updated april 09
PC cooling can be a noisy affair; a *performance* PC needs cooling for the following parts, and that can mean a lot of blowers:
- Power supply
- north/south bridge
- graphics card
- evt. RAM
Here below some good practical ways to increase cooling and reduce the noise.
If you are looking for a circuit that automatically makes your cabinet fans running at the lowest speed, while keeping the temperature down, pls check this.
You can easily build it yourself. see here
Power Supply cooling.
Here you need a Power supply with a big but slow blower.
I often use a NorthQ 4001 400W PSU with 120mm fan; this is both good, quiet and cheap. see here
Graphics card cooling.
#1 The best you can buy is a graphics card with "passive cooling".
That means that it doesnt have its own blower, but is cooled with a large heatsink and airflow from other blowers in the PC cabinet.
Those blowers are normally big and with low speed, so they dont make so much noise but still move a lot of air.
But you need to have a good airflow through the passive heatsink!
Here below you can see how it can go wrong, and 2 ways to fix it. Click on the pictures to see the descriptions.
|how to improve passive cooler airflow||changing to newer generation GPU|
#2 The second best is a graphics card with a big heatsink and slow blower mounted in it.
|very quiet 2-slot ATI R9800|
|mount a bigger and quieter blower||mount a passive heatsink cooler instead|