nevergoodenuf
Well-Known Member
ttystikk, One of the problems is the pad for the COB. I had to look for one that had atleast a 55mm pad and I didn't want to look at anything over $80. And only found one that would work for me. The next problem is now the COB cover the whole pad. So you have no place to drill your mounting hole and if you did, how far before you hit water? I ended up making my own COB holder and insulator so I could sandwich it between the fixture and the pump/pad. I can now get 320 watt heat sinks for Flip Chip cheaper and is only 2" or 3" taller than the water cool CPU. It made for a light (as in weight) and cool looking hood. If you wanted it to be reliable, you would have to add some type of safety. Maybe a 12v solenoid on the pump and fan side and the solenoids on/off side cut power to the positive from the driver? To much headache, but they do work, I had 640+ watts of cooling for 660 watts of COBs (2). I am still waiting to see if Luna 300s can pull over a gram per watt running a little over nominal (303 watts). The Coolbays seem to be keep them cool at 330 watts. But there is a wall fan always blowing on it. I am really liking them on the HLG240 though. The spread is excellent. Two more months and I should have a total for the room. I might add 500 more to the room, but I am not sure where. I am still under 2600 watts right now and my goal is over 5 pounds.