Walk Through : Lapping Your HSF - Page 4

vladmire · Apr 3, 2009, 04:43 PM

it's better than the machine's job of lapping it.

Adrienspawn · Apr 26, 2009, 03:51 PM

Just so people know, lapping is more about making it flat than shiny. You can use up to just 600 grit and it will perform as well as 3500 grit. You can have a mirror surface, but it doesn't mean its flat. Make sure to lap on glass or a really flat surface. Not sure if its been said already, just thought I'd mention it

mike047 · Apr 26, 2009, 04:04 PM

This is what I use for a flat lapping surface. They have free shipping occasionally.

http://www.grizzly.com/products/9-x-...-2-Thick/G9649

I use these Without holes for the Arctic coolers.

http://www.use-enco.com/CGI/INSRIT?P...AKA=SM240-0369

Adrienspawn · Apr 26, 2009, 04:13 PM

Quote:

Originally Posted by mike047

This is what I use for a flat lapping surface. They have free shipping occasionally.

http://www.grizzly.com/products/9-x-...-2-Thick/G9649

I use these Without holes for the Arctic coolers.

http://www.use-enco.com/CGI/INSRIT?P...AKA=SM240-0369

When I think granite I think roads lol. You sure that's really flat, not a bit rough like the lapping paper? Is has to be flat and smooth.

But from the pics it looks smooth.

Jun 1, 2009, 05:03 PM

how do i do this to the cpu i mean can't the pins get bent while doing it ? :-s

mike047 · Jun 1, 2009, 05:38 PM

Quote:

Originally Posted by Adrienspawn

When I think granite I think roads lol. You sure that's really flat, not a bit rough like the lapping paper? Is has to be flat and smooth.

But from the pics it looks smooth.

Normally "granite" plates are used for inspection purposes in machine shops, fabrication labs, etc.

They are graded by flatness;
http://www.angrave.com/catalog/SurfacePlates.html

Those are inexpensive so I would guess that they are withing .0001[or less] flatness all over[ a human hair is .003-.004 thick. The surface finish[roughness] is a smooth as the proverbial baby's butt.

I have as part of my trade as a toolmaker used surface plates for nearly 40 years and I'll tell you they are "flatter" and smoother than your lap jobs.

mike047 · Jun 1, 2009, 05:40 PM

Quote:

Originally Posted by DreamSeller

how do i do this to the cpu i mean can't the pins get bent while doing it ? :-s

If your cpu has pins, place the black foam from your packaging on the pins to protect them...don't get brutal with it and you should have no problem.

Jun 1, 2009, 05:50 PM

Quote:

Originally Posted by mike047

If your cpu has pins, place the black foam from your packaging on the pins to protect them...don't get brutal with it and you should have no problem.

thanks

i'll give it a try tonight )

Bo_Fox · Jan 15, 2010, 01:43 PM

There are plenty of lapping videos on Youtube. Just type in TRUE lapping or something like that. A video really helped me lap my IFX-14.. whew my hands almost gave out with several cuts even after wearing gloves (took over 1 hour).

sneekypeet · Feb 7, 2010, 05:32 AM

Had a bit of time and I figured my i7 860 could use a bit of a lap job since I got it used.

Original candidate:

About 5-10 minutes with 600 grit to level the field (bit round in the middle):

About the same time on 800 grit:

1000:

1500:

I missed the 2000 grit image in excitement of polishing it a bit

reflection on my work:

What's it worth? so far with a higher ambient temperature (32 degrees in the case versus the 29 I tested it in before I lapped it), tests show a 3-4 degree drop across all 4 cores under Prime95 for 30 minutes.

p_o_s_pc · Feb 7, 2010, 05:39 AM

I did this awhile ago so its kinda older(about a year ago) this is 2k grit polished with rubbing compound and then shined with lemon juice (heard that worked) then cleaned with 70% alcohol
I don't even remember what CPU is what but one is a X2 5kBE the other is a X2 4850e

this one i know is the 5kBE

Cold Storm · Feb 7, 2010, 09:46 PM

great step-by-step Sneeky.

Pos, that's good work man!

copenhagen69 · Feb 7, 2010, 10:20 PM

Quote:

Originally Posted by sneekypeet

Had a bit of time and I figured my i7 860 could use a bit of a lap job since I got it used.

Original candidate:
http://img.techpowerup.org/100207/DSC01773.jpg

About 5-10 minutes with 600 grit to level the field (bit round in the middle):
http://img.techpowerup.org/100207/DSC01776.jpg

About the same time on 800 grit:
http://img.techpowerup.org/100207/DSC01778.jpg

1000:
http://img.techpowerup.org/100207/DSC01780.jpg

1500:
http://img.techpowerup.org/100207/DSC01782.jpg

I missed the 2000 grit image in excitement of polishing it a bit

reflection on my work:
http://img.techpowerup.org/100207/DSC01786515.jpg

What's it worth? so far with a higher ambient temperature (32 degrees in the case versus the 29 I tested it in before I lapped it), tests show a 3-4 degree drop across all 4 cores under Prime95 for 30 minutes.

very nice job!
how long overall did it take you? about 10 mins for each grit?

sneekypeet · Feb 7, 2010, 10:23 PM

yup just over an hour to get from the first image to the last

copenhagen69 · Feb 7, 2010, 10:25 PM

thats not bad at all for a 3-4c drop ... ive spent a lot more time on less of a drop haha

Taz100420 · Mar 19, 2010, 09:59 PM

Quote:

Originally Posted by p_o_s_pc

I did this awhile ago so its kinda older(about a year ago) this is 2k grit polished with rubbing compound and then shined with lemon juice (heard that worked) then cleaned with 70% alcohol
I don't even remember what CPU is what but one is a X2 5kBE the other is a X2 4850e
http://i166.photobucket.com/albums/u...c/S5030835.jpg
http://i166.photobucket.com/albums/u...S5030836-1.jpg
this one i know is the 5kBE
http://i166.photobucket.com/albums/u...c/S5030836.jpg

Makes me wanna lap my 5000+BE....and maybe finish the shine job on my heatsink. I have an aluminum heatsink and I took some 500 grit to it and got most the machine lines out and hit it with 1000 to get it smooth and even the took the 0000 steel wool and smoothed it out. I thought I had some 1500 and 2000 grit but it was used on the motorcycle sadly so I had to work with what I had left lol Temps are about 5F-10F cooler on load

p_o_s_pc · Mar 19, 2010, 11:17 PM

Quote:

Originally Posted by Taz100420

Makes me wanna lap my 5000+BE....and maybe finish the shine job on my heatsink. I have an aluminum heatsink and I took some 500 grit to it and got most the machine lines out and hit it with 1000 to get it smooth and even the took the 0000 steel wool and smoothed it out. I thought I had some 1500 and 2000 grit but it was used on the motorcycle sadly so I had to work with what I had left lol Temps are about 5F-10F cooler on load

Go for it man.. Just be careful that you don't bend the pins. Its really easy to bend them

Taz100420 · Mar 20, 2010, 01:58 AM

Quote:

Originally Posted by p_o_s_pc

Go for it man.. Just be careful that you don't bend the pins. Its really easy to bend them

I have a old dead AM2 mobo that I can cut the socket out of so it protects the pins while sanding

erixx · Jan 15, 2011, 03:13 PM

Noctua website says that with nowadays 'sticky' thermal grease, lapping is not needed. I believe they know their stuff. If this is true, maybe this can be un-stickied to start evangelizing to not lap anymore?

silkstone · Jan 15, 2011, 04:03 PM

sticky thermal grease wouldn't stop the cpu being convex/concave.

erixx · Jan 15, 2011, 05:20 PM

good issue, but rare, rarisimo i would say

silkstone · Jan 16, 2011, 03:37 AM

I'm sure what you read is referring to lapping the HSF, which with the quality of some of the higher end HSFs isn;t needed anyway. But there is a lot of useful information about CPU lapping. Which while isn't needed, really does help with temps.

user21 · Jun 10, 2011, 04:33 AM

this is gud, how much time did you took to finish up ??

Apr 3, 2009, 04:43 PM	#76
vladmire Join Date: Apr 2009 Posts: 89 (0.06/day) Thanks: 1 Thanked 18 Times in 17 Posts System Specs	it's better than the machine's job of lapping it. __________________ CPU-Z validation sig pics temporarily blocked

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Apr 26, 2009, 03:51 PM	#77
Adrienspawn Join Date: Apr 2009 Location: Montreal, Quebec, CA Posts: 14 (0.01/day) Thanks: 1 Thanked 0 Times in 0 Posts	Just so people know, lapping is more about making it flat than shiny. You can use up to just 600 grit and it will perform as well as 3500 grit. You can have a mirror surface, but it doesn't mean its flat. Make sure to lap on glass or a really flat surface. Not sure if its been said already, just thought I'd mention it __________________ Hey everyone! Native from OCN here! E8600 @ 4.4ghz on lapped TRUE with San Ace 1011 fan 780i, pencil modded Cosmos S, modded

System Name:	Silence is a value
Processor:	E8600 @ 4.4ghz, 1.304V, 1.2125 VID
Motherboard:	EVGA 780i, pencil mod, WC'ed
Cooling:	TRUE or Apogee GTX
Memory:	4GB Mushkin
Video Card:	GTX285 w/ HR-03 GTX
Hard Disk:	Raptor 300GB + Seagate 1TB Raid 0's
CRT/LCD Model:	Samsung 24'' 245BW
Case:	Cosmos S
PSU:	1200W Thermaltake Toughpower
Software:	Vista Ultimate 64
Benchmarks:	22700 in Vantage

Apr 26, 2009, 04:04 PM	#78
mike047 Join Date: Apr 2009 Location: Zirconia NC usa Posts: 456 (0.30/day) Thanks: 147 Thanked 171 Times in 112 Posts System Specs	This is what I use for a flat lapping surface. They have free shipping occasionally. http://www.grizzly.com/products/9-x-...-2-Thick/G9649 I use these Without holes for the Arctic coolers. http://www.use-enco.com/CGI/INSRIT?P...AKA=SM240-0369 __________________ mike Disclaimer; I am old and frequently forget, so this may or may not be accurate...but to the best of my knowledge it is what I recall. MY HEAT/MY EBAY Last edited by mike047; Apr 26, 2009 at 04:12 PM.

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Hard Disk:	yes
PSU:	Cheap Rosewill/Mac
Software:	2-XP32/1-XP64/12-Ubuntu/1-Mac
Benchmarks:	No benchies, just a cruncher:)

Jun 1, 2009, 05:03 PM	#80
DreamSeller Guest Posts: n/a (0/day)	how do i do this to the cpu i mean can't the pins get bent while doing it ? :-s

Jan 15, 2010, 01:43 PM	#84
Bo_Fox Banned Join Date: May 2009 Location: Barack Hussein Obama-Biden's Nation Posts: 499 (0.34/day) Thanks: 166 Thanked 59 Times in 39 Posts System Specs	There are plenty of lapping videos on Youtube. Just type in TRUE lapping or something like that. A video really helped me lap my IFX-14.. whew my hands almost gave out with several cuts even after wearing gloves (took over 1 hour).

System Name:	Flame Vortec Fatal1ty (rig1), UV Tourmaline Confexia (rig2)
Processor:	2 x Core i7's 4+Gigahertzzies
Motherboard:	BL00DR4G3 and DFI UT-X58 T3eH8
Cooling:	Thermalright IFX-14 (better than TRUE) 2x push-push, Customized TT Big Typhoon
Memory:	6GB OCZ DDR3-1600 CAS7-7-7-1T, 6GB for 2nd rig
Video Card:	8800GTX for "free" S3D (mtbs3d.com), 4870 1GB, HDTV Wonder (DRM-free)
Hard Disk:	WD RE3 1TB, Caviar Black 1TB 7.2k, 500GB 7.2k, Raptor X 10k
Optical Drive:	Plextor, external Blu-ray
CRT/LCD Model:	Sony GDM-FW900 24" CRT oc'ed to 2560x1600@68Hz, Dell 2405FPW 24" PVA (HDCP-free)
Case:	custom gutted-out painted black case, silver UV case, lots of aesthetics-souped stuff
Sound Card:	Sonar X-Fi MB, Bernstein audio riser.. what??
PSU:	OCZ Fatal1ty 700W, Iceberg 680W, Fortron Booster X3 300W for GPU
Software:	2 partitions WinXP-32 on 2 drives per rig, 2 of Vista64 on 2 drives per rig
Benchmarks:	5.9 Vista Experience Index... yay!!! What??? :)

Feb 7, 2010, 05:32 AM	#85
sneekypeet Unpaid Babysitter Join Date: Apr 2006 Posts: 19,023 (7.31/day) Thanks: 3,041 Thanked 5,488 Times in 3,951 Posts System Specs	Had a bit of time and I figured my i7 860 could use a bit of a lap job since I got it used. Original candidate: About 5-10 minutes with 600 grit to level the field (bit round in the middle): About the same time on 800 grit: 1000: 1500: I missed the 2000 grit image in excitement of polishing it a bit reflection on my work: What's it worth? so far with a higher ambient temperature (32 degrees in the case versus the 29 I tested it in before I lapped it), tests show a 3-4 degree drop across all 4 cores under Prime95 for 30 minutes. __________________ Hers: ASUS Maximus V Gene / i7 3770K / Swiftech H220 / 4X8GB Corsair Dominators / ASUS GTX660 / Corsair AX-760 / Windows 7 64bit / Fractal Design ARC Midi R2 Test: Gigabyte Z68X-UD4-B3 / i7 2600K / A lot Of Coolers / Ripjaws Currently / HIS HD7950 IceQ Turbo / Silverstone SST-ST85F-G / Windows 7 64bit / InWin D-Frame Limited Edition

System Name:	His
Processor:	Intel i7 3770K Cooled with Swiftech Apogee Drive II
Motherboard:	Asus Maximus V Extreme
Cooling:	Swiftech MCR-320 Cooled With Corsair SP120 Fans
Memory:	4X4GB Corsair Dominator Platinum 2666 C11
Video Card:	Asus GTX680 Direct Cu II TOP
Hard Disk:	Corsair Force GT 180GB / Samsung Spinpoint F1 1TB
Optical Drive:	- - - - - - -
CRT/LCD Model:	Samsung 40" 120hz LCD
Case:	SilverStone Temjin TJ11
Sound Card:	Realtek on board > Sony receiver > Cerwin Vega's
PSU:	Corsair AX1200
Software:	Windows 7 Ultimate 64

Feb 7, 2010, 05:39 AM	#86
p_o_s_pc F@H&WCG addict Join Date: May 2007 Location: Newark ohio Posts: 9,916 (4.48/day) Thanks: 3,158 Thanked 2,215 Times in 1,685 Posts System Specs	I did this awhile ago so its kinda older(about a year ago) this is 2k grit polished with rubbing compound and then shined with lemon juice (heard that worked) then cleaned with 70% alcohol I don't even remember what CPU is what but one is a X2 5kBE the other is a X2 4850e this one i know is the 5kBE __________________ crunching for TPU on 30 CPU Threads + 688 Cuda cores More to come

System Name:	el'lappy\|Cruncher \| Cruncher 2
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Motherboard:	some Acer \| Asus P8Z77-V Pro \|Gigabyter GA-M61p-S3
Cooling:	dual 80mm cooling fan \| Xiggy S1283 (WC'ing OTW) \|cheapo
Memory:	2x2gb ddr3 \| 2x2gb Ripjaws 1600 \|4x512mb D9s
Video Card:	onboard \| Asus DirectCU GTX460 1GB(+GTX 465 STB) \|8800GTS
Hard Disk:	Momuntus xt 320gb \|Kingston Hyper X 120gb SATA III\|500gb WD
Optical Drive:	DVD-RW \| None (STB blu-ray player,maybe) \|DVD-RW Lightscribe
CRT/LCD Model:	17in \| 40" 1080P HD TV
Case:	lappy case \| open air ATM (STB CM HAF XB) \|none yet
Sound Card:	onboard \| onboard \| onboard
PSU:	Dell powerbrick with Acer end \| Antec EW 650w \|Antec SP 350w(upg.soon)
Software:	Windows 7 Ult. 64bit---->------->

Feb 7, 2010, 09:46 PM	#87
Cold Storm Battosai Join Date: Oct 2007 Location: In a library somewhere on this earth Posts: 10,566 (5.14/day) Thanks: 4,242 Thanked 3,047 Times in 2,493 Posts System Specs	great step-by-step Sneeky. Pos, that's good work man! __________________ The only way success is before work, is in the dictionary Support for the mind. Support for your hardware

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Feb 7, 2010, 10:23 PM	#89
sneekypeet Unpaid Babysitter Join Date: Apr 2006 Posts: 19,023 (7.31/day) Thanks: 3,041 Thanked 5,488 Times in 3,951 Posts System Specs	yup just over an hour to get from the first image to the last __________________ Hers: ASUS Maximus V Gene / i7 3770K / Swiftech H220 / 4X8GB Corsair Dominators / ASUS GTX660 / Corsair AX-760 / Windows 7 64bit / Fractal Design ARC Midi R2 Test: Gigabyte Z68X-UD4-B3 / i7 2600K / A lot Of Coolers / Ripjaws Currently / HIS HD7950 IceQ Turbo / Silverstone SST-ST85F-G / Windows 7 64bit / InWin D-Frame Limited Edition

Feb 7, 2010, 10:25 PM	#90
copenhagen69 Join Date: Jan 2010 Location: USA Posts: 3,445 (2.84/day) Thanks: 1,520 Thanked 1,210 Times in 1,156 Posts System Specs	thats not bad at all for a 3-4c drop ... ive spent a lot more time on less of a drop haha

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Jan 15, 2011, 03:13 PM	#94
erixx Join Date: Mar 2010 Location: Moorsoldaten barracks Posts: 2,183 (1.89/day) Thanks: 711 Thanked 312 Times in 250 Posts System Specs	Noctua website says that with nowadays 'sticky' thermal grease, lapping is not needed. I believe they know their stuff. If this is true, maybe this can be un-stickied to start evangelizing to not lap anymore?

System Name:	SpaceTranslator
Processor:	i7 3770K@4400 24/7
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Cooling:	Noctua C14
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Jan 15, 2011, 04:03 PM	#95
silkstone Join Date: Nov 2008 Location: HCM Vietnam Posts: 2,187 (1.31/day) Thanks: 323 Thanked 346 Times in 289 Posts System Specs	sticky thermal grease wouldn't stop the cpu being convex/concave. __________________ Thanks to BradleyKZN for polishing my sig “oooooooooooh fire!!! and girls...GIRLS and fire!!!!!!! oooooooooooooh runz around clapping hands together” -Marineborn

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Jan 15, 2011, 05:20 PM	#96
erixx Join Date: Mar 2010 Location: Moorsoldaten barracks Posts: 2,183 (1.89/day) Thanks: 711 Thanked 312 Times in 250 Posts System Specs	good issue, but rare, rarisimo i would say

Jan 16, 2011, 03:37 AM	#97
silkstone Join Date: Nov 2008 Location: HCM Vietnam Posts: 2,187 (1.31/day) Thanks: 323 Thanked 346 Times in 289 Posts System Specs	I'm sure what you read is referring to lapping the HSF, which with the quality of some of the higher end HSFs isn;t needed anyway. But there is a lot of useful information about CPU lapping. Which while isn't needed, really does help with temps. __________________ Thanks to BradleyKZN for polishing my sig “oooooooooooh fire!!! and girls...GIRLS and fire!!!!!!! oooooooooooooh runz around clapping hands together” -Marineborn

Jun 10, 2011, 04:33 AM	#98
user21 Join Date: Jun 2011 Location: Peshawar Posts: 281 (0.39/day) Thanks: 2 Thanked 20 Times in 18 Posts	this is gud, how much time did you took to finish up ??

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