I don't understand the purpose of the VRM heatsinks.

LGA1150 processors have on-die voltage regulation for the CPU. That's why LGA1150 boards look so barren around the CPU socket. What is the purpose of the heatsinks? Is there anything even under them?

SPCR reviewed the newer variants here and found them lacking:
http://www.silentpcreview.com/Scythe_Fans_2013

I've made extensive use of the Scythe Slipstream 120mm PWM fans, as they're absolutely excellent, cheap, and used to be readily available from NCIX. NCIX no longer stocks them, but instead stock a "Glidestream" PWM fan, found here: http://www.ncix.com/detail/scythe-glidestream-120-pwm-fan-5d-92607-1...

I'm building myself a new computer system, and I'm trying to engineer it from the ground up to be really damn quiet. Motherboard will be an ASUS K8N-32SLI Deluxe, powersupply a SeaSonic SS430, and graphics will be provided by a pair of Gigabyte passively-cooled GeForce 6600GT cards. All this is goin...