Overclock.net › Forums › Graphics Cards › NVIDIA › How much of an impact can replacing thermal paste in a GPU do?
New Posts  All Forums:Forum Nav:

How much of an impact can replacing thermal paste in a GPU do? - Page 4

post #31 of 78
If you think theres anything to be gained from it, just do it (though mind the fan connectors when removing the hsf, the cords are likely short). It's a $10 partial fix for thermal throttling. I checked my own card and found the stock grease slathered all over everything, entirely too much paste, covering the entire die and 3/4 of the resistors surrounding the die. After cleaning everything up and using the same amount of MX-2 i would use for a cpu, i no longer throttle in firestrike using the same fan curve.

At the very worst your only going to prove that the original paste was sufficient and therefor wasted 20 minutes of your time and a negligble amount of paste,

Also, if your ambient temps are that high, every little bit is going to help.
post #32 of 78
Quote:
Originally Posted by Kaltenbrunner View Post

I might have seen up to 5C difference on my 6950s, but honestly I've been running my i7-2700k without ANYTHING beteween it and a SilverArrow 2x140mm, and the temps where still fine at 50-60max. And I lately unplugged 1 fan for collision avoidance, and the temp hardly changed then either.


If u have a good enough fan, and an open case, its no big deal, and u might not even notice as I have not lately.

Why would you run without thermal paste? Seems like a bad idea.
Quote:
Originally Posted by hsjj3 View Post

I would definitely prefer not to damage the thermal pads. I was told its fine if they stick to the cooler/shroud when I remove the cover to unveil the internal of the GPU...and that I just need to stick em back whence they came from? That should do the trick right?

Yeah, pretty much you just want to avoid tearing them.
Deepthought
(15 items)
 
Baldr
(14 items)
 
Terminal Dogma
(6 items)
 
CPUMotherboardGraphicsRAM
AMD A10-7850K MSI A88XM-GAMING Integrated Crucial Ballistix Sport  
Hard DriveCoolingCoolingCooling
Samsung 850 EVO  Prolimatech Genesis Black 2x Phanteks PH-F140HP 3x Noctua NF-P14S 
OSMonitorKeyboardCase
Debian 8 Samsung UN55H6350AFXZA Dell Generic Nanoxia Deep Silence 5 
MouseOther
Logitech G402 HP NC364T 
CPUGraphicsRAMHard Drive
Intel Core I3 M370 Intel HD Toshiba Samsung 850 EVO 
OSOS
Windows 7 Ultimate Fedora 21 
  hide details  
Reply
Deepthought
(15 items)
 
Baldr
(14 items)
 
Terminal Dogma
(6 items)
 
CPUMotherboardGraphicsRAM
AMD A10-7850K MSI A88XM-GAMING Integrated Crucial Ballistix Sport  
Hard DriveCoolingCoolingCooling
Samsung 850 EVO  Prolimatech Genesis Black 2x Phanteks PH-F140HP 3x Noctua NF-P14S 
OSMonitorKeyboardCase
Debian 8 Samsung UN55H6350AFXZA Dell Generic Nanoxia Deep Silence 5 
MouseOther
Logitech G402 HP NC364T 
CPUGraphicsRAMHard Drive
Intel Core I3 M370 Intel HD Toshiba Samsung 850 EVO 
OSOS
Windows 7 Ultimate Fedora 21 
  hide details  
Reply
post #33 of 78
Thread Starter 
Ok guys, just to confirm, the same thermal paste compound can be used for a CPU and GPU right?

I'm seeing that two extra materials needed are: Lint-free cloth and 70% alcohol.

Are lint-free clots the clots that you use to clean spectacles/eyeglasses?

Is it absolutely necessary to use the alcohol? Any substitutes?
post #34 of 78
Quote:
Originally Posted by hsjj3 View Post

Ok guys, just to confirm, the same thermal paste compound can be used for a CPU and GPU right?

I can't quite remember, but I think so. Look around some (and don't take me word for it lol) and hopefully someone else will chime in. There was a thread with a topic like this, I'll see if I can find it. What thermal paste do you have on hand?

Edit: Can't find the thread I'm looking for. Make sure that the TIM you're going to use isn't conductive, as now you're applying the TIM to the die, rather than an IHS like with a CPU
Quote:
Originally Posted by hsjj3 View Post

I'm seeing that two extra materials needed are: Lint-free cloth and 70% alcohol.

Yup, but I'd go higher than 70%, personally, I use 90%. I think that anything over 70% is fine though, and at that point, evaporation time is the difference.
Quote:
Originally Posted by hsjj3 View Post

Are lint-free clots the clots that you use to clean spectacles/eyeglasses?

Yeap, those are the ones. Also called microfiber cloths.
Quote:
Originally Posted by hsjj3 View Post

Is it absolutely necessary to use the alcohol? Any substitutes?

The only thing that I would use as a substitute (if you don't have any alcohol, and can't find any) is the Arcticlean cleaning kit. Would definitely use alcohol first.
Edited by maddangerous - 6/3/16 at 10:47am
Deepthought
(15 items)
 
Baldr
(14 items)
 
Terminal Dogma
(6 items)
 
CPUMotherboardGraphicsRAM
AMD A10-7850K MSI A88XM-GAMING Integrated Crucial Ballistix Sport  
Hard DriveCoolingCoolingCooling
Samsung 850 EVO  Prolimatech Genesis Black 2x Phanteks PH-F140HP 3x Noctua NF-P14S 
OSMonitorKeyboardCase
Debian 8 Samsung UN55H6350AFXZA Dell Generic Nanoxia Deep Silence 5 
MouseOther
Logitech G402 HP NC364T 
CPUGraphicsRAMHard Drive
Intel Core I3 M370 Intel HD Toshiba Samsung 850 EVO 
OSOS
Windows 7 Ultimate Fedora 21 
  hide details  
Reply
Deepthought
(15 items)
 
Baldr
(14 items)
 
Terminal Dogma
(6 items)
 
CPUMotherboardGraphicsRAM
AMD A10-7850K MSI A88XM-GAMING Integrated Crucial Ballistix Sport  
Hard DriveCoolingCoolingCooling
Samsung 850 EVO  Prolimatech Genesis Black 2x Phanteks PH-F140HP 3x Noctua NF-P14S 
OSMonitorKeyboardCase
Debian 8 Samsung UN55H6350AFXZA Dell Generic Nanoxia Deep Silence 5 
MouseOther
Logitech G402 HP NC364T 
CPUGraphicsRAMHard Drive
Intel Core I3 M370 Intel HD Toshiba Samsung 850 EVO 
OSOS
Windows 7 Ultimate Fedora 21 
  hide details  
Reply
post #35 of 78
The other thing that would help a ton bring the temps down.. if you can put a 120mm fan blowing air into the space below the video card.
Yes I know there isn't a fan mount here, but you could probably zip tie it to the hard drive cage without an issue.

Doing this would require you to clean up the cable management, so no cables get caught in the fan though. smile.gif

post #36 of 78
Thread Starter 
Quote:
Originally Posted by Shadowdane View Post

The other thing that would help a ton bring the temps down.. if you can put a 120mm fan blowing air into the space below the video card.
Yes I know there isn't a fan mount here, but you could probably zip tie it to the hard drive cage without an issue.

Doing this would require you to clean up the cable management, so no cables get caught in the fan though. smile.gif

I had already done a better job at cable management (I think) but it didn't yield and appreciable improvement in temperature. http://i.stack.imgur.com/2FFrh.jpg

I had thoroughly considered removing the HDD cage and putting the HDD into the DVD bay, but the cage is riveted/bolted in to the side of the casing.

At this point I have sadly conceded defeat in installing an intake fan. What I have considered is getting a higher CFM rear case fan that should help draw out the GPU's hot air more effectively, but it would at best gain me 2-3C reductions.

I read on the Internet that even at worst, temps should get better by 2-3C replacing the factory thermal paste. It's a nice experiment to try. I will be doing it tomorrow night. I got a Xigmatek G4718 which is what my local store has. Not great but it's decent enough when looking at some benchmarks. http://www.amazon.com/Xigmatek-Freezing-Point-Thermal-Compound/dp/B0078IWR3U

My only problem is I have no alcohol at hand, and I read on some sites that it's fine to just use a lint-free cloth to force off the thermal paste.
post #37 of 78
Just get the alcohol. It's cheap, & you'll be glad you have it. I got 91% isopropyl alcohol from Walgreens for less than $3. I would start by using some small paper towels to wipe off the bulk & just tossing them. Once you get it down to metal, then start using the alcohol to take off anything that doesn't wipe off easily. If you want to use lint free cloths, wait until you've got the bulk off. There's no need to waste them wiping of globs of grease.

Edit: Your new cable management at least looks easier to work around, whether it helped temps or not.

Edit 2: I'm looking at my card, & I don't think you'll have any thermal pads to worry about. I don't see any points of contact between the heatsink & board other than the contact at the actual chip, the standoffs, & a rubber pad at the rear. It also looks like they used quite a bit of paste in mine. I actually see paste extending all the way around the chip. If you don't have any negative effects from repasting yours, I'm probably going to do mine as well just to see the results.
Edited by dlewbell - 6/3/16 at 12:58pm
Gigabyte Z170
(23 items)
 
 
Brother's Machine
(15 items)
 
CPUMotherboardGraphicsRAM
i5-6600k GIGABYTE G1.Sniper Z170 EVGA GeForce GTX 1070 FTW Corsair Vengeance LPX 16GB (2 x 8GB) DDR4-3000 
Hard DriveHard DriveOptical DriveCooling
Samsung 950 Pro 512GB M.2280 Seagate Barracuda 2TB 3.5" 7200RPM LG WH14NS40 Blu-Ray/DVD/CD Writer Phanteks PH-TC14PE_BL 
CoolingCoolingCoolingCooling
Phanteks PH-F140SP Phanteks PH-F140SP Phanteks PH-F140SP Phanteks PH-F140SP 
CoolingCoolingOSMonitor
Phanteks PH-F140SP Phanteks PH-F120SP Windows 10 Pro Visio E601i-A3 
KeyboardPowerCaseMouse
Logitech K400 EVGA SuperNOVA 750 G2 Phanteks Enthoo Luxe Logitech G600 MMO 
OtherOtherOther
XBox One Controller Reeven Four Eyes Touch HTC Vive 
CPUMotherboardRAMHard Drive
Pentium G4560 ASUS H110M-A/M.2 Corsair Vengeance LPX Western Digital Caviar Blue 
Hard DriveCoolingOSPower
Western Digital Caviar Blue Cryorig H7 Undecided EVGA Supernova G2 750W 
CaseOther
Corsair Air 540 Phanteks PH-F140SP 
CPUMotherboardGraphicsRAM
i3-2120 ACER IPISB-VR EVGA GTX 260 3x2GB DDR3 
Hard DriveOptical DriveOptical DriveCooling
Wester Digital Green ASUS DVD RW DVD RW Stock Cooler 
CoolingCoolingCoolingOS
Noctua NF-S12B Redux-1200 Noctua NF-S12B Redux-1200 Noctua NF-S12B Redux-1200 Windows 10 Pro 
PowerCaseMouse
Thermaltake TR2 500W Corsair Carbide Spec-01 Microsoft Intellimouse 
  hide details  
Reply
Gigabyte Z170
(23 items)
 
 
Brother's Machine
(15 items)
 
CPUMotherboardGraphicsRAM
i5-6600k GIGABYTE G1.Sniper Z170 EVGA GeForce GTX 1070 FTW Corsair Vengeance LPX 16GB (2 x 8GB) DDR4-3000 
Hard DriveHard DriveOptical DriveCooling
Samsung 950 Pro 512GB M.2280 Seagate Barracuda 2TB 3.5" 7200RPM LG WH14NS40 Blu-Ray/DVD/CD Writer Phanteks PH-TC14PE_BL 
CoolingCoolingCoolingCooling
Phanteks PH-F140SP Phanteks PH-F140SP Phanteks PH-F140SP Phanteks PH-F140SP 
CoolingCoolingOSMonitor
Phanteks PH-F140SP Phanteks PH-F120SP Windows 10 Pro Visio E601i-A3 
KeyboardPowerCaseMouse
Logitech K400 EVGA SuperNOVA 750 G2 Phanteks Enthoo Luxe Logitech G600 MMO 
OtherOtherOther
XBox One Controller Reeven Four Eyes Touch HTC Vive 
CPUMotherboardRAMHard Drive
Pentium G4560 ASUS H110M-A/M.2 Corsair Vengeance LPX Western Digital Caviar Blue 
Hard DriveCoolingOSPower
Western Digital Caviar Blue Cryorig H7 Undecided EVGA Supernova G2 750W 
CaseOther
Corsair Air 540 Phanteks PH-F140SP 
CPUMotherboardGraphicsRAM
i3-2120 ACER IPISB-VR EVGA GTX 260 3x2GB DDR3 
Hard DriveOptical DriveOptical DriveCooling
Wester Digital Green ASUS DVD RW DVD RW Stock Cooler 
CoolingCoolingCoolingOS
Noctua NF-S12B Redux-1200 Noctua NF-S12B Redux-1200 Noctua NF-S12B Redux-1200 Windows 10 Pro 
PowerCaseMouse
Thermaltake TR2 500W Corsair Carbide Spec-01 Microsoft Intellimouse 
  hide details  
Reply
post #38 of 78
Thread Starter 
Ok guys, just want to let you know my results. I repeated a 1100 seconds run of Furmark directly before I removed and replaced the paste. Again, I got 89C at 45% fan speed.

The factory-applied thermal paste was actually pretty decently applied. It seemed tidy, though possibly there was just a tiny bit too much of it.

I applied the first time, a small pea in the centre. Closed the thing up. Ran Furmark for two 1100 second runs. Both times the temperature topped out at 85C.

I thought I may have applied too much the first time, so I opened it up again. In fact, it seemed like there was too little. I could see bare metal in places around the centre of the shiny GPU die. Now, this second time, I applied just a bit more...however, sadly now my temperature maxes out at 88C (1C less than before) but curiously my idle temps are 2C higher than the original factory paste application.

I did some more reading, and apparently "less is more" for thermal paste. The GTX 960 die is also extremely small. The first time I applied it, even though bare meta was showing in places around the centre, it spread out very evenly around the entire die.

As such, I think that was the better approach. I will definitely re-apply once or twice more. I will put on a very tiny amount first. If temps are as good or better than 85C, I will leave it. Else, I will apply the amount I had applied the first time I did it.

I took some photos, but it was on my iPad and kinda blurry. I'll link them up here a little later.

Edit: I was shocked to see that there were ZERO thermal pads/heatsinks on the PCB (other than the main heatsink). I compared this to the GTX 960 SSC and the Asus 960...and those have pads and heatsinks on certain components. Would thermal pads improve core GPU temperature by much?

Edit 2: Another interesting observation is that with the first method I used, my temps start out in the mid 40C when I run Furmark. With the original factory application and the second method I had used, the temps start out right away in the mid 50C.
Edited by hsjj3 - 6/4/16 at 10:08pm
post #39 of 78
Thread Starter 
http://m.imgur.com/a/pehQ1

Top two images are after my first application (which reduced my temps to 85C).

Bottom three images are from the original application. You can see in the third image that there are no thermal pads to be seen.
post #40 of 78
So, I decided to repaste as well since it looks like it does help (even if marginally) & because I just wanted something fun to do. I used the Phanteks PH-NDC paste, as it had the better rating of the tubes I had laying around. I took some pictures while I was at it.
Here's what it started with: EVGA Paste (Click to show)




Looks like a bit much to me. Of course it was a pain to clean. I got it the best I could & called it good enough. Check out the gouge on my heatsink as well. Cleaned: No Paste (Click to show)



So, I added my paste, twice actually. The first time I missed with the heatsink & thought it best to clean & reapply. I screwed it back together & reinstalled. Once this was done, I ran a few tests.First, I ran a test at my current overclock & fan curve for 5 minute to compare against the same test run before the repaste. I took screenshots both times, & the results are posted below: Overclocked: Before/After (Click to show)




I also ran tests at totally stock, & at stock clocks with 45% fan speed for comparison. I didn't take screenshots, as my before tests were well before.
Before:
Stock - 75C
45% Fan - 61C
After:
Stock - 73C
45% Fan - 56C

In summary, using typical setups, I'm seeing a 2-3C drop with fan speeds on a curve, & with a constant fan speed, I see a 5C drop. Room ambient temperatures were between 21C & 22C during all tests. I don't know what case temperatures were, as I didn't watch them closely. I'm glad I did it. It likely won't help my overclock, but it should help with noise by allowing lower fan speeds, & it was fun.

Edit: Added pictures of the 2 Furmark runs overlaid to allow for direct comparison of the temperature graphs.
Edited by dlewbell - 6/5/16 at 10:56am
Gigabyte Z170
(23 items)
 
 
Brother's Machine
(15 items)
 
CPUMotherboardGraphicsRAM
i5-6600k GIGABYTE G1.Sniper Z170 EVGA GeForce GTX 1070 FTW Corsair Vengeance LPX 16GB (2 x 8GB) DDR4-3000 
Hard DriveHard DriveOptical DriveCooling
Samsung 950 Pro 512GB M.2280 Seagate Barracuda 2TB 3.5" 7200RPM LG WH14NS40 Blu-Ray/DVD/CD Writer Phanteks PH-TC14PE_BL 
CoolingCoolingCoolingCooling
Phanteks PH-F140SP Phanteks PH-F140SP Phanteks PH-F140SP Phanteks PH-F140SP 
CoolingCoolingOSMonitor
Phanteks PH-F140SP Phanteks PH-F120SP Windows 10 Pro Visio E601i-A3 
KeyboardPowerCaseMouse
Logitech K400 EVGA SuperNOVA 750 G2 Phanteks Enthoo Luxe Logitech G600 MMO 
OtherOtherOther
XBox One Controller Reeven Four Eyes Touch HTC Vive 
CPUMotherboardRAMHard Drive
Pentium G4560 ASUS H110M-A/M.2 Corsair Vengeance LPX Western Digital Caviar Blue 
Hard DriveCoolingOSPower
Western Digital Caviar Blue Cryorig H7 Undecided EVGA Supernova G2 750W 
CaseOther
Corsair Air 540 Phanteks PH-F140SP 
CPUMotherboardGraphicsRAM
i3-2120 ACER IPISB-VR EVGA GTX 260 3x2GB DDR3 
Hard DriveOptical DriveOptical DriveCooling
Wester Digital Green ASUS DVD RW DVD RW Stock Cooler 
CoolingCoolingCoolingOS
Noctua NF-S12B Redux-1200 Noctua NF-S12B Redux-1200 Noctua NF-S12B Redux-1200 Windows 10 Pro 
PowerCaseMouse
Thermaltake TR2 500W Corsair Carbide Spec-01 Microsoft Intellimouse 
  hide details  
Reply
Gigabyte Z170
(23 items)
 
 
Brother's Machine
(15 items)
 
CPUMotherboardGraphicsRAM
i5-6600k GIGABYTE G1.Sniper Z170 EVGA GeForce GTX 1070 FTW Corsair Vengeance LPX 16GB (2 x 8GB) DDR4-3000 
Hard DriveHard DriveOptical DriveCooling
Samsung 950 Pro 512GB M.2280 Seagate Barracuda 2TB 3.5" 7200RPM LG WH14NS40 Blu-Ray/DVD/CD Writer Phanteks PH-TC14PE_BL 
CoolingCoolingCoolingCooling
Phanteks PH-F140SP Phanteks PH-F140SP Phanteks PH-F140SP Phanteks PH-F140SP 
CoolingCoolingOSMonitor
Phanteks PH-F140SP Phanteks PH-F120SP Windows 10 Pro Visio E601i-A3 
KeyboardPowerCaseMouse
Logitech K400 EVGA SuperNOVA 750 G2 Phanteks Enthoo Luxe Logitech G600 MMO 
OtherOtherOther
XBox One Controller Reeven Four Eyes Touch HTC Vive 
CPUMotherboardRAMHard Drive
Pentium G4560 ASUS H110M-A/M.2 Corsair Vengeance LPX Western Digital Caviar Blue 
Hard DriveCoolingOSPower
Western Digital Caviar Blue Cryorig H7 Undecided EVGA Supernova G2 750W 
CaseOther
Corsair Air 540 Phanteks PH-F140SP 
CPUMotherboardGraphicsRAM
i3-2120 ACER IPISB-VR EVGA GTX 260 3x2GB DDR3 
Hard DriveOptical DriveOptical DriveCooling
Wester Digital Green ASUS DVD RW DVD RW Stock Cooler 
CoolingCoolingCoolingOS
Noctua NF-S12B Redux-1200 Noctua NF-S12B Redux-1200 Noctua NF-S12B Redux-1200 Windows 10 Pro 
PowerCaseMouse
Thermaltake TR2 500W Corsair Carbide Spec-01 Microsoft Intellimouse 
  hide details  
Reply
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: NVIDIA
Overclock.net › Forums › Graphics Cards › NVIDIA › How much of an impact can replacing thermal paste in a GPU do?