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Old 23rd August, 2002, 05:39 PM
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Lightbulb AX-7 Waterblock

Here's an idea for any of you that are interested in making your own waterblock...

A few months ago I took a AX-7 heatsink and turned it a waterblock. I have been running it on a slightly overclocked T-bird 1.4 1620 MHz (135 x 12.0) at 1.85 Vcore with good results. It's relatively easy to do if you have access to a vertical mill.

http://w3.one.net/~robotech/images/A...waterblock.jpg http://w3.one.net/~robotech/images/A...aterblock2.jpg

Ambient room air = 23 C, Water = 24.5 C, CPU Folding@Home 24/7 = 34 C
Eheim 1250, custom reservoir, (2) BIE radiators, and 1/2" silicone tube

http://w3.one.net/~robotech/images/A.../AX7_angle.jpg http://w3.one.net/~robotech/images/A...AX7_inside.jpg

I milled two 7/16" dia. holes down to where they just broke thru into the copper base - flat bottoms and then tapped for a little extra wetted surface area. A 3/8" wide slot across the top connects the two holes.

http://w3.one.net/~robotech/images/A...X7_inside2.jpg http://w3.one.net/~robotech/images/A..._injectors.jpg

Water flows into the two outer fittings, down thru the injector tubes and then back up the outside of each tube and out the center fitting. I used a silicone rubber gasket instead of trying to machine an O-ring groove. With the E-1250 I get about 80 GPH flow thru the block.

Soooo, if you have thought of making your own block, this is a pretty easy way to start and when you are done it just clips on... I'm sure there are plenty of other slight design changes that could be tried with this design. Have fun and be cool,

RoboTech
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Old 23rd August, 2002, 06:11 PM
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one word: WOW


That looks a bit complicated to me, as I'm not that handy with metal working. (I wimped and bought a DDMaze3 that works pretty good)
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Old 23rd August, 2002, 07:31 PM
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That is a DAMN nice job my freind! and it gives me something to do with my AX7 that i have laying around!
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Old 24th August, 2002, 12:30 AM
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Nice block RoboTech . . .

Are the two aluminum tubes just pressed in to the top, or are they threaded and screwed in, or welded?

It'd be interesting to do the same, but machine the top so the hose barbs are parallel to the base so that a fan can still be used on the heatsink . . .
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Old 24th August, 2002, 12:50 AM
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Very interesting
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Old 24th August, 2002, 01:47 PM
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Quote:
Originally posted by dimmreaper
Nice block RoboTech . . .

Are the two aluminum tubes just pressed in to the top, or are they threaded and screwed in, or welded?

It'd be interesting to do the same, but machine the top so the hose barbs are parallel to the base so that a fan can still be used on the heatsink . . .
The injector tubes are pressed in. And yes, if I had it to do over again I would mount the fittings at a right angle also. Lots of ways to improve on my original design I'm sure...
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Old 26th August, 2002, 04:04 AM
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thats really cool, but i dont see how you get the water from the 2 inlets to the outlet...
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