Core voltage

:noidea:i do not over clock my machine but i ran intels cpuid and it tells me that my p4 2.6c is running at 2636mz and not at 2600 and with a fsb of 211 not 200
in the bios everything is as it should be except the core voltage which is set at 1.520 ant thats the lowest setting i can get.
my bios version is 1.9.
can someone throw some light on this .
is it safe to leave this as it is

ok a little more info
just updated bios to 1.9
i changed nothing except sata set for hdd and change ddr voltage to 2.7 and agp voltage to 1.6 performance is set to slow other than that i changed nothing
my system
p875 neo-fis2r
infineon ddr 400mz memory 2 times 256 in 1 and 3 slots
msi g4 fx 5600 td 256
audigy player sound card
seagate 120 sata hdd (never had a problem with this hdd set up on intel ich5r)
lite-on dvd reader as master
lite- on 52 cdrw as slave
as to d/o you`ve got me there what is where is it ,as i say i dont oc so what HAVENT i done right

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Core voltage stability on 865PE Neo2 PFS

I've just installed one of the new P-series NEO-2 MOBO's. Nice piece of work, although it seems there is still some work left to be done. Definite problems (although not serious) in Core center (althoug other posts indicate this may be indiginous to core center itself..)
More serious though is a reading of the processor core voltage.
I'm using a Celery 2.6, OC'd to 3.25G, FSB 125. Had to raise core voltage to 1.6V to get there, lower voltage led to crashes as low as FSB 104...
Recently, I looked at a scan of the core voltage (provided by Speedfan):
The problem lies in the fact that during disk access and/or high processor load, the core voltage drops as much as 90 mV, bringing it back to its default setting (spikes in graph, longer drop was writing DVD, CPU benchmark has similar result).
If it does this at 1.5V, I can understand the crashes.
I get the impression this board could do MUCH better with more stable voltage regulation.
Anyone seeing similar behaviour in other Neo2-boards? Am I missing a setting?(core-cell may be intervening) It's hard to imagine the PSU can't hack it.. 12V level is rock solid.
System: MSI 865PE Neo2 PFS, Celeron 2.6G @ 3.25G (125 FSB)
1x corsair 3200 512MB @ 333
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PSU: HEC 350 VD-PT (3.3V@28A, 5V@33A, 12V@15A)

I'm not worrying. Just a bit surprised we all make a bug fuzz about overclocking, increasing core voltage by 25 mV at a time, and suddenly ignoring it all and "accepting" 70 mV drops if we need processing power...
If the voltage regulator would be more robust, it would be able to maintain the Vcore to (much?) higher power ratings.
This board drops by roughly 70 mV, constituting 3 notches on the voltage setting tab.
I went up to 1.6V, and what I actually get is 1.52.....
To have 1.6 available under all conditions, I'd need to set to 1.7 (yes, I've tried), which is over the top for "normal" overclocking (not to mention considerably higher temperatures).
Anyway, I'd like to know what other boards are doing regarding Vcore stability. Anyone out there with additional data?
Maybe a new target for modifications? (if it's worth it...)

MSI KT3V low maximum core voltage

Hey guys
I'm very angry,because my kt3v have max. core voltage at 1,7V.Where i can find unofficial or beta bios for higer voltages? 1,7V is too low for good overclocking. I use at xp 1700+ (t-bred) and i have stable only 171 x 11.5.I heard that this cpu can run at higer speeds than 1974 mhz.
Where i can find any solution for this voltage?

I had the same problem. Not enough voltage to get my 1700+ past 1907 without stability issues. I used a defogger kit and closed all the L11 bridges on the processor which basically set the default voltage for the CPU at 1.85. Now when I go in to BIOS, the voltage is already set to 1.85, which I think is the max on most newer MSI boards. I never found a beta BIOS anywhere that got around that +/- .1 volt thing. There are also some guides out there about modifying the processor socket with small wires to jumper different pins together to alter the Vcore, but I didn't want to risk putting the wires in the wrong holes...heh. I only had to close 2 L11 bridges on my processor to get the default Vcore to 1.85 and they weren't that close together so it only took about 5 minutes to do it and it works like a champ. Good luck!

I7 920 Core Voltage fluxing issue? yae or nae

Well after reading up on useful info on the forum and grabbing some nifty item's I tried CPU-Z and notices my Core Voltage fluxes from 1.080 v ~ 1.112~1.232 off and on ... is this normal or some thing I need to worry about?
also NB Frequency @ 2812.9~28214.4 Mhz , Dram Freq - 703.2~703.5 Mhz
I'll screen shoot if you like but info the same
Thanks for your time and help
Mrb

The fluctuations in CPU-Z are not all that uncommon. Many times, it is caused by the action of the power saving features in the system.

Z97 G45 i7 4790K Core Voltage

hey,
i just got my new z97 g45. is it possible to set the core voltage to a fixed value? im using a dark rock advanced c1 and my core temps are in idle mode around 40 °C. seems kinda high to me so id try to lower the cpu core voltage. (i got 2 sysfans and the temperature in the case are about 25 to 30 °C.)
if its possible where and how can i change that?
thanks in advance.

70 °C with aftermarket cooler? Either you got bad CPU (with bad thermal solution between the chip and lid itself) or the cooler is completely screwed..
1.25V is quite a lot. For my i5 4670 on 3.6GHz I use fixed 1.050V and it's all good and pretty cool, though it also was getting around 1.15 (or above, can't remember) on default settings.
So what you can do is set 3.8GHz fixed on your CPU, run Intel Burn Test together with CPU-Z and see the max V you get then. And for example if you get around 1.15V, try to use 1.08V. If all good (Intel Burn Test it then), try even lower 1.07V until you reach the point where it will BSOD (I believe) or not boot properly.
But getting the right cooler is the most important and you shouldn't be hitting these temps with aftermarket one.

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trying to overclock 2000+ prossesor have gotten the system to boot at 1.89ghz then crashes loading programs. i have the core voltage set at 1.775(i think).what is the maximum safe voltage that i can push this processor to without meltdown? have thermalTake volcano 9+ running at maximum speed(what a brick) plus 11 case fans. thanks for any help in advance ?(

hi,
AMD has the datasheets for Athlon Model 6, 8, 10 available publicly from amd.com. You can download and inside should have the maximum voltage stated.

Z77a-GD80 core voltage won't increase

I can't seem to get my core voltage past 1.272. I recently updated my bios and my overclock has become unstable and after checking Cpu-z I believe this is the reason. Any ideas?
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Live Update is the worst method to use. The ME FW probably didn't get properly installed. Yes, after a flash, the newest ME driver should be re-installed. This board is already EOL and listed in the archive section of MSI's Websites. Here is a thread that might be of help;
https://forum-en.msi.com/index.php?topic=180006.0
Added: Here is the last official Beta we will probably ever see;
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694D Pro ver 1.0
BIOS - 1.9
2xPIII 733 CPUID Revision 0683h.
My core voltage is not correct on cpu1.cpu1 is 2.0V cpu2 1.65.
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some idea

I use Motherboard monitor to identify core voltage, and cpu0 is 2.0V, cpu1 1.65V.
what is the last version of BIOS for this Motherboard 694D Pro-A.
can I put version 3.7 of BIOS or this is not for this Motherboard.

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Sup guys,
I installed the MSI Afterburner - 2.2.0 Beta 3, i read the manual and some sites etc. one thing i do not understand and that is how this version's Core Voltage works. As i've seen on youtube and various forums that the Core Voltage is displayed as the volts are set to exp: 0.0950V, but mine is displayed as a "+0". It never displays the Volts at which you are currently at, like the Core Clock or Memory clock etc. Any ideas?

I was wondering what that switch was for
So i switched to "Performance Mode" and kind of almost freaked out when i booted back up, because my pc took a while to start up "longer than normal", when it entered Windows it changed to 800x600 Res and said my Hardware was not supported, but a min or 2 after that it said "New Device Installed and ready for use" and asked to restart, so i restarted and....... kapish
Seems we have a winner:
It does run a bit hotter than when on silent mode, but will sort that out.
Thanks for the effort.
Ps. I Assume that is my actual "Volt" measurement

Core 2 Duo e7300 core voltage

As reported by CPUz, my core voltage is 1.184V.
However, I have seen in some reviews that e7300 core voltage is 1.168V.
Specs: MSI P7NGM-Digital motherboard
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So whts the default core voltage for e7300 ?

There can be slight differences between different CPU exemplars, that is why Intel cannot tell you the precise default VCore for its different processors and if Intel cannot tell you that, nobody else can.
Therefore:
Quote
As reported by CPUz, my core voltage is 1.184V.
Quote
However, I have seen in some reviews that e7300 core voltage is 1.168V.
A difference of 0.012V is a rather insignificant difference. Don't worry about it.

KT4V overclocking - Core voltage

Hi,
I have a TBred Athlon XP 1700+ (DLT3C 0308RPMW) and KT4V mobo. The board can supply 1.85V core voltage. But my CPUs default is 1.5V. My problem: Vcore settings in the BIOS are limited up to 1.6V only. The CPU can safely handle much more in fact.
I don't want to solder anything on the mobo or fiddle on bridges on my CPU (HSF so hard to take out) so Ive found an idea. I am reverse engineering the CMOS contents to find where the Core Voltage is stored. I found that locations 63 and 85 on the CMOS control Vcore. I could obtain 1.625V by manually altering the contents. But when I try one higher setting (that should be 1.65V), the mobo just doest not post at all. So probably I am missing something on the CMOS contents.
Any suggestions would help. Thanks.
KT4V BIOS version: 1.8

BOGEYMAN1 CGA, you should be talking about L11 unlocking. That is very delicate stuff for me. I can barely see the bridge, I am sure I can't unlock it successfully ;(
I am working on the dump program. But it does not run on Win2K and XP (it accesses the ports directly). So I'll have to write a fresh one for the command prompt (again the old friend Borland Pascal compiler )
Up to now I obtained the following info:
CMOS memory locations 63 and 85 do control the core voltage, that is for sure. To increase Vcore by 0.025V, increment the contents of loc. 63 and 85 by one.
But there are other parameters affecting loc.63 too. It is pretty complicated. The FSB, DDR voltage etc. Nearly all the parameters seem to have something on location 63 ?( So in the final program probably I will have to make all the adjustments available, like the BIOS, or it won't work. We'll see.
Now, can you tell me how the put the dump program on the internet? Some free web server or so?

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Hey everyone, I'm new to the boards and have just one question: Where is the optional to manually set the core voltage on this motherboard? I submitted a ticket asking the same, and support said I'd find it in the OC tab of the newest BIOS (4.1), but I'm still unable to locate it after updating it. Either it's not there, or I'm somehow missing it.
Any help would be much appreciated, and feel free to chastise me if the option is right in front of my face
As it stands my 2500k is at 4.0ghz but cpuz shows the volts at 1.336

After looking in the downloadable pdf manual, there is no adjustment available for the CPU voltage. It is not an available feature on your series of mainboard that I can see. To confirm this, you might contact MSI Tech Support here; http://support.msi.com

Afterburner, no set core voltage second card on crossfire.

Hello,
I do not have a setting available on the " core voltage " on my second graphics card in afterburner .
I just added a 280X R9 besides my HD7970 .
ON the first card everything is available but not on the second .
Do you have an idea of setting ?
Sorry i have a print screen but i can't post external link.....
AB 4.1.0
Sorry for my English I use google translator from France ^^

Please don't bump your issue: >>Please read and comply with the Forum Rules.<<. Bump post has been removed.
What exact MSI card models are in question?

Memory core voltage on a ti4800se

when i run turbo experience i get a message:
unusual memory voltage: 2.52.... is it realy unusual. what can i do?

SillySider03,
Don't have that issue any windows utility shows total vcore as core voltage + (VId % x core Voltage)
Not often i quote core centre as being correct but on mine CPU voltage is shown exactly as bios. Vcore @top left shows total vcore
whilst opening the left wing vcore shows the core voltage.
Agreed thereis always an issue with the accuracy of the sensor readings.

MSI Afterburner Core Voltage = huh?

So I just installed my GTX 580 Lightning and LOVE IT. Afterburner is also very nice.
What I can't figure out is the core voltage is measured like +1, +10, +100 etc but that really doesn't help me seeing what is safe for my card and where I should even start increasing it. I am used to 0.9 or 1.2v measurements.
Help!

Quote from: Henry on 27-September-11, 06:34:22
The only reasons you would need to increase the voltage would be: 1 - if you are going to OC more than what it came with and it would need higher voltage for it to run stable. 2 - if you are experiencing problems that would require a higher voltage for it to run stable. If all is OK as is then leave it alone.
Hey Henry,
Sorry I didn't specify. I came from overclocking ASUS GTX 570 and increasing the voltage quite a bit. But I was using ASUS SmartDoctor that showed the actual voltage.
Since MSI Afterburner only has a +1 through plus +200 on the core voltage modifier, I didn't quite understand what that was.
I was just wondering what the average GTX 580 Lightning overclocker was using for their voltage settings on a high OC. I wanted to see how far I could push mine
I got my GTX 570 to 930 core and 4500 memory which was insane....

Core voltage

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