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are you supposed to lap direct touch heatsinks?
post #2 of 18
2/11/12 at 10:49am
- McMogg
- 333mhz
-

- Joined: May 2011
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No, as the picture indicates, lapping a Direct-touch Heatsink will break into the hollow heatpipes.
The heatpipes use vapour to transfer heat, and are therefore hollow, if you break into them, you can kiss your temps goodbye
EDIT: And in now-a-day tech, there's no point to lapping a CPU or a Direct Touch Heatsink, as they're produced to a much higher degree of accuracy, meaning they are no longer so warped, you'd only lap anything if you were seriously trying to drop that 1-2*C and had something riding on it.
The heatpipes use vapour to transfer heat, and are therefore hollow, if you break into them, you can kiss your temps goodbye

EDIT: And in now-a-day tech, there's no point to lapping a CPU or a Direct Touch Heatsink, as they're produced to a much higher degree of accuracy, meaning they are no longer so warped, you'd only lap anything if you were seriously trying to drop that 1-2*C and had something riding on it.
V-Card.
(19 items) |
| CPU | Motherboard | Graphics | RAM |
|---|---|---|---|
| i5 760 | Asus P7P55D Pro | Palit GTX460 Sonic-board | 8 GB Corsair Vengance Blue |
| Hard Drive | Hard Drive | Hard Drive | Cooling |
| 2TB Spinpoint F3 | 500GB Spinpoint F3 | 64GB Kingston SSDNow V100 | EK EN HF Supreme Nickel & Acetal |
| Cooling | Cooling | Cooling | OS |
| Phobya G-Changer 420 Rad | 3x 140mm High Speed Yate Loons | Alphacool Vario D5 | Windows 64Bit Ultimate |
| Monitor | Power | Case | |
| Asus 27" 1080p | XFX 650W XXX Edition | Xigmatek Elysium (Silver + Window) | |
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V-Card.
(19 items) |
| CPU | Motherboard | Graphics | RAM |
|---|---|---|---|
| i5 760 | Asus P7P55D Pro | Palit GTX460 Sonic-board | 8 GB Corsair Vengance Blue |
| Hard Drive | Hard Drive | Hard Drive | Cooling |
| 2TB Spinpoint F3 | 500GB Spinpoint F3 | 64GB Kingston SSDNow V100 | EK EN HF Supreme Nickel & Acetal |
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| Phobya G-Changer 420 Rad | 3x 140mm High Speed Yate Loons | Alphacool Vario D5 | Windows 64Bit Ultimate |
| Monitor | Power | Case | |
| Asus 27" 1080p | XFX 650W XXX Edition | Xigmatek Elysium (Silver + Window) | |
| View all | |||
post #3 of 18
2/11/12 at 10:50am
- B!0HaZard
- HaZardously high overclocks are what I do
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Some people do lap them, but it's risky.
Still a budget build
(16 items) |
Notebook - Acer 4820TG
(13 items) |
| CPU | Motherboard | Graphics | RAM |
|---|---|---|---|
| i5 2500K @ 4.7 GHz | MSI P67A-GD55 (B3) | Zotac GTX 680 2 GB | 2x2 + 2x4 GB Kingston DDR3 @ 1600 MHz |
| Hard Drive | Optical Drive | OS | Monitor |
| |64 GB Crucial M4| + |1 TB Hitachi 7K1000.B| | LG GH22NS30 Super Multi | Windows 7 Home Premium 64-bit | BenQ XL2420T - 1920x1080 - 120 Hz |
| Keyboard | Power | Case | Mouse |
| Razer Tarantula | Corsair VX550W | Fractal Design Define XL | Logitech G500 |
| Mouse Pad | Audio | Audio | Audio |
| SteelSeries QcK | Auzentech X-Fi Forte 7.1 | Logitech Z906 5.1 | Audio Technica ATH-AD700 |
| View all | |||
| CPU | Motherboard | Graphics | RAM |
|---|---|---|---|
| i5-450M | Acer ZQ1B | Mobility Radeon HD 5650 | 4 GB DDR3 |
| Hard Drive | Optical Drive | OS | Monitor |
| 640 GB | Standard Acer DVD | Windows 7 Home Premium | 14" - 1366x768 |
| Mouse | Mouse Pad | ||
| Logitech G5 | Steelseries QCK | ||
| View all | |||
Still a budget build
(16 items) |
Notebook - Acer 4820TG
(13 items) |
| CPU | Motherboard | Graphics | RAM |
|---|---|---|---|
| i5 2500K @ 4.7 GHz | MSI P67A-GD55 (B3) | Zotac GTX 680 2 GB | 2x2 + 2x4 GB Kingston DDR3 @ 1600 MHz |
| Hard Drive | Optical Drive | OS | Monitor |
| |64 GB Crucial M4| + |1 TB Hitachi 7K1000.B| | LG GH22NS30 Super Multi | Windows 7 Home Premium 64-bit | BenQ XL2420T - 1920x1080 - 120 Hz |
| Keyboard | Power | Case | Mouse |
| Razer Tarantula | Corsair VX550W | Fractal Design Define XL | Logitech G500 |
| Mouse Pad | Audio | Audio | Audio |
| SteelSeries QcK | Auzentech X-Fi Forte 7.1 | Logitech Z906 5.1 | Audio Technica ATH-AD700 |
| View all | |||
| CPU | Motherboard | Graphics | RAM |
|---|---|---|---|
| i5-450M | Acer ZQ1B | Mobility Radeon HD 5650 | 4 GB DDR3 |
| Hard Drive | Optical Drive | OS | Monitor |
| 640 GB | Standard Acer DVD | Windows 7 Home Premium | 14" - 1366x768 |
| Mouse | Mouse Pad | ||
| Logitech G5 | Steelseries QCK | ||
| View all | |||
so why does lapping a solid base that's attached to the heatpipes work but not the heatpipe lapping directly? unless there's 0 incidence of heatpipe imperfection / curvature and whatnot
medicine ball
(14 items) |
| CPU | Motherboard | Graphics | RAM |
|---|---|---|---|
| AMD Phenom II X4 965 | Asus M4A89TD PRO USB3 | Asus 6950 DCII | Samsung DDR3 |
| Hard Drive | Hard Drive | Cooling | OS |
| OCZ Solid3 SSD | Samsung F1 7200 RPM | Zalman CNPS12X | Windows 7 Professional |
| Monitor | Keyboard | Power | Case |
| Samsung SyncMaster 943BWX 19" x2 | Filco Majestouch Tenkeyless | CoolerMaster SilentPro M 850 | Lian Li A05NB |
| Mouse | Audio | ||
| Gigabyte GHOST M8000X | Asus Xonar D1 | ||
| View all | |||
medicine ball
(14 items) |
| CPU | Motherboard | Graphics | RAM |
|---|---|---|---|
| AMD Phenom II X4 965 | Asus M4A89TD PRO USB3 | Asus 6950 DCII | Samsung DDR3 |
| Hard Drive | Hard Drive | Cooling | OS |
| OCZ Solid3 SSD | Samsung F1 7200 RPM | Zalman CNPS12X | Windows 7 Professional |
| Monitor | Keyboard | Power | Case |
| Samsung SyncMaster 943BWX 19" x2 | Filco Majestouch Tenkeyless | CoolerMaster SilentPro M 850 | Lian Li A05NB |
| Mouse | Audio | ||
| Gigabyte GHOST M8000X | Asus Xonar D1 | ||
| View all | |||
post #5 of 18
2/11/12 at 10:55am
- McMogg
- 333mhz
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- Joined: May 2011
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Quote:
The bases of the solid-base heatsinks can be slightly warped due to manufacturing defects (meaning they aren't in 100% contact with the IHS of the chip) you'd lap for this reason, and you wouldn't lap until you can see the heatpipes, just until it was 100% flat.
The heatpipes will have gaps between the IHS and such, but there's no way to lap them, or atleast not safely at all.
V-Card.
(19 items) |
| CPU | Motherboard | Graphics | RAM |
|---|---|---|---|
| i5 760 | Asus P7P55D Pro | Palit GTX460 Sonic-board | 8 GB Corsair Vengance Blue |
| Hard Drive | Hard Drive | Hard Drive | Cooling |
| 2TB Spinpoint F3 | 500GB Spinpoint F3 | 64GB Kingston SSDNow V100 | EK EN HF Supreme Nickel & Acetal |
| Cooling | Cooling | Cooling | OS |
| Phobya G-Changer 420 Rad | 3x 140mm High Speed Yate Loons | Alphacool Vario D5 | Windows 64Bit Ultimate |
| Monitor | Power | Case | |
| Asus 27" 1080p | XFX 650W XXX Edition | Xigmatek Elysium (Silver + Window) | |
| View all | |||
V-Card.
(19 items) |
| CPU | Motherboard | Graphics | RAM |
|---|---|---|---|
| i5 760 | Asus P7P55D Pro | Palit GTX460 Sonic-board | 8 GB Corsair Vengance Blue |
| Hard Drive | Hard Drive | Hard Drive | Cooling |
| 2TB Spinpoint F3 | 500GB Spinpoint F3 | 64GB Kingston SSDNow V100 | EK EN HF Supreme Nickel & Acetal |
| Cooling | Cooling | Cooling | OS |
| Phobya G-Changer 420 Rad | 3x 140mm High Speed Yate Loons | Alphacool Vario D5 | Windows 64Bit Ultimate |
| Monitor | Power | Case | |
| Asus 27" 1080p | XFX 650W XXX Edition | Xigmatek Elysium (Silver + Window) | |
| View all | |||
post #6 of 18
2/11/12 at 11:08am
- PontiacGTX
- Extreme Cooler
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Quote:
Originally Posted by McMogg 
The bases of the solid-base heatsinks can be slightly warped due to manufacturing defects (meaning they aren't in 100% contact with the IHS of the chip) you'd lap for this reason, and you wouldn't lap until you can see the heatpipes, just until it was 100% flat.
The heatpipes will have gaps between the IHS and such, but there's no way to lap them, or atleast not safely at all.

The bases of the solid-base heatsinks can be slightly warped due to manufacturing defects (meaning they aren't in 100% contact with the IHS of the chip) you'd lap for this reason, and you wouldn't lap until you can see the heatpipes, just until it was 100% flat.
The heatpipes will have gaps between the IHS and such, but there's no way to lap them, or atleast not safely at all.
This
Waiting Haswell
(18 items) |
| CPU | Motherboard | Graphics | RAM |
|---|---|---|---|
| Intel Core 2 Quad Q8400 | MSI G41TM-P31 | 300$ card | Corsair XSM2 2x2GB @800MHZ |
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| Corsair TX750W V2 | NZXT Tempest 410 | Genius SW2.1 S-350 | |
| View all | |||
Waiting Haswell
(18 items) |
| CPU | Motherboard | Graphics | RAM |
|---|---|---|---|
| Intel Core 2 Quad Q8400 | MSI G41TM-P31 | 300$ card | Corsair XSM2 2x2GB @800MHZ |
| Hard Drive | Optical Drive | Cooling | Cooling |
| Samsung Spinpoint F3 500 GB | LiteOn | Noctua NH D14 | 6x Cooler master 2000RPM |
| Cooling | Cooling | OS | Monitor |
| Antec Formula 7 | 2x NZXT 120 MM 1200 RPM | Windows 7 Home Premium 32/64 Bits | LG W1943C |
| Power | Case | Audio | |
| Corsair TX750W V2 | NZXT Tempest 410 | Genius SW2.1 S-350 | |
| View all | |||
ah okay. does anyone have a good lapping guide for just the cpu then? 
getting a lot of conflicting information... some say use sandpaper, some brillo, others just nails. i can't believe OCN doesn't have a guide!

getting a lot of conflicting information... some say use sandpaper, some brillo, others just nails. i can't believe OCN doesn't have a guide!
medicine ball
(14 items) |
| CPU | Motherboard | Graphics | RAM |
|---|---|---|---|
| AMD Phenom II X4 965 | Asus M4A89TD PRO USB3 | Asus 6950 DCII | Samsung DDR3 |
| Hard Drive | Hard Drive | Cooling | OS |
| OCZ Solid3 SSD | Samsung F1 7200 RPM | Zalman CNPS12X | Windows 7 Professional |
| Monitor | Keyboard | Power | Case |
| Samsung SyncMaster 943BWX 19" x2 | Filco Majestouch Tenkeyless | CoolerMaster SilentPro M 850 | Lian Li A05NB |
| Mouse | Audio | ||
| Gigabyte GHOST M8000X | Asus Xonar D1 | ||
| View all | |||
medicine ball
(14 items) |
| CPU | Motherboard | Graphics | RAM |
|---|---|---|---|
| AMD Phenom II X4 965 | Asus M4A89TD PRO USB3 | Asus 6950 DCII | Samsung DDR3 |
| Hard Drive | Hard Drive | Cooling | OS |
| OCZ Solid3 SSD | Samsung F1 7200 RPM | Zalman CNPS12X | Windows 7 Professional |
| Monitor | Keyboard | Power | Case |
| Samsung SyncMaster 943BWX 19" x2 | Filco Majestouch Tenkeyless | CoolerMaster SilentPro M 850 | Lian Li A05NB |
| Mouse | Audio | ||
| Gigabyte GHOST M8000X | Asus Xonar D1 | ||
| View all | |||
post #8 of 18
2/11/12 at 11:15am
- iCrap
- WaterCooler
-


- Joined: Apr 2011
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I lapped my Hyper 212+ (which is HDT) with just some very fine sandpaper which dropped temps like 1c. Imo its not worth it.
A Cut Up Antec 300 V2.5
(17 items) |
| CPU | Motherboard | Graphics | Graphics |
|---|---|---|---|
| Core i5 2500k | Asrock Extreme3 Gen3 | HIS 6950 2GB IceQ | 6950 |
| RAM | Hard Drive | Optical Drive | Cooling |
| 12GB DDR3 | Vertex3 90GB + 1TB + Raid0 1TB | External Sony | XSPC Raystorm + 240,120rads + Swiftech MCW80 + ... |
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| Windows 7 Ultimate | 2x 27" Planar 1x Asus 24" Eyefinity + 19" Acer | Ducky Shine (MX Browns, Blue LED) | Rosewill (630w) |
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| Molested A300 | G400 | QCK+ | Xonar DX |
| Audio | |||
| Dayton B652 + Polk PSW10 + Turtle Beach X31 / A... | |||
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A Cut Up Antec 300 V2.5
(17 items) |
| CPU | Motherboard | Graphics | Graphics |
|---|---|---|---|
| Core i5 2500k | Asrock Extreme3 Gen3 | HIS 6950 2GB IceQ | 6950 |
| RAM | Hard Drive | Optical Drive | Cooling |
| 12GB DDR3 | Vertex3 90GB + 1TB + Raid0 1TB | External Sony | XSPC Raystorm + 240,120rads + Swiftech MCW80 + ... |
| OS | Monitor | Keyboard | Power |
| Windows 7 Ultimate | 2x 27" Planar 1x Asus 24" Eyefinity + 19" Acer | Ducky Shine (MX Browns, Blue LED) | Rosewill (630w) |
| Case | Mouse | Mouse Pad | Audio |
| Molested A300 | G400 | QCK+ | Xonar DX |
| Audio | |||
| Dayton B652 + Polk PSW10 + Turtle Beach X31 / A... | |||
| View all | |||
post #9 of 18
2/11/12 at 12:41pm
- Captain Mayhem
- Audiophile
- Joined: Feb 2011
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I didn't lap my HDT, but all I did was smooth the base a bit with 2000grit sandpaper. no difference.
I did find out it was a little concave, though.
I did find out it was a little concave, though.
MaxMini
(17 items) |
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|---|---|---|---|
| i5 760 | Asus P7P55D Pro | Gigabyte GTX 460 Fermi | G-SKILL Ripjaw 2x4GB |
| Hard Drive | Hard Drive | Hard Drive | Optical Drive |
| Seagate | Seagate | Samsung | Pioneer 16X DVD burner |
| Cooling | OS | Monitor | Keyboard |
| CoolerMaster Hyper 212+ | Windows 7 Ultimate 64bit | Viewsonic G790 | Certified Data slim |
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| Coolermaster 550W | Donated | Logitech G700 | Razer Goliathus |
| Audio | |||
| Via HD Audio | |||
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MaxMini
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| i5 760 | Asus P7P55D Pro | Gigabyte GTX 460 Fermi | G-SKILL Ripjaw 2x4GB |
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| Seagate | Seagate | Samsung | Pioneer 16X DVD burner |
| Cooling | OS | Monitor | Keyboard |
| CoolerMaster Hyper 212+ | Windows 7 Ultimate 64bit | Viewsonic G790 | Certified Data slim |
| Power | Case | Mouse | Mouse Pad |
| Coolermaster 550W | Donated | Logitech G700 | Razer Goliathus |
| Audio | |||
| Via HD Audio | |||
| View all | |||
post #10 of 18
2/11/12 at 1:18pm
- gymenii
- 4.0 GHz
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Quote:
http://www.overclock.net/t/290130/lapping-your-cpu-and-heatsink
Here's a few videos on this topic as well - link
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- are you supposed to lap direct touch heatsinks?
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