Pro/Forums - View Single Post - Heatsink Conversion -> Pelt Waterblock

koslov · 04-25-2003, 12:48 AM

After reading about some people's success with converting pin- or fin-type heatsinks into waterblocks, I decided to give it a try myself. I chose the Dynatron DC1U-B04, for it's high density fins and large surface area. It also has a flat bottom, with no groove for the socket cam. Well, just how big is it?

Full specs:
Material: Copper C1020
Dimension: 100x74x29
Pitch: 1.5 mm
Thickness of fin: 0.45 mm
Number of fins: 49
Height of fin: 9 mm
Height of base: 3.5 mm
Length of base: 100 mm

The plan:
This Socket 940 (Hammer) heatsink will be transformed into a waterblock for a 40 x 40mm peltier, to go on a socket A. As you can see from the last pic, the fin ratio is imperfect for watercooling, but I am still expecting good performance. I plan to chop off most of the fin area, leaving only a 50 x 50 area left in the center. Much of the baseplate will have to be chopped off too, just to fit on a Socket A mobo. The fins will also be cut down to a height of 4-5mm. I will top the block with 1/2" Lexan, which will have two barbs. Each entry will have a flow separator channel carved into the bottom of the Lexan, to try to equalize flow among the fins.

Construction
First, I would like to cut the baseplate to size (probably 80 x 74mm) with a table saw, leaving small pieces with fins still attached. These I'll use for VGA RAM cooling

.

Then I want to trim back the fins to their 50 x 50mm area, probably using my dremel.

Next I'll sand the fins down to a height of 4-5mm using a belt sander.

The Lexan top will be drilled out to make a cap for the block, with the cavity covering the fins. The flow separators will also be made using a drill press. I'll tap the Lexan about halfway in for the Poly barbs, leaving room for the flow separator.

The mounting to the coldplate will be accomplished with 4 screws going through the baseplate.

PS: If you want to order one, you can email or call Dynatron directly, and they will send you your heatsink for a small shipping charge and sales tax if you live in CA. This one was $29, plus $6 UPS ground and sales tax.

04-25-2003, 12:48 AM	#1
koslov Cooling Savant Join Date: Jul 2002 Location: Posts: 264	Heatsink Conversion -> Pelt Waterblock After reading about some people's success with converting pin- or fin-type heatsinks into waterblocks, I decided to give it a try myself. I chose the Dynatron DC1U-B04, for it's high density fins and large surface area. It also has a flat bottom, with no groove for the socket cam. Well, just how big is it? Full specs: Material: Copper C1020 Dimension: 100x74x29 Pitch: 1.5 mm Thickness of fin: 0.45 mm Number of fins: 49 Height of fin: 9 mm Height of base: 3.5 mm Length of base: 100 mm The plan: This Socket 940 (Hammer) heatsink will be transformed into a waterblock for a 40 x 40mm peltier, to go on a socket A. As you can see from the last pic, the fin ratio is imperfect for watercooling, but I am still expecting good performance. I plan to chop off most of the fin area, leaving only a 50 x 50 area left in the center. Much of the baseplate will have to be chopped off too, just to fit on a Socket A mobo. The fins will also be cut down to a height of 4-5mm. I will top the block with 1/2" Lexan, which will have two barbs. Each entry will have a flow separator channel carved into the bottom of the Lexan, to try to equalize flow among the fins. Construction First, I would like to cut the baseplate to size (probably 80 x 74mm) with a table saw, leaving small pieces with fins still attached. These I'll use for VGA RAM cooling . Then I want to trim back the fins to their 50 x 50mm area, probably using my dremel. Next I'll sand the fins down to a height of 4-5mm using a belt sander. The Lexan top will be drilled out to make a cap for the block, with the cavity covering the fins. The flow separators will also be made using a drill press. I'll tap the Lexan about halfway in for the Poly barbs, leaving room for the flow separator. The mounting to the coldplate will be accomplished with 4 screws going through the baseplate. PS: If you want to order one, you can email or call Dynatron directly, and they will send you your heatsink for a small shipping charge and sales tax if you live in CA. This one was $29, plus $6 UPS ground and sales tax. Last edited by koslov; 04-25-2003 at 12:53 AM.