Delid+Liquid metal thermal paste (My success story results)

[bughtoo]

Over the course of the weekend i finally got to delid my CPU, put liquid metal thermal paste on it, relid it, liquid metal thermal paste on that and assemble my PC. These are the results.
Important parts of the system:

i7 4790k OCed to 4.8 GHz and 1.3V with 0.015offset voltage

EK Supremacy Evo acetal nickel waterblock

360mm +180mm radiators both with Push/Pull config (total off 8 fans) + 2 fans in the case

2x pump: main - Swiftech mcp655-B (set to maximum speed always, running smoothly for more than 2.5 years)

                in case main fails: Alphacool eiswolf GPX PRO 1070 waterblock + pump (without the rad)

Destiled water with germ killer and anticorosive solution as coolant

 

Room temperature:27*C

 

Before delid:

IC DIamond 24 carat

Idle: 30-35*C

Aida64 stress test (CPU,FPU,cache and system memory): 75-80*C

 

After delid, relid:

Thermal grizzly conductonaut liquid metal thermal paste

Idle: 25-30*C

Aida64 stress test (CPU,FPU,cache and system memory): 50-60*C

 

Deltas:

Idle: 5-10*C

Under full load: 15-25*C

Both tests had same voltage, same overclocks, same duration(1H).

For delid i used Delid-Die-Mate 2 and relid also with UHU Hightemperature Silikon.

 

Better results than expected, i dont think i could have gotten better, extremely happy i did it  Though working with liquid metal is A BI***. When

it gets a smooth surface getting it off is like trying to catch ball that is covered in oil. 

[sazrocks]

Dang those are good temps. What kind of temps do you get with something more intensive, like the x264 stresser?

[bughtoo]

31 minutes ago, sazrocks said:

Dang those are good temps. What kind of temps do you get with something more intensive, like the x264 stresser?

havent yet heard about that one, any link where to get it/ how to do it?  

[PrimeSonic]

Not bad. Impressive deltas.

I might have to give this some serious consideration next time I'm shopping for a CPU.

[Klovnious]

Nice. Been thinking about doing the same, but not sure if there's any point since I have a AIO cooler.

[rhyseyness]

2 hours ago, Klovnious said:

Nice. Been thinking about doing the same, but not sure if there's any point since I have a AIO cooler.

The cooler you're using shouldn't significantly affect your success.

(Unless you're using a huge custom loop, which keeps the chip near ambient under load without a delid.)

 

The AIO takes the heat from the heatspreader on the chip.

The interface between the chip and the heatspreader is what's being changed here.

I.e. the heat transfer from the chip to your cooler would be significantly better.

[bughtoo]

2 hours ago, rhyseyness said:

The cooler you're using shouldn't significantly affect your success.

(Unless you're using a huge custom loop, which keeps the chip near ambient under load without a delid.)

 

The AIO takes the heat from the heatspreader on the chip.

The interface between the chip and the heatspreader is what's being changed here.

I.e. the heat transfer from the chip to your cooler would be significantly better.

agree 100% with what you said, only addition would be that i also put the liquid metal between the heatspreader and the block itself which also helps with the heattransfer since now its chip->liquidmetal->heatspreader->liquidmetal->block (METAL FTW  )

[PrimeSonic]

3 hours ago, rhyseyness said:

(Unless you're using a huge custom loop, which keeps the chip near ambient under load without a delid.)

And this is probably the only reason I haven't really considered a delid.

 

I've got an overkill loop with more rad space than the CPU and GPU ever need.

The temps are pretty cool and the 6700K was never known to run particularly hot.

And my overclocks never hit thermal limits anymore. Just limits on how fast silicon can switch at the voltages I'm willing to subject it to.

 

But still, these are still impressive results.

And they are something to think about should I find myself dealing with a hot CPU in the future.

[For Science!]

4 hours ago, rhyseyness said:

(Unless you're using a huge custom loop, which keeps the chip near ambient under load without a delid.)

 

1 hour ago, PrimeSonic said:

 

I would say that it's actually the opposite, the more advanced your cooling of the IHS is, you're likely to see the benefits of delidding the CPU. With lower end coolers you are "bottlenecked" by the crappy transfer between the IHS and the CPU cooler, but as you get better coolers with copper plates that are cooled by water, you are likely to notice the TIM/height gap "limiting" the thermals.

 

I was not thrilled by the performance of my H100iV2 prior to delidding my 7700K, and so when I decided to go custom loop, I made sure I delidded prior to doing it since I knew if I didn't, the temps were not likely to be so different from the H100i v2 alone.

[PrimeSonic]

43 minutes ago, For Science! said:

I was not thrilled by the performance of my H100iV2 prior to delidding my 7700K, and so when I decided to go custom loop, I made sure I delidded prior to doing it since I knew if I didn't, the temps were not likely to be so different from the H100i v2 alone.

Yeah, I also wasn't thrilled with the performance of my H110iV2 when under load. And this is a 6700K we're talking about.

We're talking load temps that could easily go over 80C if I let it.

But after the custom loop was done, all my temps were so much lower.

 

Might I delid myself someday? Maybe. But right now, getting even lower temps just won't do anything for me at this point beyond just seeing lower numbers.

[bughtoo]

10 hours ago, PrimeSonic said:

Yeah, I also wasn't thrilled with the performance of my H110iV2 when under load. And this is a 6700K we're talking about.

We're talking load temps that could easily go over 80C if I let it.

But after the custom loop was done, all my temps were so much lower.

 

Might I delid myself someday? Maybe. But right now, getting even lower temps just won't do anything for me at this point beyond just seeing lower numbers.

One thing is for you to feel safer with lower temps, that might be worth it is the lifespan of the cpu, but that is not aways true since they are designed to run anywhere from 20-80*C for long periods of time.