My pc was crashing due to meltdown and I was going to buy a big cooler, but I found a better way.
All these super fan cpu coolers really just dump heat in the case, so I tht I would try to get more air thru the case, so i added all the case fans (3) I could. No improvement.
Then I noticed that the round holey bits in front of the fans ruin thier flow. I removed the front case fan and mounted it under the round grill on the side of the case over the cpu fan, bit better.
Then I added a paper tube so the air is sucked in by the case fan directing the air to the cpu fan, better but no fondue set.
Then I got a hammer and a chisel and made the holey grill on the side on big hole so the flow is not restricted.
Now cool air fronm the outside is suck in by the case fan and then it goes thru the tube directly to the cpu fan. Result. Idle now 41 (was 50), full load is 46 (was 58 meltdown sieze up), and no macho pricey cpu fan required.
I think the lesson is clear, get cold air directly to the cpu cooler, dont buy big coolers, they just recirc all that warm air in the case.