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A dumb question??? - Probably.

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Dayv

Registered
Joined
May 8, 2001
You probably think this a dumb question, but how much thermal paste do you use.
The processor is a big black square with a little black square in the middle. Do I cover it all or just the small square? How thick is right?
It's not such a dumb question If I was to get it wrong.
 

Hoot

Inactive Moderator
Joined
Feb 13, 2001
Location
Twin Cities
That's not a dumb question at all. I'd say put a dot of compound the size of a BB on one end of the little little black square ( aka core ) and spread it around evenly. If that is too much, it will exude out once you put your HSF on. If the HSF has a thermal pad on it, remove it and any residue it leaves behind. If the surface on the HSF is rough, consider lapping it for a better mate to the core. How-to instructions abound.
Good Luck

Hoot
 
OP
D

Dayv

Registered
Joined
May 8, 2001
Thanx heaps for the info, I feel a lot more confident at not stuffing this up. All I ever seem to read about is HEAT-BAD, and thought oh S#@T what if I mess up. So thanx.,
Hooter, its an AMD chip, thanx.
 

Slake

Senior Member
Joined
Jan 12, 2001
Location
Knoxville,Tn
Let us know how it goes. Do a srearch on Lapping. Makes a world of difference.
Welcome! and good luck
 

Door Knob

Member
Joined
Feb 9, 2001
Remember the only dumb questions are those left unasked. Everyone at this forum is very understanding and always willing to help newbies (cause we still are).
 

bdf24

Senior Member
Joined
Feb 15, 2001
Location
Harford, WI.
I lapped my P3125 Alpha and got a 0 degree difirence in temps! WOW!

Actually I just really suck at lapping! I have no patience at all.
 

Ridenow

Sneaky Moderator
Joined
Apr 17, 2001
Location
Springfield, IL
Definitely not a dumb question, it is one that needs to be asked more often. If you read carefully you will discover that some warrantees are void if you get thermal compound anywhere on the processor except the die ( the small part in the middle ) Also some are electrically conductive as well as thermally conductive, this could cause problems with the bridges (those other things on the processor). Arctic Silver and most of the better compounds are not electrically conductive. The size of a BB or smaller depending on the processor is about right. You want enough to cover the die, but not ooze all over.
 

JML

Senior Member
Joined
Dec 30, 2000
Location
New Jersey
Dayv, just keep in mind the point of thermal grease or tape (tape sucks, don't use it), is to fill in the minor imperfections between the contact of the heatsink and the core of the cpu. Lapping it will get rid of some of these imperfections and provide a better contact. This is basicly stuff you've been told already, I just wanted to explain why.
 

Tachyon

Senior Member
Joined
Jan 7, 2001
Location
Arkansas
[Also some are electrically conductive as well as thermally conductive, this could cause problems with the bridges (those other things on the processor). Arctic Silver and most of the better compounds are not electrically conductive.

AS is slightly capacitive
 

bdf24

Senior Member
Joined
Feb 15, 2001
Location
Harford, WI.
Ridenow (May 08, 2001 06:14 p.m.):
Arctic Silver and most of the better compounds are not electrically conductive.

From what I've read, Arctic silver does conduct electicity. I could be wrong but that what I was always lead to believe.
 

Ridenow

Sneaky Moderator
Joined
Apr 17, 2001
Location
Springfield, IL
Tachyon (May 08, 2001 06:23 p.m.):
[Also some are electrically conductive as well as thermally conductive, this could cause problems with the bridges (those other things on the processor). Arctic Silver and most of the better compounds are not electrically conductive.

AS is slightly capacitive

Tachyon is absolutely correct. I have heard that if you use to much it can cause a problem. If you want to test electrical conductivity you can put a dab on a nonconductive surface and test it with a meter. Not sure how to test for capacitance.

When in doubt do research. Quote from http://www.arcticsilver.com/as2.htm

"Negligible electrical conductivity.
Arctic Silver II was formulated to conduct heat, not electricity. It is only electrically conductive in a thin layer under extreme compression."
 
OP
D

Dayv

Registered
Joined
May 8, 2001
THANX for all your help people, its been really great