3770k IHS Removals - CPU temp dropped from 79C to 71C

[andressergio]

Stop posting these...we're increasing humidity in our places with drooling...

Lol next will rain and i will post 80%

[owikh84]

Hey guys becareful with Vcore seriously go 24/7 more that 1.30 can degrade your Ivy really...

- don't use more 1.30 vcore for 24/7
- don't use more 1.30 VCCSA
- don't use more 1.30 VCCIO
- use CPU PLL as low as possible

And you have a healthy Ivy ready for bench when you want.

On topic: before IHS mod i can use 5 Ghz but need more vcore and temps are highs...now two weeks beyond of ihs mod. I can use 5.0 Ghz with 1.40 vcore

Ivy will not degrade like Sandy was & more resilient to degradations.
On Sandy, just avoid putting vCore above 1.5v and stress it on water or regular watercooling.

@ sergio, isn't yours Phobya LM? I think you said Liquid Ultra
I'm using Ultra and curious how does it comparo to LM

[andressergio]

Ivy will not degrade like Sandy was & more resilient to degradations.
On Sandy, just avoid putting vCore above 1.5v and stress it on water or regular watercooling.

@ sergio, isn't yours Phobya LM? I think you said Liquid Ultra
I'm using Ultra and curious how does it comparo to LM

+1 for that

yes im using Phoyba wich says liquid also

but amazing results huh ???

[owikh84]

+1 for that

yes im using Phoyba wich says liquid also

but amazing results huh ???

duno if i posted before...

3770K @ 5.0GHz HT 1.44v

ambient: 35C

IHS off + Arctic MX-4:

max idle: 41C

IHS off + Coollaboratory Liquid Ultra

max idle: 44C

[andressergio]

duno if i posted before...

seems the Phoyba does the job very well over the original liquid ultra

[kirbster1966]

I used the liquid pro from cool laboratory. It has a better heat transfer than the ultra.

[Zeus]

duno if i posted before...

3770K @ 5.0GHz HT 1.44v

ambient: 35C

IHS off + Arctic MX-4:
snip
max idle: 41C

IHS off + Coollaboratory Liquid Ultra
snip
max idle: 44C

Assuming this is without heatspreader back in place?

You sure you had a good mount with the Liquid Ultra?

[hersounds]

Ivy will not degrade like Sandy was & more resilient to degradations.
On Sandy, just avoid putting vCore above 1.5v and stress it on water or regular watercooling.

@ sergio, isn't yours Phobya LM? I think you said Liquid Ultra
I'm using Ultra and curious how does it comparo to LM

So you say that pierdnoel is wrong? ( a.k.a DRWHO? ) ...ok! yes buddy go ahead!... put up your Ivy up, in a few months we can bench, and tell me later.

[owikh84]

seems the Phoyba does the job very well over the original liquid ultra

Good to hear that. I've ordered Liquid Pro last week & hopefully getting it this week.

I used the liquid pro from cool laboratory. It has a better heat transfer than the ultra.

yeah Liquid Pro is supposed to have at least 2x the thermal conductivity of Liquid Ultra

CL Pro = 82w/mK
CL Ultra = 32 or 38w/mK
IX = 20w/mK
PK-1 = 10.2w/m -c
everything else is less

[owikh84]

Assuming this is without heatspreader back in place?

You sure you had a good mount with the Liquid Ultra?

yeah bro IHS is removed. I think no issues with the block mounting,
I got 6-9C higher if running with IHS installed.

[Alex-Ro]

i benched the crap out of several ivy 3570K with 1.3 SA and 1.2 vccio,but not above 1.45 vcore as i did not get any improvement,5 ghz was with 1.45,5.1 would not work even with 1.55. all cpu's are up and working as in first day.It is pretty hard to kill ivy bridge using only mobo,unlike SB where you pop VCCSA with 1.5V and voila

[owikh84]

^ +1
SB-E is even worse, or the worst degrading chip.
The first day you put 1.45v for 5GHz, run several 3D benchmarks.
Not even torture it with stress tool eg LinX/IBT/Prime95, the chip needs 1.55v after a few days.
3x 3930K & 1x 3960X all degraded on me

[ChaosAD]

Today i delidded my cpu. It was dead easy. I used Phobya LM on die and Phobya HeGrease Extreme between IHS and cpu block. I booted the pc just to see that my temps were ONLY 5C better than before while crunching at 4.42ghz @ 1.2v Max temp Before Delid 83-84-83-81 and After Delid 79-79-79-77. I dont know what i did wrong and only have such a low drop

[kirbster1966]

1. I delidded
2. Cleaned all the original adhesive (black stuff) off of IHS and PCB of CPU.
3. Lightly sanded bottom of IHS (the lip that contacts the PCB) with 600grit sandpaper.
4. Applied LP to die (very very thin coat)
5. Applied LP to underside of IHS where it would contact die (very thin coat).
6. Installed IHS on DIE and clamped into motherboard with standard retention mechanism.
7. Applied LP to top of IHS - thin coat
8. Mounted waterblock (XSPC) using standard mount.
9. Enjoyed temperatures 40C lower than before.

Not sure why others dont see the same.

[andressergio]

Today i delidded my cpu. It was dead easy. I used Phobya LM on die and Phobya HeGrease Extreme between IHS and cpu block. I booted the pc just to see that my temps were ONLY 5C better than before while crunching at 4.42ghz @ 1.2v Max temp Before Delid 83-84-83-81 and After Delid 79-79-79-77. I dont know what i did wrong and only have such a low drop

1. I delidded
2. Cleaned all the original adhesive (black stuff) off of IHS and PCB of CPU.
3. Lightly sanded bottom of IHS (the lip that contacts the PCB) with 600grit sandpaper.
4. Applied LP to die (very very thin coat)
5. Applied LP to underside of IHS where it would contact die (very thin coat).
6. Installed IHS on DIE and clamped into motherboard with standard retention mechanism.
7. Applied LP to top of IHS - thin coat
8. Mounted waterblock (XSPC) using standard mount.
9. Enjoyed temperatures 40C lower than before.

Not sure why others dont see the same.

Well me neither mate you saw mine dropped 40C with that and 12C with MX2

i used the liquid on both die + IHS inside a bit + cpu block also...

[ChaosAD]

1. I delidded
2. Cleaned all the original adhesive (black stuff) off of IHS and PCB of CPU.
3. Lightly sanded bottom of IHS (the lip that contacts the PCB) with 600grit sandpaper.
4. Applied LP to die (very very thin coat)
5. Applied LP to underside of IHS where it would contact die (very thin coat).
6. Installed IHS on DIE and clamped into motherboard with standard retention mechanism.
7. Applied LP to top of IHS - thin coat
8. Mounted waterblock (XSPC) using standard mount.
9. Enjoyed temperatures 40C lower than before.

Not sure why others dont see the same.

I did exactly the same. Except part 3 and part 7. i used HeGrease Extreme instead of LM on IHS. I thought 20c drop would be easy, if not more. What waterblock do you use? Raystorm?

[Zeus]

Today i delidded my cpu. It was dead easy. I used Phobya LM on die and Phobya HeGrease Extreme between IHS and cpu block. I booted the pc just to see that my temps were ONLY 5C better than before while crunching at 4.42ghz @ 1.2v Max temp Before Delid 83-84-83-81 and After Delid 79-79-79-77. I dont know what i did wrong and only have such a low drop

Did you remove all the black glue? If not, this may hinder good contact. Pretty sure you have a contact problem, never seen as little as 5º drop.

[ChaosAD]

Yes i did remove all the black glue the best i could. Do you think its a die-ihs contact problem or a ihs-cpu block? Do you think lapping the IHS lip that contacts the PCB would help any, like kirbster1966 did?

[Zeus]

Well, the best you can do is take the cpu out again, remove lid and clean everything. Then just lay the heatspreader on top of the die without any tim. The ihs should "float" on the die. If the ihs lip rests on the pcb, lapping it would be a good idea. If not, just reapply LM and carefully mount everything back in postion.

[kirbster1966]

Using XSPC Rasa.

[Ecky]

Hi all! I decided to repost my results here from Anandtech (where I go by the username Yuriman).

To begin with, my system is as follows:

3570K
ASRock Z77 Extreme4
2xHD4870 Crossfire
WC loop - Apogee GT on my CPU + MCW60 on GPU1 + Black Ice GT 360 (3x120mm) rad + Laing DDC w/modded top (1/2" intake)
2x 4GB G.Skill Sniper DDR3 1600 1.25v
Intel X-25M G2 80GB
BFG LS 680w
+ some other stuff that isn't terribly relevant to this post.


Throughout most of my testing, room temperature has had little variation. When I say "Prime" I am generally referring to Prime small FFT testing done for at least 5-10 minutes to get my water temperature up to peak. Voltages are all the lowest drooped voltages (ie under Prime or Linpack) as reported via CPU-Z. Temperatures are all reported via CoreTemp or RealTemp and are taken after the paste has had at least 24 hours to cure.


To begin with, my chip seemed to be one of the worse Ivy Bridge i5's. It needed slightly above average voltage to hit a given clock and had well above average temperatures. After reading Idontcare's post on Anandtech I decided to delid my chip and see if I could improve my temperatures and/or lower my operating voltage.






Before delidding, I had been using Phobya HeGrease between the IHS and my waterblock, a compound that reviews generally agree is among the best non-metal pastes. I had the following temperatures loaded with Prime Small FFT at a room temperature of approximately 25c:
4.4ghz - 78c (1.192v)
4.6ghz - 89c (1.304v)


Post-pop Prime Small FFT temps, with the IHS remounted over the die (secured in place with the stock processor retention bracket) and having replaced Intel's stock paste with Phobya HeGrease, I had the following temperatures:
4.4ghz - 79c
4.6ghz - 94c

^
Temperatures actually got worse after replacing Intel's TIM with HeGrease. Seemingly, my temperature woes were not a result of either excessive gap or poor thermal compound used between the IHS and die, which were the two leading hypotheses on Anandtech for high temperatures on Ivy Bridge chips.

I decided to check the flatness of my waterblock's base and the surface of the IHS, and discovered that the IHS was more than a little concave. I thought about lapping the IHS, but lacking sandpaper I decided just to mount my waterblock directly to the die.


^ Initial temperatures right after delidding and mounting bare-die, before TIM had a chance to settle in. Due to increased temperatures I had to increase voltage to get stable.

24 hours of cure time later (after my bare die mount), my Prime temperatues dropped to around 4c below where I had been before delidding (78c -> 74c). This still seemed very high for a bare die mount, so picked up some sandpaper and went at my waterblock.

Before:


After (1000grit max):





Lapping my waterblock brought my load temperatures down to 71c at 4.4ghz, and down to 84c (from 89c before delidding) - I was again stable at 4.6ghz. IBT load was down to 91c from 98c before delidding (~1.3v), but this still wasn't anywhere near the results I wanted.

I ordered some CoolLaboratory Liquid Ultra, and applied it:




Which brings me to where I am now.

Prime loaded -
4.4ghz:
78c unmolested
71c lapped WB + bare die mount
61c using CL Ultra instead of Phobya HeGrease

4.6ghz:
89c unmolested
84c lapped WB + bare die mount
70c using CL Ultra

4.7ghz:
?? unmolested
100c lapped WB + bare die mount
78c using CL Ultra


IBT loaded -
4.6ghz:
98c unmolested
91c lapped WB + bare die mount
77c using CL Ultra

______________


I hope this is useful!

[C-N]

Hi all, Just thought I'd let you know I got another 10oC off my roof chop/LM 3570K changing cooler from the single fan Antec Kuhler 620 to the twin fan 920. I got the 620 free & thought it was quiet & good for what it was worth (about £40 here in UK) I figured I'd BUY another one for my work PC to replace my loud air cooler however when I went to order it I decided to pay a bit more get the 920 & use the 620 at work. I'm now real glad I ordered the 920.... for a single RAD all in one cooler IMO its a great piece of kit for the money.

Ambient 19oC

[hersounds]

Almost four weeks after ihs mod

This time with last Bios 1309 - Maximus V Gene

4.3 Ghz - IBT running - 1.064 Vcore load

4.3 load.jpg

4.3 Ghz - IBT finished stable - 1.088 Vcore Iddle ( 1.095 Vcore on bios)

4.3 stable.jpg

Core 1: 57 °C
Core 2: 60 °C
Core 3: 58 °C
Core 4: 52 °C

Improvements: the temperatures continue to drop and chip consume a little less Vcore

4.3 Ghz - Cinebench running - 1.072 Vcore load



4.3 Ghz - Cinebench Finished stable - 1.088 Vcore Iddle



Validation cap



http://valid.canardpc.com/show_oc.php?id=2563679

[nikolas61]

@hersounds

you got a good chip and excellent improvements in terms of temperature

[felix_w]

Ambient is 18C indeed ? Or different in your specific location ?