Diamond GSV500 power supply high temperature

[yahya]

I have this power supply. It's neat for the less power-hungry equipment, but its main disadvantage is the high temperature of the heatsink, which is confirmed even in the manual. It can literally burn your hands at contact. Perhaps that was the reason this power supply was eventually withdrawn from the market.

That being said, I have a simple question. Is there any way to reduce the temperature of the Diamond GSV500 heatsink without any moving parts like a fan? I considered replacing the heatsink with a larger one but now I doubt that would be a remedy. Has anyone experimented with that power supply's internals?

 

[N4KVE]

It’s not worth the effort. Just get a $5 fan that blows on the heat sink. Problem gone.

 

[devicelab]

That being said, I have a simple question. Is there any way to reduce the temperature of the Diamond GSV500 heatsink without any moving parts like a fan? I considered replacing the heatsink with a larger one but now I doubt that would be a remedy. Has anyone experimented with that power supply's internals?

In looking at photos of the 500, its heatsink does look weak. Specifically the base looks too thin. They probably didn't 'expect' the PS to be drawing 5-6A of continuous draw.

A much larger heatsink (especially thicker in the base) should work well. You might be able to find a heatsink with integrated fan. Buy some thermal compound too and make sure there's a wide area of contact between the mount-points and heatsink.

 

[AK9R]

According to the specs, the GSV500 is rated for 5 amps continuous and 6 amps intermittent.
@yahya How much current are you pulling from your GSV500?