Overclock.net › Forums › Mobile Computing Forum › Laptops and Netbooks › Why not to replace your laptop's thermal pad with thermal compound...
New Posts  All Forums:Forum Nav:

Why not to replace your laptop's thermal pad with thermal compound...

post #1 of 12
Thread Starter 
I decided to tear apart my laptop, a Compaq CQ61, and replace the CMOS battery and clean the heatsink off. After I removed the heatsink I tore the thermal pad and thought it would be OK to just use Arctic Silver on the GPU and CPU. After I put it back together the laptop kept shutting off randomly. I had a feeling it was the GPU so I dug my old XFX HD 4890 graphics card gathering dust out of the closet, and took the heatsink off and cut out a square of thermal pad off one of the Vram and placed it on the laptop's GPU. Now it's running fine, so I'm a little curious why the heatpipe isn't attached more securely so that you can use thermal compound instead of a thermal pad on the GPU.

There is almost no tension on the GPU heatsink at all.
Edited by aweir - 8/15/16 at 6:06pm
post #2 of 12
Did it come originally with thermal compound or a thermal pad?, i actually had a similar issue when taking apart my laptop and installing AS5 but haven't tried installing a thermal pad on gpu..
LIttle One
(15 items)
 
Old but Gold
(8 items)
 
 
CPUMotherboardGraphicsRAM
QX9300 Dell Nvidia Quadro FX3700M Hynix 
Hard DriveOSMonitorCase
Corsair Force 3 Windows 10 17" WUXGA Dell Precision M6400 
  hide details  
Reply
LIttle One
(15 items)
 
Old but Gold
(8 items)
 
 
CPUMotherboardGraphicsRAM
QX9300 Dell Nvidia Quadro FX3700M Hynix 
Hard DriveOSMonitorCase
Corsair Force 3 Windows 10 17" WUXGA Dell Precision M6400 
  hide details  
Reply
post #3 of 12
Thread Starter 
It had a thermal pad on the GPU and thermal paste on the CPU. I guess a thermal pad works better.
post #4 of 12
You have to use a thermal pad if the heatsink isn't making solid contact. The thermal paste can't fill a real gap, it's only meant to fill in tiny cracks between two surfaces that are clamped together.

The pads offer worse performance, but they work with a gap, while paste wont.
SUPERPWN
(12 items)
 
  
CPUMotherboardGraphicsRAM
Core i5 4670K Asus z87-Pro MSI GTX 1080 Aero 32GB DDR3 Gskill Ripjaws 
Hard DriveOSMonitorMonitor
4TB Seagate Windows 8 x64 Overlord x270 OC HP ZR27 
MonitorKeyboardPowerAudio
Asus PG279Q G-Tune Topre Realforce 800w Yulong D100 DAC with Denon D7000 headphones 
  hide details  
Reply
SUPERPWN
(12 items)
 
  
CPUMotherboardGraphicsRAM
Core i5 4670K Asus z87-Pro MSI GTX 1080 Aero 32GB DDR3 Gskill Ripjaws 
Hard DriveOSMonitorMonitor
4TB Seagate Windows 8 x64 Overlord x270 OC HP ZR27 
MonitorKeyboardPowerAudio
Asus PG279Q G-Tune Topre Realforce 800w Yulong D100 DAC with Denon D7000 headphones 
  hide details  
Reply
post #5 of 12
That is unusual and likely a problem of lack of care in production/cost cutting. With almost all of the laptops I've taken apart the GPU makes direct contact with the heat pipes contact point. Wonder if you couldn't slip some cardboard in there somewhere to force contact...
finally quiet
(20 items)
 
Peggy
(11 items)
 
Betty - WIP
(17 items)
 
CPUMotherboardGraphicsRAM
i5-760 3.8 + turbo MSI P55-GD80 MSI GTX 970 Golden Edition 16GB Tactical LP 1600 c8 
Hard DriveHard DriveHard DriveCooling
Samsung 840 Pro 128GB OCZ Agility 60GB Spinpoint F3 1TB Noctua NH-U12P SE2 
CoolingOSMonitorMonitor
2x NF-P12, CPU OS X 10.10, 8.1 Ultimate Asus VW246H Ergotron Neo-Flex 
KeyboardPowerCaseMouse
CM Quick Fire Rapid EVGA Supernova G2 850W Silverstone FT-02W CM Spawn 
AudioAudioAudio
Sony TA-AX380 Sennheiser HD 280 KLH 911B 
CPUMotherboardGraphicsRAM
i3-2125 GA-H61N USB3 HD3000 8GB Samsung Miracle RAM 
Hard DriveHard DriveHard DriveCooling
Kingston 60GB 3ware/LSI 9750-4i Hitachi 5k3000 2TB x4 RAID 5 Intel for now 
OSPowerCase
OS X 10.8.2 Corsiar CX430M Fractal Design Node 304 
CPUMotherboardGraphicsRAM
i3-2100 ASUS P8H67-M PRO/CSM ASUS Passive GT 440 4GB Dominator 1600 c8 
Hard DriveOptical DriveCoolingCooling
Hitachi 120GB 2.5" LG BR-RW CM GeminII S + NF-P12 2x NF-R8 - Intake 
CoolingOSMonitorKeyboard
NF-B9 Windows 7 Sony KDL-46NX700 MK700 
PowerCaseMouseAudio
Antec EA-650 Zalman HD160XT, Modded MK700 Yamaha RX-V373 
  hide details  
Reply
finally quiet
(20 items)
 
Peggy
(11 items)
 
Betty - WIP
(17 items)
 
CPUMotherboardGraphicsRAM
i5-760 3.8 + turbo MSI P55-GD80 MSI GTX 970 Golden Edition 16GB Tactical LP 1600 c8 
Hard DriveHard DriveHard DriveCooling
Samsung 840 Pro 128GB OCZ Agility 60GB Spinpoint F3 1TB Noctua NH-U12P SE2 
CoolingOSMonitorMonitor
2x NF-P12, CPU OS X 10.10, 8.1 Ultimate Asus VW246H Ergotron Neo-Flex 
KeyboardPowerCaseMouse
CM Quick Fire Rapid EVGA Supernova G2 850W Silverstone FT-02W CM Spawn 
AudioAudioAudio
Sony TA-AX380 Sennheiser HD 280 KLH 911B 
CPUMotherboardGraphicsRAM
i3-2125 GA-H61N USB3 HD3000 8GB Samsung Miracle RAM 
Hard DriveHard DriveHard DriveCooling
Kingston 60GB 3ware/LSI 9750-4i Hitachi 5k3000 2TB x4 RAID 5 Intel for now 
OSPowerCase
OS X 10.8.2 Corsiar CX430M Fractal Design Node 304 
CPUMotherboardGraphicsRAM
i3-2100 ASUS P8H67-M PRO/CSM ASUS Passive GT 440 4GB Dominator 1600 c8 
Hard DriveOptical DriveCoolingCooling
Hitachi 120GB 2.5" LG BR-RW CM GeminII S + NF-P12 2x NF-R8 - Intake 
CoolingOSMonitorKeyboard
NF-B9 Windows 7 Sony KDL-46NX700 MK700 
PowerCaseMouseAudio
Antec EA-650 Zalman HD160XT, Modded MK700 Yamaha RX-V373 
  hide details  
Reply
post #6 of 12
Thread Starter 
I know. This is what the heatpipe looks like. Same laptop. Skip to 8:18 to see the heatsink. You'd think the GPU heatsink would be screwed down also.


Edited by aweir - 8/15/16 at 6:33pm
post #7 of 12
Just tried and it's still shutting down itself so it's not my case =(
LIttle One
(15 items)
 
Old but Gold
(8 items)
 
 
CPUMotherboardGraphicsRAM
QX9300 Dell Nvidia Quadro FX3700M Hynix 
Hard DriveOSMonitorCase
Corsair Force 3 Windows 10 17" WUXGA Dell Precision M6400 
  hide details  
Reply
LIttle One
(15 items)
 
Old but Gold
(8 items)
 
 
CPUMotherboardGraphicsRAM
QX9300 Dell Nvidia Quadro FX3700M Hynix 
Hard DriveOSMonitorCase
Corsair Force 3 Windows 10 17" WUXGA Dell Precision M6400 
  hide details  
Reply
post #8 of 12
This is good info to know, thanks aweir.
although my alienware laptop with a nvidia gpu had thermal paste that I replaced a couple years
ago and it worked fine, but if I ever re-do one with a thermal pad I will be sure to replace the thermal pad
and not use paste.
Old X58
(17 items)
 
  
CPUMotherboardGraphicsRAM
i7 970 6 core ASUS Sabertooth X58 MSI GTX 1070 Gaming X GSkill 24 gigs 
Hard DriveHard DriveHard DriveCooling
Crucial MX100 256 gig Crucial M500 120gig WD VelociRaptor 1TB Noctua 
OSMonitorMonitorKeyboard
Windows 7 Pro 64bit LG 29inch widescreen DP LG 29inch widescreen DP Corsair K65 
PowerCaseMouseAudio
EVGA SuperNova G2 1000w Corsair C70 Corsair M65 Sound Blaster Z 
Other
Custom sleeved psu cables 
  hide details  
Reply
Old X58
(17 items)
 
  
CPUMotherboardGraphicsRAM
i7 970 6 core ASUS Sabertooth X58 MSI GTX 1070 Gaming X GSkill 24 gigs 
Hard DriveHard DriveHard DriveCooling
Crucial MX100 256 gig Crucial M500 120gig WD VelociRaptor 1TB Noctua 
OSMonitorMonitorKeyboard
Windows 7 Pro 64bit LG 29inch widescreen DP LG 29inch widescreen DP Corsair K65 
PowerCaseMouseAudio
EVGA SuperNova G2 1000w Corsair C70 Corsair M65 Sound Blaster Z 
Other
Custom sleeved psu cables 
  hide details  
Reply
post #9 of 12
I can't speak on other manufacturers as I work mainly on HP's, but I can say this is pretty common for HP laptops. Mainly older ones though. They've gotten better at using thermal paste on the newer (late 2014-current) ones though. Pre-2014 it was pretty rare to see an HP with a dedicated GPU that used thermal paste and not a pad. Hell, even on some current models they are using pads instead of paste on even the CPU's with low TDP. But anyways, you should change your thread title. It's safe to use thermal paste on a laptop GPU as long as it came stock with paste, if it comes with a pad, only replace it with another pad.
Angel Wings
(15 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core i7 6700k ASUS Z170-PRO Zotac Geforce GTX 970 G. Skill Trident Z 
Hard DriveHard DriveOptical DriveCooling
MyDigitalSSD BPX Crucial MX300 LG Black Blu-Ray Burner Custom Liquid Cooling 
OSMonitorKeyboardPower
Windows 10 46" 1080p Samsung TV Logitech K800 Seasonic SS-750KM3 
CaseMouseAudio
Phanteks “Enthoo Pro Series" Logitech M215 5.1 Polk Audio Setup 
  hide details  
Reply
Angel Wings
(15 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core i7 6700k ASUS Z170-PRO Zotac Geforce GTX 970 G. Skill Trident Z 
Hard DriveHard DriveOptical DriveCooling
MyDigitalSSD BPX Crucial MX300 LG Black Blu-Ray Burner Custom Liquid Cooling 
OSMonitorKeyboardPower
Windows 10 46" 1080p Samsung TV Logitech K800 Seasonic SS-750KM3 
CaseMouseAudio
Phanteks “Enthoo Pro Series" Logitech M215 5.1 Polk Audio Setup 
  hide details  
Reply
post #10 of 12
You need to fill the space with something, i usually use a sheet of thin cooper (0.5mm+/-) with thermal paste on both sides
Lili-chan
(17 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core i5 4790K @ 4.5Ghz - WC ASUS Z97A EVGA Geforce GTX 1070 Founders Edition + EKWB F... Corsair Vengance 2x8 2400Mhz DDR3 
Hard DriveHard DriveHard DriveOptical Drive
WD Green 1TB WD Blue 1TB Samsung EVO 840 250GB No they are just horrible 
CoolingOSMonitorKeyboard
Custom Watercooling Windows 10 Samsung 2333T Kingston Hyper X FPS 
PowerCaseMouseMouse Pad
Seasonic M12 750W LIAN LI PC A05N Razer Deathadder 4G - 2013 A few 
Audio
Native Instrument Audio 2 DJ 
  hide details  
Reply
Lili-chan
(17 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core i5 4790K @ 4.5Ghz - WC ASUS Z97A EVGA Geforce GTX 1070 Founders Edition + EKWB F... Corsair Vengance 2x8 2400Mhz DDR3 
Hard DriveHard DriveHard DriveOptical Drive
WD Green 1TB WD Blue 1TB Samsung EVO 840 250GB No they are just horrible 
CoolingOSMonitorKeyboard
Custom Watercooling Windows 10 Samsung 2333T Kingston Hyper X FPS 
PowerCaseMouseMouse Pad
Seasonic M12 750W LIAN LI PC A05N Razer Deathadder 4G - 2013 A few 
Audio
Native Instrument Audio 2 DJ 
  hide details  
Reply
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Laptops and Netbooks
Overclock.net › Forums › Mobile Computing Forum › Laptops and Netbooks › Why not to replace your laptop's thermal pad with thermal compound...