Does too much thermal paste decrease performance?

This topic is locked from further discussion.

Avatar image for Armalite1016
Armalite1016

1574

Forum Posts

0

Wiki Points

0

Followers

Reviews: 30

User Lists: 0

#1 Armalite1016
Member since 2005 • 1574 Posts

I bought a new processor (Core 2 Duo 2.93GHz E7500) and got some thermal paste, and put maybe about 2-3 drops worth on it. Would that be too much do you think?

Avatar image for RayvinAzn
RayvinAzn

12552

Forum Posts

0

Wiki Points

0

Followers

Reviews: 0

User Lists: 0

#2 RayvinAzn
Member since 2004 • 12552 Posts
It won't decrease performance, but too much thermal compound can increase the temperature of your CPU. If it's way too much it even runs the risk of shorting out things around your CPU socket (you'd need a LOT too much and of a thermally conductive variety for this to happen however). Remember that the purpose of thermal compound is to fill in microscopic gaps between your heatsink and CPU, not to conduct heat in and of itself.
Avatar image for Butter
Butter

975

Forum Posts

0

Wiki Points

0

Followers

Reviews: 0

User Lists: 0

#3 Butter
Member since 2002 • 975 Posts
Yes, it can increase the temperature of your CPU and can cause damge/instability. Mor importantly, When you put on thermal paste it is very important to spread a thin layer of thermal compound over the entire CPU. I usually use a piece of paper or toothpick as a tool to do it.
Avatar image for opamando
opamando

1268

Forum Posts

0

Wiki Points

0

Followers

Reviews: 0

User Lists: 0

#4 opamando
Member since 2007 • 1268 Posts
Yes, it can increase the temperature of your CPU and can cause damge/instability. Mor importantly, When you put on thermal paste it is very important to spread a thin layer of thermal compound over the entire CPU. I usually use a piece of paper or toothpick as a tool to do it. Butter
My experiences have show that it is just as good to just put a drop and let the heatsink spread it out. If you have enough/not too much TIM then either way should suffice.
Avatar image for Deadly_Fatalis
Deadly_Fatalis

1756

Forum Posts

0

Wiki Points

0

Followers

Reviews: 4

User Lists: 0

#5 Deadly_Fatalis
Member since 2006 • 1756 Posts
You only need about a pea sized drop. Too much thermal paste is usually bad for your CPU.
Avatar image for Ghost_702
Ghost_702

7405

Forum Posts

0

Wiki Points

0

Followers

Reviews: 5

User Lists: 0

#7 Ghost_702
Member since 2006 • 7405 Posts
Spreading it out by hand causes air bubbles to form. It's best to put a drop in the center or a line down the center. Applying the heatsink will spread it out, covering the short area of the processor it needs to, when you put it on. Remember covering the entire processor corner to corner doesn't make a notable difference.
Avatar image for DigiTM73
DigiTM73

801

Forum Posts

0

Wiki Points

0

Followers

Reviews: 0

User Lists: 0

#8 DigiTM73
Member since 2009 • 801 Posts

I just wish they make smaller containers to buy. I bought the expensive but good Arctic Silver, and still had so much left to just bin afterwards. It went hard from not putting the lid back on properly.
They cater for people building 3-4 machines easily. It only affects temps. If you apply and find your CPU pretty high in temp, then there's too much. Too little and the same happens.
Also remember if you change your CPU and want to keep your CPU cooler (if't it's a good aftermarket one), remove ALL heatsink from the CPU cooler with metho and rag. Sorry if you already knew this, I just know a couple of people that just didn't do it and it made things hot.

Avatar image for CPM_basic
CPM_basic

4247

Forum Posts

0

Wiki Points

0

Followers

Reviews: 1

User Lists: 0

#9 CPM_basic
Member since 2002 • 4247 Posts

I've always been taught to evenly spread the thermal paste equally over the surface. IMO I think some of you guys are crazy for just putting a little dab in the middle and just slapping on the heatsink and letting heatsink flatten the drop (how can you be sure to cover the whole CPU surface???). A good way to spread the thermal paste is with a credit card or some type of card.

Avatar image for DigiTM73
DigiTM73

801

Forum Posts

0

Wiki Points

0

Followers

Reviews: 0

User Lists: 0

#10 DigiTM73
Member since 2009 • 801 Posts

I've always been taught to evenly spread the thermal paste equally over the surface. IMO I think some of you guys are crazy for just putting a little dab in the middle and just slapping on the heatsink and letting heatsink flatten the drop (how can you be sure to cover the whole CPU surface???). A good way to spread the thermal paste is with a credit card or some type of card.

CPM_basic

That's how I was taught at uni. To only put tiny dab on, but spread it with something smooth. So it's really really light layer over the area. Just like spreading butter. mmmmm

Avatar image for Armalite1016
Armalite1016

1574

Forum Posts

0

Wiki Points

0

Followers

Reviews: 30

User Lists: 0

#11 Armalite1016
Member since 2005 • 1574 Posts

Ok thanks guys. I think that's clearly the problem. I didn't spread it very well at all, and my guess of how it spread is that some bubbles formed or something. I'll have to reapply it.

Avatar image for cookdog420
cookdog420

41

Forum Posts

0

Wiki Points

0

Followers

Reviews: 0

User Lists: 0

#12 cookdog420
Member since 2006 • 41 Posts

I used arctic silver for my intel i5 750 with a coolermaster hyper 212 plus. I spread it evenly across the whole cpu and get idle temps at 28c and 100% loads at 42c. Is that normal?

Avatar image for Armalite1016
Armalite1016

1574

Forum Posts

0

Wiki Points

0

Followers

Reviews: 30

User Lists: 0

#13 Armalite1016
Member since 2005 • 1574 Posts

I tried evenly spreading it but it's so thick it just gets stuck to the toothpick/card/whatever the f*ck I use to try spreading it. So I just put a blob in the middle, and just pressed down really hard, tried to even it out with the pressure of the heatsink fan. It's now idling at 45c... So I kind of doubt that worked...

Avatar image for entropyecho
entropyecho

22053

Forum Posts

0

Wiki Points

0

Followers

Reviews: 0

User Lists: 0

#14 entropyecho
Member since 2005 • 22053 Posts

The point of thermal paste is to provide a medium to increase the thermal conductivity between your CPU and the base of the heatsink. If you put too much, it actually acts as an insulator, which is the exact opposite of what you want. In the worse case scenario, you can overheat and damage components.

Maybe this article can help: http://www.techpowerup.com/printarticle.php?id=134

Avatar image for MaoTheChimp
MaoTheChimp

1727

Forum Posts

0

Wiki Points

0

Followers

Reviews: 0

User Lists: 0

#15 MaoTheChimp
Member since 2008 • 1727 Posts

The point of thermal paste is to provide a medium to increase the thermal conductivity between your CPU and the base of the heatsink. If you put too much, it actually acts as an insulator, which is the exact opposite of what you want. In the worse case scenario, you can overheat and damage components.

Maybe this article can help: http://www.techpowerup.com/printarticle.php?id=134

entropyecho

I have yet to ever see this happen. The worst I've seen is getting TIM into the CPU socket, but even in scenarios where the user has put enormous blobs of paste, the chip didn't overheat. The retention method should give enough pressure to evenly spread the TIM regardless of the amount.

I've always been taught to evenly spread the thermal paste equally over the surface. IMO I think some of you guys are crazy for just putting a little dab in the middle and just slapping on the heatsink and letting heatsink flatten the drop (how can you be sure to cover the whole CPU surface???). A good way to spread the thermal paste is with a credit card or some type of card.

CPM_basic

I've done tests myself, and there's a plethoria of experiments regarding this issue on different forums. The general concencus is that there is no tangible difference between methods, but the "dot" method is considered more reliable as it has the lowest chance of failure as it is less prone to introduce foreign substances.

Also, keep in ind that the retention bracket usually applies a dozen pounds of pressure on the IHS, and that should be more than enough to evenly spread the TIM.

I tried evenly spreading it but it's so thick it just gets stuck to the toothpick/card/whatever the f*ck I use to try spreading it. So I just put a blob in the middle, and just pressed down really hard, tried to even it out with the pressure of the heatsink fan. It's now idling at 45c... So I kind of doubt that worked...

Armalite1016

You shouldn't press down on the heatsink, as even the slightest sideways movement can introduce air bubbles into the paste. Try applying a "blob" in the center and mounting the heatsink without adding any extra pressure. Also, did you clean off the contact surfaces with a proper cleaner before applying the paste?

Avatar image for Armalite1016
Armalite1016

1574

Forum Posts

0

Wiki Points

0

Followers

Reviews: 30

User Lists: 0

#16 Armalite1016
Member since 2005 • 1574 Posts

Well I have to move it to line it up to screw it down anyway, so that doesn't help me. Also, I did clean them both, thouroughly

Avatar image for PS2_ROCKS
PS2_ROCKS

4679

Forum Posts

0

Wiki Points

0

Followers

Reviews: 0

User Lists: 0

#17 PS2_ROCKS
Member since 2003 • 4679 Posts
I'm always unsure about the amount of compound to use so I just take my finger (clean) and spread it out nice and thin on the CPU.
Avatar image for Joe77
Joe77

646

Forum Posts

0

Wiki Points

0

Followers

Reviews: 0

User Lists: 0

#18 Joe77
Member since 2003 • 646 Posts

On the arctic silver website it says to just put a little bit in the middle.

Avatar image for xionvalkyrie
xionvalkyrie

3444

Forum Posts

0

Wiki Points

0

Followers

Reviews: 0

User Lists: 0

#19 xionvalkyrie
Member since 2008 • 3444 Posts

User saran wrap, it gives you the control/area that using your finger does, without any of the oils or the unevenness caused by your fingerprint.