Seeking Advice on Enhancing Heatsink for Main Processor on SAMSUNG TV Motherboard

[Ven]

Hello everyone,

I'm looking to upgrade the heatsink on the main processor of my TV's motherboard for better cooling performance.

The current heatsink is a square-shaped one (2.8cm x 2.8cn) with a basic design, and I believe a more efficient heatsink could help with thermal management and potentially extend the life of the TV.

I'd appreciate any advice on the best type of heatsink to use, specific product recommendations, and tips for installation.

If you've done a similar upgrade, I'd love to hear about your experience and any challenges you faced.

Thanks in advance for your help!

[harp]

I have a small second hand TV, that I rarely used as a filming monitor. When I open it for initial cleaning and inspection, I noticed that for main IC is used very small heatsink which was directly glued on IC (just like on yours), not side suport on pcb whatsoever... On other side of pcb, the board was starting browning from heat, so, any mess around with glued heatsink or IC is not anymore option due to pobably ripped pad under bga... I use a small thin turbine (side type, with partialy housing) fan from old graphics card like attachment and connect it to usb power, so it is on while is TV on, and stay on a couple minutes after shuts down. It is not too loud, because work on half of power. I fixing it very closely and hope it lower some degree more. All other options is too risky to me, because TV is still in working condition, and if I screw it up, there is nothing good... better to do nothing.

[Ven]

I have a small second hand TV, that I rarely used as a filming monitor. When I open it for initial cleaning and inspection, I noticed that for main IC is used very small heatsink which was directly glued on IC (just like on yours), not side suport on pcb whatsoever... On other side of pcb, the board was starting browning from heat, so, any mess around with glued heatsink or IC is not anymore option due to pobably ripped pad under bga... I use a small thin turbine (side type, with partialy housing) fan from old graphics card like attachment and connect it to usb power, so it is on while is TV on, and stay on a couple minutes after shuts down. It is not too loud, because work on half of power. I fixing it very closely and hope it lower some degree more. All other options is too risky to me, because TV is still in working condition, and if I screw it up, there is nothing good... better to do nothing.

Thank you for your reply, I will take your comment into consideration.

[nobbnobb1]

I picked up a top of the line LG plasma for free which was in mint condition, but had a failed chip on the mainboard. All I did was reflow the BGA with a heat gun, and added a fan to the chip which I found a 12V take off point somewhere off the power supply. The BGA problem is well known on this TV, but after the heatgun trick it's been holding just fine for the last 4+ years. So well worth it to add the extra cooling IMO as it minimizes the thermal stresses on the chip on each on/off cycle.