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Stulid Tested all of OcUK Thermal Paste Range

Discussion in 'Overclocking & Cooling' started by stulid, Feb 2, 2012.

  1. scotslad

    Hitman

    Joined: Jan 20, 2009

    Posts: 811

    What are any of you guys opinions on what would be the best thermal cpu paste to use on my setup with the Skylake i7 6700K cpu and the corsair H80 closed loop cooler (only using one fan on the rad, no room for two fans in my very small itx build) ?

    I will be trying my best to overclock the cpu, so need good decent temps.

    The H80 comes with paste on but I have been told its not very good paste although I could be wrong, so thats why I need to try and find what would be best paste to use for these items and my requirments.

    Thanks guys, please let me know, cheers :)
     
  2. stulid

    Capo Crimine

    Joined: Jan 17, 2010

    Posts: 66,849

    Location: weston-super-mare

    It comes with a silver based paste, its fine.

    Buy some newer fancier paste when it comes time to remount the cooler whenever that time arises.
     
  3. scotslad

    Hitman

    Joined: Jan 20, 2009

    Posts: 811

    ok cool, cheers :)
     
  4. mightymouse

    Gangster

    Joined: Mar 1, 2009

    Posts: 403

    thanks for this however, any advice on to spread or not? i have been reading so many different ways of applying but which is the best?
     
  5. stulid

    Capo Crimine

    Joined: Jan 17, 2010

    Posts: 66,849

    Location: weston-super-mare

    If its a large CPU such as Haswell-E then spreading can be good to make sure all parts are covered, but with Haswell/Devils canyon/Skylake I just do the blob in the center and let the clamping force of the heatsink spread it out.

    Video below shows various methods,



    Cross method looks best.
     
  6. setter

    Caporegime

    Joined: Dec 14, 2005

    Posts: 28,160

    Location: armoy, n. ireland

    Regarding Haswell E and paste, the small hole you see on the ihs of theese chips, does it matter if it gets blocked with paste? Fitting a new cooler earlier so had to get a fine brush and tease out a drop from this hole. MX4 so shouldnt cause any conduction issues if any got inside.
     
  7. stulid

    Capo Crimine

    Joined: Jan 17, 2010

    Posts: 66,849

    Location: weston-super-mare

    I've never had my X79 or X99 CPUs die from paste getting in the hole, I read ages ago its used to fill with glue and bond the heatspreader to the die (but then I also thought they were soldered) so if the hole is full of glue the chances of paste getting to a important part is 0%.
     
  8. cadmunkey

    Wise Guy

    Joined: Sep 16, 2014

    Posts: 1,456

    Location: West Yorkshire

    That video was quite interesting, glad to know cross method performs best, I used this last time I fit my cpu.
     
  9. doyll

    Soldato

    Joined: Jul 1, 2011

    Posts: 7,083

    The video above show the biggest problem with most TIM applications .. NO DIRECT CONTACT BETWEEN IHS AND COOLER BASE!!

    TIM does not transfer heat anywhere near as well as direct metal to metal contact.
    TIM is designed to fill the microscopic voids between metal surfaces, NOT CREATE A LAYER BETWEEN THEM.
    Oversized image.


    Additionally, the IHS size is as big as it is not to spread heat, but to provide a big enough area for cooler base to set flat and stable on. It is to thin to spread heat but maybe a couple mm from edge of chip.
    [​IMG]

    Intel specifications say mounting pressure of cooler on IHS should be 50-100 pounds per square foot .. that is at most, much less than 1 pound per inch(actually only 0.347-0.6944 pounds per square inch).

    This means their is not a whole lot of 'pressure' being applied to spread and force unneeded TIM out so we end up with direct metal contact wherever possible.
     
    Last edited by a moderator: Mar 1, 2016
  10. cavemanoc

    Mobster

    Joined: Mar 23, 2005

    Posts: 3,543

    Given that the Gelid isn't available in the shop - what's the current best-of-class for ease/performance for a 4690K?
     
  11. stulid

    Capo Crimine

    Joined: Jan 17, 2010

    Posts: 66,849

    Location: weston-super-mare

    Thermal Grizzly is.

    they do a few for different types of cooling such as Aeronaut = Air, Hydronaut = water, Kryonaut = sub zero.

    I dont see why you cant use Aeronaut on water or visa versa though.

    Kryonaut is designed for subzero and doent freeze and crack easily.

    Basically its what all the pros use to set records these days.

    This dispenser - https://www.overclockers.co.uk/ther...ormance-thermal-paste-3ml-7.8g-th-004-tg.html - includes two rubber tips that makes application absolute childs play.
     
  12. cavemanoc

    Mobster

    Joined: Mar 23, 2005

    Posts: 3,543

    Sweet - ordered! :D
     
  13. paco2013

    Associate

    Joined: Mar 25, 2016

    Posts: 3

    Location: netherlands

  14. HarryBizzle

    Gangster

    Joined: Aug 15, 2012

    Posts: 185

    Great thread. I didn't realise MX-4 was worse than AS5. I've just ordered a tube of MX-4 to replace a lost tube of AS5. Still, it was less than £4 and I don't plan on doing any overclocking on the chip I'm going to put it on so no great loss.
     
  15. doyll

    Soldato

    Joined: Jul 1, 2011

    Posts: 7,083

    What? Data shows MX-4 at 89.75c and AS5 at 89.5c
    But don't forget the so called 'testing' in this so called 'review' was done without the use of a thermometer or a record of ambient temperatures while these so called 'tests' were conducted. Simple stated, this means the CPU temps mean little to nothing because there is no baseline of air temp. We cannot calculate a delta temp because we can only guess, hoping the room was between 21c and 24c .. but that is only a guess. If this guess is close to accurate, we still have a 3c 'margin of error', meaning any all CPU temp may be 1.5c hotter or 1.5c cooler than reported .. so even though the CPU temps were taken to 100th of a degree, they could all be 1.5c warmer or cooler delta.

    At best this is only 'Spread-ability' review, but it is definitely not a temperature test, and anyone who understand the basic principles needed to conduct TIM testing knows this.
     
  16. Quartz

    Soldato

    Joined: Apr 1, 2014

    Posts: 6,243

    Location: Aberdeen

    How long does Arctic Silver 5 last in the tube? I've got - somewhere - a tube that's a few years old, maybe more. Will it still be usable?
     
  17. Plec

    Sgarrista

    Joined: Apr 19, 2003

    Posts: 9,699

    If it's been stored in a cool, dry place with the cap properly secured it should be OK.

    As long as it hasn't started to separate you should be good to go. I would discard the bit in the nozzle and use the TIM in the main tube.

    I had a tube that was ~5 years old - and apart from a tiny bit of residual liquid on opening it was fine. Exactly the same consistency and temps as the replacement tube i bought.
     
  18. Robbie_G

    Gangster

    Joined: Mar 16, 2008

    Posts: 7,385

    Location: OcUK HQ

    I think that would of been a great answer when they asked a year ago :). I wonder if they still have it.
     
  19. Plec

    Sgarrista

    Joined: Apr 19, 2003

    Posts: 9,699

    LOL - just noticed the user tag- @Quartz - (we cross paths a lot on the forums) and answered. Didn't even notice it was a sticky...

    ...and probably not :)

    *TBH - i've only just got used to acknowledging it's 2017 - kids make you lose all sense of time...
     
    Last edited: Aug 23, 2017
  20. Doogles

    Mobster

    Joined: Mar 22, 2014

    Posts: 3,691

    I've got some old thermal paste that is about 5 years old, it's not bad tbh! When I do a new rig I'll buy some new paste :D