Sounds like a washing machine in next room

Compaq Presario CQ5700F Desktop
Processor - 2000 MHz (gh2 gb usable??)
Memory - 8.00 GB (-> 7.75 GB)

Memory
2 GB
Amount: 2 GB (basic)
Speed: PC3-10600 MB/sec (message as PC3-8500)
Memory upgrade information
Dual channel memory architecture
Two DDR3 DIMMs (240-pin) sockets
PC3-8500 (DDR3-1066)
PC3-10600 (DDR3-1333)
Non-ECC memory only, unbuffered
Supports 1GB, 2GB, and 4GB DDR3 DIMMs
Supports up to 8 GB on 64-bit systems (DIMMs run at DDR3-1066)
Supports up to 4 GB on 32-bit PCs
*32-bit PCs cannot address a full 4.0 GB of memory.

< Moderator edit to remove broken links >

Thank you snuffleufflegus. You and 123Zbyniek`s advise is what keeps me coming back here for help. I will surely give this info to my son when he stops by my house. He is pretty good at tinkering with this stuff. Me not so much. I can now clearly understand that indeed something is not right inside the machine and it may in fact be dust, or loose ends that is causing the noise. I noticed that it started not to long after my son added the new memory card to increase (whatever), as I note barely any difference from before. Although my computer no longer freezes, or is very slow, the noise is really what is hard no to notice. Because my son does not live here with me, I have to wait until he calls or stops by to ask him to open the computer and do his thing....Thanks again and I will let you guys know whenever my son and I go into this thing....

123Zbyniek said:

O.K.

Click to expand...

123Zbyniek I am sorry that my comment about the "link" brought you Cookiegal to your post. I have to agree with her though. We must always be sure about what we post. However, I am positive that you intended no harm. So no harm, no foul here.

And while I`m here today, let me again say what I did at the beginning of my post (sounds like a washing machine).

I said in the first paragraph of my thread that the humming stopped whenever I turned-off my computer and then things went on normally, as if nothing was wrong. Now I have discovered that when I start my computer the humming comes on, but not as loud as before when I first posted. The humming now fades away as I keep working on whatever I am doing. Today for example, the slow humming came on just when I first started my machine in the morning. In about 5 minutes the humming was gone. I has been quiet all day today.

I will however, ask my son to open the machine to check the connections and slots to make sure nothing is causing this and make it worse. I needed to let you guys know how things are going with my situation. I owe you guys this much.....thanks a lot.

I am not ready to call this "solved" however.

There are very few things in a desktop that make any noise.Basically anything with moving parts.It can be easy to track down the culprit.That being said,about the only things that will make that noise are the cpu fan,the out-take fan,the hard drive,cd-rom/dvd-rom drive.I think that's about it if i remember right.Has been a long time since i owned a desktop.However,for good practice it's always a good idea to clean both cpu fan and out-take fan and blow the dust from inside the case out.When fans have dust build-up,they tend to make noise because they are working so hard.The hdd can make noise if it is on its last leg.Sometimes it might be a loud whining noise or a clicking noise.Your cd-rom/dvd-rom can also make clicking noises when you turn your computer on.My son has a gaming desktop and when he powers it on, the fan is loud at first then quiets down.I can only assume it just needs to warm up.He just bought it a month ago so i know the fans are not dirty.It's just the way it is.Still,it's safe to say it's always a good idea to do some cleaning every few months as they can collect alot of dust.Your computer will last longer if you take good care of it.

snuffleuffeus, reading your tips on what might be the reason my computer is ailing with humming sounds, I convinced my self to play a computer technician and just opened the computer compartment and found the culprit. As I have stressed, that my son is the one who always does this type of stuff for me because even opening the thing gave me the creeps. I imagined myself damaging the machine and then having to tell my son....However, once I opted to jump into the machine, at first I was totally confused on how to begin cleaning the fan blades because I found them to be full of dust and lint. Someone told me and I don`t recall if it was you..."to take the screws off the gizmo that holds the fan in place" and clean the fan blades as it might he one reason for the noise. It was easy removing the fan after taking off the screws. Indeed it was full of dust and I cleaned it pretty good. However, once I thought I had done a good job I put the screws back on and wrestled with trying to connect all the wires to turn on the computer. When I turned the machine upright to place into the compartment of my work table, the fan fell off with a thud!...I did not realize that a bracket holds the fan in place and holds it so that it can be screwed in place. I went back and manage to adjust the bracket - which is made, I think of hard plastic into place and now I knew it would hold. So to make this post as short as possible. I want to thank you guys, like I always said...(again) you have come through for me....The noise is gone. The fan is pretty clean and it took my computer several minutes to start working because it needed some readjustment of files and, well I guess you know the drill when tinkering inside the machine. Please pass this along and enter my request to have this post and my problem situation....SOLVED!

lunarlander said:

There is also the fan in the power supply.

Click to expand...

I did open up the computer by unscrewing the back panel and going in. The fan I talk about is the one that is inside that has four screws. One on each corner of the bracket that holds the fan in place. Once I convinced my self that I had cleaned it pretty good I placed each screw back and tightened them. However, I did not realize that the fan is supported in place by the bracket that embraces the fan and can be locked so that it stay in place. The fan fell off when I put the computer upright to insert it inside the cubicle of my work desk, which is right by my left leg calf as I sit on my chair. I went inside again when I realized what had happened and placed the fan-holding bracket in place and screwed it together one more time. It worked. The other fan mentioned can be seen from the back of the computer case without having to open it up. I have to admit that once I had the noise go away, I lost interest in that particular fan, even though I did blow some of the dust off. This morning as I type this, is the first time I start up my machine after the clean up. Purrrs like a kitten. Admittedly, I will have to do this more often because it feels good to work without the pestering humming sound.....You guys are great! Whenever something ails in my computer I always come here. (lunarlander, I cannot close without saying thanks to you also), greetings.