mirror != flatQuote:
Originally Posted by MaK2000
flat is what you want
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mirror != flatQuote:
Originally Posted by MaK2000
flat is what you want
Mmmk. I already checked mine with a piece of glass. If mirror won't matter than I am fine like mine is. Not as pretty to look at as these though. Heh. I was thinking of buffing it with a dremel but would hate to leave a gouge to have to flatten back out.
to elaborate mirror surface has less surface area making thermal compound less effective
I plan on lapping my IHS as soon as I get off of my butt and buy some paper. I am planning on dry sanding. I'm going to cover the back of the CPU with the little black piece that comes in the retail box. I have read tons about this on lots of forums, and have decided dry is easier with the same results. I am planning on 400 ,600, 800, 1000, or something like that. My Zalman 9500 has a mirror finish on it, seriously, I could shave in it. But I am going to mark it up with a sharpie and run it over some fine grit 2000 paper and see if the sharpie markings rub right off. If not, a lapping I will go in it also. I don't recommend metal polish either. I am going to clean everything off every once in a while with some compressed air, do the same at the end, and then use the AS cleaner and polish. I'll clean up the back of the CPU, just in case also. I am excited to see what happens. I know a guy that got a 11C drop in temps simply by lapping his IHS to an 800 grit flat surface.
Whoever said that is wrong, use water and do not press on the chip at all - 2000 grit or finer.Quote:
Originally Posted by MaK2000
Did you start sanding your thumb or something?:DQuote:
Originally Posted by Ad1tya
Nice job. That CPU definitely needed it. I can't believe that first pic!! That is one hell of a concave IHS you had there.
I lapped mine a couple weeks ago with 320, 800, 1500 grit. I found that in the end a light sanding of 1500grit DRY left me with the best finish. It was very close to mirror finish. Unfortunately i didn't have my digital camera on hand to take a pic. I'll be damned if i'm going to remove my scythe infinity after 3 removals so far. Maybe when i get my quad i'll take a pic of it.
lowering the temps is the only benefit from lapping??? the decrease in the temps is worth it?? and how many degrees are we talking about??
In a case like the user above ^^^. See that copper border? The center of the IHS on the chip wasn't making good contact with the heatsink. Totally worth doing. If your temps seem unusually high there's probably a reason for it.Quote:
Originally Posted by miesso
Well lapped both CPU and HS last night. CPU was really off in the center. After initial sanding I had a copper border so cpu was really off in the centre.
Took me about 20 mins lapping the CPU and about 10 for the HS as it was fine really. Used a hair dryer to dry cpu and about an hour's air drying.
Have to say I'm really impressed with the decrease in temps.
Under XP all 4 cores idle at 37/36/36/35 which was pretty similiar to what I originally getting under XP. However decoding a movie which originally had the CPU hitting upto 65c now only hits 51c.
Under Vista CPU now ides at 41/40c which is a 8c drop. Under load it now hits only 53c as opposed to 68c.
So overall I'm very happy with the results.
Not even close to as shiny as most in this thread but I thought I'd share my first one.
http://boxcarsolutions.com/misc/lap2.jpg
http://boxcarsolutions.com/misc/lap5.jpg
That's because a chip's never idle in Vista. ;) Actually my HDD freaks out the most.Quote:
Originally Posted by Airblazer™
And you get a shiny looking chip to reflect off ordinary household objects and share in a forum on the interwebs! My favorite's the one out the window a few pages back.Quote:
Originally Posted by miesso
As long as it's flat, right? :DQuote:
Originally Posted by Boxcar
Ahaha.. No.. I didnt sand that thumb.Quote:
Originally Posted by GripS
I sanded my Right hands, Middle finger and Thumb a bit. Frigging didnt stop bleeding. :(. Yea, it was my first lap :P.
The Left hand thumb, you can see band-aided, is due to touching Hot tubes :@. Had to heat them in almost boiling water, and after like 5-6 fit's, the skin on my thumb tore off. Luckily, it didnt bleed, but the exposed skin on the thumb, was tender as hell.
Any who.. I started lapping with 400 Grit. The 1st Pic you see is after 400 Grit. Moved on the 600 Grit, got the 2nd pic from after 600 Grit.
Moved to 1000 Grit for a little sanding and flattening.
Then the 3rd and 4th pics are results after 2000 Grit, Wet sanding.
I know what that is like I get "grip-burn" from my skateboard grip tape which is pretty much like sandpaper all the time. The worst thing about it is it's not just a cut it like stings the whole time. Pretty painful, haha.Quote:
Originally Posted by Ad1tya
^^ Lol, you bet.
I couldnt really apply much pressure with my 2 fingers for 2 days.
Here's my very first attemp done ( dry ) not bad if a say so myself all by hand no polishing tools lol.
http://img406.imageshack.us/img406/4...elapps9.th.jpg
My lapped Q6600 g0
http://img142.imageshack.us/img142/4...s006ip1.th.jpg
this was my first jap job on an ES E6700 (just took a pic b4 i posted the CPU abroad)
Sweet lookin procs guys
i think the success of this thread needs to be realized more :) *BUMP*
Quote:
Originally Posted by AndyM
WAYYY to much paste man!!!!
2 little drops in the corners is all u need. Trust me your loosing about 30% efficiency with that much on there.
I got an 11C drop by lapping to 15 Microns :p:Quote:
Originally Posted by chavalcito
before
http://img.photobucket.com/albums/v7...PIC_0003-6.jpg
after
http://i41.photobucket.com/albums/e2...k/DSC00010.jpg
http://img.photobucket.com/albums/v7...PIC_0002-7.jpg
(last image is rather big)
Temp drop was arround 10*c along with a lapped tuniq 120 heatsink, was lapped for me by a friend, he lapped it normally then ended up using a polishing kit that is used for fighter planes :D
What? No more lapped IHS...:confused:
forgotten?
let's go up!:)
Don't have the pics in the process, I used just the lapping paste/polish...
Therefore I have silver reflection
Pretty big pic, sry
http://www.imagesforme.com/out.php/i15572_DSC02404.JPG