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Intel E8400 - Ultimate OC! - Page 7

post #61 of 72
Yea, mine is definetly still under 1.3 in Windows, due to the absolutely terrible VDROOP on my board. There is still alot of headroom in that chip, I just ran out of time for proper testing because of finals.
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post #62 of 72
I love how every one of these E8400 OC threads becomes a voltage war.

My 2 cents...

1.3625 is the safe and recommended maximum voltage to run the chip at factory specs and still have the chip reach it's MTBF or lifespan of ~10 years.

1.45 is the absolute maximum voltage that the chip was designed to have pumped through it. This is not a recommended setting as it can shorten the lifespan of the chip significantly (est 2-5 yrs) due to accelerated electromigration leading to silicone degradation.

Any voltages above and beyond the 1.45 mark run serious risk of highly accelerated degradation leading to a short life expectancy of the chip.


Now, the way I see it, if this was Stockclock.net....we could all feel safe knowing that noone would go over the 1.3625 threshold and all would be peaches and ice cream. Thankfully, we are at OCN, and overclocking is WAT WE DO.

I think running your chip below 1.45 with proper cooling is a-ok. Some people were not lucky enough to get a chip out of the bin with a 1.12 VID, and must do some pushing to get in the PURSUIT OF PERFORMANCE...if ya know what I mean.
How many threads are there around here of someone killing a 45nm HALFNIUM chip? This stuff is a lot burlier than intel gave credit for when those spec sheets came out. Many articles have been written that attest to this fact.
One concern I DO have is when people sell these chips to others. There should be full disclosure of what you have done with the chip. I recently sold my E8400 that ran 95% of it's life @ 1.4v under water. I don't see a prob with this, and neither did those who looked at buying it. What I DO have a problem with is if someone does multiple suicide runs (not on LN2/DICE/Phase) with a chip at 1.6-1.7v and then tried to sell it without disclosing the fact, or trying to get 80% of retail for it. I have seen quite a few of the senior members who have stated in passing "I would never try to sell this chip after what I pushed it too". I respect that, and we should all take it upon ourselves to follow that principal.
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post #63 of 72
It turns into a voltage war because it is important for people to know the quality of the information they are getting. Saying 1.45 is perfectly fine to run your CPU at 24/7 isn't fair if you dont also say that 1.3625 is the recommended functional voltage. And that is exactly what would of happened if people hadnt come into this thread and said something.

Its great to push the limits, and sure that is what overclocking is about, but if you are going to try to give people advice, give them good advice.
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post #64 of 72
Quote:
Originally Posted by VCheeZ View Post
I love how every one of these E8400 OC threads becomes a voltage war.

My 2 cents...

1.3625 is the safe and recommended maximum voltage to run the chip at factory specs and still have the chip reach it's MTBF or lifespan of ~10 years.

1.45 is the absolute maximum voltage that the chip was designed to have pumped through it. This is not a recommended setting as it can shorten the lifespan of the chip significantly (est 2-5 yrs) due to accelerated electromigration leading to silicone degradation.

Any voltages above and beyond the 1.45 mark run serious risk of highly accelerated degradation leading to a short life expectancy of the chip.


Now, the way I see it, if this was Stockclock.net....we could all feel safe knowing that noone would go over the 1.3625 threshold and all would be peaches and ice cream. Thankfully, we are at OCN, and overclocking is WAT WE DO.

I think running your chip below 1.45 with proper cooling is a-ok. Some people were not lucky enough to get a chip out of the bin with a 1.12 VID, and must do some pushing to get in the PURSUIT OF PERFORMANCE...if ya know what I mean.
How many threads are there around here of someone killing a 45nm HALFNIUM chip? This stuff is a lot burlier than intel gave credit for when those spec sheets came out. Many articles have been written that attest to this fact.
One concern I DO have is when people sell these chips to others. There should be full disclosure of what you have done with the chip. I recently sold my E8400 that ran 95% of it's life @ 1.4v under water. I don't see a prob with this, and neither did those who looked at buying it. What I DO have a problem with is if someone does multiple suicide runs (not on LN2/DICE/Phase) with a chip at 1.6-1.7v and then tried to sell it without disclosing the fact, or trying to get 80% of retail for it. I have seen quite a few of the senior members who have stated in passing "I would never try to sell this chip after what I pushed it too". I respect that, and we should all take it upon ourselves to follow that principal.
Quote:
Originally Posted by trapperkeeper View Post
It turns into a voltage war because it is important for people to know the quality of the information they are getting. Saying 1.45 is perfectly fine to run your CPU at 24/7 isn't fair if you dont also say that 1.3625 is the recommended functional voltage. And that is exactly what would of happened if people hadnt come into this thread and said something.

Its great to push the limits, and sure that is what overclocking is about, but if you are going to try to give people advice, give them good advice.
Two of the best posts so far, I would like to point out.

You need to know that there is a risk when going above what Intel told you is safe.

But who is to say a kid should never climb the fence to get their basket ball?
Take the damn risk but know what might happen if something goes wrong - you might get bit in the ass by your neighbors dog and find yourself the laughing stock of the century when your CPU no longer works. While unlikely - it is possible that such things can go wrong.
Horrid analogy i know....


Just know the risk, probability, what is needed to control the risk of failure, and you will get what you want.

As VCheez pointed out, not everyone gets a super chip like I did so yes, the rules sometimes have to be broken. My chip has a super low VID of like 1.1v or so, Ive seen the latest chips coming with excess of 1.3v... Doesnt affect overclocking much as shown in the past - only the voltage needed to overclock. The mhz limit is determined by the chip itself and some luck too.
    
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post #65 of 72
post #66 of 72
Another thing to point out actually is that for the wolfdales VID really doesnt seem to mean much at all in terms of required voltage for overclocking....it only means something for the stock clock.

I have had several very low VID chips which did not overclock nearly as well as my 1.25VID chips...the chip I currently have is 1.25VID and does 4.1ghz on 1.168V....4.6ghz on 1.392V.

Even my 1.1625VID E8600 would not do 4.5ghz on less than 1.38V
    
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post #67 of 72
Quote:
Originally Posted by XFreeRollerX View Post

But who is to say a kid should never climb the fence to get their basket ball?
Take the damn risk but know what might happen if something goes wrong - you might get bit in the ass by your neighbors dog and find yourself the laughing stock of the century when your CPU no longer works. While unlikely - it is possible that such things can go wrong.
Horrid analogy i know....



Maybe a bad analogy but, I can't help but run with it.

Most of us get to play with our balls without bit marks on our a$$e$.
Edited by Ledge68 - 12/12/08 at 2:45pm
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post #68 of 72
Quote:
Originally Posted by gurusan View Post
It depends on the chip and the clock you want obviously. 4.4ghz at 1.33V is a very nice clock and not common, I've only had a few wolfdales that clocked like that (current one included).

I am looking for 5ghz benchable and I think i have found the chip.
I must be in the minority as well click on link in sig.
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post #69 of 72
Quote:
Originally Posted by hout17 View Post
I must be in the minority as well click on link in sig.
indeed you are. very nice clock well done
    
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post #70 of 72
I havent looked at the other 6 pages of this thread, but this cpu is stable right? It really doesnt mean anything if you can just play crysis on it.
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