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[OFFICIAL] FX-8320/FX-8350 Vishera Owners Club - Page 5183

post #51821 of 68053
Quote:
Originally Posted by godiegogo214 View Post

So I ended up sacrificing the bottom radiator and got a 1200w be quiet dark power pro psu....also I did the fans on the back of the socket and vrms...they do help.

this is what I have so far after after 10 min small fft on prime



any tips or thoughts to tweak this better? what do I have to provide to you guys for info?

I can't get to 4.9....I think I will be satisfied with 4.8ghz but I want to tweak this to get the best 4.8ghz I can get.....ram nb ht tweaking..... any tips are apreciated

Or any tips to push higher I'm all for it

Lap the chip!
post #51822 of 68053
Quote:
Originally Posted by mus1mus View Post

Lap the chip!

lap the chip? do you mean run a long blend test? i'm trying a custom test with 12000mb of ram use and 2 cores are failing inmediately
post #51823 of 68053
Quote:
Originally Posted by godiegogo214 View Post

lap the chip? do you mean run a long blend test? i'm trying a custom test with 12000mb of ram use and 2 cores are failing inmediately

Lapping - grinding the chips lid to flatten the surface to promote a better CPU to Cooler mating surface.

Could drop temps significantly. Esp on your system with a very low Vcore but skyrocketing temps.


Edit: check your TIM application btw.
post #51824 of 68053
Quote:
Originally Posted by godiegogo214 View Post

Quote:
Originally Posted by mus1mus View Post

Lap the chip!

lap the chip? do you mean run a long blend test? i'm trying a custom test with 12000mb of ram use and 2 cores are failing inmediately
No what he means is take the chip out. And flatten and polish the IHS.

A lot of CPU's are either shipped with a convex or concave heatspreader. Both often make for less than ideal contact to the cooling device of choice. So what you do is you start with a low grit of sandpaper. Say 800 or so. Stick it onto a perfectly flat surface. Say a glass table and run your cpu up and down the sand paper. Do a couple of sweeps then rotate 90 degrees. Repeat until you have sanded down to the copper of the heatspreader. Then go for higher grit paper. Like 1200 then repeat. Rinse and repeat this process til you get to about 2500 grit and then you have a lapped processor.
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post #51825 of 68053
Quote:
Originally Posted by godiegogo214 View Post

lap the chip? do you mean run a long blend test? i'm trying a custom test with 12000mb of ram use and 2 cores are failing inmediately

Its like this: http://forums.anandtech.com/showthread.php?t=2300800

first make sure you apply the TIM properly, because you can have such an flat heat sink and CPU surface but if you apply TIM the wrong way you will never see any gain in temps.

What you want is clean the CPU and the heat sink with a cloth and alcohol than apply a little pea size amount of TIM in the middle of your CPU, than mount the cooler on the CPU and let the heat spreader do the rest.

Make sure you have some smooth newer TIM because older TIM can be tricky to spread and in some cases some spreading is necessary but in most cases its not.

Good luck thumb.gif
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post #51826 of 68053
I remember reading somewhere that actually physically spreading the paste to a thin layer on the IHS is better than the regular pea dot or rice grain method
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post #51827 of 68053
Quote:
Originally Posted by Alastair View Post

No what he means is take the chip out. And flatten and polish the IHS.

A lot of CPU's are either shipped with a convex or concave heatspreader. Both often make for less than ideal contact to the cooling device of choice. So what you do is you start with a low grit of sandpaper. Say 800 or so. Stick it onto a perfectly flat surface. Say a glass table and run your cpu up and down the sand paper. Do a couple of sweeps then rotate 90 degrees. Repeat until you have sanded down to the copper of the heatspreader. Then go for higher grit paper. Like 1200 then repeat. Rinse and repeat this process til you get to about 2500 grit and then you have a lapped processor.

Just a couple things to point out.

1. Be careful when rinsing the CPU. I have seen unglued areas on my 8320E that became water entries to the innards of the chip. Make sure to dry it sooo well.

2. 2000 Grit or over is unnecessary to achieve a polished surface. 1000 Grit + Polishing Cream does it better and quicker.
Quote:
Originally Posted by hurricane28 View Post

Its like this: http://forums.anandtech.com/showthread.php?t=2300800

first make sure you apply the TIM properly, because you can have such an flat heat sink and CPU surface but if you apply TIM the wrong way you will never see any gain in temps.

What you want is clean the CPU and the heat sink with a cloth and alcohol than apply a little pea size amount of TIM in the middle of your CPU, than mount the cooler on the CPU and let the heat spreader do the rest.

Make sure you have some smooth newer TIM because older TIM can be tricky to spread and in some cases some spreading is necessary but in most cases its not.

Good luck thumb.gif

Try this first. If it doesn't help, take out the CPU and check for flatness.

Quote:
Originally Posted by snipekill2445 View Post

I remember reading somewhere that actually physically spreading the paste to a thin layer on the IHS is better than the regular pea dot or rice grain method

Pea or line or spread method will not introduce large differences. Especially on water cooling. But is always good to try out which performs best on any system. TIM is not that expensive for trials. And each method will be tested first hand rather than perceived by the usual, "I heard" "I read somewhere" or "linus say" this method is best.
post #51828 of 68053
It depends on the TIM because some are thicker than others..

I use MX-4 for example and spreading is really not needed and it can really do harm to temps because you get micro bubbles.

Here is some explanation on how TIM spreads:

https://www.youtube.com/watch?v=EyXLu1Ms-q4

https://www.youtube.com/watch?v=-hNgFNH7zhQ

https://www.youtube.com/watch?v=TnyoJtv9Cx0


Last one is one of my favorite methods tongue.gif
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post #51829 of 68053
Laughing about washing the motherboard under water, seeing as you actually can without harming anything

Just not with those hard drives
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post #51830 of 68053
Quote:
Originally Posted by mfknjadagr8 View Post

maybe a run on very high ibt avx to see how stable you are smile.gif

i ran prime 95 for 12 hours no issues and also aida64 stress test including gpu for 12 hours no issue ill show u a quick screen
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