P775 TM1G question about purchasing a heatsink from aliexpress

[MiRaGe]

yes, UV is a must with 9900K. 

-100mV should work perfect

[the jg89]

would'nt it cost performance if you do that?

[MiRaGe]

just on a contrary - it will gain performance.

[the jg89]

16 minutes ago, MiRaGe said:

just on a contrary - it will gain performance.

interesting

just wondering, how low did you manage to get with the new heatsink?

[MiRaGe]

Around 10C lower on the CPU’s side and 7-8C lower on the GPU’s. 

[the jg89]

10 minutes ago, MiRaGe said:

Around 10C lower on the CPU’s side and 7-8C lower on the GPU’s. 

Sweet 🙂

how'd you manage to tweak it further?

[MiRaGe]

Just cut the bottom cover, put liquid metal on the GPU, delidded the CPU and using liquid metal between the die and IHS. And measured very precise how thick the thermal pads should be.

[the jg89]

Ah I see

[srs2236]

Meanwhile my 9900KS:

 

[srs2236]

I am daily driving it at 99c pretty much nowadays. I don't even care anymore.

[the jg89]

5 hours ago, srs2236 said:

I am daily driving it at 99c pretty much nowadays. I don't even care anymore.

And no problems whatsoever? like the laptop shutting down suddenly?

That hasn't happened to me though but wondering if that's happened.

[srs2236]

2 hours ago, the jg89 said:

And no problems whatsoever? like the laptop shutting down suddenly?

That hasn't happened to me though but wondering if that's happened.

It is thermal throttling almost all the time. It doesn't really shut down. After maybe 2 days of running it sometimes crashes but thats probably more like some OC or undervolt of mine to blame and not really the temperature.

 

I am not worried about the CPU degrading or dying because of these temps but more worried about the longevity of the motherboard and its components around the CPU when running these types of temperatures. However so far it is perfectly fine. I will maybe in the future do some mods to try and improve the cooling though. Curious about the new fans, need delid IHS, perhaps order the phase changing thermal pad etc. I am 100% sure it will improve my situation. Last time I repasted was once I installed 3080. And Thermal Grizzly likes to lose it's performance over time like crazy.

[the jg89]

If only there was someone that can build custom laptop parts for you,

now that would be something 😄

[srs2236]

18 minutes ago, the jg89 said:

If only there was someone that can build custom laptop parts for you,

now that would be something 😄

I have an update. It does eventually shut down. I was playing Little Misfortune for maybe 1 hour on Quiet mode.

 

Quiet mode means, fans run at very low (inaudible) speed. CPU ran 100C for the whole time. What happened was the 100C went slowly to GPU, and just spread I guess through the whole computer until it just litterally shut down. Not crash, not restart but shutdown.

 

I can only assume this is a safety mechanism before something overheats badly.

 

I can say, I was suprised how hot the PC had gotten. The whole chassis was litterally on fire xD It took like 30 mins to cool down passively to room temp.

 

So yeah. I have just been recently very annoyed at the stock fan speed profile. It's litterally a jet engine. I need to order some new cooling supplies and put a custom fan profile or something. I don't mind it being loud while gaming. I slap on 100% fan speed on both fans, put on headset and game on. It works for hours, CPU is on 100c but it doesn't shut down or anything like that. I just hate that it sounds like a jet engine while playing a indie game like Little Misfortune or just idle.

 

So I have been punishing it a bit lately haha.

 

But turns out it will shut down eventually if you let it burn without any fans working. It was roughly 60W on CPU and 50W GPU. 110W without fans for an hour is actually not bad.

[MiRaGe]

You need a cooling pad like mine (custom made, 2x80mm inaudible fans) 

this laptop can’t be cooled down without custom mods. 
Don’t let this to happen again, especially on the GPU side - it could kill it. The thermal limit for those GPUs is 87C. 

[1610ftw]

On 3/19/2023 at 9:25 PM, srs2236 said:

I have an update. It does eventually shut down. I was playing Little Misfortune for maybe 1 hour on Quiet mode.

 

Quiet mode means, fans run at very low (inaudible) speed. CPU ran 100C for the whole time. What happened was the 100C went slowly to GPU, and just spread I guess through the whole computer until it just litterally shut down. Not crash, not restart but shutdown.

 

I can only assume this is a safety mechanism before something overheats badly.

 

I can say, I was suprised how hot the PC had gotten. The whole chassis was litterally on fire xD It took like 30 mins to cool down passively to room temp.

 

So yeah. I have just been recently very annoyed at the stock fan speed profile. It's litterally a jet engine. I need to order some new cooling supplies and put a custom fan profile or something. I don't mind it being loud while gaming. I slap on 100% fan speed on both fans, put on headset and game on. It works for hours, CPU is on 100c but it doesn't shut down or anything like that. I just hate that it sounds like a jet engine while playing a indie game like Little Misfortune or just idle.

 

So I have been punishing it a bit lately haha.

 

But turns out it will shut down eventually if you let it burn without any fans working. It was roughly 60W on CPU and 50W GPU. 110W without fans for an hour is actually not bad.

 

That sounds rather dangerous and swapping a motherboard is a pita and a new GPU is very expensive so you may not want to do that anymore😄

 

Do you still run at 5.0 GHz all cores for the CPU? As an immediate measure you could get that fan profile changed and go down by 0.1 or 0.2 GHz - that will cost you 2 to 4% CPU performance at most (less if it is throttling anyway) and you will surely need 10 to 20% less power which will help a lot with temps.

 

Recently got to play with a nice SL 10900K and X170SM-G that I got from brother @electrosoft and for a single CB R23 run it goes from 77°C 4.9 all cores 165W to 91°C 5.1 all cores with some appropriate undervolt. That is a lot more power for relatively little gain in performance, about 25% more power and less than 4% performance increase in this case so I will probably dial it down to 4.9 all cores as a daily driver, no need to overdo things.