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Lapping the cpu works!! ~results~ - Page 4

post #31 of 47
Quote:
Originally Posted by marc.tulley View Post
seriously though, its there for a reason....to protect the core and spread heat? + i cant really see me dropping another 10C lol
It's for nubs.
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post #32 of 47
marc
I'm not an extreem cooler but I believe AS5 is not recommended with sub zero temps?
    
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post #33 of 47
Lapping helps with all heatsinks, correct? Not just watercool setups?
I also saw that someone mentioned that P4 Prescotts IHS might be soldered on. Does anyone know if this is true?

I don't think any of my amd's have a IHS on them (2600&2800 barton, 2600 thoroughbred b).

but of course, lapping the heatsink is good also.

also, I have some 600 and 1500b rated sandpaper.
Is that too rough? What would I want?

Do you think a hardware store might have what I need? Maybe Fry's does...
    
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post #34 of 47
Planning on doing the same with my C2D once I try my hand at OCing it non-lapped first.
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post #35 of 47
Quote:
Originally Posted by The Duke View Post
marc
I'm not an extreem cooler but I believe AS5 is not recommended with sub zero temps?
no, as5 is bad on sub zero temps. you want to use artic silver ceramique paste. that way it won't freeze on you.

prescott cores are soldered on. gotta blast the core w/ a torch to take it off.
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post #36 of 47
Quote:
Originally Posted by nyder View Post
Lapping helps with all heatsinks, correct? Not just watercool setups?
I also saw that someone mentioned that P4 Prescotts IHS might be soldered on. Does anyone know if this is true?

I don't think any of my amd's have a IHS on them (2600&2800 barton, 2600 thoroughbred b).

but of course, lapping the heatsink is good also.

also, I have some 600 and 1500b rated sandpaper.
Is that too rough? What would I want?

Do you think a hardware store might have what I need? Maybe Fry's does...
Yes, it helps with all

Nope, IHS's were only really added to Athlon 64s, probably to protect them from idiots incorrectly fitting heatsinks, especially now AMD were selling more.

Lapping kits come with loads - the lapping kit I'm getting my hands on has 1/4 sheets of the following grits:

400
600
800
1000
40micron
25micron
20micron
15micron
10micron

You do say, 200 - 300 rubs with each one for the optimal finish

You can buy kits in the UK from www.kustompcs.co.uk, the cheapest being £8.00 inc VAT
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post #37 of 47
Thread Starter 
AS5 is fine for any peltier cooled system
what exactly could go 'bad' anyway, its 99.9% silver
+ AS5 spec says -50 to 130C
which wont be any where near breached with peltier cooling, phase yeah
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post #38 of 47
try sanding up to 800grit then finishing with "jewler's Rouge" Ive polished Aluminum many times with the stuff to look like chrome! you can buy it from almost any hardware store. once the 800grit sand looks uniform it takes a meter of one min to finish it off to look "PERFECT!" just make sure you dont use the rough stuff it will cut through most metals. last time i bought it, they had 1,2,3,4,5 & 6. 1 having a sang blasting effect and 6 doing nothing at all. after sanding to 800, I hit it with the 3 and then the 5.
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post #39 of 47
Lol a lot of people get Phase changers to sub-60C temps, so using Ceramique with thoose is definately something to do...

What exactly is a peltier??? I'm going to re-position my HSF probably and I'm going to lap it and probably my IHS... I just bought my new CPU last week, but my HSF is on kinda funky so I think I'm going to re-position...

Does using a non-stock HSF on any CPU void the warranty??? because I don't want to void a warranty of something I've had less than a month
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post #40 of 47
Thread Starter 
Quote:
Originally Posted by frogy View Post
Lol a lot of people get Phase changers to sub-60C temps, so using Ceramique with thoose is definately something to do...

What exactly is a peltier??? I'm going to re-position my HSF probably and I'm going to lap it and probably my IHS... I just bought my new CPU last week, but my HSF is on kinda funky so I think I'm going to re-position...

Does using a non-stock HSF on any CPU void the warranty??? because I don't want to void a warranty of something I've had less than a month
As some 1 mentioned earlier , its near to impossible to prove you havnt used the stock heatsink, just make sure you stick the stock 1 on and off the cpu to make it look used before you send it back! or they might catch on

A peltier A.K.A TEC is an electrical heat pump, very clever compact device, it uses a strange method that you can setup yourself
eg if you made a circuit with

+ junction > copper wire > iron wire > back to copper wire > - junction

the coper to iron junction will get hot and the iron to copper junction will get cold.So a peltier is basically a series of material changes going back and forth with all the hot junctions on 1 side and all the colder junctions gathhered on the other side of the peltier block . Also works the other way round i belive, i.e applying heat to the copper to iron junction will generate a current in the circuit! weird stuff, learnt about it in thermodynamics @ uni
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