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View Full Version : Quick Q about the aftermath of lapping (specifically drying)

Grimm333
02-18-07, 05:03 PM
I just finished lapping my HSF (AC Freezer Pro 7) and IHS (off C2D). The edges on the IHS were higher up than the center by a lot.. it really wasn't flat. Overall it took me two hours following the sticky here and the the documents in the Easy PC lapping kit. Anywho... the HSF is a little wet and i'm thinking of taking a blowdryer to it in order to dry it. I was very careful with the CPU and trying not to get it wet, however, it's really hard to tell if any water got between any cracks. What is a recommended method for drying the processor or how long should i let it sit under a fan to let it dry? 6/12/24 hours? days?

TIA!!
WonderingSoul
02-18-07, 05:31 PM
I think those things are sealed AFAIK... Dunno though. IF water does get into it I would not recommend putting a hair dryer to it since that may cause it to heat into a vapor within under the IHS and cause issues.
Grimm333
02-18-07, 06:09 PM
I think those things are sealed AFAIK... Dunno though. IF water does get into it I would not recommend putting a hair dryer to it since that may cause it to heat into a vapor within under the IHS and cause issues.

Gotcha. I only did the HSF under the hairdryer. I turned a regular fan on and left the CPU in front of it for an hour now.

I was very cautious lapping the IHS and tried my best to make sure no water went anywhere and minimized water usage while sanding.
nvidiaOCmaster
02-18-07, 07:15 PM
why not just take a paper towel to it?
Grimm333
02-18-07, 07:35 PM
why not just take a paper towel to it?

Sorry, i don't think i wrote my question properly. I'm worried about water getting in the crack underneath the IHS.
IWasHungry
02-18-07, 07:38 PM
What I do is wipe the wet heatsink off with a napkin or something, then blow (Using your mouth, not a fan lol) on the surface the get any napkin residue/lint/whatever off.

Letting it air dry fanless probably isn't such a great idea, since dust will latch onto the water droplets and will stick to the heatsink after drying.

EDIT: Well nevermind, I see you meant something else lol. You can probably just let that air dry for a few (3 maybe) hours if you're concerned
deathman20
02-18-07, 10:01 PM
The amount of lapping I've done I never got any water under the IHS.

If you want to be sure, let it sit out dry for a few days if possible place in a warm dry spot. Thats about the only way to be sure without frying the chip.
OCnewbee
02-20-07, 09:59 AM
The amount of lapping I've done I never got any water under the IHS.

If you want to be sure, let it sit out dry for a few days if possible place in a warm dry spot. Thats about the only way to be sure without frying the chip.

Sorry to jack, but you do wash the cpu off with water in the lapping process, as well as the sandpaper?
deathman20
02-20-07, 10:26 AM
Sorry to jack, but you do wash the cpu off with water in the lapping process, as well as the sandpaper?

Mine was a wet sand processes. So it was always wet and I just whipped it off when done and tossed some cheap vodka on top of it to finish the cleaning process.
hUMANbEATbOX
02-20-07, 10:32 AM
tossed some cheap vodka on top of it to finish the cleaning process.
nooooooooooooooooooooooooo!
largon
02-20-07, 10:35 AM
No need to worry about water under the IHS.
See the attached pic (http://www.ocforums.com/attachment.php?attachmentid=55628&stc=1&d=1171989252) to see why.
bing
02-20-07, 11:12 AM
No need to worry about water under the IHS.
See the to see why.

For C2D yes.

For pre-C2D processor or latest quad/QX like below pic which has the ceramic capacitor arrays surrounding the die, that cpu might turn into expensive key-chain if water and metal particles from the lapping process is in there while you power-up !

55630
Grimm333
02-20-07, 12:29 PM
Thanks for all the replies!!! I let it dry for 12 hours to be on the safe side and fired her up ;)

For C2D yes.

For pre-C2D processor or latest quad/QX like below pic which has the ceramic capacitor arrays surrounding the die, that cpu might turn into expensive key-chain if water and metal particles from the lapping process is in there while you power-up !



I read something similar to the above and that is why was concerned. Thanks for clearing it up bing!!!