9900k delid

the wopster · 27 Nov 2019 at 13:26

I have just delidded my 9900k and all went well and it had lowered my temps considerably but I am still seeing quite a delta between the hottest and coldest core my realbench delta is 10c. I got all of the solder off the chip and it’s nice and shiny but I was expecting the cores to be closer together

the wopster · 27 Nov 2019 at 15:29

Hottest core now 92c on prime95 small fat with no avx offset, where as before I couldn’t even get prime to do 2 mins without bluescreening or a core failing

random_matt · 27 Nov 2019 at 19:36

Isn't the 9000 series soldered?

Parsley · 27 Nov 2019 at 21:03

random_matt said:
Isn't the 9000 series soldered?

It is but you can still improve on cooling by delidding it. It's a very soft solder than you can clean off fairly easily and I think they went that way so it didn't crack under high temperature. AMD use a harder solder that is more effective.

Saying that is it really worth the risk of delidding? Probably not, honestly.

woppy101 said:
I have just delidded my 9900k and all went well and it had lowered my temps considerably but I am still seeing quite a delta between the hottest and coldest core my realbench delta is 10c. I got all of the solder off the chip and it’s nice and shiny but I was expecting the cores to be closer together

You're not the only one... on delidding mine and adding a direct die frame, I ended up having a fairly significant delta between my hottest and coolest cores of about 8 or 9 degrees. I'm fairly sure it's because my Supremacy Evo has a bow in it to conform with the shape of the heatspreader that is usually on a processor, perhaps this is your problem as well? I'll be lapping it next time I have my loop apart but I'm happy enough with my temperatures that I'll leave it be for now.

random_matt · 27 Nov 2019 at 21:24

Parsley said:
It is but you can still improve on cooling by delidding it. It's a very soft solder than you can clean off fairly easily and I think they went that way so it didn't crack under high temperature. AMD use a harder solder that is more effective.

Saying that is it really worth the risk of delidding? Probably not, honestly.

You're not the only one... on delidding mine and adding a direct die frame, I ended up having a fairly significant delta between my hottest and coolest cores of about 8 or 9 degrees. I'm fairly sure it's because my Supremacy Evo has a bow in it to conform with the shape of the heatspreader that is usually on a processor, perhaps this is your problem as well? I'll be lapping it next time I have my loop apart but I'm happy enough with my temperatures that I'll leave it be for now.

Maybe should have bought a copper IHS instead, that is the route I am taking.

Parsley · 27 Nov 2019 at 22:42

I delidded it for direct contact, not to add another layer back, copper or otherwise.

It's something to mess around with anyway, not the first bit of lapping I have done

.

Deleted User 456458 · 28 Nov 2019 at 09:46

woppy101 said:
Hottest core now 92c on prime95 small fat with no avx offset, where as before I couldn’t even get prime to do 2 mins without bluescreening or a core failing

Be a bit careful with p95 small avx. Watch your current. When I was doing it at 5.1 it was going over the intel spec of 193amps.

For me that wasn’t worth the risk.

the wopster · 28 Nov 2019 at 11:44

Parsley said:
I delidded it for direct contact, not to add another layer back, copper or otherwise.

It's something to mess around with anyway, not the first bit of lapping I have done .

Yeah i was considering lapping the die