Overclock.net › Forums › Cooling › Cooling Experiments › How to: Make the best video ram heatsinks
New Posts  All Forums:Forum Nav:

How to: Make the best video ram heatsinks

post #1 of 26
Thread Starter 
Edit- I have redone this guide(partially) with new pic's and such, changed title to less confusing, ect. If an admin sees this, please move it to the FAQ's when possible.

This guide is to teach you how to make the best copper/aluminum heat sinks ever! These are used to cool the memory on your video card or any other small chips. Here is a picture of a finished product.

The heatsinks have a copper base and a copper heatpipe that send heat to copper and aluminum fins for dissipation. I have tested these in a variety of ways, and they heat up very quickly when placed on a hot surface, and cool down very quickly when removed. They helped me get a 40% OC on my old video card (sry i don't have the temps, it was an old fx5200) These are also very cheap to make, and work much better than the "ghetto penny mod".They have loads of surface area (mine have about 10" square each) and near a fan, can move a ton of heat. Even as passive coolers, these things rock.

All you need is-
Some U.S. pennies made before 1982
Copper Wire
Empty Coke Can
Copper Paper(at your hardware store)
Copper Nails
Heres a picture of the parts.-
http://www.rigshowcase.com/img/35393kdt/9183.jpg
Heres the actual construction method-
Find a drill bit just barely smaller than the size of your copper nail. You will want a tight fit.
Cut the aluminum can into squares of aluminum. These will be your fins, so make them as big as you would like them. About an inch would be good.
Do not make them so large that they will interfere with each other when put on the chips. Use the drill bit and drill a hole into the center of the aluminum fins and through the center of the penny. You need three per heatsink.

Cut a square of the copper foil a half inch bigger than the aluminum.

Cut the wire into short lengths just long enough to wrap around the copper nail without the ends touching. You need 6 per heatsink.

http://www.rigshowcase.com/img/35393kdt/8479.jpg

Once these are prepared, put them all on the nail as shown in the following picture. Solder each piece with just a drop to keep it in place.



Once on, squeeze the wire pieces with the pliers to lock them into place. The penny may be hard to fit on the nail, you might have to use pliers or something to get it on.

The piece of copper sets atop the top aluminum fin and copper nail and folds over the sides of the top. Once you have this all on, cut the end of the nail sticking out the other side of the penny off and grind or sand the nail and the penny down to an even smooth surface. If you want, you can lap the bottom of the heatsink for best results.

http://www.rigshowcase.com/img/35393kdt/9186.jpg

http://www.rigshowcase.com/img/35393kdt/9187.jpg

Once the pieces are all on and soldered down, there is very good thermal flow between the parts, even between the nail and the aluminum fins.

Everyone that is reading this needs to make a set and give them a try. To those who are bashing my work, i appreciate constructive criticism. If you don't like them, tell me how i should make them better. Simply posting "OMG tat blowzes" proves nothing but your low maturity level. Most readers tend to ignore posts like this anyway.

If you have any comments or suggestions, shoot me a pm or post in the reply.
Price/Power
(13 items)
 
  
CPUMotherboardGraphicsRAM
Q6600 (G0) EVGA 680i LT 8800GT 512 4GB G-Skill 800 
Hard DriveOptical DriveOSMonitor
2x Seagate 250GB 7200.10 DVD-RW w/ Lightscribe Vista x64 Home Premium 22" 1680*1050 
PowerCaseMouse
Rosewill 550 Cooler Master Wireless Optical 
  hide details  
Reply
Price/Power
(13 items)
 
  
CPUMotherboardGraphicsRAM
Q6600 (G0) EVGA 680i LT 8800GT 512 4GB G-Skill 800 
Hard DriveOptical DriveOSMonitor
2x Seagate 250GB 7200.10 DVD-RW w/ Lightscribe Vista x64 Home Premium 22" 1680*1050 
PowerCaseMouse
Rosewill 550 Cooler Master Wireless Optical 
  hide details  
Reply
post #2 of 26
...It actually doesnt have a copper heatpipe at all. And, they wouldn't work well at all with Zalman heatsinks, as air would have to flow parallel to the GPU card, not straight down, as is what happens with Zalman HS's, and other similar GPU HS's.

It just seems pointless, with the fact the aluminium fins make awfully poor contact with the copper nail, which isnt even delivering much heat for removal.
post #3 of 26
Quote:
Originally Posted by thealmightyone View Post
...It actually doesnt have a copper heatpipe at all. And, they wouldn't work well at all with Zalman heatsinks, as air would have to flow parallel to the GPU card, not straight down, as is what happens with Zalman HS's, and other similar GPU HS's.

It just seems pointless, with the fact the aluminium fins make awfully poor contact with the copper nail, which isnt even delivering much heat for removal.
lol man why dont you just say his idea sucks!

I give you made props man good show great work!
Laptop
(13 items)
 
  
CPUGraphicsRAMHard Drive
Athlon-II P320 DualCore 2.1GHz AMD M880G with ATI Mobility Radeon HD 4250 3GB 250GB 
Optical DriveOSMonitorKeyboard
DVD/RW Windows 7 Home Premium 64Bit 24in 1080p Viewsonic Wireless 
Mouse
Wireless 
  hide details  
Reply
Laptop
(13 items)
 
  
CPUGraphicsRAMHard Drive
Athlon-II P320 DualCore 2.1GHz AMD M880G with ATI Mobility Radeon HD 4250 3GB 250GB 
Optical DriveOSMonitorKeyboard
DVD/RW Windows 7 Home Premium 64Bit 24in 1080p Viewsonic Wireless 
Mouse
Wireless 
  hide details  
Reply
post #4 of 26
1) Are pennies even 100% copper anymore?
2) Instead of one or piece construction, there are multiple components. Hence, a lot of inefficent thermal transfer due to air bubbles and poor contact.
3) Is there really that much surface area?
4) No fan mounts?
5) Solder is usually lead and tin. Not nearly as conductive as aluminum and copper.
6) How is mounted on the chipset?
7) Are soda cans pure aluminum? Is there any coating on the aluminum?

A Thermalrigh HR-05 or Jing Ting Force would easily beat this HS.
Once again...
(13 items)
 
  
CPUMotherboardGraphicsRAM
i7 920 [4.28GHz, HT] Asus P6T + Broadcom NetXtreme II VisionTek HD5850 [900/1200] + Galaxy GT240 2x4GB G.Skill Ripjaw X [1632 MHz] 
Hard DriveOSMonitorKeyboard
Intel X25-M 160GB + 3xRAID0 500GB 7200.12 Window 7 Pro 64 Acer H243H + Samsung 226BW XARMOR-U9BL  
PowerCaseMouseMouse Pad
Antec Truepower New 750W Li Lian PC-V2100 [10x120mm fans] Logitech G9 X-Trac Pro 
  hide details  
Reply
Once again...
(13 items)
 
  
CPUMotherboardGraphicsRAM
i7 920 [4.28GHz, HT] Asus P6T + Broadcom NetXtreme II VisionTek HD5850 [900/1200] + Galaxy GT240 2x4GB G.Skill Ripjaw X [1632 MHz] 
Hard DriveOSMonitorKeyboard
Intel X25-M 160GB + 3xRAID0 500GB 7200.12 Window 7 Pro 64 Acer H243H + Samsung 226BW XARMOR-U9BL  
PowerCaseMouseMouse Pad
Antec Truepower New 750W Li Lian PC-V2100 [10x120mm fans] Logitech G9 X-Trac Pro 
  hide details  
Reply
post #5 of 26
Nice idea, something I would try on one of the older systems.
Flux
(13 items)
 
  
CPUMotherboardGraphicsRAM
i7 2600K GA-P67A-UD7 GTX 580 2 x 2GB Corsair 
Hard DriveOptical DriveOSMonitor
C300 (OS), Velociraptor (storage) Lite-On W7 64-bit Pro Samsung 275T 
KeyboardPowerCaseMouse
Black Widow Ult. Silverstone DA750 Lian Li T60 R.A.T. 7 
Mouse Pad
Q-Pad 
  hide details  
Reply
Flux
(13 items)
 
  
CPUMotherboardGraphicsRAM
i7 2600K GA-P67A-UD7 GTX 580 2 x 2GB Corsair 
Hard DriveOptical DriveOSMonitor
C300 (OS), Velociraptor (storage) Lite-On W7 64-bit Pro Samsung 275T 
KeyboardPowerCaseMouse
Black Widow Ult. Silverstone DA750 Lian Li T60 R.A.T. 7 
Mouse Pad
Q-Pad 
  hide details  
Reply
post #6 of 26
AARDVARCUS: I wanna see some pics of it in action... Do you actually use it yourself? Temps please?
The Beast
(9 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core i7 7700K @ 5.0 GHz Asus MAXIMUS VIII RANGER Zotac GTX 1070 AMP! Extreme G.Skill DDR4-3200 CL14 
Hard DriveCoolingOSPower
Crucial MX300 275GB M.2-2280 Corsair H115i  Windows 10 Pro 64-Bit SeaSonic 650W 80+ Gold  
Case
CoolerMaster Masterbox 
  hide details  
Reply
The Beast
(9 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core i7 7700K @ 5.0 GHz Asus MAXIMUS VIII RANGER Zotac GTX 1070 AMP! Extreme G.Skill DDR4-3200 CL14 
Hard DriveCoolingOSPower
Crucial MX300 275GB M.2-2280 Corsair H115i  Windows 10 Pro 64-Bit SeaSonic 650W 80+ Gold  
Case
CoolerMaster Masterbox 
  hide details  
Reply
post #7 of 26
Got to say I have never seen that before...Which is amazing since almost everything has been done a thousand times over..........But I'm going to have to stick with my Swifty MCX159 for my NB....
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
E8600 4545Mhz*9 w/1.29V DFI DK P45 XFX 8800 GS D9GKX & D9GMH 
Hard DriveOptical DriveOSPower
2x Seagate 160 Perp. RD-1 2x Asus Vista Premium Corsair HX 620 
Case
Open Bench 
  hide details  
Reply
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
E8600 4545Mhz*9 w/1.29V DFI DK P45 XFX 8800 GS D9GKX & D9GMH 
Hard DriveOptical DriveOSPower
2x Seagate 160 Perp. RD-1 2x Asus Vista Premium Corsair HX 620 
Case
Open Bench 
  hide details  
Reply
post #8 of 26
I believe it was in the late 1980s that the pennys were converted to copper plated zink.

Interesting work though
    
CPUMotherboardGraphicsRAM
X4 965 ASUS M4A79 Deluxe 9800GTx2 2x2G OCZ Reapers 
Hard DriveOptical DriveOSMonitor
500G WD Black LiteOn CD/DVD R/W Win7 64 22'' ws Acer AL2223W 
KeyboardPowerMouse
MS KU462 Natural SS DA750 MS 5 button 
  hide details  
Reply
    
CPUMotherboardGraphicsRAM
X4 965 ASUS M4A79 Deluxe 9800GTx2 2x2G OCZ Reapers 
Hard DriveOptical DriveOSMonitor
500G WD Black LiteOn CD/DVD R/W Win7 64 22'' ws Acer AL2223W 
KeyboardPowerMouse
MS KU462 Natural SS DA750 MS 5 button 
  hide details  
Reply
post #9 of 26
Yeah they used to be 95% copper and 5% tin? Either Sn or Zn... whatever, it was only there to harden it. I forget. Either way, I believe it's 1983 they changed over to the 95% Zn 5% Cu... in other words, copper plating.
Raptor Raper
(13 items)
 
  
CPUMotherboardGraphicsRAM
Something with transistors FOXCONN Boodrage -> eVGA classified e760 GTX 480 / HD6850@1090/1200 3x2 gig G Skill Trident DDR2000 
Hard DriveOptical DriveOSMonitor
2x128GB Crucial C300 Sumsung SATA DVD-RW 64 bit Windows 7 Samsung 245BW 
KeyboardPowerCaseMouse
Microsoft curve Tagan ITZ 800W DD Torture Rack Diamondback 
  hide details  
Reply
Raptor Raper
(13 items)
 
  
CPUMotherboardGraphicsRAM
Something with transistors FOXCONN Boodrage -> eVGA classified e760 GTX 480 / HD6850@1090/1200 3x2 gig G Skill Trident DDR2000 
Hard DriveOptical DriveOSMonitor
2x128GB Crucial C300 Sumsung SATA DVD-RW 64 bit Windows 7 Samsung 245BW 
KeyboardPowerCaseMouse
Microsoft curve Tagan ITZ 800W DD Torture Rack Diamondback 
  hide details  
Reply
post #10 of 26
Thread Starter 
I will try to answer all the questions-

Contact- There is pretty good contact between the nail and the aluminum, because it is a tight fit, there is the copper wire pressing both sides and the solder holds it well. This can be improved by using thermal compound before sticking together, but the fits are so tight, there is pretty good.

Fan mounts- These things are extremely small. Even a 40mm fan is way to huge.

Surface area- About 6 square inches for the model i made. You can add more fins or make them larger to get more.

The solder is just to hold it tight together, not for thermal conductivity(though it does help a bit).

Real world tests- So far the only tests i have done are putting it on hot things and seeing how quickly the fins heat up. When set on a warm fireplace, the fins warm up in about a second. I WILL do temp tests as soon as i make a few more to put on my old video card.

The aluminum can is very high % aluminum. It does have ink stamped on one side and you can lightly sand it with 400ish sandpaper to remove it.

Pennies- As i said in guide, pennies before 1982 are about 95% copper.

I am glad everyone enjoys it, and i hope i can make a few more in the next week or so and can post some temp tests!
Price/Power
(13 items)
 
  
CPUMotherboardGraphicsRAM
Q6600 (G0) EVGA 680i LT 8800GT 512 4GB G-Skill 800 
Hard DriveOptical DriveOSMonitor
2x Seagate 250GB 7200.10 DVD-RW w/ Lightscribe Vista x64 Home Premium 22" 1680*1050 
PowerCaseMouse
Rosewill 550 Cooler Master Wireless Optical 
  hide details  
Reply
Price/Power
(13 items)
 
  
CPUMotherboardGraphicsRAM
Q6600 (G0) EVGA 680i LT 8800GT 512 4GB G-Skill 800 
Hard DriveOptical DriveOSMonitor
2x Seagate 250GB 7200.10 DVD-RW w/ Lightscribe Vista x64 Home Premium 22" 1680*1050 
PowerCaseMouse
Rosewill 550 Cooler Master Wireless Optical 
  hide details  
Reply
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Cooling Experiments
Overclock.net › Forums › Cooling › Cooling Experiments › How to: Make the best video ram heatsinks