The thread title is pretty self explanatory, I just wan to know if any of us has pushed the Core 2 to the point where it just won't work anymore.
I'd like to know if you have, if you would, where was the limit and what you think the limit for the Core 2 Duo is.
i wouldn't overclock it to the max even if i had the memory because i dont have the money
to ensure that if i did fry the processor i could go out and buy another.
Though If i did have the money, perhaps yes, i would
, I guess the max overclock would be somewhere around 5.5~6ghz, due to the short(er) pipeline....
------
I'm getting an intel e6600! yey! Tomorrow! (and zalman 7700alcu)
Haven't reached a limit cuz I haven't really pushed it to it's maximum. I've pushed it to 4.7GHz but not more. I just have bad memories of Northwood SDS (Sudden Death Syndrom) that was caused by electrical migration.
Highest OC on any C2D I have seen is 5525mhz on an X6800 by coolaler. If I had money, I would get an E6300 and see what she could take
can't you pin/volt mod it to get a higher voltage? :?
| Quote : Happens for Core2 at beyond 1.55V which starts going at an unacceptable rate once 1.675V is reached.
|
Not sure it's an intended Intel protection though. At least with Intel CPU's you know their process technology is superior to SOI. I mean Intel processors overclock like crazy where as AMD processors are always sorta near their limits.
If you look at it, although Intel Shrunk the amount of pipelines in the C2D as compared to the Prescott it still overclocks nearly as well as a Netburst processor.
| Quote : The thread title is pretty self explanatory, I just wan to know if any of us has pushed the Core 2 to the point where it just won't work anymore.
|
I wouldn't want to see how high it will go before death, because there's no gaurantee that the replacement chip will overclock to near the same speed....which could lead to 2 dead chips. I guess if i was a millionaire, maybe it would be interesting. :?
I want to do this with a E6300, but i just wanted too see if there was a level where i could bring it too and see how much i could incrementally up it before it just died.
one question, are you rich by any chance? or do you just have rich parents OR do just spend loadsa money on computers and have a good job
D
?
lol
kinda, yes, yes, no...
I love this stuff as much as the next dude. I just try not to be the typical rich pamby boy that forgets where his roots are and needs to get his ass knocked back to earth.
YOU. ARE. GOD.
Hmmm if I had a core2 cpu......................I am not that big into over clocking. When I do over clock....and I have, it is usually near the end of the usefullness of the cpu to get extra power out of it.
Ninja I assume that you mean you want to over clock a core2 cpu to its workable limit or over clock it until it fries?
I have always hoped that that Tom's would do an overclock CPU chart. One chart air cooled the other cooled by other means.
It seemes to me that intell cpu's do overclock better than AMD cpu's but they don't seem to give you the same boost per overclock as an overclocked AMD cpu. Core2 being the exception.
Try Google I am sure you can find plenty of over clocking info on the core2 chips. I took a look and there were numerous articles.
| Quote : YOU. ARE. GOD. |
No Wusy is. I am merely his humble prophet and priest. Bow to the temple of Wusy.... Ohmmmm.
| Quote : YOU. ARE. GOD. |
No Wusy is. I am merely his humble prophet and priest. Bow to the temple of Wusy.... Ohmmmm.
Don't you try and take my position you jerk! I will lay the smack down on your ass!!!! lol j/k
In any case, I will get a C2D and I will OC it until something fails. Then I will repeat, compensating for the broken hardware. I have an audit internship coming, so I will definitely be able to afford a C2D, I am thinking E6600, maybe 6700 + RD600 (ty wusy) + TEC cooling.
I don't know the meaning of limits other than it is my job to break them 8O
HAIL THE MAGICAL WUSY! HAIL!!!
| Quote : YOU. ARE. GOD. |
No Wusy is. I am merely his humble prophet and priest. Bow to the temple of Wusy.... Ohmmmm.Undead priest?
Peltier cooling is cheaper, I know, but why not go for a Mach II GT?
Because it is cheaper, and more adaptable. I am in college so I have to prioritize. the incremental cost of peltier over already existing water is much smaller then a complete redesign off of phase change, and that is my main concern, cost.
Edit: nice location... got any spare liquid nitrogen I can have?
Yeah, that's fine. I was hoping somebody would push a C2D on phase change and provide some numbers here.
Nope, no LN, but I do have an unlimited supply of R404a...
BTW: Which peltier device are you using?
Send me your C2D processor and I will let you know
Yo Ninja, where is ur zeon3060...you know who you want to give your x6800 to.
If the x6800 is still better than your zeon3060....you know who you want to give your zeon3060 to.
Best TEC peltiers....
VIGOR GAMING Monsoon II (the one Ninja is going to donate to me
)
Titan Amanda TEC
I think the scarcity of stories about fried C2D's comes from two factors.
1) For a given cooling method, there's a certain voltage beyond which you can't seem to stabilize higher frequencies. As you keep increasing the voltage, sometimes the overclock worsens, which tells you at once not to keep increasing voltage. The chip continues to operate at peak frequency at this optimal voltage, and even if the peak wears down a few percent due to overheating, it's still not a dead chip.
2) C2D has only been out for a few months, and most purchases are even more recent. Overclockers are careful to monitor temperatures, as you need a certain combination of voltage and temperature for a chip to slowly deteriorate. There may already exist such conditions, but we'll need time for the reports to start coming in.
I am going to use a switchtech TEC, MCW5002-775T™ LIQUID COOLED THERMOELECTRIC ASSEMBLY FOR INTEL® PENTIUM® 4 (LGA775) PROCESSORS probably. It should provide much better cooling than water, of course much better is a relative term.
Talk to me around Christmas time... it should be broken by then
What is R404a.... sounds dangerous and something I want to be a part of.
-3lfk1ng
Those are kinda weak peltiers.... the really good ones are just a copper square with bare leads and require an entirely separate PSU to power it. I am looking to stick a nice 226w peltier on my C2D, and it may get cranked up beyond 240w, if I get a meanwell PSU with voltage adjustment.
| Quote : I'll be only buying the parts. The actual construction/gasing will be done by an AC repair company.
|
Isn't it worth just avoiding all the hassle and get an astek vapochill ls?
| Quote : I'll be only buying the parts. The actual construction/gasing will be done by an AC repair company.
|
You've hit the nail on the head! Buying a stock unit like the LS is freakishly expensive, I can get 50,000BTU (sounds crazy!!!) of conventional cooling for that kind of money.
The fact that you've found an AC company to do the build work for you is an ENORMOUS plus. It's not impossible to do it yourself, granted you are familiar with AC equipment, but I know the average PC-enthusiast-slash-college-goer is NO AC technician.
The only thing I DON'T like about phase change is that you will need to eventually refill the unit with new coolant, and as you said, R404a ain't cheap and your compressor must be designed for it. R134a on the other hand I can get for just a few bucks from any auto parts store in ready-to-use cans.
I would look forward to the day where the thermal envelope of CPUs goes back down to the point where phase change cooling won't be required, but I can keep dreaming!!! Currently I'm on phase change, and I'll be staying with it for a while to maximize my investment, but for my next major build I will most likely go over to TEC/water because it is MUCH easier to put together and maintain.
Good luck with your AC build, I hope it exceeds your expectations!!!
Superfly, the Swiftech is an excellent choice, and the kit version comes with the meanwell psu. They build solid products.
Jack, quick question
how have you managed to accrue over 5000 posts having only joined earlier this year!
You must live on these forums
| Quote : Jack, quick question
|
He's very knowledgeable, and likes to enrich the forums with his input.
| Quote : Jack, quick question
|
He's very knowledgeable, and likes to enrich the forums with his input.
So thats a yes, he spends too much time here..... lol j/k
I wish I had more time to devote here, but my schedule is nowhere near stable.
Does that mean you are only half as knowledgeable as Jack, as you only have half the number of posts for a similar time frame??
just kidding!!
i'm not knocking anyone here
It made me think though, as i have actually been visiting tomshardware since about 1997 but only signed up this year too. i could'nt possibly rack up even your number of posts let alone Jack's and wusy's as i work too many hours have have loads of commitments.
OP: interesting question. but i can't afford to try and find out, i have almost as big a battle trying to keep my rev c0 prescott cool
| Quote : Does that mean you are only half as knowledgeable as Jack, as you only have half the number of posts for a similar time frame??
|
I can only wish that i knew 1/2 as much as Jack.
At what temps does the E6600 fail at? I've yet to find a post of someone who burnt out their chip. My temps have run into the mid 70s before without any visible problem.
| Quote : At what temps does the E6600 fail at? I've yet to find a post of someone who burnt out their chip. My temps have run into the mid 70s before without any visible problem. |
Pumping 2.0v into one, with enough cooling that it won't throttle/shutdown would probably kill it in short order.
| Quote : At what temps does the E6600 fail at? I've yet to find a post of someone who burnt out their chip. My temps have run into the mid 70s before without any visible problem. |
Pumping 2.0v into one, with enough cooling that it won't throttle/shutdown would probably kill it in short order.
From what I understand, the biggest enemy to CPU's is not heat as much as it is voltage, though the two are related. Under air, you run into too much heat before you can apply enough voltage to fry it (in general), the converse is true with water, TEC, Phasechange. With those you can eaisly push too much voltage and still keep a reasonable level of heat. It is a combo deal.
I want to see my C2D in the 0-10C range when underload and fully OC'd. I am not entirely sure how realistic that is, but thats why they call these things experiments. Wusy is, of course, going way over my head with his knowledge and I very much want to hear the result.
My vision, one day in the next oooooo 5-10 years, is in my study in my house that I am going to build.... building in a LN cooling apparatus to the wall and have it in a closet of some nature with pipes leading out of the closet and in on one side of a built in desk, and on the ends of those pipes having some version of quick connectors, like on water hoses. The idea being that once the LN is set up, all I have to do is exchange the end pipes each time I rebuild my computer.
How's that for utterly ridiculous?
PS-might need to make friends with a chem student.... not like I know how to setup an entire LN assembly lol.
Try dry ice.
If I had the money, no problem. I'd take that thing out as far as I could. Trouble is, the money. Taking out that far risks not only cpu, but the motherboard, graphics card, and anything else that gets in the way of flying electrons and frying circuits.
What? You smell smoke? Can't be, I've only got this thing up to 6 ghz. Gotta be another ghz left in it.
So if the CPU will always cut out and prevent thermal damage, can I take it into the high 70s like it was before. It would then idle around 58, and only hit the high 70s on load. I could maybe push up the voltage to 1.45 or something.
I should be able to get my CPU to 3.6Ghz at those temps, but am really worried because I dont want to fry my 8 week old chip. That would be a horrid feeling.
Please advise.
PS. Wusy, ever since that OC'ing guide, you've developed GOD status in these forumz. Its hilarious. We done son.
| Quote : From what I understand, the biggest enemy to CPU's is not heat as much as it is voltage, though the two are related. Under air, you run into too much heat before you can apply enough voltage to fry it (in general), the converse is true with water, TEC, Phasechange. With those you can eaisly push too much voltage and still keep a reasonable level of heat. It is a combo deal. |
Bang on. For normal users it's about keeping temperature under throttling threshold. That's all, they just can't fail through overheating anymore.
To true overclockers, above ambient temp just isn't even taken into consideration, but rather how cold you can get it and sustain it long enough to pull off a benchmark or whatever one is trying to accomplish.
The rule of thumb is the lower temperaure you can achieve, the higher clock you can pull off with the same voltage to a certain extent.
You can never have enough cooling when overclocking.
For us going for Bungholiomarks, we're all using voltages that far exceeds point of radical eletron migration. So the aim is to find a voltage that will allow the CPU to attain maximum potential while still lasting over roughly a week before potential degrades. After that it's up to luck, tweaking and how low in temp you can get to get maximum Mhz.
A skilled overclocker will be able identify that ideal setting in only a short number of runs before fine-tuning to ultimate. That in turn increases number of meaningful benchmarks they can pull off.
Hence my quest for lower temperature.
So assuming I don't want to cause any shortened lifespan to my 6800 extreme, what is the maximum voltage that I could safely apply? are you saying that any overvoltage at all shortens life to some degree?
There are 1128 identified and unidentified users. To see the list of identified users, Click here.
You are about to answer a thread that has been inactive for more than 6 months.
If you still wish to proceed, please ensure that your posting is original and does not duplicate or overlap any prior responses to this thread.

