did i put the thermal compound on wrong?

[thechink09]

2 of my cores run 5 degrees hotter than the other. i recently had to replace my motherboard so i figured i would try out arctic silver 5 compound instead of the other stuff.

now at ideal two of my cores run at 45 and the other 2 run at 40. this is also hotter than what came on my cooler. before it was running at 38ish. not a big difference but i thought this stuff was supposed to make it run cooler.

did i just put the thermal compound on wrong?

i have an i7-950 and a H50 cooler.

 

[Geoff]

It's normal for cores to run at different temperatures, some are being utilized more then others. You may have put on too much or too little, causing the increase in temps. How much did you put on?

 

[thechink09]

i did 2 "rice grain" size and then i spread it evenly with a business card.

my cpu monitor show theres nothing or 1-3% going on when im not doing anything.

isnt the AS5 supposed to run cooler than regular stuff?

its been more than a week since i put the AS5 compound on there

 

[StrangleHold]

Too much. Use about the amount of one small grain of rice. If you spread it or let the heatsink spread it out is up to you.

 

[thechink09]

the instructions says to spread it. and when i did there was like nothing on there so i put another rice grain. alotof it was getting stuck on my card.

 

[Benny Boy]

Too much. Use about the amount of one small grain of rice......let the heatsink spread it out....

^ what he said.
you could put a little pressure on the sink and give it a little twist before you clamp it ,if you want.
i think pretty much all of them need to dry for max perf.
From AS5:
"it will take a up to 200 hours and several thermal cycles to achieve maximum particle to particle thermal conduction and for the heatsink to CPU interface to reach maximum conductivity. (This period will be longer in a system without a fan on the heatsink or with a low speed fan on the heatsink.) On systems measuring actual internal core temperatures via the CPU's internal diode, the measured temperature will often drop 2C to 5C over this "break-in" period. This break-in will occur during the normal use of the computer as long as the computer is turned off from time to time and the interface is allowed to cool to room temperature. Once the break-in is complete, the computer can be left on if desired."

with a business card

if using a spreader, use something like a credt card,,,business card's kinda flimsy.

 

[gamblingman]

I don't spread it, at all. I let the heatsink do the job when I am attaching it. I dont like the chance of small air bubbles under the heatsink because I smoothed the thermal paste wrong. Just because it looks smooth and evenly applied doesn't mean it is smooth. You're dealing with tight tolerances and small variances matter, a lot.

I apply the rice grain sized, hershey kiss shaped dollop of thermal compound. Then I seat the heatsink firmly, and I never twist the heatsink unless I must. With your heatsink/block in mind, I'd maybe apply slightly more than the grain of rice size, but not by much. Then set the heatsink down and secure it. And if I were you, I'd move slowly while seating that heatsink. There is no need to rush this step!

However, once you've set the heatsink into the paste, don't remove the heatsink then re-seat it again. You need to clean the paste off all of the mating surfaces and re-apply every time you remove the heatsink. And remember, apply too much, and it can be one heck of a mess!