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[Official] Ivy Bridge Owners Thread - Page 430

Poll Results: Which Ivy Bridge CPU did you buy?

This is a multiple choice poll
  • 50% of voters (692)
    i5 3570k
  • 43% of voters (586)
    i7 3770k
  • 6% of voters (91)
    Other
1362 Total Votes  
post #4291 of 7362
Quote:
Originally Posted by Arkaridge View Post

Okay, so i did the theoretical calculations for mounting a water block directly to the die.
I had no actual dimensions (unless someone gives them to me) of water block, die, etc. I assumed die was 1 x 2 cm, and copper plate of water block to be 4cm x 4cm x 0.2cm (L x W x H). Most values used for calculation were estimated for 'load' conditions.
Anyways, it turns out that the base of the water block would sufficiently distribute the heat across it's entire surface. Assuming you have a good mount, a direct mount onto the die would be more effective than having the IHS. My conclusion is based upon calculated biot numbers, which were always less than 0.1 (suggesting uniform distribution of heat across the water block).
I won't get into the details of how to calculate it (unless people insist).. but the results generally showed uniform distribution of temperature, regardless of the dimensions, temperatures i used. It's a pretty interesting result, but I'd like to see someone test it experimentally. I don't know how much of a difference it'd make, but directly mounting to die should be lower since there's no thermal resistance from the IHS and a layer of thermal grease.


I used contact paper pressure test to make sure I had good contact before applying TIM.

DT SNIPER Water Block Contact Pressure Paper mounted to IHS


thumbsdownsmileyanim.gif


DT SNIPER Water Block Contact Pressure Paper mounted to bare i5-3570k NO IHS


thumbsupsmiley.png


The solid pink color shows good contact.

I think this is a great method for visually seeing where the contact is on a mount. Great tool for getting a good mount.


Fujifilm makes it. https://www.fujifilm.com/products/prescale/guide/
Edited by SonDa5 - 10/5/12 at 2:27am
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post #4292 of 7362
Some new stability testing since I de-lidded.



20 run LinX pass in Windows Diagnostic Mode
4.8 GHZ 1.29v under load
TIM IC Diamond 24



http://valid.canardpc.com/show_oc.php?id=2532673

20 pass of LinX
4.5 GHZ OC on i5-3570k 1.15v under load
TIM IC Diamond 24

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post #4293 of 7362
Quote:
Originally Posted by Swag View Post

Quote:
Originally Posted by Valgaur View Post

.......should I go past that 1.55V wall...I want 5.3 and 5.4 so badly............

I guess I haven't told you or you haven't heard about it. I ran 1.58vcore on air (before I got my H100) for about 1 minute trying to get a 5.4 validation! It didn't work. frown.gif

I'v set the voltage on Auto in my first (and only so far) 5GHz attempt, the validation link showed 1.62 VCore tongue.gif

No more Auto
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post #4294 of 7362
Quote:
Originally Posted by SonDa5 View Post

Some new stability testing since I de-lidded.
20 run LinX pass in Windows Diagnostic Mode
4.8 GHZ 1.29v under load
TIM IC Diamond 24

http://valid.canardpc.com/show_oc.php?id=2532673
20 pass of LinX
4.5 GHZ OC on i5-3570k 1.15v under load
TIM IC Diamond 24
temps seem kind of high for 4.8 right ?
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post #4295 of 7362
Quote:
Originally Posted by DOM. View Post

temps seem kind of high for 4.8 right ?

Yes. It has always ran hot but with low voltage.

Looop has HD7950 and CPU in same loop with 1x120x120x25mmmm radiator.

I think temps will come down some when I get a larger radiator.

Also looking into a better TIM.
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post #4296 of 7362
Hey guys just for fun I was playing around with the different Turbo settings. Again... for FUN! biggrin.gif

I hit 5 Ghz easy on core 0.
Turbo set as 50, 47, 47, 46.



I later used affinity settings to try to isolate Prime95 to only use Core 0 (and HT core). It did sorta work, spending ~%90 of the time only using core 0.
What would happen is the when only running 1 thread of Prim95 it would pass the load between cores, so I would see CPU-z go 5, then 4.7, then 4.7, then 4.6, then 5.0 etc... Setting affinity to only use core 0 stayed at 5.0 Ghz with 1 Prim95 thread running fairly well.

Check out the temps and the voltage for that 5.0 Ghz clock thumb.giftongue.gif:D

If I only had a better cooler than my 3 Heat pipe Xigy S-1283 LOL biggrin.gif
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post #4297 of 7362
I got BSOD 0x101 (While folding although I ran IBT before)

I've raised the vcore to 1.175
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post #4298 of 7362
Quote:
Originally Posted by VonDutch View Post

from everything i read about it, temps drop 1 to 3C max without the IHS, and mounted directly to the Die..
i dont try, because i have a aircooler,Scythe Mugen 2 Rev. B push/pull, i think its to heavy and puts to much pressure on the die, its hard to mount it,
and afterwards, theres always a bit more pressure on 1 side of the die,
if i had a watercooling, i would surely try it..

Thanks!
Quote:
Originally Posted by Arkaridge View Post

Okay, so i did the theoretical calculations for mounting a water block directly to the die.
I had no actual dimensions (unless someone gives them to me) of water block, die, etc. I assumed die was 1 x 2 cm, and copper plate of water block to be 4cm x 4cm x 0.2cm (L x W x H). Most values used for calculation were estimated for 'load' conditions.
Anyways, it turns out that the base of the water block would sufficiently distribute the heat across it's entire surface. Assuming you have a good mount, a direct mount onto the die would be more effective than having the IHS. My conclusion is based upon calculated biot numbers, which were always less than 0.1 (suggesting uniform distribution of heat across the water block).
I won't get into the details of how to calculate it (unless people insist).. but the results generally showed uniform distribution of temperature, regardless of the dimensions, temperatures i used. It's a pretty interesting result, but I'd like to see someone test it experimentally. I don't know how much of a difference it'd make, but directly mounting to die should be lower since there's no thermal resistance from the IHS and a layer of thermal grease.

My thoughts as well, having a Silver Arrow on top of my die scares me... tongue.gif
Quote:
Originally Posted by VonDutch View Post

could do some benching at 5.1ghz and 1.485V vcore set in bios, 78C on hottest core with Aida,
prime would prolly give max 15-20C more, more likely 10-15C

That's really cool, no pun intended biggrin.gif
Quote:
Originally Posted by PCWargamer View Post

I do no 2d 3d benching at 5.1 or 5.2 - just cpu-z validation! (although I did get a run or two of superpi in at 5.1 - no go for 5.2 though!)

Submit it to the bot!
Quote:
Originally Posted by Aparition View Post

Hey guys just for fun I was playing around with the different Turbo settings. Again... for FUN! biggrin.gif
I hit 5 Ghz easy on core 0.
Turbo set as 50, 47, 47, 46.

I later used affinity settings to try to isolate Prime95 to only use Core 0 (and HT core). It did sorta work, spending ~%90 of the time only using core 0.
What would happen is the when only running 1 thread of Prim95 it would pass the load between cores, so I would see CPU-z go 5, then 4.7, then 4.7, then 4.6, then 5.0 etc... Setting affinity to only use core 0 stayed at 5.0 Ghz with 1 Prim95 thread running fairly well.
Check out the temps and the voltage for that 5.0 Ghz clock thumb.giftongue.gif:D
If I only had a better cooler than my 3 Heat pipe Xigy S-1283 LOL biggrin.gif

You can delid it and lower temps by 20c wink.gif
I thought about a variable turbo boost, but never gave it a go...Might try it this weekend.
post #4299 of 7362
The challenge with variable boost is that I don't think there is any concrete way of isolating cores to specific programs.
So you may be running on 5.0 for 10 min then 4.6 for 2 hours. I don't understand it enough to give a good answer though.
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post #4300 of 7362
Yeah, me neither...Nor do I know how to set up offsets to work with that kind of varying clock speed. Vid could help if set to auto, but once past the stock turbo multis you're pretty much screwed frown.gif
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