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post #12951 of 28303
Hi Liz, forgot to mention, but some TIM actually takes a few days (up to a week? - please correct me if I'm wrong here) to properly set, so you may want to wait a little while & observe temps before taking it apart again.
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post #12952 of 28303
Quote:
Originally Posted by PTFMWB View Post
Hey Liz, souns like you didn't apply the TIM very evenly. I suggest you try again, not sure which TIM you're using, but it shouldn't cause a 8 degree increase. Tip when screwing your cooler back onto the CPU: try to tighten the screws evenly, instead of completely tightening 1 before moving on to the next screw, this ensures a more even distribution of the TIM.
thanks for all your input guys, i'm using arctic silver 5. and yes the temperatures were lower with the stock TIM and then i went and reapplied it and it got much much worse.... (from 62 to like 78) i realize the stock is better and am wondering if i should try to locate that same stuff to try it again... i noticed on the second time i reseated the heatsink that i must tighten the screws evenly because i got marks on the base of the copper plate from the cpu from tightening one screw first. a temperature jump like that i'm sure i'm doing something wrong physically.


Quote:
Originally Posted by Ceadderman View Post
@ Liz... Intel typically runs about 4c higher on 1st core dear. So if your temps are higher it will affect your 1st core temp as well.

I'm not sure but your temps could be affected by too much as well as too little TIM as well as the ambient temp, and how tight you mount the Hydro to the CPU.
ok good to know my cpu isnt wonky. the ambient temps have not changed and i did tighten the mount as tightly as i can the first time and after i noticed marks on my heat sink copper plate i didn't tighten it as much the next time. but seemingly to no effect.

Quote:
Originally Posted by Ceadderman View Post
So look at your CPU, if you have solid coverage you'll know because the majority of each quadrant should be covered. It doesn't have to cover corner to corner, edge to edge. But the majority of each quadrant must be covered.

Too much TIM between the two surfaces will slow the wicking properties and increase the temps.

Just like solid metal to metal contact will create convection(for lack of the correct word) and overheat the CPU.

If you're applying the TIM correctly it should be thick enough to barely read the Manufacturers info on the surface of the CPU through the TIM but not so thick that it's illegible.
ok so i spread the AS5 on with a credit card so it covered the entire top of the cpu then i did the same with the heat sink. and also lapped the bottom of the heat sink and it was nice and shiny before i applied the AS5. Strangely enough i feel that it contacts worse than before...

Quote:
Originally Posted by Ceadderman View Post
I suggest if you haven't already to get some Shin-Etsu G751 which is the stock paste. You can use X23 if that's all you can get, but its average temp is slightly higher than G751.
i dont have any local retailers for either of those... someone suggested mx-2 or mx-3 which i can get here.

Quote:
Originally Posted by Ceadderman View Post
And so long as you have not fired up your system you can check under the heatsink and observe your TIM coverage. It could be that your CPU is domed enough that your coverage is limited and instead of having TIM where the dome is that you're getting a straight metal to metal contact.
so i did that. and it seems the middle of the heat sink isn't contacting the core and close to the corners it's metal to metal contact. which is really weird if you say the cpu is domed....

Quote:
Originally Posted by Ceadderman View Post
No worries about a defective CPU or Cooler since all CPUs' will have this defect to some degree. That's why people lapp their CPUs', to give the flattest surface possible for which the TIM can mate the two surfaces without direct contact.

~Ceadder
yes i have lapped the heat sink but am very very reluctant to do anything to modify the cpu.

thanks again for all your insight and everyone who replied... i am crossing my fingers that i can hopefully come up with something tomorrow.... i prehaps will try once more to maybe mount the pump in a different direction? maybe there will be a better orientation.....? donno...
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post #12953 of 28303
Quote:
Originally Posted by PTFMWB View Post
Hi Liz, forgot to mention, but some TIM actually takes a few days (up to a week? - please correct me if I'm wrong here) to properly set, so you may want to wait a little while & observe temps before taking it apart again.
i considered that for sure... and if it was like 3-4 degrees difference then i would have thought that too but i tried googling it and noone has ever reported like 10-15 degree jump..... which leads me to think that i physically installed it incorrectly or applied the TIM incorrectly or maybe the stuff i'm using is just not good for this particular heat sink? (since i used it with an arctic cooler 7 in a different computer and that one runs great...)
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post #12954 of 28303
This thread still blows my mind. 1.15 MILLION views
post #12955 of 28303
Quote:
Originally Posted by Yellowbeard View Post
This thread still blows my mind. 1.15 MILLION views
lol. it is what it is. i love my H50 and i plan on lapping it later on along with my CPU's IHS.

also get a hold of a mod or Admin to get a vendor status put on
post #12956 of 28303
*This is most likely your problem. You only need apply to one surface not both. Basicall you doubled the amount of TIM and even if you didn't squeeze it all out by twisting the Pump into locking position, couple it with any Burn time and your temps will reflect it.

You can get Both the X23 and G751 from performance-pcs.com if you're not in the States they do ship wherever mail can be sent. They're based in Florida and as long as your currency can be converted to US funds it should be all good. I know they ship to Canada cause Bugz got his fans on my recommendation from them. So as long as you're willing to pay Postage they'll ship it. Go with G751 over the X23 since it's cheaper and better.

Yeah CPUs' are domed, but they can also have a "rampart" as I would call it. Like having a Keep in the middle of a Castle. Something like how this looks.



If you look closely you can see where the copper is exposed on the center and the edges. This is an AMD CPU, but it's similar with Intel due to the manufacturing process. As you can see my TIM was a bit off. It wasn't enough to affect the temps but it wasn't optimal either. That was just a half grain of rice set to the center of the CPU and not spread.

While nothing is wrong with spreading out the TIM, I don't recommend it. It's going to get spread when you install the H50 twisting it into the lock ring and then putting pressure to the lockring via the screws. Basically tighten them til they seated and then give them about a quarter turn more in a criss cross pattern. Starting in Q1 then go down and opposite that to Q3 cross over to Q4 then up and across to Q2.

Then leave the side off and tighten each individually a quarter turn while the system is in Idle mode and check your temps if each core starts to increase then back the corresponding screw off the quarter turn you gave it.

That SHOULD fix your issues. If not then maybe it's time to consider RMA if your temps continue to be ungodly high.

Anyway hope this helps.

Oooooh also you may check the MoBo for a bent socket pin. I don't believe you have one but it could be an issue also.

~Ceadder



Quote:
Originally Posted by Liz View Post
*ok so i spread the AS5 on with a credit card so it covered the entire top of the cpu then i did the same with the heat sink.* and also lapped the bottom of the heat sink and it was nice and shiny before i applied the AS5. Strangely enough i feel that it contacts worse than before...

i dont have any local retailers for either of those... someone suggested mx-2 or mx-3 which i can get here.

so i did that. and it seems the middle of the heat sink isn't contacting the core and close to the corners it's metal to metal contact. which is really weird if you say the cpu is domed....

Edited by Ceadderman - 8/26/10 at 12:49am
 
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post #12957 of 28303
Quote:
Originally Posted by Liz View Post
ok so i spread the AS5 on with a credit card so it covered the entire top of the cpu then i did the same with the heat sink.
The tim only has to be applied to one surface, never put it on both surfaces. Too much of it has a negative effect.
Edit..beat me to it Ceadder.
Edited by pedrosa - 8/26/10 at 12:52am
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post #12958 of 28303


~Ceadder

Quote:
Originally Posted by pedrosa View Post
The tim only has to be applied to one surface, never put it on both surfaces. Too much of it has a negative effect.
Edit..beat me to it Ceadder.
 
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post #12959 of 28303
Quote:
Originally Posted by Yellowbeard View Post
This thread still blows my mind. 1.15 MILLION views
Hehe, glad to see some Corsair folks are paying attention to this thread-of-all-threads regarding their Hydro's xD

Quote:
Originally Posted by Liz View Post
which leads me to think that i physically installed it incorrectly or applied the TIM incorrectly or maybe the stuff i'm using is just not good for this particular heat sink? (since i used it with an arctic cooler 7 in a different computer and that one runs great...)
Liz check out a few youtube vids on the subject....do a search for "TIM Application" or "Applying TIM," lots of good videos to be seen some of which compare the different methods and show you how each one reacts under pressure - steered me away from using the spread or line methods.

The heatsink on the H50/70 is pure copper like most high end coolers so just use your favorite TIM, AS5 is probably the most commonly used 'after-market' TIM, I like ICDiamond7 as well...diamond surely transfers heat more effectively than silver, right?



Quote:
Originally Posted by ljason8eg View Post
The FM123 is crap and doesn't come close to it's specs.

http://www.xtremesystems.org/forums/...ht=fan+testing

Not sure about that man, mine have performed extremely well and outdid the excaliburs I had on my H50. When my room is quiet enough that I can hear fans, they do not make any sort of annoying(whining or odd noises) sounds, so I can hardly believe this guy comparing them to a crying baby.....
Based on my personal experience I would have to say the tester had some faulty products or I was extremely lucky....twice...

Keeping a 4.2ghz AMD overclock under 56c load with my crazy ambients would be pretty hard for sub-par fans(and I have tried a few, believe me), my FM123's do a good job of this and really move some air. The only negative thing I can say about this fan in fact has nothing to do with it's CFM or DBA but rather faulty controllers that came with them. Didn't matter much to me though as I was using a diff controller anyway.

It has been 3 years since that fan round-up as well and if the whole line had problems as "Vapor" is claiming it is possible they have since updated the fans or even switched manufacturers, I have read other reviews(a lot more in number) placing them about level with Scythe Ultra Kaze 3k's, in terms of performance, with less DBA.
Edited by slimbrady - 8/26/10 at 12:38pm
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post #12960 of 28303
Sorry, everyone, for the double post.
Edited by slimbrady - 8/26/10 at 4:58am
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