Direct die 4790k thermal throttling

[leglessman]

I have just delided my 4790k to improve thermals and OC ability's but it is idling in the same rang as with the IHS on at about 45c and it now hits TJMax under full load I don't have the direct die frame yet it is only being held down my cooler which is a custom AIO with a 120 and a 240 rad so there is no way the cooler is the problem and every time I check the mount is good I cant see any obvious problem with it there is full thermal past coverage but I'm wondering if not using a direct die mounting plate and just using the cooler for mount presher is bowing the die just enough to effect the cooling performance.
any ideas on what else I can try or confirmation on what I think the problem is would be greatly appreciated.

 

[Deleted member 185158]

AIO is not a water block per say, more or less a thin little cold plate with some water running over it.

Specifics here may help.

Are you at the top clocks for the cooling type?
Are you at the top v-core for this cooling type?

No idea.
It's a 4790K with a "custom" AIO in which the cold plate is at its limitation for thermal displacement.

Assuming of course the mounting is square and correct.

 

[leglessman]

AIO is not a water block per say, more or less a thin little cold plate with some water running over it.

Specifics here may help.

Are you at the top clocks for the cooling type?
Are you at the top v-core for this cooling type?

No idea.
It's a 4790K with a "custom" AIO in which the cold plate is at its limitation for thermal displacement.

Assuming of course the mounting is square and correct.

the mounting is square as for the custom aio i will ad a photo of it and the only oc i'm conffident doing at the moment is changing the core ratio and slowly increasing core volttige when needed until i hit the thermal limit so v-core is stock

 

[Deleted member 185158]

the mounting is square as for the custom aio i will ad a photo of it and the only oc i'm conffident doing at the moment is changing the core ratio and slowly increasing core volttige when needed until i hit the thermal limit so v-core is stock

It's a hot processor for sure. Top of the class.

Have you tried reusing the ihs plate? The extra copper might help. Usually the paste is trash under it from the factory, temps should have dropped 20c or so just from a repaste.

 

[leglessman]

It's a hot processor for sure. Top of the class.

Have you tried reusing the ihs plate? The extra copper might help. Usually the paste is trash under it from the factory, temps should have dropped 20c or so just from a repaste.

i haven't tried using the ihs again but i do have liquid mettle and a direct die frame on the way

 

[Deleted member 185158]

i haven't tried using the ihs again but i do have liquid mettle and a direct die frame on the way

I'd try the IHS plate again. Don't glue it, just clamp it down but watch for it to slide a little. Something while you wait.

 

[leglessman]

I'd try the IHS plate again. Don't glue it, just clamp it down but watch for it to slide a little. Something while you wait.

ok thankyou for the help

 

[Logan7]

For what it's worth, I delidded my 4790K, changed to liquid metal, and reinstalled the IHS.

I'm running 4.7 GHz all core at 1.32V and I don't think I can get thermals much above 80C when pushed to the limits with the most stressful tests, and that's with a $20 air cooler so for sure something isn't right.

My only other thought is that with running that much of a memory overclock, maybe that would add some heat because of the IMC? Seems a bit excessive though. IIRC uncore overclocking adds a bit of heat as well.

 

[D007]

the mounting is square as for the custom aio i will ad a photo of it and the only oc i'm conffident doing at the moment is changing the core ratio and slowly increasing core volttige when needed until i hit the thermal limit so v-core is stock

Ok.. What in the Frankenfuk am I looking at here?! Lol. Hey man, credit to you for working that out but I have 0 idea what that is or it’s capabilities.
My best suggestion would be to make sure it has a good flow rate and that the cooler plate is set firmly and evenly onto the die. But dam… I salute your ingenuity. That right there is gangster AF.

 

[leglessman]

For what it's worth, I delidded my 4790K, changed to liquid metal, and reinstalled the IHS.

I'm running 4.7 GHz all core at 1.32V and I don't think I can get thermals much above 80C when pushed to the limits with the most stressful tests, and that's with a $20 air cooler so for sure something isn't right.

My only other thought is that with running that much of a memory overclock, maybe that would add some heat because of the IMC? Seems a bit excessive though. IIRC uncore overclocking adds a bit of heat as well.

I have my new CPU cooler now and I'm running 4.7GHz all core at 1.28V and I could probably go lower and temps don't go above 75C with only the thermal paste that came wit the cooler no liquid metal yet my only problem now is that VRM is over heating and hard shutting the system off because turned off all thermal limits I turned off all thermal throttling

 

[Logan7]

I have my new CPU cooler now and I'm running 4.7GHz all core at 1.28V and I could probably go lower and temps don't go above 75C with only the thermal paste that came wit the cooler no liquid metal yet my only problem now is that VRM is over heating and hard shutting the system off because turned off all thermal limits I turned off all thermal throttling

That's interesting, how do you know its the VRMs?

 

[leglessman]

That's interesting, how do you know its the VRMs?

because I was using a temp gun to watch the chokes and they were getting to 130C and then it would shutdown and it was doing it consistently every time I tried to replicate it


this is my new mobo and it has no problems I'm back on Direct die cooling with the 4790K pulling 165 WATT's still waiting on the liquid metal though

 

[A&P211]

Why waste any more money on a old system

 

[leglessman]

Why waste any more money on a old system

because for me its not about having the best shit its about trying to get the absolute most out of what I've got and when you can get a high end bord for $25aud resolder a few caps to it and then be up and running why would I spend more money on something newer

 

[Deleted member 185158]

because I was using a temp gun to watch the chokes and they were getting to 130C and then it would shutdown and it was doing it consistently every time I tried to replicate it


this is my new mobo and it has no problems I'm back on Direct die cooling with the 4790K pulling 165 WATT's still waiting on the liquid metal though

Nice diagnostics! Looks like plenty of air flow, I'm surprised that old board was running that hot!

 

[leglessman]

Nice diagnostics! Looks like plenty of air flow, I'm surprised that old board was running that hot!

yeah im glad it was able to shut its self down

 

[Deleted member 185158]

yeah im glad it was able to shut its self down

That's the board doing a good job. Can you re-do the heat sinks on the old board? Probably all it needs I think.

 

[leglessman]

That's the board doing a good job. Can you re-do the heat sinks on the old board? Probably all it needs I think.

sadly not because the chokes are not being covered by the heat sink

 

[bobbybluz]

Rig a decent 120mm fan over the VRM heatsinks. That should help somewhat.