Help!! my dell system is making loud noise and doesn't boot up Tags: Prebuilt Light Dell Systems Last response: March 30, 2011 2:12 AM in Systems Share smokarz March 30, 2011 1:18:11 AM need help guys, today, my dell dimension 4550 is making loud noise when i turn it on. i see the power light lits up, but i have no signal on the monitor. also, my keyboard and optical mouse does not light up. normally, the optical mouse has red light underneath and the keyboard has those green lights on the num lock, scroll lock, etc. but today, nothing. no light, no signal and system is making a very loud sound (like really loud fan noise). is my pc dead? power supply dead? hard drive? how do i diagnose this issue? thanks More about : dell system making loud noise boot Ubrales March 30, 2011 1:29:52 AM Turn it OFF and re-boot. Observe carefully for what type of noises you are hearing. It is quite possible that the CPU heatsink fan is bad. This will prevent the computer from booting. Let us know what happens when you re-boot. smokarz March 30, 2011 2:09:24 AM well, i opened up the computer, used a whole can of air compressor and removed a tons of dirt from inside. powered on, and the pc is running as it should now. and really quiet too. my kids probably abused this thing pretty good. thanks for the response ubrales, issue resolved. Can't find your answer ? Ask ! Get the answer Ubrales March 30, 2011 2:12:21 AM Great! It helps to place the computer off the floor. Usually, floor located computers tend to collect a lot more dust than table located computers. Can't find your answer ? Ask ! Publish Related resources HELP ! Loud continuous beeping noise Forum Help with previous build. Won't boot , Loud High Pitched noise at start Forum Just installed H50, but loud p/p fans noise & maybe high temps? Forum Fan makes a loud noise when starting sometimes Forum HDs with Loud gring noise when pc starts up cold Forum PC doesn't boot up - faint high pitched noise from the PSU Forum Dell Dimension 8400 wont boot up Forum LOUD GPU NOISE !!! PLEASE HELP :( Forum Speakers making a loud pops when I start my computer? Forum New sata harddrive making creeking noise Forum Seagate Barracuda LP ST31500541AS 1.5TB and loud random clicking noise Forum HTPC Mobo+CPU ~$150 Forum [Solved] Hi guys can you help me with my build Forum Gaming system under $1000 including monitor Forum My first Build =) =) and need help Forum Last part (1100) max budget (MOBO Help) Forum New build help needed- Low-end HTPC Forum [Solved] $800 budget gaming build need help & suggestions. Forum Trying to buy a gaming system around 1200$ Forum [Solved] Need help with first build for music lover Forum More resources Read discussions in other Systems categories Homebuilt New Build Prebuilt Cases Power Supplies RAM CyberPower !