ThatKidiscrying
Active Member
What’s the best way to cool a porcupine style “ pin “ heatsink with a small fan blowing air across it from the side or laying the fan on top and having it blow straight up drawing air through it ?
I would sit a fan on top of the pin heatsink and have it blowing air down through the fins.What’s the best way to cool a porcupine style “ pin “ heatsink with a small fan blowing air across it from the side or laying the fan on top and having it blow straight up drawing air through it ?
Never pull air through fins, but push it down Into them.What’s the best way to cool a porcupine style “ pin “ heatsink with a small fan blowing air across it from the side or laying the fan on top and having it blow straight up drawing air through it ?
As an aside, looking at images of HLG96 / 360 Elites with the installed heatsinks, I find them very appealing. Timber uses them in some products, I think.I would sit a fan on top of the pin heatsink and have it blowing air down through the fins.
On my QB 96 Elite V2's I have a 120mm fan on top of each heatsink positioned in this way.
Why?Never pull air through fins, but push it down Into them.
Seems like bad info to me.....Why?
In what way do you mean? You sent for an RMA form from allied and they responded but you're waiting on where to send it?5 weeks and still no RMA on the Meanwell driver through Allied Electronics.
If anyone needs one in a bit I'm thinking about just ordering a replacement and will sell the new one from the RMA when it arrives. It's a HLG-480h-C2100B
Because that's the best way to get the heat off of the heatsink most efficiently. Using a 140mm PC Axial Case Fan, if you pull air upwards if it were sat on top of a 144mm round Pin Fin, it's able to pull surrounding ambient air from the sides as well.Why?
Lol why? What do you think is the best way to use a PC fan on a round pin sink for active cooling? I suggest you take a look at pre-made heatsinks made for PC processors and see how they're built and which way the air is moving. I think you will be surprised.Seems like bad info to me.....
Fair enough man, just seemed its going against the natural convection of the heatsink but if rahz said it then im happy to take that as gospel.Because that's the best way to get the heat off of the heatsink most efficiently. Using a 140mm PC Axial Case Fan, if you pull air upwards if it were sat on top of a 144mm round Pin Fin, it's able to pull surrounding ambient air from the sides as well.
When its facing downwards, the full output of the fan is forced down through the fins and pushes the air out and off the heatsink. I learned this YEARS ago from @Rahz & robinncn who doesn't seem to be on here anymore?
When I said not on here anymore, I mean NOT on here anymore. As in I either don't remember how the username was spelled, or if it was spelled some weird way I don't remember, but when I @ his name, it's just not there anymore. Which is weird..Fair enough man, just seemed its going against the natural convection of the heatsink but if rahz said it then im happy to take that as gospel.
Yeah haven't seen Robin for a long time on here. Guess he's a busy beaver.
Just seems like in a lighting application, the heatsink is mounted horizontally vs vertically. Heat likes to travel up, so why would you try to force it down. Just seems natural to cowl the fan abd have it suck upward.... pcs are also in an enclose case that has the air routed to an exhaust vent/portLol why? What do you think is the best way to use a PC fan on a round pin sink for active cooling? I suggest you take a look at pre-made heatsinks made for PC processors and see how they're built and which way the air is moving. I think you will be surprised.
Sure heat rises, but when your push the heat off the fins, to the edge of the heatsink, it's still going to rise once it gets there.Just seems like in a lighting application, the heatsink is mounted horizontally vs vertically. Heat likes to travel up, so why would you try to force it down. Just seems natural to cowl the fan abd have it suck upward.... pcs are also in an enclose case that has the air routed to an exhaust vent/port
His profile is still there but yeah cant seem to @ him. Its done this with other people too. Weird.When I said not on here anymore, I mean NOT on here anymore. As in I either don't remember how the username was spelled, or if it was spelled some weird way I don't remember, but when I @ his name, it's just not there anymore. Which is weird..
And Rahz is an actual legend. I can't tell you how much he put up with my questions and was always so cordial, respectful, and most of all, WILLING to answer them and help me understand any and all aspects of DIY.
I've thanked him a hundred times but it's still not enough in my mind.
Because of his kindness and openness to mentor me, I promised him I would carry the torch and do the same for others here. He never did ask me to or specifically encourage me to treat others well, but because of him, I will never forget how grateful I was for the lifeline of important knowledge he extended to me. I strive to model myself and my attitude for other members to replicate how he treated me all those years ago.
Now I'm happy to say, I have helped hundreds of folks with their questions on here and try as much as possible to not be a troll and to treat others exactly the way he treated me.
I could never say enough good things about @Rahz and his amazing contributions to this forum.
What’s the best way to cool a porcupine style “ pin “ heatsink with a small fan blowing air across it from the side or laying the fan on top and having it blow straight up drawing air through it ?
Never pull air through fins, but push it down Into them.
Could a guy find a 4ft heat sink pre drilled for 4 diablo boards and run them at around 80w each for a total of 320w to get a good spread to cover a 2ft x 4.5 ft area. Would this be a good idea or is there a better way to cover this with wall to wall light, I actually need to cover 4.5 ft L x 6ft w . I was just going to make 3 of these if possible.
Why?