3570K Delidded Instability

[abarth_1200]

Hi guys, I made the plunge into delidding my 3570K.

found the process straight forward enough, used Coolaboratory liquid ultra between the die and Intel heat sink and also between the heatsink and the Silver Arrow.

Once back together I turned on and opened up HW monitor to check idle temps, much to my shock I was up about 5 degrees and my cores were still out of whack, about 8 degrees difference between core 0 and core 1.

Ran IBT and it crashed straight away, same with prime95 temps hit 98 before I got a chance to stop the test, highest before delidding was 80

Overclocked to 4.4Ghz and nothing was changed during this process.

When replacing the intel heatsink I noticed that it touched the die before the sides so I thought this was OK, but now thinking about it, maybe there isnt enough pressure from the socket retainer pressing the CPU into the pins, is this possible? Or is my heatsink maybe not mounted properly? or both?

Help guys.

 

[abarth_1200]

OK panic over I think.

I remounted the cooler with some arctic MX-4 and tightened it all up, I didnt remove the IHS as its a PITA to get straight while crunching down on the retention lever so its the same as before. Also the reason I used MX-4 this time is because I was struggling to get enough out the syringe when I was mounting the cooler the first which I think is the cause of the whole problem here, not enough thermal interface between the cooler and IHS.

Temps at idle are similar if not 1 degree lower but load temps are great, max I hit was 69 under IBT for 5 minutes, where as before it reached 98 and climbing.

So it looks like I didnt use enough Coolaboratory Ultra first time round, must have used it all on the die.

 

[Martini1991]

You've removed the IHS changed the paste then put the IHS back on?
Personally, if you've already removed the IHS, I wouldn't use it, I'd just do die straight to the cooler, that'll give the best temperatures.
The liquid metal TIM straight to the cooler? Can imagine that being pretty good.

But that's assuming the Silver Arrow can compensate for the height.

 

[abarth_1200]

You need the IHS to hold the CPU in the socket... This isnt new news here

Maybe if I was under water but not with an aircooler with a specific bracket manufactured to the height of the socket and motherboard.

 

[Jokester]

There's other means to clamp the CPU into the socket depending on what cooler you're using. Not sure on the mechanism on the Silver Arrow so you might be stuck with having to use the IHS to do it.

 

[abarth_1200]

Well im open to suggestions and I can see how removing the IHS altogether would improve temps more, any ideas to get a silver arrow mounted on a bare die.

And are there any other implications, I can imagine the die isnt all that sturdy and if im squashing it down with a big copper heatsink what re the chances I dont chip a corner off it, or the CPU twists in its socket and bends pins or there isnt enough even pressure on the CPU and some pins arent in contact.

Is all the above the usual train of thought that run through the minds of overclockers?

 

[Martini1991]

You need the IHS to hold the CPU in the socket... This isnt new news here

Maybe if I was under water but not with an aircooler with a specific bracket manufactured to the height of the socket and motherboard.

I've once removed the Intel clamping thing and kept the CPU down with just a watercooling block.

You don't need the IHS to keep it in place.
The CPU goes into the socket, as long as there's pressure down (From the cooler) it's not going to fall out.