I recently installed a second graphics card (ATI 5770 in crossfire), and cleaned out a lot of dust from the PC. For some reason however the 'fan noise' is much louder, and I can only think of a few reasons:
- The two graphics cards have paired up to be noisy.
- The powersuply is working overtime to feed my power hungry cards.
- The whole box is hotter, making the CPU work harder to stay cool.
Which of these is most likely, and how can I make it quiter? FWIW my powersupply is a corsair 650W (maybe 750W, but I don't think so) and my CPU is a Phenom II X4 955.
I've just installed SpeedFan on my windows boot for t his machine, and the temps are up around 60-80c That 80c is on my second GPU. I'm guessing that's not good What can I do in light of this?