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EPoX MotherBoards EPoX Intel and AMD Motherboards.


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  #1 (permalink)  
Old 7th June, 2003, 02:54 PM
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Lapping the heatsink???

Besides the cpu cooler ,can you lap the procesor?

What method of lapping do you use?

I was gonna take some 400grit sand paper and put it on a flat suface and work it that way.

Is this correct?

thnx

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Old 7th June, 2003, 05:15 PM
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Errr... try 2000+ grit. 400 is a bit too coarse.
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Old 7th June, 2003, 05:16 PM
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Dont be silly.

You will kill your CPU for sure.
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Old 7th June, 2003, 05:19 PM
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Wait!!!!!!!!!!!!!

The TBred 2700+ you have already has a smooth mirror surface, so there's really no need to lap it any further, at the risk of damaging the core.

By the way, is it really beneficial to lap the heatsink? What kind of improvement will I see with a nicely done CPU heatsink?
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Old 7th June, 2003, 05:33 PM
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Quote:
Originally posted by Ian

By the way, is it really beneficial to lap the heatsink? What kind of improvement will I see with a nicely done CPU heatsink?
You can see a 2-5 degree drop in temps when you lap your heat sync. Use at least 600 grit sand paper and use figure 8 montions with it taped to glass.
Rob
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Old 7th June, 2003, 05:55 PM
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There's a link on the 8rda faq site with some close up pictures of the Athlon core, it's anything but flat.

http://www.motherboardfaqs.com/
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Old 7th June, 2003, 06:05 PM
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Re: Lapping the heatsink???

Quote:
Originally posted by stevil
Besides the cpu cooler ,can you lap the procesor?

What method of lapping do you use?

I was gonna take some 400grit sand paper and put it on a flat suface and work it that way.

Is this correct?

thnx

W2Kpro sp3
8RDA+ (3507.BIN)
AMD xp2700 (12.5x185) (Swiftech MCX 462+ SUNON 6500rpm 80mm )
2X512 mb Twinmos DDR3200 (windbond) (7-3-2-2.0 )
Asylum Gf4 T4600 (det 44.03s) (locked at 67mhz)
80 gig Maxtor 7200 (8mb cache) ATA133
ALC-650E AC97On board sound
LiteOn 52x24x52 CDRW
MadDog 16x DVD x 48
ViewSonic 19in PF790 .25
Antec S-1240 Full Tower
Antec 550W True Control ps
SB 3100 cable modem
D-Link DL704 router
NVidia nForce MCD Networking Controller
The AMDs cores do not take to lapping too well since they don't have that protective metal shell like the Intel's have.
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Last edited by Pita^Norf; 7th June, 2003 at 06:39 PM.
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Old 7th June, 2003, 06:24 PM
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you may not kill it, this one ran fine for a long time but there is no benefit, or at least none that i could see
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Old 7th June, 2003, 06:28 PM
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Kat,

That CPU must have 9 lives as I can see that some of core has been chipped away.

The last time I saw chipping on that scale was when I friend of mine killed his xp2100+ after putting it into his vapochill.
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Old 7th June, 2003, 06:34 PM
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other then the lapping this core was in perfect condition until i sold it, the guy i sold it to wasn't very good at changing heatsinks the chips final demise came after he put ASII on the entire chip
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Old 7th June, 2003, 06:35 PM
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If you chip a Tbread like that it will die.

Plus you cant help but rock the CPU as you lap it as you can see on cats pic he has sanded the edges more than the centre so his CPU is LESS flat than it was when he started.

You can get away with lapping heatsinks as there bigger, and you only need the centre to be flat, a bit of extra sanding at the edge dosent matter...
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Old 7th June, 2003, 06:36 PM
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Quote:
Originally posted by K_R
There's a link on the 8rda faq site with some close up pictures of the Athlon core, it's anything but flat.

http://www.motherboardfaqs.com/
Where ?

http://www.motherboardfaqs.com/file....e=cpu_info.htm

Athlons durons and palominos have writing on them that is slightly raised but Tbreads and Bartons are very flat certinaly many many times more flat than anybody without specialised kit could lap.
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Old 7th June, 2003, 06:41 PM
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press softly on 1200 grit paper for up to 20 minutes once you are happy with your initial 600-800 grit job. as the waste clogs the paper the grit effectivly gets even finer. the final result should reflect like a mirror in the middle if you want maximum benefit. coolermaster premium paste may actually be the elusive shin-etsu paste that amd recommends as the only paste to use.
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Old 7th June, 2003, 06:41 PM
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holst the chip ran fine with the corner chipped and it was concave ,so during the lapping process only the edges were in contact with the honing stone i dint use sand paper


(edit) didnt see notice you said tbread holst sorry
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Old 7th June, 2003, 06:55 PM
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Quote:
Originally posted by Holst


Where ?
It should be the first thing you see in the news section:

6/7/03 - Some incredible images of an AMD processor core taken with a microscope can be found in this thread. Ever wonder why thermal paste makes that big of a difference? Take a look!

It's a link to another forum:
http://www.xtremesystems.org/forums/...threadid=12278
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Old 7th June, 2003, 10:26 PM
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wow... like takin pic of sandpaper!!

shows why u need a TIM



sum1 posted on that thread his watercooling setup... he had southbridge, northbridge, cpu, gpu, in SERIAL!!


he must get really low flow. must have good pump. personally i think north and south bridge water cooling is overkill.

old cpu cooler is good enuf for my nbridge!!

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Old 27th April, 2004, 11:01 AM
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ok i need to do this bad to my old TT vol 7+
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