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1.5v max intel I7 2600k

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January 13, 2011 4:50:46 PM

hi al :hello: 

I was searching around to find the max volt for the I7 2600k.
and when i looked at the intel documents and found this:
Table 7-5.
parameter: VID range
min: 0.2500
typ: -
max: 1.5200 <---wtf :ouch: 
unit: V
note1: 2
this is a document about the new I7 2600k from the intel web page

i found the same thing for the I7 9xx and it state:
Table 7-5.
parameter: VID range
min: 0.8
typ: -
max: 1.375 <- the max save volt we all know :) 
unit: V
note1: 2

so is 1.5 realy save?
becose many poeple say the smaller the size (32nm for SB) the less volt it can take.
while others say when the stepping changes the volt go,s with it :heink: 

so what do you guys think is it: save or 100% death ;) 

More about : max intel 2600k

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January 13, 2011 5:00:31 PM

AWESOME post, LMAO, i'm geekin out with the "<---wtf" comment, anyway, i was looking into this as well, i will certainly be monitoring this post and will update if i find anything...
January 13, 2011 5:10:21 PM

jonpaul37 said:
AWESOME post, LMAO, i'm geekin out with the "<---wtf" comment, anyway, i was looking into this as well, i will certainly be monitoring this post and will update if i find anything...


THX ;) 

hope we can get some support for this

i'm geekin out with the "<---wtf" comment, anyway :sarcastic:  :sarcastic:  :sarcastic: 
:hello: 
Related resources
a b à CPUs
a b K Overclocking
January 13, 2011 6:20:44 PM

Found this in another forum, take it for what it's worth, i will be sticking to this until i hear otherwise:

just an FYI. Dont push these chips yet as i read on other forums a few people burned theirs.

Please for the love of god..
This is from gibbo on OC forums for UK

PLEASE try to remain within the specified specs he lists if you want your CPU to last currently until We get some proof/ real numbers released. HE spoke with intel along with another person and they came up with these numbers based on their conversations





GIBBO!__ !_ !__ _! VVVVVVVVVVVV

Sandybridge maximum safe voltages

Core Voltage - Not recommended too exceed 1.38v, doing so could kill the CPU, we therefor recommend a range of 1.325-1.350v if overclocking.
Memory Voltage - Intel recommend 1.50v plus/minus 5% which means upto 1.58v is the safe recommended limit. In our testing we have found 1.65v has caused no issues.
BCLK Base Clock - This is strictly a NO, anyone using base clock overclocking could/will cause damange to CPU/Mainboard. (Set manually to 100)
PLL Voltage - Do not exceed 1.9v!!



Processor - Basically we recommend customers not to exceed 1.35v to play it safe, all our bundles are set at 1.3250v or lower, any competitors offering bundles above 4.6GHz you should be enquiring as to what voltage they are using as we believe anything over 1.38v will limit CPU lifespan and anything over 1.42v will likely kill the CPU or severely limit its lifespan.

Memory - Intel recommend 1.50v plus/minus 5% which means 1.60v is the ideal safe maximum, but we have found in our testing all 1.65v memory is fine. We have also found most new 1.65v like Corsair XMS3 will run at its rated timings with just 1.50-1.55v which is well within Intel specifications. So people upgrading to Sandybridge you can still use your old DDR3, but we do recommend you run it at 1.60v or less. We are shipping most of our bundles which feature Corsair XMS at 1.50v-1.55v at rated timings. We've also discussed with Asus and MSI regarding voltages for memory and they also confirm in their testing 1.65v caused no issues with reliability.

Base Clock - To put it simple if you value the life of your components, do not overclock using base clock!

PLL Voltage - Again do not exceed 1.9v!


These are just guidelines we recommend you follow, if you want to push more voltage through your CPU's then just be aware they could die on you. Your warranty is un-affected and we will honor any CPU's that die, we just won't ask questions as to how you killed them.

Not all CPU's are as fragile as others, we have experimented upto 1.50v Vcore and 1.70v memory and had zero issues with reliability, so it seems some of fine when pushing hard.
January 13, 2011 6:46:09 PM

jonpaul37 said:
Found this in another forum, take it for what it's worth, i will be sticking to this until i hear otherwise:

just an FYI. Dont push these chips yet as i read on other forums a few people burned theirs.

Please for the love of god..
This is from gibbo on OC forums for UK

PLEASE try to remain within the specified specs he lists if you want your CPU to last currently until We get some proof/ real numbers released. HE spoke with intel along with another person and they came up with these numbers based on their conversations





GIBBO!__ !_ !__ _! VVVVVVVVVVVV

Sandybridge maximum safe voltages

Core Voltage - Not recommended too exceed 1.38v, doing so could kill the CPU, we therefor recommend a range of 1.325-1.350v if overclocking.
Memory Voltage - Intel recommend 1.50v plus/minus 5% which means upto 1.58v is the safe recommended limit. In our testing we have found 1.65v has caused no issues.
BCLK Base Clock - This is strictly a NO, anyone using base clock overclocking could/will cause damange to CPU/Mainboard. (Set manually to 100)
PLL Voltage - Do not exceed 1.9v!!



Processor - Basically we recommend customers not to exceed 1.35v to play it safe, all our bundles are set at 1.3250v or lower, any competitors offering bundles above 4.6GHz you should be enquiring as to what voltage they are using as we believe anything over 1.38v will limit CPU lifespan and anything over 1.42v will likely kill the CPU or severely limit its lifespan.

Memory - Intel recommend 1.50v plus/minus 5% which means 1.60v is the ideal safe maximum, but we have found in our testing all 1.65v memory is fine. We have also found most new 1.65v like Corsair XMS3 will run at its rated timings with just 1.50-1.55v which is well within Intel specifications. So people upgrading to Sandybridge you can still use your old DDR3, but we do recommend you run it at 1.60v or less. We are shipping most of our bundles which feature Corsair XMS at 1.50v-1.55v at rated timings. We've also discussed with Asus and MSI regarding voltages for memory and they also confirm in their testing 1.65v caused no issues with reliability.

Base Clock - To put it simple if you value the life of your components, do not overclock using base clock!

PLL Voltage - Again do not exceed 1.9v!


These are just guidelines we recommend you follow, if you want to push more voltage through your CPU's then just be aware they could die on you. Your warranty is un-affected and we will honor any CPU's that die, we just won't ask questions as to how you killed them.

Not all CPU's are as fragile as others, we have experimented upto 1.50v Vcore and 1.70v memory and had zero issues with reliability, so it seems some of fine when pushing hard.



eh did you even read it. Its from the intel site
and you say:
PLEASE try to remain within the specified specs he lists if you want your CPU to last currently until We get some proof/ real numbers released. HE spoke with intel along with another person and they came up with these numbers based on their conversations

but these are the specs and are real number from intel

January 13, 2011 11:08:06 PM

jonpaul37 said:
Found this in another forum, take it for what it's worth, i will be sticking to this until i hear otherwise:

just an FYI. Dont push these chips yet as i read on other forums a few people burned theirs.

Please for the love of god..
This is from gibbo on OC forums for UK

PLEASE try to remain within the specified specs he lists if you want your CPU to last currently until We get some proof/ real numbers released. HE spoke with intel along with another person and they came up with these numbers based on their conversations





GIBBO!__ !_ !__ _! VVVVVVVVVVVV

Sandybridge maximum safe voltages

Core Voltage - Not recommended too exceed 1.38v, doing so could kill the CPU, we therefor recommend a range of 1.325-1.350v if overclocking.
Memory Voltage - Intel recommend 1.50v plus/minus 5% which means upto 1.58v is the safe recommended limit. In our testing we have found 1.65v has caused no issues.
BCLK Base Clock - This is strictly a NO, anyone using base clock overclocking could/will cause damange to CPU/Mainboard. (Set manually to 100)
PLL Voltage - Do not exceed 1.9v!!



Processor - Basically we recommend customers not to exceed 1.35v to play it safe, all our bundles are set at 1.3250v or lower, any competitors offering bundles above 4.6GHz you should be enquiring as to what voltage they are using as we believe anything over 1.38v will limit CPU lifespan and anything over 1.42v will likely kill the CPU or severely limit its lifespan.

Memory - Intel recommend 1.50v plus/minus 5% which means 1.60v is the ideal safe maximum, but we have found in our testing all 1.65v memory is fine. We have also found most new 1.65v like Corsair XMS3 will run at its rated timings with just 1.50-1.55v which is well within Intel specifications. So people upgrading to Sandybridge you can still use your old DDR3, but we do recommend you run it at 1.60v or less. We are shipping most of our bundles which feature Corsair XMS at 1.50v-1.55v at rated timings. We've also discussed with Asus and MSI regarding voltages for memory and they also confirm in their testing 1.65v caused no issues with reliability.

Base Clock - To put it simple if you value the life of your components, do not overclock using base clock!

PLL Voltage - Again do not exceed 1.9v!


These are just guidelines we recommend you follow, if you want to push more voltage through your CPU's then just be aware they could die on you. Your warranty is un-affected and we will honor any CPU's that die, we just won't ask questions as to how you killed them.

Not all CPU's are as fragile as others, we have experimented upto 1.50v Vcore and 1.70v memory and had zero issues with reliability, so it seems some of fine when pushing hard.


^^ +1
January 13, 2011 11:10:22 PM

@ killer pc

DON'T take it above 1.35 yet, until we know more.
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January 14, 2011 11:35:47 AM

Exactly, the highest i will go is 1.37 depending on the vid when i build this rig after work tonight...
January 14, 2011 4:48:06 PM

Good luck with it JP!!!

Let me know what batch ## you get and what your clocks look like!

I have batch L041B564 (2500k).

I could boot @ 4.5ghz w/ 1.35 vcore, but didn't stress it. Knocked it back to 4.0 @ 1.2 until we know more.
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January 14, 2011 7:52:13 PM

Will do, should arrive on Monday i hope.
January 14, 2011 9:05:24 PM

i just received my 2600k, gigabyte p67a-ud7 and my corsair dominator gt 2000cl8 + fan :D 
next week my watercooling wil arrive and the I,ll upload some oc,s
batch#: L042B074
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a c 145 K Overclocking
January 15, 2011 12:03:21 AM

Guru 3D got to 4.6 Ghz in one minute of effort .... on a stock cooler (46 times 100 MHz baseclock frequency):

http://www.guru3d.com/article/asus-sabertooth-p67-tuf-r...

Quote:
The generic overclock procedure is as follows:

1. Leave baseclock for what it is right now
2. If optional in the BIOS, increase the TDP limit of your processor to 200 Watts
3. With a 2600K set your base multiplier at 34
4. And now set the per core multiplier at a maximum of your liking, we applied an MP of 46 on all four cores
5. Increase CPU voltage, though setting AUTO might work fine, we applied 1.35V
6. Make sure your processor is properly cooled (we used the stock Intel cooler and forced the fan to 70% RPM)
7. Save and Exit BIOS / UEFI


This guy running stable at 107.5 BCLK @ 5.2 GHz

http://www.xtremesystems.org/forums/showthread.php?t=26...
January 15, 2011 12:13:13 AM

Yeah, i've seen that. I want to get some higher #'s but don't want to do anything until we know more about ocing SB in general.
January 15, 2011 8:21:03 PM

I did a little testing with the stock cooler. and I can reach 4.2ghz @ 1.28v max temp 76c :) 
when my watercooling arrive i wil puch it to 5ghz.......or more :D 
January 15, 2011 9:31:15 PM

76c :o  be currrfulll :) 
January 15, 2011 10:17:53 PM

willmalcom said:
76c :o  be currrfulll :) 


ye i know but it wil underclock when it is to hot ;) 
January 16, 2011 4:28:23 AM

I think that fix is still somewhat broken, but idk for sure yet.
January 18, 2011 4:06:34 PM

i used the new bios on my ud7 and i was able 2 hit 5ghz with every thing on auto !!!!
vcore whas only 1.39v!!! :D 
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a b K Overclocking
January 19, 2011 1:23:15 AM

willmalcom said:
Good luck with it JP!!!

Let me know what batch ## you get and what your clocks look like!

I have batch L041B564 (2500k).

I could boot @ 4.5ghz w/ 1.35 vcore, but didn't stress it. Knocked it back to 4.0 @ 1.2 until we know more.



Have batch L040B705 (2600K)
Using ASUS P8P67 Pro
CM Hyper 212

Clocks to come

UPDATE*

Got 4.6 GHz straight out of the gates with 1.35 vcore, 100.0 BCLK, 46 multi on all 4 cores for turbo. Stress tested with the above setup and temps did not go higher than 59c. Tested for about 45 minutes, high temp was 59c on 3 cores, 58 on the first, average load temp was 55c for all 4 cores.

I am WTF Thrilled!
January 19, 2011 2:33:34 PM

Nice looks good!

I guess I probably didn't need my Noctua, because my temps are a/b the same :p 
January 28, 2011 6:05:08 PM

I have not spent much time tweaking my new Sandy Bridge, but here are my initial results.

CPU: Core i7-2600k (Batch L040B705)
Cooler: Noctua DH-14
Motherboard: AsRock P67 Extreme6
BIOS: 1.1, 1.2, L1.33, 1.4
RAM = 2x 4GB + 2x 2GB @ 1600 Mhz @ 1.65v, 7-8-7-20-1T

Default BIOS/Settings (HT Enabled)

CPU idles at 16 x 100 BCLK = 1600 Mhz at about .88 volts
Stress Test all cores = 35 x 100 BCLK = 3500 Mhz at 1.1 volts
Temperatures idle / stress : 28-34 / 34-42

Using the Built in BIOS overclock preset to Turbo 4.8 Ghz and leaving much everything on Auto or at defaults.

CPU idles at 16 x 100 BCLK = 1600 Mhz at about 1.1-1.2 volts
Stress Test all cores = 48 x 100 BCLK = 4800 Mhz at 1.48 volts
Temperatures idle / stress: 38-44 / 68-72

The Load Line Calibration was set to auto and was at Level 5 (dropping the vcore the most). If I set the LLC to Level 1, the full load vcore would be 1.48-1.55 volts.

Not bad for just using the default auto overclock. However, I did run into a problem. These settings lead to a stable system when using the stock 1.2 and 1.3 BIOSs'. However, when I flashed to beta L1.33 and release 1.4, the system will randomly lock up, even when not being stressed. Activities could be using a single core for watching a video or browsing web sites, ect. No blue screen, just complete freeze and response from keyboard, mouse, network, ect. What concerns me is that even going back to lower speeds/voltages still caused this problem to randomly occur with the newer BIOSs but not with the older BIOSs.

I will test it more manually when I have more time.
!