• Welcome to TechPowerUp Forums, Guest! Please check out our forum guidelines for info related to our community.

Thermal Pad for VRM and others

Joined
Oct 6, 2020
Messages
81 (1.35/day)
System Name HP Omen DH0105TX Gaming Laptop
Processor I7 9750H
Motherboard Omen
Cooling Omen
Memory 16gb
Video Card(s) RTX 2060
Storage 512 mvne + 2tb ssd
Display(s) Omen X25F
Case Omen
Audio Device(s) Logitec, Omen Mindframe
Power Supply Omen
Mouse Omen Reactor
Keyboard Omen Sequencer
Software Windows 10
There are so many thickness in thermalpad VRM or other thing, (But not for GPU & CPU), in store I diffrent thickness, 0,5mm and 1mm. what should i choose?? also some store told me to use thermal tape which is thinner for better heat transfer....I am confused...anyone has experience in this?
 
Joined
Jan 25, 2020
Messages
76 (0.24/day)
Its depends on what your using it for. We need to know what its replacing and on what.
 
Joined
Oct 6, 2020
Messages
81 (1.35/day)
System Name HP Omen DH0105TX Gaming Laptop
Processor I7 9750H
Motherboard Omen
Cooling Omen
Memory 16gb
Video Card(s) RTX 2060
Storage 512 mvne + 2tb ssd
Display(s) Omen X25F
Case Omen
Audio Device(s) Logitec, Omen Mindframe
Power Supply Omen
Mouse Omen Reactor
Keyboard Omen Sequencer
Software Windows 10
Its for my laptop omen dh0105tx, replacing old thermal pads
 
Joined
Jan 22, 2009
Messages
182 (0.04/day)
Location
Switzerland
Processor Intel i7 9700K
Motherboard Aorus Z390 PRO
Cooling Noctua NH-U14S
Memory Aorus DDR4 2x8GB 3200Mhz
Video Card(s) MSI GTX 1080 Ti Gaming X 11GB
Storage Samsung 970 EVO M.2 1TB / Toshiba E300 2TB
Display(s) Samsung G7 Odyssey
Case Phantek P600S/ Corsair ML140 Pro
Power Supply EVGA G3 750W
Mouse Razer Deathadder V2 Mini
Keyboard Razer Huntsman
Software Windows 10 x64
I think the best way to be sure would be to measure the current thermal pads. I would say it's always better for it to be a bt thicker then thinner, so if 1mm is used, you could always use 1.5mm but not 0.5mm.
 
Joined
Jul 25, 2006
Messages
7,711 (1.47/day)
Location
Nebraska, USA
System Name Brightworks Systems BWS-6 E-IV
Processor Intel Core i5-6600 @ 3.9GHz
Motherboard Gigabyte GA-Z170-HD3 Rev 1.0
Cooling Quality case, 2 x Fractal Design 140mm fans, stock CPU HSF
Memory 16GB (2 x 8GB) DDR4 3000 Corsair Vengeance
Video Card(s) EVGA GEForce GTX 1050Ti 4Gb GDDR5
Storage Samsung 850 Pro 256GB SSD, Samsung 860 Evo 500GB SSD
Display(s) Samsung S24E650BW LED x 2
Case Fractal Design Define R4
Power Supply EVGA Supernova 550W G2 Gold
Mouse Microsoft Wireless 5000
Keyboard Microsoft Wireless Comfort 5050
Software W10 Pro 64-bit
replacing old thermal pads
Why? They never need to be replaced just because they are "old". If you are having heat issues, it is more likely due to heat trapping dust build up inside the case or blocking vents, or a failing fan or something else.
 
Joined
Nov 20, 2013
Messages
4,589 (1.78/day)
Location
Kiev, Ukraine
System Name WS#1337
Processor Ryzen 5 1600X
Motherboard Gigabyte x470 AORUS Ultra Gamin
Cooling Xigmatek Scylla 240 AIO
Memory 2x8GB Team T-Force Vulkan DDR4-3000
Video Card(s) MSI RTX 2060 Super Armor OC
Storage Adata SX8200 Pro 1TB
Display(s) Samsung U24E590D (4K/UHD)
Case Chieftec AL-01B-OP
Audio Device(s) ALC1220
Power Supply SeaSonic SSR-550FX (80+ GOLD)
Mouse Logitech G603
Keyboard Zalman K500 modded (Gateron brown)
Software Windows 10, Ubuntu 20.04 LTS
There are so many thickness in thermalpad VRM or other thing, (But not for GPU & CPU), in store I diffrent thickness, 0,5mm and 1mm. what should i choose?? also some store told me to use thermal tape which is thinner for better heat transfer....I am confused...anyone has experience in this?
Just use the same thickness as original. Usually it's 1mm on VRM (rarely 0.5mm on chokes, if it had any).

Why? They never need to be replaced just because they are "old". If you are having heat issues, it is more likely due to heat trapping dust build up inside the case or blocking vents, or a failing fan or something else.
There are tons of reasons, one of which is factory-installed pads are usually shit. Another good reason, is that 1-2 years down the road these cheap pads start secreting oily snot that may cause issues later(turning dust into black goo, corroding solder pads on BGA components etc). It's not just on laptops, it was pretty bad on Pascal and Polaris cards with thermal pads on VRAM. Back in a mining craze days it was a nice side-hassle, just washing cards with IPA and seeing happy faces of customers who got scared in the previous repair workshop with terrifying diagnosis, like "you have artifacts due to dead GPU", or "VRAM died from abuse" etc.
I do agree that you don't have to replace them "just because", but there are some exceptions that don't include heat.
 
Joined
Oct 6, 2020
Messages
81 (1.35/day)
System Name HP Omen DH0105TX Gaming Laptop
Processor I7 9750H
Motherboard Omen
Cooling Omen
Memory 16gb
Video Card(s) RTX 2060
Storage 512 mvne + 2tb ssd
Display(s) Omen X25F
Case Omen
Audio Device(s) Logitec, Omen Mindframe
Power Supply Omen
Mouse Omen Reactor
Keyboard Omen Sequencer
Software Windows 10
Desktop counterparts have better cooling system, where laptop everybit components counts, especialy gaming laptop which the temp when gaming can reach 92 degree and when idel is 46-50 degree.. I dont think factory thermal pads would last very long
 
Joined
Jul 21, 2018
Messages
649 (0.75/day)
Location
Germany
System Name FATTYDOVE-R-SPEC
Processor Intel i9 10980XE
Motherboard EVGA X299 Dark
Cooling Water (1x 240mm, 1x 280mm, 1x 420mm + Mo-Ra 360 external radiator)
Memory 32GB DDR4
Video Card(s) RTX 2080 Super
Storage Crucial MX500
Display(s) 24", 1440p, freesync, 144hz
Case Open Benchtable (OBT)
Audio Device(s) beyerdynamic MMX 300
Power Supply EVGA Supernova T2 1600W
Mouse OG steelseries Sensei
Keyboard steelseries 6Gv2
Software Windows 10
I think the best way to be sure would be to measure the current thermal pads. I would say it's always better for it to be a bt thicker then thinner, so if 1mm is used, you could always use 1.5mm but not 0.5mm.
That is dangerous, some pads are very stiff and don't squish much. So much that you can bend and break the pcb when you screw parts down with too thick thermal pads. Always aim for the correct size.

Desktop counterparts have better cooling system, where laptop everybit components counts, especialy gaming laptop which the temp when gaming can reach 92 degree and when idel is 46-50 degree.. I dont think factory thermal pads would last very long
Usually pads are designed to last a long time under the conditions they are used in. Most thermal pads have an acceptal temperature range that goes up to like 200°C. If your laptop is not 10+ years old I don't see a need to change them.
And in contrary to most pastes, aftermarket pads are rarely any better then the stock ones! If you want to improve the thermals you might need some rather expensive pads. Fujipoly makes good pads but at a premium cost.
 
Joined
Jan 22, 2009
Messages
182 (0.04/day)
Location
Switzerland
Processor Intel i7 9700K
Motherboard Aorus Z390 PRO
Cooling Noctua NH-U14S
Memory Aorus DDR4 2x8GB 3200Mhz
Video Card(s) MSI GTX 1080 Ti Gaming X 11GB
Storage Samsung 970 EVO M.2 1TB / Toshiba E300 2TB
Display(s) Samsung G7 Odyssey
Case Phantek P600S/ Corsair ML140 Pro
Power Supply EVGA G3 750W
Mouse Razer Deathadder V2 Mini
Keyboard Razer Huntsman
Software Windows 10 x64
That is dangerous, some pads are very stiff and don't squish much. So much that you can bend and break the pcb when you screw parts down with too thick thermal pads. Always aim for the correct size.
Of course ideally it's always better to use the correct size. I haven't really seen super "stiff" thermal pad, even old ones are still a bit squishy. Unless something is super tight with very tight tolerances, I don't think an extra 0.5mm will bend and/or break a PCB.
 
Joined
Jul 21, 2018
Messages
649 (0.75/day)
Location
Germany
System Name FATTYDOVE-R-SPEC
Processor Intel i9 10980XE
Motherboard EVGA X299 Dark
Cooling Water (1x 240mm, 1x 280mm, 1x 420mm + Mo-Ra 360 external radiator)
Memory 32GB DDR4
Video Card(s) RTX 2080 Super
Storage Crucial MX500
Display(s) 24", 1440p, freesync, 144hz
Case Open Benchtable (OBT)
Audio Device(s) beyerdynamic MMX 300
Power Supply EVGA Supernova T2 1600W
Mouse OG steelseries Sensei
Keyboard steelseries 6Gv2
Software Windows 10
Of course ideally it's always better to use the correct size. I haven't really seen super "stiff" thermal pad, even old ones are still a bit squishy. Unless something is super tight with very tight tolerances, I don't think an extra 0.5mm will bend and/or break a PCB.
I was most worried about components on the pcb, when you flex it solder points can crack. I had it happen on a GPU with the thermal grizzly minus pads.
 
Joined
Oct 6, 2020
Messages
81 (1.35/day)
System Name HP Omen DH0105TX Gaming Laptop
Processor I7 9750H
Motherboard Omen
Cooling Omen
Memory 16gb
Video Card(s) RTX 2060
Storage 512 mvne + 2tb ssd
Display(s) Omen X25F
Case Omen
Audio Device(s) Logitec, Omen Mindframe
Power Supply Omen
Mouse Omen Reactor
Keyboard Omen Sequencer
Software Windows 10
Thermal Grizzly minus pad, do you think is good?
 
Joined
Jul 21, 2018
Messages
649 (0.75/day)
Location
Germany
System Name FATTYDOVE-R-SPEC
Processor Intel i9 10980XE
Motherboard EVGA X299 Dark
Cooling Water (1x 240mm, 1x 280mm, 1x 420mm + Mo-Ra 360 external radiator)
Memory 32GB DDR4
Video Card(s) RTX 2080 Super
Storage Crucial MX500
Display(s) 24", 1440p, freesync, 144hz
Case Open Benchtable (OBT)
Audio Device(s) beyerdynamic MMX 300
Power Supply EVGA Supernova T2 1600W
Mouse OG steelseries Sensei
Keyboard steelseries 6Gv2
Software Windows 10
Thermal Grizzly minus pad, do you think is good?
They get the job done. I used them on GPU VRMs and a few times on desktop mainboards for the VRMs.
 
Joined
Jul 25, 2006
Messages
7,711 (1.47/day)
Location
Nebraska, USA
System Name Brightworks Systems BWS-6 E-IV
Processor Intel Core i5-6600 @ 3.9GHz
Motherboard Gigabyte GA-Z170-HD3 Rev 1.0
Cooling Quality case, 2 x Fractal Design 140mm fans, stock CPU HSF
Memory 16GB (2 x 8GB) DDR4 3000 Corsair Vengeance
Video Card(s) EVGA GEForce GTX 1050Ti 4Gb GDDR5
Storage Samsung 850 Pro 256GB SSD, Samsung 860 Evo 500GB SSD
Display(s) Samsung S24E650BW LED x 2
Case Fractal Design Define R4
Power Supply EVGA Supernova 550W G2 Gold
Mouse Microsoft Wireless 5000
Keyboard Microsoft Wireless Comfort 5050
Software W10 Pro 64-bit
There are tons of reasons,
:( I know that. I never said there are no reasons. I said "just because they are old" is not one of them. That's why I asked the OP "why"?

Without additional information - hence the "why?" all your reasons are just speculations and "what ifs".
I dont think factory thermal pads would last very long
And there we go. Factory pads can easily last many many years - if not disturbed. That is, if the cured bond between the mating surfaces is not broken.

Yes, there are better TIMs out there. But if you "need" the few degrees a better TIM gives you to keep from crossing over thermal protection thresholds, you have other cooling issues you need to address first - like cleaning out dust and ensuring your fans are spinning properly. Perhaps consider a cooling pad.

While replacing TIM is not the most technically challenging task, it is, by far, not the most menial either. It is a task that requires manual dexterity as well as technical know-how. There are risks involved that can potentially cause much greater damage than good. Replacing TIM should not be attempted without cause. And I have not seen cause here - yet.
 
Joined
Mar 18, 2015
Messages
2,868 (1.37/day)
Location
Long Island
You don't remove the "original thermal pads" just like you don't remove the stock cooler because it is "old" ... you remove and replace it because you want something better than the cheap stuff the component originally came with. Here are some instances where you would want to change thermal pads ....

a) They were never installed ... EVGA 1060 - 1080 SC and FTWs for example.
b) You are swapping out cooler for a water block
c) Your VRM temps are higher than shown in reviews (adjusted for ambients) and perhaps you have a poor mount due to a crease in pad or other reasons
d) You want to improve cooling versus the cheap / crappy pads that were installed at the factory

We use Fijipoly pads ... they come in many sizes, we usually buy sheets and cut to fit. Often tough to find out the actual thickness and when taking off the originals that have been under 40-70 pounds of pressure, they may not recover full thickness. Consulting water block manufacturers instructions is a good source of info.

What is "better" is eveidence by the heat transfer rate, the more heat they move, the better. They (Fujipoly's) come in various performance quality levels:

Thermal Conductivity 6.0 W/mK
Thermal Conductivity 11.0 W/mK
Thermal Conductivity 17.0 W/mK

Other manufacturers sell pads as low as 6.0 W/mK which is probably what you get from the factory.

Good info here:


The Thermal Grizzly Pads are only 8.0 W/mK
 
Joined
Jul 25, 2006
Messages
7,711 (1.47/day)
Location
Nebraska, USA
System Name Brightworks Systems BWS-6 E-IV
Processor Intel Core i5-6600 @ 3.9GHz
Motherboard Gigabyte GA-Z170-HD3 Rev 1.0
Cooling Quality case, 2 x Fractal Design 140mm fans, stock CPU HSF
Memory 16GB (2 x 8GB) DDR4 3000 Corsair Vengeance
Video Card(s) EVGA GEForce GTX 1050Ti 4Gb GDDR5
Storage Samsung 850 Pro 256GB SSD, Samsung 860 Evo 500GB SSD
Display(s) Samsung S24E650BW LED x 2
Case Fractal Design Define R4
Power Supply EVGA Supernova 550W G2 Gold
Mouse Microsoft Wireless 5000
Keyboard Microsoft Wireless Comfort 5050
Software W10 Pro 64-bit
you remove and replace it because you want something better than the cheap stuff the component originally came with.

d) You want to improve cooling versus the cheap / crappy pads that were installed at the factory
No. "Wanting" something better is not a valid reason for "need".

"Wanting" to improve cooling is totally different from "needing" to improve cooling. If temps are comfortably within normal operating temps, there is no "need" to replace the TIM - except to stroke your own ego by giving you bragging rights.

When the temps are within the "normal" operating range, making them cooler does NOT improve performance, make the system more stable, or increase lifespan. In other words, "If it ain't broke, don't fix it!"

FTR, there is nothing wrong with "wanting" cooler temps. Just don't try to rationalize it, or justifying potential risky tasks by pretending cooler temps are "needed" when they aren't.
 
Top