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AMD FX (Bulldozer) Owners Club! - Page 267

post #2661 of 8112
Quote:
Originally Posted by ht_addict View Post

Question on Voltage and LLC of CPU and CPU/NB. Playing around with my FX8150 I have had it stable at 4.68(18x260)Ghz for 8hrs on OCCT. I have my Vcore set at 1.525 and CPU/NB at 1.4, with LLC both set to High for both CPU and CPU/NB. Now OCCT shows a max vcore of 1.5V, so I've dropped my vcore to 1.4875 and cpu/nb to 1.375. So now OCCT is showing vcore max of 1.46v. I'm going to run it for 8hrs and see if it remains stable. If it does should I leave it as is or is it better to decrease my vcore to 1.46v and up my LLC to Ultra or Extreme? Temps are at 37-40oC on Cores and 47oC on CPU.

This is the vcore drop when under load. You want to increase the LLC to ultra high so they do not drop. If you keep decreasing voltage you will eventually get to the point were it is no longer stable. The LLC controls how much extra voltage to apply when under load so there is not a vcore drop. The older bios used to be set a little different where ultra high would increase voltage like .02-.04v and extreme would increase .04-.08v. With the new bios the LLC ultra high keeps voltage steady at what you set it at and then extreme increases voltage by .02-.06v.

I have noticed that there are several things they have changed in the new bios with the LLC that should not have been changed for the asus chv. I have contacted them and am waiting for them to get back to me. You do want to try to keep voltage as low as you can without losing stability. I would put llc on ultra high for cpu and high for cpu/nb and then decrease voltage until you lose stability and then increase voltage .025v and then the voltage should be nicely set for what clock you have.
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post #2662 of 8112
I second mike. when you are trying to figure out your oc turn off all power saving features. Your not going to know whats really going on if the mb/cpu is over riding and doing things on its own.
After you find your max stable oc then if you want turn on power saving features.
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post #2663 of 8112
Quote:
Originally Posted by mikezachlowe2004 View Post

The reason I said this is because they asked about the stepping and overclocking. Usually when someone is overclocking they do not want power saving features in order to get more performance. I did not say anything about it increasing stability.
I am not sure what point you are trying to make but I was just helping them out. They asked and I answered with my solution. It works for me and maybe it will work for them.
Also, to do the above is the best way to get started for overclocking. Also, you do want to disable these things because some of them cause the cpu to throttle when under full load and thats what the one guy was talking about. Some people like myself do not like the cpu multiplyer to be lowered.

Agreeded, it use to down throttle itself before i updated to latest bios revision and wreaked havoc on my game FPS/ Benchmarks/ etc, ( I'm keen on $ now and need them enabled). Just stating all power saving features WILL work on Biostar 990fxe extreme edition if your looking to over clock even if HPC( High performance computing) is on!
Edited by Natesters93 - 1/8/12 at 1:33pm
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post #2664 of 8112
Okay so some times has past and i hope these questions have been offically answered. What is the max safe voltage for the 8120/8150 and is HW Monitor still a realiable temp reading? If not what program is?
post #2665 of 8112
Quote:
Originally Posted by mystikalrush View Post

Okay so some times has past and i hope these questions have been offically answered. What is the max safe voltage for the 8120/8150 and is HW Monitor still a realiable temp reading? If not what program is?

Here, hope it helps

Also, I like HW monitor. Never had a problem with HW and my fx.

fxtemp.jpg


source: http://prohardver.hu/dl/cnt/2011-10/78307/AMD_FX_Performance_Tuning_Guide.pdf
    
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post #2666 of 8112
Quote:
Originally Posted by mystikalrush View Post

Okay so some times has past and i hope these questions have been offically answered. What is the max safe voltage for the 8120/8150 and is HW Monitor still a realiable temp reading? If not what program is?

I would say up to 1.55v is pretty safe for air/water as long as the temps stay under 61C. Yes HW Monitor works just fine.
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post #2667 of 8112
Funny, I still spend more time around AMD forums than Intel's... frown.gif
Guess I miss the community.
    
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post #2668 of 8112
Thanks for the help guys.
post #2669 of 8112
Quote:
Originally Posted by alexmaia_br View Post

Funny, I still spend more time around AMD forums than Intel's... frown.gif
Guess I miss the community.

If you got the money to sb-e i would def get one too. Those chips are monsters.
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post #2670 of 8112
I started overclocking my 8120 and found out pretty quick I got a dud. Needed 1.44v to even last 2 minutes in prime at 4.4GHz, seems like 2 of the cores are pulling the whole thing down. If I pushed the voltage any higher my H60 couldn't keep up and core temps would skyrocket frown.gif

Good news is I found someone who wants to take it off my hands for a good price, so ordered an 8150 and hoping I have better luck! I kind of need a good overclock as I'm adding two 7970s.
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