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Question about Lapping My CPU

post #1 of 13
Thread Starter 
to lap my E6750, do i HAVE to have a cover for the back of my cpu? or can i use something else for it? the grits of sandpaper i have and might use is 220,400,800, and 1200. does it have to be wet or can i have it dry?
and can u give me tecniques since im new to it
    
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post #2 of 13
just to be on the safe side i would cover the back of the cpu..i just used that black plastic cover that comes on the back of your cpu when you buy it..also those grits are fine, no they do not have to be wet, but it does help make the lapping a little easier..and just tape the sand papers down on a piece of glass or mirror, anything else wont be flat enough and then just go in a up and down motion and after a couple minutes just turn the cpu 90 degrees.
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Crucial MX200 250gb + 1tb Lg Bluray EK Supreme, TC PA120.3, D5 Vario, San Ace Windows 7 Ultimate  
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post #3 of 13
Thread Starter 
but what if i don't have the black thing for the back?
    
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E6750 @ 3.74 vCore @ 1.44 eVGA 780i Diamond HD 4850 :D 4GB OCZ Platinum 
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OCZ Elixir Serie, B-Day Present! Seasonic S12 650W SLI-Ready Mirror's Edge Antec 900 Microsoft Sidewinder!! 
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CPUMotherboardGraphicsRAM
E6750 @ 3.74 vCore @ 1.44 eVGA 780i Diamond HD 4850 :D 4GB OCZ Platinum 
Hard DriveOptical DriveOSMonitor
250GB Seagate 7200RPM Pioneer CD/DVD-ROM/RW Vista Ult. x64 / W7 x64 21 inch Samsung SyncMaster 214T 
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OCZ Elixir Serie, B-Day Present! Seasonic S12 650W SLI-Ready Mirror's Edge Antec 900 Microsoft Sidewinder!! 
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post #4 of 13
Thread Starter 
what could i use?
    
CPUMotherboardGraphicsRAM
E6750 @ 3.74 vCore @ 1.44 eVGA 780i Diamond HD 4850 :D 4GB OCZ Platinum 
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OCZ Elixir Serie, B-Day Present! Seasonic S12 650W SLI-Ready Mirror's Edge Antec 900 Microsoft Sidewinder!! 
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CPUMotherboardGraphicsRAM
E6750 @ 3.74 vCore @ 1.44 eVGA 780i Diamond HD 4850 :D 4GB OCZ Platinum 
Hard DriveOptical DriveOSMonitor
250GB Seagate 7200RPM Pioneer CD/DVD-ROM/RW Vista Ult. x64 / W7 x64 21 inch Samsung SyncMaster 214T 
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OCZ Elixir Serie, B-Day Present! Seasonic S12 650W SLI-Ready Mirror's Edge Antec 900 Microsoft Sidewinder!! 
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post #5 of 13
Nothing is going to harm the back of the CPU unless you try to lap that.

LGA chips are phenominally durable. They can be abused a great deal, and as long as you dont give them a static shock, or physically break chuncks off, it will probably be fine.

I was originally worried about solvents damaging the TIM (which has happened before with AMD chips I've cleaned) while lapping or cleaning a core 2, but after attempting to remove the heatspreader from one of mine and finding far more difficult than anticipated, I know know that all of Intels IHS bearing chips use an epoxy to hold the heatspreader to the die.

I've lapped one of my E8400 and one of my E2140s twice. They were cleaned and lapped with WD40, scrubbed while submerged in soapy water with a toothbrush, submerged in 99% isopropyl to remove all soap residue, and then left on a sheet of aluminum foil in my oven at 220F for 45 minutes to dry. At no point did I over the back sideof the chip, or care if stuff made it under the heatspreader. Both chips work fine and look as good as new.

There is nothing on modern CPUs that can corrode in water, nor anything on Intel CPUs that will be harmed by any solvent that would not remove your skin, nor that can be harmed by any temperature that would not blister you. There are no pins on LGA775 chips to bend or break.
Edited by Blameless - 6/26/08 at 3:51pm
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5820K @ 4.3/3.6GHz core/uncore, 1.225/1.2v Gigabyte X99 SOC Champion (F22n) 2x Sapphire R9 290X Tri-X OC New Edition (10036... 4x4GiB Crucial @ 2667, 12-11-12-27-T1, 1.37v 
Hard DriveHard DriveHard DriveCooling
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X5670 @ 4.4/3.2GHz core/uncore, 1.36 vcore, 1.2... Gigabyte X58A-UD5 r2.0 w/FF3mod10 BIOS Reference R9 290X w/Stilt's MLU 1000e / 1375m E... 2x Samsung MV-3V4G3D/US @ 2000, 10-11-11-30-T1,... 
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post #6 of 13
Thread Starter 
but still should i wear latex gloves and cover the back with masking tape or painters tape?
    
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OCZ Elixir Serie, B-Day Present! Seasonic S12 650W SLI-Ready Mirror's Edge Antec 900 Microsoft Sidewinder!! 
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CPUMotherboardGraphicsRAM
E6750 @ 3.74 vCore @ 1.44 eVGA 780i Diamond HD 4850 :D 4GB OCZ Platinum 
Hard DriveOptical DriveOSMonitor
250GB Seagate 7200RPM Pioneer CD/DVD-ROM/RW Vista Ult. x64 / W7 x64 21 inch Samsung SyncMaster 214T 
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OCZ Elixir Serie, B-Day Present! Seasonic S12 650W SLI-Ready Mirror's Edge Antec 900 Microsoft Sidewinder!! 
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post #7 of 13
you dont have to wear gloves or anything...but you can cover the back of the chip with masking tape if it makes you feel any better.
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4790K delidded @4.9ghz Asus Z97 Deluxe Wifi EVGA GTX 980 SC 2 x 8GB Corsair Vengence 2400 
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Crucial MX200 250gb + 1tb Lg Bluray EK Supreme, TC PA120.3, D5 Vario, San Ace Windows 7 Ultimate  
MonitorKeyboardPowerCase
32" LG7000 1920x1080 Logitech S510 XFX 650Watt XXX Modular Edition Custom Modded 
MouseAudio
Logitech S510 Mission M74 Denon PMA 355 
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My System
(15 items)
 
  
CPUMotherboardGraphicsRAM
4790K delidded @4.9ghz Asus Z97 Deluxe Wifi EVGA GTX 980 SC 2 x 8GB Corsair Vengence 2400 
Hard DriveOptical DriveCoolingOS
Crucial MX200 250gb + 1tb Lg Bluray EK Supreme, TC PA120.3, D5 Vario, San Ace Windows 7 Ultimate  
MonitorKeyboardPowerCase
32" LG7000 1920x1080 Logitech S510 XFX 650Watt XXX Modular Edition Custom Modded 
MouseAudio
Logitech S510 Mission M74 Denon PMA 355 
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post #8 of 13
Thread Starter 
i just don't wanna f*** it up and have to explain it to my dad.....250$ chip first to get when it came out.
    
CPUMotherboardGraphicsRAM
E6750 @ 3.74 vCore @ 1.44 eVGA 780i Diamond HD 4850 :D 4GB OCZ Platinum 
Hard DriveOptical DriveOSMonitor
250GB Seagate 7200RPM Pioneer CD/DVD-ROM/RW Vista Ult. x64 / W7 x64 21 inch Samsung SyncMaster 214T 
KeyboardPowerCaseMouse
OCZ Elixir Serie, B-Day Present! Seasonic S12 650W SLI-Ready Mirror's Edge Antec 900 Microsoft Sidewinder!! 
  hide details  
Reply
    
CPUMotherboardGraphicsRAM
E6750 @ 3.74 vCore @ 1.44 eVGA 780i Diamond HD 4850 :D 4GB OCZ Platinum 
Hard DriveOptical DriveOSMonitor
250GB Seagate 7200RPM Pioneer CD/DVD-ROM/RW Vista Ult. x64 / W7 x64 21 inch Samsung SyncMaster 214T 
KeyboardPowerCaseMouse
OCZ Elixir Serie, B-Day Present! Seasonic S12 650W SLI-Ready Mirror's Edge Antec 900 Microsoft Sidewinder!! 
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Reply
post #9 of 13
Thread Starter 
im still gonna wear gloves
    
CPUMotherboardGraphicsRAM
E6750 @ 3.74 vCore @ 1.44 eVGA 780i Diamond HD 4850 :D 4GB OCZ Platinum 
Hard DriveOptical DriveOSMonitor
250GB Seagate 7200RPM Pioneer CD/DVD-ROM/RW Vista Ult. x64 / W7 x64 21 inch Samsung SyncMaster 214T 
KeyboardPowerCaseMouse
OCZ Elixir Serie, B-Day Present! Seasonic S12 650W SLI-Ready Mirror's Edge Antec 900 Microsoft Sidewinder!! 
  hide details  
Reply
    
CPUMotherboardGraphicsRAM
E6750 @ 3.74 vCore @ 1.44 eVGA 780i Diamond HD 4850 :D 4GB OCZ Platinum 
Hard DriveOptical DriveOSMonitor
250GB Seagate 7200RPM Pioneer CD/DVD-ROM/RW Vista Ult. x64 / W7 x64 21 inch Samsung SyncMaster 214T 
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OCZ Elixir Serie, B-Day Present! Seasonic S12 650W SLI-Ready Mirror's Edge Antec 900 Microsoft Sidewinder!! 
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post #10 of 13
A Faster Way to Lapping onelivestarfish's wonderful post...

It worked wonders for me...
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The Money Pit
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