Turn off the power and remove the computer side panel to locate the noisy fan. Pc case fans suddenly loud. About Lenovo + About Lenovo. I am at my wit's end. Posted by 2 years ago. It is extremely loud all the time. Determine the type of noise you are hearing. In case the fan blades are imbalanced or bent, it might call up a humming or rattling noise in the fan. Otherwise the computer has been flawless and fast for several years. For hardware. Fan stops or makes unusual noises. Locating a noisy fan . To open the computer case, loosen or remove the screws at … Do your case and/or PSU fans suddenly become noisy when you turn on your PC, then eventually quiet down, in most cases, the fan is not going bad, just a little TLC is needed. O/S power settings do not affect the speed. It’s the same process for what we do in case of larger fans. Good thing is to clean the inside of the server for any dust that has accumulated. I opened the case and when my monitor lost signal I saw 2 GPU fans spinning faster than normal, others were spinning the same. It is important to keep dust from accumulating in your PC and ensure adequate ventilation to help reduce heat. Remove any objects near the computer. My HP Pavilion desktop (Windows XP SP3 Media Visually inspect the fan and check that no wires or debris are stuck in or touching the fan blades. Turn off the computer. If you have a tool-free case, unlatch the hinges to open the panel. Build Help. Pc case fans suddenly loud. Gently hold the fins of the fan while using the … In addition, make sure there are no children or pets near the area. There is no variability. From boot up to shut down, my CPU fan runs at full speed. Our Company News 0. A noisy case fan comes from the rear of the computer. Archived. Remove the noisy fan and clean it with some compressed air. As soon as I click the restart button the fans … If you notice the system fan running constantly and making an abnormal or loud noise, this might indicate the PC is not running as efficiently as possible, and/or clogged air vents. I'm going to try and be concise and to the point. Close. Open the case and see if you can find which fan is making the noise. Hello reddit I recently built my pc and it was pretty silent even when having pc fans always running at high but today I woke up and pc fans sound way louder than they ever had. Open the case by removing one or both panels using a screwdriver. Build Help. In case you have found any bent or unbalanced blades, you should step in to fix it up. Once exposed, clean the case fans by blowing compressed air into every nook and cranny. If the issue persists, the case fan … While you’re at it, give the motherboard, graphics cards, hard drive, power supply fan, and other components some attention. 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