This is the 92mm memory fan.sorry for this bad picture.btw this thing is terribly noisy.also it has a strange cable.look here i posted this in the fan forum viewtopic.php?t=40184 on the Foxconn motherboard "FAN MEM".there is a memory fan!! Here you can see the cpu cooler, the memory, and the 92mm memory fan that when everything is closed is above of the memory. ok here are some pictures.(sorry i only have a webcam): You get the heat and buzzing of the fan motors, but zero cooling for your components. Stromgald wrote:Like grekawaski said, cutting off the fan blades doesn't help since the fans will still spin. But I'm not sure if Speedfan is compatible with your motherboard. That would help alot to diagnose your noise problem.Īnd by the way, I think speedfan can override the pre-programmed BIOS fan control. Perhaps you can take some pictures of the location of each fan/heatsink and post them. Here's the best picture I can find on the system (Looks like an inverted motherboard system with two 92mm exhausts in the back).
All except the highest end, bleeding-edge systems have dedicated memory cooling. That makes a big difference because it's main purpose isn't to cool the memory, but something else. It might be a CPU fan, intake fan, or chipset cooler than just happens to be near the memory. I highly doubt that they have a specific memory fan that's any bigger than 80mm. You get the heat and buzzing of the fan motors, but zero cooling for your components.Ī fan over the memory is not very descriptive. Like grekawaski said, cutting off the fan blades doesn't help since the fans will still spin. My smart (and desperate!) solution to this was to just cut off the fan blades!! So now the memory “fan†Tried to unplug it, but the system understands that it have lost one fan it so it then just speed up all the other fans and make the computer sound like a vacuum cleaner. I did find out that it is the fan over the memory chips that makes most noise. I personal found it so annoying so I opened my 490 and started to look for solutions. They are the noisiest Dell computers we have, much more than the Precision 380 and 530 models. I ordered four Precision 490 with single Xenon 3,73GHz processors to use at my work. yes i'm shure.look what wrote a member from dell's forum: The Dell Precision 490 has a 92 mm 4 pin (PWM) fan for the memoryĪre you sure it's for the memory and not the CPU?įrom what I hear the JMC PWM fans are pretty quiet, but never tried one:Īlso you should try speedfan, so if you can reduce fan speeds (and therefore noise):
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