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Noise with auto voltage values on i7 950

post #1 of 19
Thread Starter 
Hello everyone, I just bough few days ago a new pc:

i7 950 @3.07GHz
Gigabyte x58-USB3
12 GB RAM Kingston 1066MHz (3x4GB in triple channel)
nVidia GTX570 (Gigabyte revision 1, not the one OC)
Corsair 800W Game Series

The rest of components arent too much relevant I think and anyway is on my profile

The problem I'm getting is that I get some small noise coming from the speakers (yeah, they arent the best, but work perfect with my older PC). The noises are like little interferences when page loads, when I write, etc... After reading everywhere about it, in someplaces I read write manually the voltage values in the BIOS. Im not use to OC so I just leave it and found that maybe I need those ferrite rings...

But after changing some windows settings (Win7 SP1 64) about the energy save (the option in the screensaver ), I get that lowering the CPU % power to something like 97-96% It dont make this noise. Then I get that it really was the CPU voltage.

I entered in the bios, there are some options that are new for me, but in the section abou vcore and so, there are always a left colum where it says "Normal" and below the values that are the standard (I think?). I wrote those values but get the same result. Then I saw that the CPU by default it have 3.22 GHz ANd the BLCK Is set to something like 134.9MHz

I know that i7 with turbo boost it increase the speed, but I wasnt doing something (just watching the BIOS). The temps looks a bit higher. I get about 31ºC in iddle and 55 in full load with Prime95 after about 30 minutes (I didnt tested more time because the fan speed increase and the temp lower 1 degree, then up again, etc..). But the degrees in each core is about 44ºC iddle and 68ºC full.

Then I entered in the BIOS again and change all in the voltage section to the values wrote on the left that are supossed to be normal, changed the BLCK manually to 133Mhz, and some other things like RAM (all to default, no OC here). Then I deactivate the Intel Turbo Boost and the value for the default vcore goes down to something like 1.24 (so I entered that value in vcore) I get no noise!!

BUT!! Sometimes, when I restart my pc, it restart again while the mobo logo appear and If I enter it says something like "the last time boot was bad, it s because something changed in the voltage section. this page not reflect the actual values".

So what I want know first is what value are interfering more in that noise?

What vcore is the correct one for a default speed?

What voltages should I change? Only vcore?

Why the BLCK is set to 134.9Mhz?

Aida64 says that the cpu have a multiplier of x24, but really is at x23

Are those temps ok? EasyTune6 only gives me 1 CPU temperature that match with what others app thinks that are the motherboard.

So please I really need help. My goal is get nice temperatures, no noise but either a bad boot while post

Ill post some pics from some app. I just use EasyTune6 to see the temp and cpu fan rpm but it shows also the defaults values wrote in the bios that are supposed to be the correct ones.

EDIT---

Here are the pics. All was taken while aida64 was doing the stress test, so you all can see the minimum, max and average of all values.


Edited by kitsune0 - 3/25/11 at 9:49pm
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post #2 of 19
I had the weird 24x multiplier too. But somehow I changed it back to 23. Anyways, the bios and realtemp might say the multi is 24x but it really is 23x. At auto my Vcore was 1.25, but I was getting horrendous temps even at stock, So I undervolted to 1.1V. I got it stable at 3.4ghz at 1.1v and I get a load temp of 58C. I would definately try undervolting your cpu because my auto voltage in my bios was setting it way too high (it was even setting my ram to 1.7v, supposed to be 1.65.) remember that all processors are different and you should always do a stability test after a change.
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post #3 of 19
Thread Starter 
Then when I get that error sometimes while resetting the PC that reset the bios to the default values, from where it could come? from the vcore or is because I set the BCLK to 133 manually? When the auto fuction is enable below it says that is set to 133 by default, but in other page of the bios where you can see the current BCLK, CPU and more statistics it says 134.9. If I set the option to manual and set 133 by myself, then it says 133 in the other page too.

The whole pc was working pretty nice with that vcore, I just dont know why it fails on reboot (sometimes). So my goals is find what option i need change and what should I leave in auto.

For example, now, with aida64 stress test, I dont get any noise and high temps...

PS: My ambient temperature right now is 23~24ºC
Edited by kitsune0 - 3/25/11 at 9:19pm
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post #4 of 19
Quote:
Originally Posted by kitsune0 View Post
Then when I get that error sometimes while resetting the PC that reset the bios to the default values, from where it could come? from the vcore or is because I set the BCLK to 133 manually? When the auto fuction is enable below it says that is set to 133 by default, but in other page of the bios where you can see the current BCLK, CPU and more statistics it says 134.9. If I set the option to manual and set 133 by myself, then it says 133 in the other page too.

The whole pc was working pretty nice with that vcore, I just dont know why it fails on reboot (sometimes). So my goals is find what option i need change and what should I leave in auto.

For example, now, with aida64 stress test, I dont get any noise and high temps...

PS: My ambient temperature right now is 23~24ºC
well, I dont understand what you mean by your speakers making noise and what it has to do with cpu voltages and the blck value. I'm thinking it might be a hardware related issue. You said you bought the pc, or did you build it yourself? I would play around with the bios options a little more before you RMA anything.

It's also a possibility that your hard drive may be going out and possibly corrupting the OS. Is it a bad boot randomly, or can you reproduce it intentionally? I would do some tests on your hdd with some free software, google will help you with that.

so definately deactivate turbo boost, see if you get the errors constantly.
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my first child
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post #5 of 19
Thread Starter 
Quote:
Originally Posted by kyle7412 View Post
well, I dont understand what you mean by your speakers making noise and what it has to do with cpu voltages and the blck value. I'm thinking it might be a hardware related issue. You said you bought the pc, or did you build it yourself? I would play around with the bios options a little more before you RMA anything.

It's also a possibility that your hard drive may be going out and possibly corrupting the OS. Is it a bad boot randomly, or can you reproduce it intentionally? I would do some tests on your hdd with some free software, google will help you with that.

so definately deactivate turbo boost, see if you get the errors constantly.
The noise comes always when I set the vcore to default that is 1.29v and isnt really big but is a pain (the noise comes from the chase too, but less loud). If I set it lower it decreased. With 1.28 there are no noise at all. It happens when the cpu is representing some graphics like loading webpages, scrolling text and sometimes it still but never happen when Im stressing the cpu.

And I cant reproduce the bad boot. I dont think its from HDD because it hapend on POST in the bios before something is loading from HDD and it reset again the whole pc and restore the voltage.

I had disabled turbo boost, manually put vcore to1.24 (recommended after disabling turbo boost in the bios as a default value) and BCLK to 133 manually because in auto is set to 134.9.

So.. from all these 3 settings, what could make a PC more inestable?
Turbo boost off, lowered vcore or the bclk?

Is hard to me to explain because Im not english sorry

So what I want is just run my pc with default values (but not auto because those are higher than default) but without random fail boots when I restart my pc.

Im trying now vcore 1.200v, dram 1.500 (was set to 1.540 by default -.-") and BCLK 133 with Turbo Boost enabled. I get a bit higher temps, but if that dont make me fail on POST randomly is ok.

Im just lost finding what those options could affect more to those fails on POST/Boot

BTW: I posted some pics in the main post if you can take a look and say to me if something is wrong...

PS: I build by myself and notice that all work fine with auto values (I think, still too new, less than a week lol) but those high temps, weird voltages values in some things and the noise... make me think to no use the auto
Edited by kitsune0 - 3/25/11 at 11:07pm
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post #6 of 19
The noise that you are hearing is probably Electromagnetic Interference (EMI) inside your case. There isn't much you can do about it unfortunately. I had the same sound in my speaker from my front panel audio. However I once I switched the input directly to the motherboard it was fixed.

As for your other problems, disable speedstep and turboboost
Edited by cordawg92 - 3/25/11 at 11:10pm
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post #7 of 19
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Quote:
Originally Posted by cordawg92 View Post
The noise that you are hearing is Electromagnetic Interference (EMI) inside your case. There isn't much you can do about it unfortunately.
Yeah. But I read in a lot of places that it happen when the voltage isnt the most accurate or correct. And it sound even if I disconnect the speakers from the PC and move more far than 1 meter from the PC lol...

So I read that are 2 solutions. Ferrite for the cables or write the correct voltage manually.

I could buy ferrite rings but the weird voltage values still there plus the high temps. Thats why Im more into the voltage thing. The problem is that I dont know what values could be too much or too less

Where I read about undervolt, they say that if you test with prme95 for some time and dont crash, then all is ok

Quote:
Originally Posted by cordawg92 View Post
I had the same sound in my speaker from my front panel audio. However I once I switched the input directly to the motherboard it was fixed.

As for your other problems, disable speedstep and turboboost
Speedstep? What that means? I know how to deactivate TurboBoost but never saw that option
Edited by kitsune0 - 3/25/11 at 11:17pm
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post #8 of 19
Quote:
Originally Posted by kitsune0 View Post
Yeah. But I read in a lot of places that it happen when the voltage isnt the most accurate or correct. And it sound even if I disconnect the speakers from the PC and move more far than 1 meter from the PC lol...

So I read that are 2 solutions. Ferrite for the cables or write the correct voltage manually.

I could buy ferrite rings but the weird voltage values still there plus the high temps. Thats why Im more into the voltage thing. The problem is that I dont know what values could be too much or too less

Where I read about undervolt, they say that if you test with prme95 for some time and dont crash, then all is ok

Okay, if your speakers are making noise when they aren't plugged in, then I suggest throwing them out. They can't be that good to be going through all this trouble. For your cpu voltage, just keep experimenting with different voltages, there isn't much I can tell you. You can put the voltage under what it was at stock. For example, my i7 is at 1.096 volts at 3.8ghz running stable. Just keep trying and you will eventually find the sweet spot for your chip.


I don't remember if i7s have speedstep/C1E technology or not. Pretty sure they do. Look around in the bios. By the way, don't overclock your cpu with any of that software I see in your screenshots, do it all in the BIOS

EDIT: I just re-read everything you wrote, and honestly I don't really even understand what you are doing. Are you even trying to overclock your cpu? It seems that you don't know much about this and that you are just jumping right in. If I were you I would take more time reading overclocking guides for your CPU to make sure you understand everything that you do. If you are not trying to overclock, then just clear your CMOS and leave your BIOS alone.
Edited by cordawg92 - 3/25/11 at 11:24pm
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post #9 of 19
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Quote:
Originally Posted by cordawg92 View Post
Okay, if your speakers are making noise when they aren't plugged in, then I suggest throwing them out. They can't be that good to be going through all this trouble. For your cpu voltage, just keep experimenting with different voltages, there isn't much I can tell you. You can put the voltage under what it was at stock. For example, my i7 is at 1.096 volts at 3.8ghz running stable. Just keep trying and you will eventually find the sweet spot for your chip.
Yes lol, they make noise even disconnected if arent too far. But dont come from the speakers because in other PC they work fine. And indeed, they are too sensitive to EMI because even when someone turn a light on or off the speakers make a little "click" sound.

But take in account that the noise comes from the chase too and somtimes very high (like a whistle or a teapot lol).

What are the stock vcore for my cpu? trust me I search a lot and even in the intel website isnt that info (it just say 0.800v ~ 1.375v). And should I leave the BCLK at 134.95MHz on auto or is ok tu put it manually to 133? I mean.. is the default value 133 isnt?
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post #10 of 19
Quote:
Originally Posted by kitsune0 View Post
Yes lol, they make noise even disconnected if arent too far. But dont come from the speakers because in other PC they work fine. And indeed, they are too sensitive to EMI because even when someone turn a light on or off the speakers make a little "click" sound.

But take in account that the noise comes from the chase too and somtimes very high (like a whistle or a teapot lol).

What are the stock vcore for my cpu? trust me I search a lot and even in the intel website isnt that info (it just say 0.800v ~ 1.375v). And should I leave the BCLK at 134.95MHz on auto or is ok tu put it manually to 133? I mean.. is the default value 133 isnt?
Okay, forget about the speakers. They sound like they are pieces of crap anyway. You can't fix the noise without going through a lot of trouble.

For your CPU Vcore, the stock is different for every chip (which is why there is only a range listed on the intel site). If you aren't overclocking, I would really recommend just clearing your CMOS to undo anything that you've messed up. If you don't want to clear your cmos, just set the BCLK to 133 or auto, it really doesn't matter. I don't know what your goal is here if you aren't overclocking...
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