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View Full Version : planning on lapping my Stock Heatsink on x1900xtx, what sand paper to buy?

Daveb2012
02-19-2006, 11:37 PM
I went to home depot and went to both sections they sell sand paper and the highest grit they had was 600?? I have read for CPU's 300->400>800>1200 is one popular path to lapping. well i am lapping my heat sink and applying some AS5 to attempt to get better temps. What grit should I go for and does any one know why a huge hardware store such as home depot only had up to 600grit?
IYP
02-20-2006, 05:38 AM
try an autoparts store, they have very very find sand paper
Vapor
02-20-2006, 06:46 AM
I went to home depot and went to both sections they sell sand paper and the highest grit they had was 600?? I have read for CPU's 300->400>800>1200 is one popular path to lapping. well i am lapping my heat sink and applying some AS5 to attempt to get better temps. What grit should I go for and does any one know why a huge hardware store such as home depot only had up to 600grit?FrozenCPU has two lapping kits at decent prices....
[XC] leviathan18
02-20-2006, 09:12 AM
360 400 500 600 800 1000 1200 2000 thats the way i did with my tt bt
nn_step
02-20-2006, 09:30 AM
the highiest Grain count you can get..
[XC] DragonOrta
02-20-2006, 10:02 AM
I thought that Cathar tested a bunch of different grit sandpaper for lapping, and said that 600 or 800 grit was the best when you use it on both surfaces. Was that only for waterblocks?
nn_step
02-20-2006, 10:08 AM
I thought that Cathar tested a bunch of different grit sandpaper for lapping, and said that 600 or 800 grit was the best when you use it on both surfaces. Was that only for waterblocks?
no the idea behind lapping is to make it as smooth as possible.. the coarser the Grain the easier it is to remove material but the finer the grain the smoother surface...Hence you normally start coarse and move to finer and finer grains...
Jarrod1937
02-20-2006, 10:42 AM
yeah, i've been wanting to lap my x800 xl, i'm just worried that since its designed to hug the gpu and ram just right that if i lap it, it won't reach. if i do lap it i will see a large temp decrease though because i'm not sure what they're were thinking but the section that contacts the gpu is very bumpy (small little tiny bumps...). which you wouldn think would be bad for heat transfer. anyone ever lap a x800 and know if it will be fine?
AJF
02-20-2006, 10:49 AM
once you use sandpaper, get a good soft buffer to put the true polish on it if that's what you're looking to do.

Of course, I think it's been shown that not buffing it to a perfect polish is, in fact, superior.
nn_step
02-20-2006, 11:20 AM
once you use sandpaper, get a good soft buffer to put the true polish on it if that's what you're looking to do.

Of course, I think it's been shown that not buffing it to a perfect polish is, in fact, superior.
That is only true if the IHS itself is has a poor Polish.. the best contact is between two Well Lapped surfaces...
AJF
02-20-2006, 06:22 PM
It's possible to apply a relatively rough finish to both sides to do that. And I said relatively, because if you run really rough sandpaper over it...well, don't.
Daveb2012
02-21-2006, 04:29 AM
FrozenCPU has two lapping kits at decent prices....

do you have a link, im just going to go with a kit.
nn_step
02-21-2006, 09:01 AM
do you have a link, im just going to go with a kit.
as you desire http://www.frozencpu.com/lag-01.html

ps you just needed to type lapping into the search bar...
manomanx2
02-21-2006, 06:08 PM
http://easypckits.com/

Right there is what you want.
Daveb2012
02-22-2006, 12:58 AM
as you desire http://www.frozencpu.com/lag-01.html

ps you just needed to type lapping into the search bar...

whats the point of a forum if I cannot communicate, espeically when some one suggest a product to me and I ask for a link. I wasn't even asking you. why do you think the search button is so effective. from members communicating, building a data base of info. I'm not sure why but you have always seem to have some thing negative to say to my post. I have been noticing now for the past couple of month's. I don't need to be told "PS use the search bar" searching for the word lapping would not have given me a direct link to "frozen cpus" website section to purchase a lapping kit. I already did a search on the topic of lapping before I posted and all I could find was inconsistent info on the ideal grit's to use, and stages to start and finish, so I made my own thread. thanks for the link any way.

http://easypckits.com/

Right there is what you want.

I ordered 2 kits for 9.00 total shipped, pretty good deal, much cheaper then buying the sand paper individually at hardware store.