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Getting a Q6600 to a stable 4ghz - Page 2

post #11 of 24
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Quote:
Originally Posted by dralb View Post




The Q6700 tends to be a slightly better overclocker due to better bin. The newer Q's are not as good as the older ones (in general) I have a 1.25 VID and I need 1.488 to run 3.6ghz. If it were an older batch, I could get a bit more at this vcore.
Interesting, all I have read has stated that there is really no point in going for anything else other than the 6600 as you dont get anything like the value for money.

I know that a custom kit will perform better, and i may end up doing that, but i'd prefer to avoid speding a day out of the week I have set aside for holiday building a cooling loop and if the cooling capability of something like the h20-220, Zalman or Coolit freezone elite is gonna save me that time and give comparable cooling results then it would be worthwhile.

Does look like I'll probably get frustrated though and end up with a swiftech custom system.
post #12 of 24
If you want a ready made kit, then the swiftech 220 is probably the best kit, although if you do go for it, make sure you tighten all the fittings because i've heard they sometimes leak due to not being tightened properly.
    
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post #13 of 24
Quote:
Originally Posted by Jakzilla View Post
eh?

You have a q6600 and it's at 4ghz, so why talk about a q6700 which is known to be a poorer overclocker than the q6600 and twice the price for lower speed than you have on your 6600?
the Q6600 is $215 and the Q6700 is $279 for retail at newegg. Or you can get OEM Q6600 for $219 and the Q6700 for $259 at TD. So hold up on your "twice the price" comment.

And how can you say the Q6700 is a poor overclocker? it is a higher binned CPU cut from the same waffer as the Q6600. Have you tried OCing any of the newer Q6600s? I've been through 2, neither of which could reach 3.6GHz. But my Q6700 can run 3.8GHz with 1.41v vcore.


Here is something on the binning from someone claiming to work for intel:
Source
Quote:
The newly fabbed CPU is connected to a special "tester" machine (see: www.teradyne.com for one vendor). This machine controls all of the pins to the CPU, and specially-written test programs are played onto the pins (with expected results). The clock and voltage are increased until the point of failure, and this determines which bin it makes.

Disclaimer: I work for Intel, and I am greatly simplifying things, but this is the basic explanation.
Here is also an article on the binning process:
Source
Quote:
To the gaming enthusiest, rich with disposible income, Intel markets its most expensive, and highest performing products. To the average consumer, Intel markets a chip rated for far less performance. In order to save on manufacturing costs however Intel makes just one type of chip, which is then sold to both markets. But even though Intel makes just one type of chip, the quality of each individual chip can vary to some degree. Once the chips have been pressed from silicone wafers, each individual die is stress tested to determine how fast it is capable of running. During this "binning" process the highest quality processors (those whose dies have been pressed perfectly) are separated from the rest and sold under the flagship line from the premium bin. Lesser chips are sold with a locked multiplier at more reasonable prices in the "bargain bin". Fortunately for the overclocker, the limited demand for the expensive flagship processors combinded with gradual improvements in the manufacturing process means that high quality processors will begin to trickle down into the lower quality bins, especially as the processor line begins to mature.
As for why the Q6600 isnt clocking as high, I think it might be due to supply and demand. Since the drop in Q6700 prices, the demand for them has gone up. So those top tiered CPUs that were binned as Q6600s CPUs are probably now being binned as Q6700s. So there is less of a chance to get a higher OCing Q6600. But there are still good ones in many of the batches, the ratio has just changed, and so has the chance to get a really relatively good one. Again, this is only my thoughts.
Edited by ericeod - 5/11/08 at 9:28am
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post #14 of 24
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Quote:
Originally Posted by ace8uk View Post
If you want a ready made kit, then the swiftech 220 is probably the best kit, although if you do go for it, make sure you tighten all the fittings because i've heard they sometimes leak due to not being tightened properly.
Cheers fella, though I'm still a bit confused about what kind of results I can expect from such a kit.

And re 6700 - now it's not twice the price of the 6600 any more - just £40 more, if it is slightly more capable of a higher overclock then perhaps thats a wise investment - especially if new 6600's aren't looking as good as slightly older ones.

So now I'm actually more uncertain than I was before - I can see sacking it all and getting a qx9650.
post #15 of 24
If you live in england, pick up the watercooling special edition of custom pc magazine, they review it in there on a quad core processor and give it a pretty good score, if not go on google and search something like swiftech 220 q6600 results.
    
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post #16 of 24
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Originally Posted by ericeod View Post

And how can you say the Q6700 is a poor overclocker? it is a higher binned CPU cut from the same waffer as the Q6600. Have you tried OCing any of the newer Q6600s? I've been through 2, neither of which could reach 3.6GHz. But my Q6700 can run 3.8GHz with 1.41v vcore.

I said poorer, meaning relatively, but that was just based on a review i had read. Interesting read on the binning process, I had not considered this at all, but obviously makes a good deal of sense.
post #17 of 24
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Originally Posted by ace8uk View Post
If you live in england, pick up the watercooling special edition of custom pc magazine, they review it in there on a quad core processor and give it a pretty good score, if not go on google and search something like swiftech 220 q6600 results.
yeah - i've read that piece several times over now heheh, hence my mentioning swiftech over and over as they bum, the living daylights out of their products in that review.

So I can see that I think they said the H20-220 resulted in a cpu temp of 7 degrees lower than the reference tuniq tower, and that the custom swiftech kit was 23 degrees lower (just from memory which is admittedly poor), so yeah there is a big difference. But what I'm trying to ascertain is what kind of performance difference spending the extra £200 on a custom kit is going to get me over the H20-220. Will i be likely to get to say 3.8ghz with the h20-220 but over 4 with the custom or what?
post #18 of 24
i just hope you realize that by 'saving a day' and buying a pre-built kit could mean losing 7-10 days waiting for a replacement if something goes wrong.. if you're gonna do water, for the love of god do it right.

In terms of CPU, I recently picked up another Q6600 for work.. IT could not break 3.3 in a P35 we built, but hit 3.6 on air with no sweat in a Gigabyte X38-DS4 (Get the best board you can afford..)

And in terms of DCC apps, you do want to OC the RAM if you're rendering scenes with large textures and poly>subdiv creasing>poly (yes, RAM speed really does make a difference)
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post #19 of 24
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Quote:
Originally Posted by FearMeansControl View Post
i just hope you realize that by 'saving a day' and buying a pre-built kit could mean losing 7-10 days waiting for a replacement if something goes wrong.. if you're gonna do water, for the love of god do it right.

In terms of CPU, I recently picked up another Q6600 for work.. IT could not break 3.3 in a P35 we built, but hit 3.6 on air with no sweat in a Gigabyte X38-DS4 (Get the best board you can afford..)

And in terms of DCC apps, you do want to OC the RAM if you're rendering scenes with large textures and poly>subdiv creasing>poly (yes, RAM speed really does make a difference)
LOL yeah you have a point. In that case maybe I should just go all out and grab the swiftech TEC unit...

I apologise unreservedly for my laziness.
post #20 of 24
Quote:
Originally Posted by ace8uk View Post
rofl, I don't have the sun either but I still know it's hot....
lol sigged, you just made my day.

well, not really but you get the picture.
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