RX 580 VRAM Cooling

[Kraken66]

I've had my MSI RX580 for a good while now, but it runs a bit too loud and hot for my liking. I was looking into a 3rd-party cooling solution and found that my CPU AIO fits the holes on the GPU PCB. While the VRM's on the card have their own heatsink, the VRAM chips do not. I don't expect my case to provide large amounts of airflow down there, and I would like to experiment with overclocking so I can get the most out of this card before I upgrade, however little that may be. Should I also get some small heatsinks or a fan for the VRAM chips, or will they be fine due to the lower end nature of the card?

[Firewrath9]

you shouldn't really need any, a g12 kraken comes with a 92mm fan for VRM and VRAM cooling. My RX 570 is able to OC the ram chips at 2050 mhz (+300mhz over stock) without a heatsink.

[Kraken66]

I was planning on using my CPU AIO, the ML240L, since I already own it, which doesn't have any sort of extra cooling for the VRM's or VRAM. Would having some cooling for those be necessary for the operation and lifespan of the card?