What is Reddit's opinion of Awxlumv Aluminum Large Heatsink 5.9 x 3.6 x 0.59 Inch /150 x 93x 15 mm Black Heat Sinks Fins for Cooler RTX 3090 3080 ti Backplate PCB LED Motherboard (2 Pcs)?

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https://www.amazon.com/gp/product/B089QHQFBS/

I stuck 2 of theseto the back of my 3090 with 1mm thermal pads and put a box fan on the rig and now my mem temps stay around 70-80° C

Awxlumv Aluminum Large Heatsink... https://www.amazon.com/dp/B089QHQFBS?ref=ppx_pop_mob_ap_share

I purchased one of these, and married it to an Antec SP case fan running on its own fan curve.

https://www.amazon.com/gp/product/B089QHQFBS?th=1

I used https://www.amazon.ca/gp/product/B089QHQFBS/ref=ppx_yo_dt_b_asin_title_o07_s00?ie=UTF8&th=1

Keep in mind they are not really necessary. In fact, the problem with thermal pads is that they are really hard to be of the right size. If they are too small, there will not be enough pressure. If they are too big, you may be able to compress them, but maybe not enough. If they are the right size, but you press a little bit on the backplate, they will lose their original form and be too small...

That's the problem I had at first when I was still on the air cooler, at first I had max 85-90C on the mem, but after putting too much pressure on the backplate, it was going to 105-110C...

What I liked with the thermal putty was the malleability. You can put too much, you do not have to care, because it will spread out :).

However, the shelf life of thermal putty is often less than a year. Right now, i've got it on my gpu for 8 months & no sign of degradation tho.

Awxlumv Aluminum Large Heatsink... https://www.amazon.com/dp/B089QHQFBS?ref=ppx_pop_mob_ap_share

Awxlumv Aluminum Large Heatsink... https://www.amazon.com/dp/B089QHQFBS?ref=ppx_pop_mob_ap_share

I bought a heatsink off of Amazon, mounted it with some thermal tape and then set some 92 mm fans blowing hot air up towards exhaust fans.