to damage the cpu...

You say that I should have 1.3v to run at 4.0 ghz, why does it seem to run decent at 1.25v and temps only get hotter when upping to 1.28 even. The thing I did was run prime95 at default and saw that the voltage in CPU-Z was 1.128 at 3.3ghz for the entire 15 minute test. That seems to be far below what the "default" is when I which voltage from auto to manual in the bios (1.2875v).

All of this is so new to me, but very interesting and fun to do, so I hope to get it right to enjoy a little more speed. I am just very cautious to fry the cpu!
post #12 of 19
Couple of things...

#1 it is prudent to be skeptical of any utility that reports results that seem unexpected. In my experience socket temps are almost always equal to or higher than my CPU temps. Never have i seen it reversed. Could be, but not in my experience. Hence my hypothesis they are labeled wrong.

Socket temp sensor can go by a lot of names depending on the utility used and sometimes temps can even be mislabled.

Using multiple software utilities (not at the same time mind you) to help verify what is actually what can be helpful. Then generally stick to the one you like best but keep the others in your back pocket for troubleshooting odd behavior in the future.

#2 actual in use temps trump whatever setting you use in your BIOS. There are many reasons for this but ideally you should know given 10 min of completely idle state what your min max and avg volts are...and after 10 min of constant load what your min max and avg volts are for everything you can reasonably monitor.

It will become very clear where the issues lie with good data collection practices. This will also allow youbto make much more intellegent use of LLC if your board supports it rather than just throwing it around without understanding if its good badnor indifferent to your cause.

The cause of course is always fastest clocks at lowest temps and volts with 100% stability under prolonged stress.
post #13 of 19
It isn't that HWINFO64 delivers better information so much as it delivers more information. For instance one of the things it will show is VID. With all the power saving stuff and turbo turned off that is the voltage that your CPU will run best at, at that clock. In the pic I provided CnQ is still working so the VID is off a bit, but it shows a VID of 1.313 volts while under 100% load I ended up setting it to run at 1.356 volts. Also note the maximum temperature of 38C with air cooling.

While it is possible to damage an intel CPU by overtightening the hold down bolts we are talking about FX here. Run the bolts down until you feel them bottom out. Also make sure to do it evenly. Do not tighten one side first and then tighten the other side. Doing that WILL cause overheating! Voice of experience here......redface.gif
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post #14 of 19
Quote:
Originally Posted by ferchkc09 View Post

Thanks everyone.

I will download hwinfo tonight when I get home from work to see if that is getting me different readings. You also mention that maybe i'm reading the wrong temps, can you point out in my screen shot what is truly the socket temp and what is core temp?

This is my first build, so I wouldn't be surprised if I did not seat the CPU cooler correctly, or maybe it is not tight enough on the CPU...is that even possible? I didn't want to tighten the cooler too tight to damage the cpu...

You say that I should have 1.3v to run at 4.0 ghz, why does it seem to run decent at 1.25v and temps only get hotter when upping to 1.28 even. The thing I did was run prime95 at default and saw that the voltage in CPU-Z was 1.128 at 3.3ghz for the entire 15 minute test. That seems to be far below what the "default" is when I which voltage from auto to manual in the bios (1.2875v).

All of this is so new to me, but very interesting and fun to do, so I hope to get it right to enjoy a little more speed. I am just very cautious to fry the cpu!

I understand, you're new to it and it's good to see you being cautious rather than reckless.
The higher in clockspeed you go, naturally the more voltage it needs to operate with stability. BTW with most FX chips 1.40v's is the default voltage set by most boards if all is left in "Auto" but in most cases you don't need it that high.

1.35v's is a good voltage to get 4.0 from it without making it run too warm. I have several of these FX chips and they all seem to like 1.35v's to get 4.0 from, some having a stock speed at or above 4.0 such as my 4350, 8370 and even my 9590.

Just know if you should ever entertain the idea of getting a 9370 or 9590 in the future I'm not sure whether the board you have would handle it without problems, I do know the Sabertooth 2.0 and Crosshair V-Z can.
Also know you won't run it on aircooling for long either, those chips create an insane amount of heat - If you didn't have cooling problems before, you will with one of these chips, esp if trying to aircool it.
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post #15 of 19
Thread Starter 
Maybe that is what I'm not understanding. I ran it at 1.265v for 4.0ghz and its already hot. So wouldn't running it at 1.35 make it even hotter? Or am I missing something? I did download hwinfo64 just haven't had time to rerun tests
post #16 of 19
"Also know you won't run it on aircooling for long either, those chips create an insane amount of heat - If you didn't have cooling problems before, you will with one of these chips, esp if trying to aircool it."

I suppose we will just have to agree to disagree about air cooling. There are pics of my air cooled rig in my sig rig.

Wit proper air flow through the case it should not be overheating at those low voltages. When I got my first FX I stuck it in an old case that had 3-92mm fans and I had to remove the side cover to run it. I got a single tower air cooler and it still overheated.

So I bought a $45 case with 3-120mm fans and it stopped overheating. From there it was a matter of upgrading the case fans and going with powerful twin tower coolers as the clocks went up. I'm still using that case too with the back cut out and 4-120mm fans.
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post #17 of 19
Quote:
Originally Posted by miklkit View Post


I suppose we will just have to agree to disagree about air cooling. There are pics of my air cooled rig in my sig rig.

Wit proper air flow through the case it should not be overheating at those low voltages. When I got my first FX I stuck it in an old case that had 3-92mm fans and I had to remove the side cover to run it. I got a single tower air cooler and it still overheated.

So I bought a $45 case with 3-120mm fans and it stopped overheating. From there it was a matter of upgrading the case fans and going with powerful twin tower coolers as the clocks went up. I'm still using that case too with the back cut out and 4-120mm fans.

I agree - We can disagree no prob. biggrin.gif

I had a different experience with my 9590 but the issue has been attributed partially to the CPU's TDP being so high with these. My point was in most cases if trying to run a 9xxx series you'd best be ready to go for some watercooling because in most cases air doesn't cut it.

You and I can adjust things to make it work but that takes the know-how to do it, many don't have it and I always say that since I'm not assuming what others may or may not know, esp if they have been asking questions about it in the first place.

Better to give a safe rather than sorry answer.
@ the OP, if it's heating up that much with no more voltage you do have an issue, do check to see if remounting the cooler will help, sometimes a bad mount will cause such problems and a simple remove and remount of it works.
However if you don't have any replacement TIM (Thermal Interface Material) leave it alone until you can get some. Keep voltages where you have them and don't increase them until you have a chance to check that, do some work on the case cooling, whatever it takes to make things better.
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post #18 of 19
Thread Starter 
I did actually reseat the cooler and added more case fans. I ran prime95 for 15 minutes at default settings and hit a socket temp of 44C and core of 27.5. Those where about 10C less than a previous baseline I did. Hopefully this helps
post #19 of 19
Good to hear, adding extra fans to the case was probrably what made the difference but the reseating didn't hurt either.
Next would be to repeat your testing and see what happens. If concerned about voltage you can try either 1.30 or 1.32v's to make sure it's stable at 4.0.
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