PizzaMan

Seen a lot of confusion about maximum voltages for Intel processors. Most seem to think that the VID is the max. NO, the VID range is only the range in which you will factory ships CPUs.

Example. The max voltage for an e8400 is 1.45v not the 1.36v, which is only the highest VID they will ship a CPU.

I only polled the most recent chip. If you would like some of the older 65nm chips specs posted let me know and I will add them. If you need any of the tables that are noted but not posted, send me a PM.

EDIT:
All chips are NOT created equal!
All written limitations should be taken with a grain of salt. Some chips might be able to handle these limitations and some might fall short. As most know, each chip will not OC or handle voltage the same. What I take from the below specs is that Intel used components on their chips that are rated to handle the specs listed. Though, not all components live up to their rated maximums. Intel is just stating that the risk of damaging will increase the closer you get to these limitations and going over these specs will almost guaranty a degrading chip. How close you decide to get to these points is up to the overclocker. I know there are many here who like to push the limits on their chips for 24/7 usage and this info is for them. The rest who wish to keep their chips alive for many years of use would probably be better sticking to VID as your limitation.

Source: http://www.intel.com/design/

Core i7 vcore max 1.55v 67.9c





QX9775 max vcore 1.35v 63c





QX9000, Q9000 and Q8000 vcore max 1.45v 71.4c or 76.3c






e7000 and e8000 max vcore 1.45v e8000 72.4c e7000 74.1c





e5000 max vcore 1.45v 74.1c





QX6000 and Q6000Max vcore 1.55v





QX6xx0 Temps

Q6600 B3 Stepping Temps

Q6600 and Q6700 G0 Stepping Temps



If you notice any mistakes please let me know.

If you feel like sharing this info, copy this in your sig:

More great data concerning Intel voltage and temps and can found in ChickenInferno's thread:
http://www.overclock.net/intel-cpus/...-voltages.html

__________________

GTL testing and tweaking for all 7 series nVidia boards

BikePilot

Great post, thanks!

__________________
Laptop: Lenovo X61S

DuckieHo

Why not compile data into easy to reference spreadsheet instead of screenshots of PDFs?

__________________
To answer most of your questions: (1) a fridge cannot cool a PC (2) 64-bit OS for over 3.4GB (3) If a PCIe card fits, it should work (4) Resolution, not screen size (5) If you have a question, it is not news (6) Report, not respond to Spam (7) Single-Rail/Non-Modular PSUs are not always better than Multi-Rail/Modular

GigaByte

I thought the same at first untill I read the description of "absolute max". Intel clearly states stability/average lifetime can not be expected. If 1.45v is really the max then why does Intel stop assigning VIDs at 1.3625v (and probably recycle/discard those that fail to run properly within the VID range)?

From what I understand..

1.25v max (box sticker): Scare off overclockers
1.3625v max VID: Max vcore without shortening life span (at all?)
1.45v max: "Sigh after sigh after sigh if you really insist" type of thing, then don't exceed this voltage, but lifespan is highly questionable.

__________________

PizzaMan

Becuase there is a lot of other data here like Vcc voltage limitations that might also help those who don't know how much FSB/VTT voltage is to much.

__________________

GTL testing and tweaking for all 7 series nVidia boards

bulmung

How sure is this? I don't want to sound like a noob, but will my I7 last at 1.55v? If I was able to pump that much volts through it I could probably get 4.6 ghz stable with a better radiator.

__________________
98% of the internet population has a Myspace. If you're part of the 2% that isn't an emo bastard, copy and paste this into your sig

derelict360

Q6600?

__________________
Intel Core 2 Quad Q6600 3.0/ Windows Vista Home Premium 64 Bit / EVGA 780 i FTW/ 2 x NVIDIA GeForce 8800GT 512MB Video Card - running SLI Mode / RAM - 8GB G.SKILL (PC2 8500) 5-5-5-15, @ 1066mhz

DuckieHo

It just might be too much information if someone is not familar how to read spec sheets.

__________________
To answer most of your questions: (1) a fridge cannot cool a PC (2) 64-bit OS for over 3.4GB (3) If a PCIe card fits, it should work (4) Resolution, not screen size (5) If you have a question, it is not news (6) Report, not respond to Spam (7) Single-Rail/Non-Modular PSUs are not always better than Multi-Rail/Modular

PizzaMan

Yea, the q6600 is a very popular chip. I'll add it later.

If you can keep temps below 67.9c. Those i7'a are some hot chips. You'll most likely reach temp limit first.

__________________

GTL testing and tweaking for all 7 series nVidia boards

Extreme Newbie

67.9c is the Tcase max not the Tj max for the i7. RealTemp and CoreTemp read the Tj max direct from the chip (according to Intel) so 100c is the max Tj (Core) temp.