paste or pad

But is it better for the purpose of heat transmission?

At 40C the pad turns to paste, so it is a non issue. 99% of all the
talk about paste being better is just hype. The best improvement I've
ever seen using paste over a pad is 2C. Hardly even worth the effort.
BTW a pad has never shorted out a CPU but paste does all the time.
That's why AMD doesn't want anyone using paste and if they find out
you did your 3 year warrany is void.

In comp.sys.ibm.pc.hardware.chips Rob Stow wrote:
Ed wrote:
Did a few AMD64s with paste and found out you don't want to cover the
whole top of those, just the center area.

I covered the whole top (very thinly) of the Opties I did.
I'll try it your way sometime and see if it makes a difference.

My technique for applying thermal grease/paste is to squeeze
out a log of the stuff centered between the long sides of
the dieback. Then very carefully squeeze it down and out
by pressing the heatsink down parallel while rocking slightly.

Practice a few times and check for how well the grease spreads.
Done correctly, this method eliminates air bubbles which are
the big enemies of heat transfer. Both thermal pads and
"trowel the grease flat" can get bubbles.

-- Robert author `cpuburn` http://pages.sbcglobal.net/~redelm

On Sat, 01 May 2004 09:05:24 GMT, Andrew J
wrote:



But is it better for the purpose of heat transmission?

At 40C the pad turns to paste, so it is a non issue. 99% of all the
talk about paste being better is just hype. The best improvement I've
ever seen using paste over a pad is 2C. Hardly even worth the effort.
BTW a pad has never shorted out a CPU but paste does all the time.
That's why AMD doesn't want anyone using paste and if they find out
you did your 3 year warrany is void.


arctic silver ceramique. not conductive. not capacitive.

Andrew J wrote:



But is it better for the purpose of heat transmission?

At 40C the pad turns to paste, so it is a non issue.

Except it's thicker, adds another layer between the CPU and heat sink.

99% of all the
talk about paste being better is just hype. The best improvement I've
ever seen using paste over a pad is 2C.

I've seen 6-8C

Hardly even worth the effort.
BTW a pad has never shorted out a CPU but paste does all the time.


?? Normal silcone HSG isn't conductive so that would be pretty tough!
--

Stacey

?? Normal silcone HSG isn't conductive so that would be pretty tough!

The most popular ones like AS(silver?) conduct electricity. The
smallest amount left behind voids your AMD warranty which many have
found out the hard way.

http://forums.extremeoverclocking.co...ad.php?t=86301

Andrew J wrote:

?? Normal silcone HSG isn't conductive so that would be pretty tough!


The most popular ones like AS(silver?) conduct electricity. The
smallest amount left behind voids your AMD warranty which many have
found out the hard way.

http://forums.extremeoverclocking.co...ad.php?t=86301

First let me say that I've used, and continue to use, arctic silver and it
can be fine if applied properly. However, noting that some of it may 'ooze'
out understates the problem. The stuff will adhere to anything like
gangbusters, with particular affinity for wherever you don't want it, and
one's 'normal' instincts on how to 'wipe it off' generally spreads it all
over the place rather than 'removing' it. Plus, get it on your fingers, an
incredibly easy event, and everything you touch will end up contaminated
with it as well.

It is the epitome of 'messy'.

Leythos wrote:

In article ,
says...

Andrew J wrote:

?? Normal silcone HSG isn't conductive so that would be pretty tough!


The most popular ones like AS(silver?) conduct electricity. The
smallest amount left behind voids your AMD warranty which many have
found out the hard way.

http://forums.extremeoverclocking.co...ad.php?t=86301

First let me say that I've used, and continue to use, arctic silver and it
can be fine if applied properly. However, noting that some of it may 'ooze'
out understates the problem. The stuff will adhere to anything like
gangbusters, with particular affinity for wherever you don't want it, and
one's 'normal' instincts on how to 'wipe it off' generally spreads it all
over the place rather than 'removing' it. Plus, get it on your fingers, an
incredibly easy event, and everything you touch will end up contaminated
with it as well.

It is the epitome of 'messy'.


Intel includes a syringe of heat-sink paste in their retail kits for
Xeon processors. In general, the least amount used is the best. I
generally put HSP on using a razor knife, and then almost scrape it all
off, leaving only a trace behind. To much paste is always a problem,
most people apply way to much. If the heat sink is machined properly it
a small dab will be more than enough.

Yes. As I said, if done properly.

And sometimes what seems like a 'good idea' turns out to be a bad idea. For
example, you spread your arctic silver, see a little left over 'dab', and
decide to be 'meticulous' and clean that off, just to be 'safe'. You
diligently take a 'lint free cloth' and delicately 'wipe it up' to discover
you've just taken a small 'dab' and smeared it over the entire surface you
'wiped'.


I know what you mean about getting it on things - when I started
building circuits a couple decades ago we used the same type of paste
and had the same problems then too - nasty silver or white crap all over
the tips/pads of your fingers

Hehe. Yeah. With the 'white crap', though, it's 'just' messy whereas the AS
'mess' can cause electrical problems regardless of their 'non conductive'
claims to the contrary.

Andrew J wrote:



?? Normal silcone HSG isn't conductive so that would be pretty tough!

The most popular ones like AS(silver?) conduct electricity.

Actually the "most popular" ones aren't conductive. Now if you said "The
most advertised" or "The most expensive/popular with overclockers who read
websites like they are gospel" maybe I'd go with that. :-)

I've tried AS (someone bought some and brought it to me to use on their
system) vs radio shack HSG and there was no difference in temps to amount
to anything. I can't see why anyone would use electrically conductive HSG
anyway. You're right though if I had to choose between electrically
conductive HSG and a pad, I'd be using a pad! The problem is there are good
HSG's that aren't electrically conductive and do a much better job than a
pad does.

--

Stacey

In article ,
says...
Andrew J wrote:



?? Normal silcone HSG isn't conductive so that would be pretty tough!

The most popular ones like AS(silver?) conduct electricity.

Actually the "most popular" ones aren't conductive. Now if you said "The
most advertised" or "The most expensive/popular with overclockers who read
websites like they are gospel" maybe I'd go with that. :-)

I've tried AS (someone bought some and brought it to me to use on their
system) vs radio shack HSG and there was no difference in temps to amount
to anything. I can't see why anyone would use electrically conductive HSG
anyway. You're right though if I had to choose between electrically
conductive HSG and a pad, I'd be using a pad! The problem is there are good
HSG's that aren't electrically conductive and do a much better job than a
pad does.

If you google back a few years (perhaps even five) there were
people selling the idea of *grounding* the HSF to improve the
processor speed. It's amazing what people will buy! If you have
any doubts about people's gullibility, look no further than
audio-phools, or your fav audio retailer. People are ignorant,
and have lots of money with which to be stupid.

--
Keith

On Sat, 1 May 2004 22:32:51 -0400, KR Williams wrote:

If you google back a few years (perhaps even five) there were
people selling the idea of *grounding* the HSF to improve the
processor speed. It's amazing what people will buy!

That idea is still alive and kicking today. The latest is a grounding
cable on this new brand of power supply available here. Some user
purportedly see better overclocking results when one of the
motherboard screw secures it to the board. My friend pointed out that
the power suppy and board are already grounded in the first to begin
with and had "empirical" data thrown into his face by users who
"benefitted".

Personally I don't know enough to figure why it should help, anybody
has got a better grasp of it? :P
--
L.Angel: I'm looking for web design work.
If you need basic to med complexity webpages at affordable rates, email me
Standard HTML, SHTML, MySQL + PHP or ASP, Javascript.
If you really want, FrontPage & DreamWeaver too.
But keep in mind you pay extra bandwidth for their bloated code