Where do you get your cpu and hs lapping sandpaper?

[tranceport]

Well... Where do you get yours?

 

[aigomorla]

autozone or pepboys.


the autstores have the 1000 ->2000 grit sp.

i dont think hardware stores carry them.

 

[JAG87]

canadian tire woooooooooooooooooooooot

 

[covert24]

yea regular hardware stores and places like home depot and lowes don't carry the higher grit sandpaper. you can find some 3M stuff online in a bunch of places and that seems to be some of the best stuff.

 

[Billb2]

Easy PC Kits:
http://www.easypckits.com/

 

[Quiksilver]

http://www.frozencpu.com/produ...tsink_Lapping_Kit.html

http://www.svc.com/lapkit-p.html

 

[crontab]

ace hardware

i believe someone stated this...

they sell sand paper by the sheet ($1-$2 each sheet) and cover a whole range of grits.

 

[Idontcare]

Do NOT order those lapping kits. I did and they suck ASS. Itty bitty tiny useless pieces of sandpaper good for lapping just about nothing, unless you like making 1" strokes 5000 times to lap your IHS.

Go to Autozone, they are fricken everywhere in the US, and get yourself the wetdry imperial sandpaper. They carry full-sheet 220/400/800/1000 grit packs (4 sheets per pack, one pack per grit) for $3.99.

I ultimately did that after wasting time, money, and more time on those complete POS kits you can order online. If you check them out pay attention to the size of the paper and "flat surface" provided.

 

[aigomorla]

Originally posted by: Idontcare
Do NOT order those lapping kits. I did and they suck ASS. Itty bitty tiny useless pieces of sandpaper good for lapping just about nothing, unless you like making 1" strokes 5000 times to lap your IHS.

Go to Autozone, they are fricken everywhere in the US, and get yourself the wetdry imperial sandpaper. They carry full-sheet 220/400/800/1000 grit packs (4 sheets per pack, one pack per grit) for $3.99.

I ultimately did that after wasting time, money, and more time on those complete POS kits you can order online. If you check them out pay attention to the size of the paper and "flat surface" provided.

heh....

This is defiitely good info

 

[Idontcare]

Here is a side-by-side photo so you can see what I am talking about.

http://i272.photobucket.com/al...cket/Bang_for_Buck.jpg

Which would you rather try and lap your IHS with? The folks at SVC ought to be ashamed trying to sell that crap as a lapping kit.

The frozenCPU lap kit is only marginally less absurd. You get a whole extra 2" to play with...

 

[n7]

Originally posted by: JAG87
canadian tire woooooooooooooooooooooot

Yup, that's where mine came from.

 

[Phunk0ne]

Online lapping kits FTL!!
I went to my local hardware store, got me 2 sets each grit, and cut them in 3 nice strips. Used a carry on bathroom mirror and took it out of it plastic casing and et voila! cheap lapping kit. Idontcare is absolutely right, those kits you buy online from so called overclocking online stores are the be shot between the legs for selling such garbage!

 

[covert24]

is it really necessary to go from 400-600-800-1000-and so on? or can you just do like 600-1000-something higher? i know the lower grit is to take the nickel off but does it really take that much of a gradual incline to do so?

 

[larciel]

off topic, but what method do you use to check the flatness before you move onto next grit paper?

 

[Billb2]

Draw an "X" on what you're lapping with a fat, black marker.

 

[Billb2]

Originally posted by: covert24
is it really necessary to go from 400-600-800-1000-and so on? or can you just do like 600-1000-something higher? i know the lower grit is to take the nickel off but does it really take that much of a gradual incline to do so?

From Easy PC Kits:

"standard wet/dry sandpaper uses silicon carbide as the abrasive. SC has a blocky crystalline structure; as it wears, the grains are friable and fracture, exposing new cutting edges. This allows SC paper to have long life and a consistent ?cut?. The premium paper does NOT use silicon carbide; the abrasive grains instead do not fracture as easily but rather wear down in use. This feature means that the paper effectively changes the grit level and sands finer as you use it. The 10 micron paper is officially equivalent to about 1800 grit SC paper, but sands more like 2500-3000 grit paper. "

Autozone got any 1800 grit paper?

 

[ch33zw1z]

Autozone, got 600 and 1000. I saw up to 2000 then quit looking.

 

[Gillbot]

PPG Paint Shop is where I get mine.

 

[Idontcare]

Originally posted by: covert24
is it really necessary to go from 400-600-800-1000-and so on? or can you just do like 600-1000-something higher? i know the lower grit is to take the nickel off but does it really take that much of a gradual incline to do so?

If you want to take the nickle plating off, and get the IHS all the way down to copper then I recommend starting with 220 grit. With 220 grit you are still looking at 15-20min of lapping before all the nickle is gone (more or less time depending on how much you press down during sanding). I would certainly feel sorry for anyone who laps their CPU to copper starting with 400 or worse 600 grit...cause that is gonna take some time!

How gradual of steps you take as you increment the grits is entirely up to you. Once the IHS is lapped to 220 grit all the way down to copper it is flat. The only reason you are lapping with higher grits at that point is to remove the scratches caused by the 220 grit ...replacing deep and wide scratches from 220 grit with shallower and narrower ones from 400 or 600 grit will increase the thermal conductivity of the IHS.

So why not go from 220 to 1000 or 220 straight to 2000? No reason other than time. Removing those 220 grit scratches with 2000 grit paper is gonna take you a hell of a lot of time. Removing 220 grit scratches with 400 grit paper is a lot quicker (naturally) but leaves you with only slightly smaller 400 grit induced scratches. 600 grit replaces those, etc.

One an IHS is flat with 220 grit I go to 400 grit (4 rotations of 90 degrees each) only long enough to visibly remove the 220 grit scratches (place an X on the IHS with a sharpie pen and polish till the X is gone). Then I go to 800 grit and repeat. Then I finidh with 1000 grit but that is personal preference and no need to go any higher than 800 unless you want to see that mirror like finish.

Remember...you are not using 400/800/1000 grits to make your IHS flat...these grits are merely used to remove surface scratches. To make your IHS flat you can do that with 220 grit.