My CPU makes this loud buzzing noise when it's idle. I know its not the fan; what might it be? The hard drive?
823351
The second answer is pretty much correct, but I can assure you it's a fan probably the processor fan if not the power supply fan.  \n\nMake sure the fan for your processor is securely seated on the processor.  If that's not the fan check your other internal fan to make sure the are secure.
295969
I just had a similar problem, I took the cpu cooler out and washed it under running water, to clean off all the dirt that builds up. Now it's running at about 90 degrees at idle.
554545
As noted before, it appears that you may have an overheating issue.  This is especially likely if your system has been overclocked.  The first thing to check is that there is no dust on the CPU heatsink fins or the chipset heatsink fins.  If there is no dust, then you night consider upgrading the CPU heatsink/fan.  \n\nPrices for these vary, as does performance.  For the highest performance, look for an all-copper cooling system (eitther heatsink/fan or water cooling system).  Heatsink/fan air cooling systems cost as little as $10 for probably about what you have, or as much as $500 for a high-end water cooled case.  Air cooled systems are traditional, and will work for most people most of the time, but water cooling systems will keep the processor (and chipset, if that is part of the system) cooler, which is better for the computer.\n\nYou might also check into RAM coolers, which do the same thing for your memory.\n\nMicroCenter (listed in the sources) has options for all the suggestions I listed above.  NewEgg is also a highly reliable retailer for computer equipment.\n\nUnfortunatetly, if this has happened several times, there may be irreparable damage to the chipset/CPU, and improving the cooling will only delay the failure of the system.
1156021
I thought the same thing until I contacted my hard drive manufacturerer. They asked if it could be my power supply, which was brand new and hardly used, and sure enough it was. All was fine after that. It was making a ticking noise. Also, if you do get another hard drive, I recommend Seagate. I've had mine for years of hard core file usage and no problems. They also come with a 5 year warranty.\n\nNevermind, after rereading, you are using Seagate. Call Seagate up and if your warranty's still valid, send it back and you'll get a replacement.
301051
ok first it isnt anything to fo with the tower, its to do with the berring in your fan , replace your fans with ultra quiet ones it will change the noize level
1046358
It sounds like there is a lose connection between the hard drive and the motherboard.  Check your ribbon cable.  If that is not it maybe do a chkdsk/f to check for any errors the drive may have.
874015
if its making a loud whurrrrring sound, like a hum in way that means your air input fans and/or power unit fan are clogged with dirt and the fan is straining, causing the noise.\n\nif you have a fan on your processor as well, check it.
1045867
processors dont make noise\n1 fan \n2 hard drive\nmostlikely a fan is burning out they make a loud humming noise but still function when the bearing or bushing goes bad\nunplg puter open case and clean all dust out a bood hose type vac works good also get electrosafe spay and spray to remove remaining dust follow directions on can then replace cover and turn back on if prob still exists open back up and while running listen to the fan up close and c if that is it \ni really think it is a fan possibly clogged by dust or just wearing out
764483
is the fan on the power supply working? The ticking noise could be the hard drive...it may be failing.
1003336
Well, no beeps means that something is wrong all right. It may not be the hard drive. You should hear one beep att least - that means "I'm fine" - but no beeps means that the CPU (note that CPU means  central processing unit and NOT the whole computer as some ppl use it now) is not responding. So, how much do you know about hardware? If you don't know a lot, just bring it to a good repair shop. If you do, tear it down to nothing but the CPU and heatsink. I'll post more if you add a detail to your question "Yes I know how to tear it apart and put it back together" - otherwise, repair shop time.
1148876
It is possibly overheating. Check the fan. Check power supply, it could be going out. If not:\nYou probably need to reorder your BIOS by hitting del on startup. If you dont know how to do this please dont try, get help first.\nHere is a search of this problem, choose one of these forums that seems most similar to your system and ask them. They should be able to help. Its hard to troubleshoot a problem on Yahoo Answers as we cannot easily have continuous dialogue.\n\nGood Luck!\nhttp://www.google.com/search?hl=en&q=computer+restarting+over+and+over
662349
Your computer may be getting too hot.  Perhaps you could try adding another fan and see if it cools things enough so that the noise goes away.  Also, it is important to find a quiet fan!  You can get assistance with all of that at a computer specialty store....
720509
Your hard drive has nothing to do with the internet since it's always spining even if you're not on line,the noise you hear is probably the hard drive is wearing out,eventually the noise will get worse and more constant,maybe it's time for a new hard drive
387229
it is overheating. chack the fan on the motherboard. Best test is to switch it off for an hour and then start it if it runs fine aofr  awhile then it is a fan problem. Even if the fans are working they may not be running fast enough\n\nterry\nhttp://www.beanwebs.co.uk
930530
If your processor is making loud noises, you would need to open the case and air blow the dust that's cluttered in your processor.  Dust gets collected in there, and it's good to dust it out often.
1106447
It would make noise when the processor gets hot and the fan kicks in. Sounds like a cooling issue. Have it checked and it probably needs the vents cleared or it is being blocked. Since it's new it should still be under warranty. So don't wait before it expires before you bring it in for service.
784084
Most laptops have a low hum to them, which is caused by the high speed fans running in them to cool them off.  As long as the computer is running normally, it probably isn't a big deal.  Just as a side note though, sometimes hard drives begin to hum as they go bad.