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Is my VCore too high?

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I currently have my VCore at 1.425V (without VDroop) with my 4.40GHz OC on my i7-980 (not X). It's the minimum I can set it to for 24h Prime95 stability. Because I know that Intel recommends to not exceed 1.4V on the i7-980X but I don't have the extreme version and I've read that for the regular 900 series i7's that 1.5 should be the max. I just want to make sure that I don't fry my processor with my current VCore setting.
 

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ZOMG its gonna melt!!!!!!!

nah, just kidding man. While there will me more damage done over the long haul than if you used a lower voltage, if the temperatures at 4.4GHz are managed, voltage is really only at the limit of how big your grapes are;)
 
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It is fine but if you can get the Vcore down then do that, But if you down the Vcore then your System Stability will also down.

I suggest you to contact hat, he is a master overclocker.

Remember it is
hat
 
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I would say with adequate cooling that Vcore is OK. I have a p4 still sucking 1.55v + :)

Maybe if you play around with the BIOS you can get it more stable with less volts?
 
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P4 at 1.55v if i get my P4 at that it is going to fry for sure then i will eat it in my dinner :D
 
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keep in mind that P4 is build on a larger process... larger processes are more resistant to higher voltage than smaller manufacturing processes
 

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It is fine but if you can get the Vcore down then do that, But if you down the Vcore then your System Stability will also down.

I suggest you to contact hat, he is a master overclocker.

Remember it is
hat

not nesessarily. Most of the time people over shoot the voltage they need for specific clock, and higher voltages can make a system just as unstable as to low of voltages. if one is to lower the voltage a bit while keeping the same stability it cuts back on temperatures, power consumptions, and can help preserve the life of the chip a bit more.
 

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P4 at 1.55v if i get my P4 at that it is going to fry for sure then i will eat it in my dinner :D

A P4 can handle more then 1.55v. Its ran on a 90-120nm fabrication process and those can handle a lot more voltage then what is currently out, and I mean A LOT MORE! I remember reading about people putting 2.0v through those things back in the day.
 
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The temps I get on 1.425 VCore on my Corsair H80 is approx 25 degrees on idle and never goes past 65 degrees while playing BF3. The only time temperatures reached 83 degrees on cores 2 and 9 was when I ran Prime95 for 24 hours, which in reality, would never push my processor that hard.
 

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It is fine, especially on water, just keep temperatures in check.
 

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I really couldn't tell you. I just got my i7 920 running last week and I haven't gone nuts with it, so I don't have much hands-on knowledge about overclocking with the x58 platform. Based on what I've read I would have to say 1.425v is high for that chip, but I'm not sure of what it takes to run at that speed. I have a friend with a 980x and if I recall correctly he runs 4.4GHz at 1.35v, but I have no idea what his stability standards are.

You may be able to considerably lower your voltage down from 1.425 by backing off the clock. Try backing off 100MHz at a time and see what you can do with the voltage. It might be something else that needs voltage and you're indirectly solving the problem by overloading vcore and having voltage bleed into something else. It looks like you're actually underclocking 2000MHz memory, so I wouldn't bring the memory sticks' stability into question. You are running 6 sticks, where 3 would potentially give you better oc ability. I'd start looking at what your QPI link and Uncore (NB freq. fiend under memory in cpu-z) are running at. If they're excessively high, you may need to add voltage somewhere else...

Binge said:
Common voltages (32nm Westmere)
VCore - directly related to the CPU frequency. Chances are if the cpu frequency doesn't change then this does not need to be changed. "Safe" for overclocking voltages range from 0.9-1.4V (intel spec).
QPI voltage/CPU vtt- Any change in CPU frequency for 32nm chips. If you change the BCLK, the memory frequency will change. This voltage also affects the uncore stability indirectly. "Safe" for overclocking voltages range from 1.1-1.4V (intel spec). ***CAUTION*** Raising the vtt beyond 1.35V has shown to damage 32nm based chips. This observation was made by a number of overclockers, and the information is to be used as a measure of caution. If you're approaching the intel spec MAX for this voltage then you are getting dangerously close to causing damage. Approaching the maximum or going beyond would not be advised unless someone is benching with sub-zero cooling for some time under 24 hours.
IOH Core Voltage- Different than IOH PLL, and more important! This observation will be explained later. The catcher.
ICH Core Voltage- Not important.
Core pll- Signal strength of the CPU. At higher core voltages/frequencies the Core pll can be reduced below spec to enhance stability.
IOH pll- Think of this like the catcher's pitching strength. The catcher (IOH) needs to catch, not pitch so much.
QPI pll- The pitcher's pitch! When you are reaching (within .5GHz) the physical limit of the QPI clock for your chip this is usually a culprit for stability. At a max of 1.5V (DON'T GO HIGHER) some stubborn chips and boards can reach high BCLK OCs. The IOH Core Voltage needs to be = to the QPI pll voltage for best results. The two voltages should be the same at stock 1.1V or something like that. If they are not the same then do not change them because your bios probably has them named differently.
CPU pll- This voltage is overlooked for 45nm chips mostly because it is not an issue when overclocking. For 32nm chips the maximum voltage is 2V, and slight increases above the automatic setting of 1.8V may increase stability.

I don't really know what's what myself, as I said before, I haven't reached into any extremities yet. Your best bet, if you want to keep your 4.4GHz speed, would be to pick at that info I quoted from the x58 guide we have here and see if maybe raising voltage on something related to your QPI link, uncore, IOH chip or one of those other items (which are probably of less importance than what I listed here if I know/guessed right, since you're not going super extreme) has any effect on helping you lower your vcore. Quickiest, easiest, safest and most probable course of action here is to just knock done your oc a bit, 100mhz at a time and see if that helps. Maybe you just got a low clocker, sometimes it takes huge amount of voltage to break through those barriers.
 
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I really couldn't tell you. I just got my i7 920 running last week and I haven't gone nuts with it, so I don't have much hands-on knowledge about overclocking with the x58 platform. Based on what I've read I would have to say 1.425v is high for that chip, but I'm not sure of what it takes to run at that speed. I have a friend with a 980x and if I recall correctly he runs 4.4GHz at 1.35v, but I have no idea what his stability standards are.

You may be able to considerably lower your voltage down from 1.425 by backing off the clock. Try backing off 100MHz at a time and see what you can do with the voltage. It might be something else that needs voltage and you're indirectly solving the problem by overloading vcore and having voltage bleed into something else. It looks like you're actually underclocking 2000MHz memory, so I wouldn't bring the memory sticks' stability into question. You are running 6 sticks, where 3 would potentially give you better oc ability. I'd start looking at what your QPI link and Uncore (NB freq. fiend under memory in cpu-z) are running at. If they're excessively high, you may need to add voltage somewhere else...



I don't really know what's what myself, as I said before, I haven't reached into any extremities yet. Your best bet, if you want to keep your 4.4GHz speed, would be to pick at that info I quoted from the x58 guide we have here and see if maybe raising voltage on something related to your QPI link, uncore, IOH chip or one of those other items (which are probably of less importance than what I listed here if I know/guessed right, since you're not going super extreme) has any effect on helping you lower your vcore. Quickiest, easiest, safest and most probable course of action here is to just knock done your oc a bit, 100mhz at a time and see if that helps. Maybe you just got a low clocker, sometimes it takes huge amount of voltage to break through those barriers.

These are my current voltages in my BIOS, everything else is on Auto:

CPU VCore [1.42500V]
CPU VTT Voltage [+250mV] [default value 1.1V (+0mV)]
CPU PLL VCore [1.875V]
IOH PLL VCore [1.875V]
QPI PLL VCore [1.350V]
DIMM Voltage [1.660V]
 

hat

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I dunno, don't know what voltages there mean what and what range of performance you should be getting out of them.
 

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1.425 is a bit excessive Id be more worried about the vtt voltage vtt must be within 0.50 of the core voltage a i7 should not need more then 1.38v ... ever I don't recommend running more then 1.36v people say thats fine and it is but when the chip degrades in two years you will wish you had keept it a little lower
 
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Well i keep my volts at 1.41
 

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Well i keep my volts at 1.41

seems a little excessive.

Stock voltage of the P4 631 is 1.2V-1.3375V. you are at 1.41 and only OC'd 200mhz?? try lowering your voltage and see if your rig still remains stable

According to most forums, the 631 should be capable at doing 4Ghz on stock volts or just a small increase. 5Ghz@1.55v and 8Ghz@ something like 1.9v - obviously@1.9Ghz, you would need LN2 to cool it as the heat would just totally surpass what conventional watercooling is capable of.

 
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seems a little excessive.

Stock voltage of the P4 631 is 1.2V-1.3375V. you are at 1.41 and only OC'd 200mhz?? try lowering your voltage and see if your rig still remains stable

According to most forums, the 631 should be capable at doing 4Ghz on stock volts or just a small increase. 5Ghz@1.55v and 8Ghz@ something like 1.9v - obviously@1.9Ghz, you would need LN2 to cool it as the heat would just totally surpass what conventional watercooling is capable of.

http://valid.canardpc.com/cache/screenshot/1794408.png

I can get my P4 at 8.7 GHz with 1.98v but it get hot over 100C and shutdowns automaticaly because of my stock cooler i cannot get it more 3.2 Ghz, and there is another problem i used a X series mobo to do that but it was fryed so right now i have a 945G mobo which do not supports OC at all, I don't want to spend any more on this because i will be buying i5 in a few months
 

Outback Bronze

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Topic: I think youll be fine. Ive got a mate thats running 1.6v on his 920 for 18 months now.
 
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I was actually able to lower my VCore to 1.3875V, keep my other voltages the same and ran 24h Prime95 stable, I'll try lowering it a notch sometime this weekend. :)
 

hat

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How did that work? Did you lower any clockspeeds or anything?
 
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It is fine but if you can get the Vcore down then do that, But if you down the Vcore then your System Stability will also down.

I suggest you to contact hat, he is a master overclocker.

Remember it is
hat

As a Pentium owner you are in a perfect position to comment on a i980. Please limit your self to what you know and stop doing double post. You are a pxxn in this forum. You do not need to reply to all post, I for one would rather see that stay within your 13 year limit and keep quiet until you are asked.

My own position on +1.40 on this 32 nm is daring for long time use but best off luck.
 

OneMoar

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As a Pentium owner you are in a perfect position to comment on a i980. Please limit your self to what you know and stop doing double post. You are a pxxn in this forum. You do not need to reply to all post, I for one would rather see that stay within your 13 year limit and keep quiet until you are asked.

My own position on +1.40 on this 32 nm is daring for long time use but best off luck.

its not his fault hes from india there all trained to think there the lastest in tech support but they really don't know anything
and I highly doubt he 's gotten a p4 to any-ware near 8GHz guys a idiot you need Ln2 just to post at beyond 4GHz with pentium4's
 
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