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Trying to get rid of hum/buzz from old case
OK first things first I'm not O/C clockingthe machine but wanted to post in
here as i know you folks know your stuff and I'm hoping some of you can help me out. I have an old Antec SX-1030 a simple review can be found here http://tinyurl.com/pttyb9 but i have upgraded power supply to there TruePower II (550w) Now for ages it was way too noisy for my liking so I replaced the stock 80mm fans with x4 XILENCE Red Wing 80mm http://tinyurl.com/pqpf76 as a rule I'm very happy with the fans themselves they make a huge difference in the general noise (or lack of) of the case but I do keep on getting an annoying buzzing /humming sound which is a real pain in the rear end as the case is in my living room and only 2 feet from my ears when I'm at the desk using it, it's not there all the time it comes and goes sometimes for just a few seconds sometimes for hours. So i went ahead and bought some more stuff hoping it would cut the noise down even more and more importantly get rid of this buzzing noise, which is coming from one of the fans in particular so I bought some of these AcoustiFeet http://tinyurl.com/39uao9 as well as four of these AcoustiFan Anti-vibration Fan Gaskets http://tinyurl.com/ojyps7 in 80mm format, but my problem is still there, main reason being i was unable to fit these gaskets to my case, if i show you some images of how and where my fans go you might get more of an idea of what I'm getting at. http://tinyurl.com/qy7hot This image gives you an idea of what my case is like from side view, top part has 4 external drive bay and in my case i have top one free one underneath that has my standard DVD burner below that is free as well and below that in the bottom 5.25" bay i have my main windows hard drive being cooled by the "Antec Hard Drive Cooling System" http://tinyurl.com/p3pg2y Below this we have a cage that has 3x3.5" drive bays (2 external and 1 internal) top bay is for my floppy (yes some of us still have them, they till come in handy) middle bay is free and bottom one (the internal one) has my hard drive in that is just used for items I download and hence no cooling for that drive. The last cage has a further 3 x 3.5" bays and all of these are internal and have the option of fitting a fan, which i have done and I think this is the fan that is causing all the trouble with humming and buzzing. I have tried to find the best pics i can on the net showing how the cage is put together and here are a few pics. The first image shows the cage from the rear, so you would put your drive in here and push it forward towards the fan and the airflow would be coming towards you in this picture, I'm sure you know what I'm talking about but I want to make sure my post gives you all the info you need http://tinyurl.com/pq5wyf This picture is the opposite as you look at this image it would be as if you were looking through the front of the case, airflow would now being sucked into the cage from this angle and hence going over the drives http://tinyurl.com/osd6q7 This image is just the same as the first one but with a hard drive in place, but in my case i have a drive in top and bottom slot of the cage . http://tinyurl.com/r2yrey Just to finish of things I have another fan in the bottom of the case under the final 3.5" cage to improve cooling even more plus 2 fans at the rear extracting the warm air, now given all this it would seem I have done all I can to keep things cool and quiet except going water route and that would be overkill for me given I'm not overclocking anything in this system. I tried to use the 4 AcoustiFan Anti-vibration Fan Gaskets but once they were in place my fans failed to clip into the purple holders that come with the case, so i thought OK no problems just use the screws and screw it into case but it seems I'm unable to do this, here's a couple of pics of the case with front panel removed http://tinyurl.com/q5upzw and http://tinyurl.com/qcm8hj I'm at a real loss what to do next, I was looking at one of the following bits of kit http://tinyurl.com/q9t5el or http://tinyurl.com/obtdxr or lastly http://tinyurl.com/34thww but unsure if they would even work in my case. I have tried to give as much information as possible, but if you need any more info just ask and I'll do my best to supply it, so it's over to you lot know what are your suggestions for trying to eliminated this annoying buzzing/humming sound, if it would help I can even cap the noise and host it somewhere so you get an idea of what I'm having to put up with. Thanks for taking the time to read my post. Sorry it was so long. |
#2
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Trying to get rid of hum/buzz from old case
Jim wrote:
OK first things first I'm not O/C clockingthe machine but wanted to post in here as i know you folks know your stuff and I'm hoping some of you can help me out. I have an old Antec SX-1030 a simple review can be found here http://tinyurl.com/pttyb9 but i have upgraded power supply to there TruePower II (550w) If you must use tinyurl, please also publish the original URL. The tinyURL will not remain accurate forever, the original will last as long as it is maintained. Also use of the accurate URL prevents anyone from supplying evil links. .... -- [mail]: Chuck F (cbfalconer at maineline dot net) [page]: http://cbfalconer.home.att.net Try the download section. |
#3
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Trying to get rid of hum/buzz from old case
"CBFalconer" wrote in message ... If you must use tinyurl, please also publish the original URL. The tinyURL will not remain accurate forever, the original will last as long as it is maintained. Also use of the accurate URL prevents anyone from supplying evil links. ... So no real help then, I post tiny URL's for a reason and that reason being longggg URL's don't always aloow folks to click on them as they get split up and according to TinyURL there links never expire, anyway thanks Chuck. I'll repost later with full URL's just to keep you happy. Jim |
#4
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Trying to get rid of hum/buzz from old case
Jim wrote:
"CBFalconer" wrote in message ... If you must use tinyurl, please also publish the original URL. The tinyURL will not remain accurate forever, the original will last as long as it is maintained. Also use of the accurate URL prevents anyone from supplying evil links. ... So no real help then, I post tiny URL's for a reason and that reason being longggg URL's don't always aloow folks to click on them as they get split up and according to TinyURL there links never expire, anyway thanks Chuck. I'll repost later with full URL's just to keep you happy. Jim Well, I am one of the people who never click on a tinyurl. And always try to judge a long one . If it looks fishy, I dont.(click) |
#5
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Trying to get rid of hum/buzz from old case
Sjouke Burry wrote:
Jim wrote: "CBFalconer" wrote in message ... If you must use tinyurl, please also publish the original URL. The tinyURL will not remain accurate forever, the original will last as long as it is maintained. Also use of the accurate URL prevents anyone from supplying evil links. ... So no real help then, I post tiny URL's for a reason and that reason being longggg URL's don't always aloow folks to click on them as they get split up and according to TinyURL there links never expire, anyway thanks Chuck. I'll repost later with full URL's just to keep you happy. Jim Well, I am one of the people who never click on a tinyurl. And always try to judge a long one . If it looks fishy, I dont.(click) The tinyutl.com site has a "Preview" feature. Go to the site, like this http://www.tinyurl.com and click the Preview feature. Make sure it is enabled. Then go back to the OPs link, and paste that into a browser, as in http://tinyurl.com/pttyb9 and when you do, it won't go to the URL directly. It will display the URL, at the top of the web page. You can examine the link and then use your normal "trust" analysis, to decide whether you actually want to click on the original link or not. As far as I know, the Preview state is cookie based. If you clear your cookie cache a lot (like I do), it means re-enabling Preview before using any tinyurl entries. ******* Removing noise in a computer is difficult, and first requires narrowing it down. For example, I had a buzz in my case, and first thought it was a defective disk drive. It turned out, not to be the case. Some sheet metal near a case fan, is not riveted in place, and that tends to resonate. That is my noise source. Installing sound absorbing material, is a double edged sword. On the one hand, it may attenuate some of the noise. On the other hand, the computer case air temperature rises when large amounts are in place. If you wanted to maintain a constant temperature, the larger fans required might negate the noise improvements. Mass and stiffness help. That is why I don't buy aluminum cases, and buy SECC steel ones. They're heavier, and for certain kinds of noise, damp it out better. But noise is also transmitted through the air, and not so easy to fix. Zalman made two cases which use heatpipes to carry heat to the outer wall of the computer case. The site currently only lists the smaller of the cases. You cannot put high power hardware in a thing like this, so the emphasis would be on lower power selections. And even though every effort has been made to eliminate cooling fans, a fan may still be required if the case is overheating. http://www.zalman.co.kr/ENG/product/...ad.asp?idx=186 Paul |
#6
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Trying to get rid of hum/buzz from old case
On Sat, 23 May 2009 00:22:15 +0100, "Jim"
wrote: OK first things first I'm not O/C clockingthe machine but wanted to post in here as i know you folks know your stuff and I'm hoping some of you can help me out. I have an old Antec SX-1030 a simple review can be found here http://tinyurl.com/pttyb9 but i have upgraded power supply to there TruePower II (550w) I have one, but the aluminum version. The steel is quieter. They are nice cases, lacking some modern features but solidly built for their size and price (though for awhile the Antec name kept prices artificially high). The one thing I dislike most about them is they were designed during an era where 80mm fans were considered acceptible, but then the fans needed higher RPM to move the same amount of air. Now for ages it was way too noisy for my liking so I replaced the stock 80mm fans with x4 XILENCE Red Wing 80mm http://tinyurl.com/pqpf76 as a rule I'm very happy with the fans themselves they make a huge difference in the general noise (or lack of) of the case but I do keep on getting an annoying buzzing /humming sound which is a real pain in the rear end as the case is in my living room and only 2 feet from my ears when I'm at the desk using it, it's not there all the time it comes and goes sometimes for just a few seconds sometimes for hours. Those fans do look like a good low noise option, but not a low lived option. Their use of sleeve bearings (what they call hydro) may be the problem, that the bearings have dried out. Take them out, clean the dust off, peel the sticker off and remove the plug to put a couple drops of oil in the bearing. If the bearing has worn too much this will have limited effectiveness and/or they may need to be relubed more often, if the wear is slight they may run for a few years before needing relubed again. So i went ahead and bought some more stuff hoping it would cut the noise down even more and more importantly get rid of this buzzing noise, which is coming from one of the fans in particular so I bought some of these AcoustiFeet http://tinyurl.com/39uao9 as well as four of these AcoustiFan Anti-vibration Fan Gaskets http://tinyurl.com/ojyps7 in 80mm format, but my problem is still there, main reason being i was unable to fit these gaskets to my case, if i show you some images of how and where my fans go you might get more of an idea of what I'm getting at. http://tinyurl.com/qy7hot When you first installed the quiet fans, did the system buzz then? If not, it is unlikely you will need to add something new to make it quieter, only to restore it to the condition it was in when last quiet. It is possible the fans have worn too much, or some are imbalanced. We can't hear the system either so one man's idea of too much noise may be different than another's. I haven't closely looked at the fan mounts in my version of that case in a long time, but I vaguely recall they used some kind of cage that slides into slots in the case wall. If you put electrical tape around those case wall slots, that should prevent movement if there is any movement present, though if it is not the problem it might make it fit too tight to easily remove or install the fan cages. There is also a lever on the drive racks, it may be subject to rattle a bit due to the hard drives or imbalanced fans. That is another area where a piece of electrical tape, foam tape, or slightly bending it may help. Just to finish of things I have another fan in the bottom of the case under the final 3.5" cage to improve cooling even more plus 2 fans at the rear extracting the warm air, now given all this it would seem I have done all I can to keep things cool and quiet except going water route and that would be overkill for me given I'm not overclocking anything in this system. You didn't enumerate what parts are in the system so it is difficult to be certain whether the level of airflow is enough, but in general that setup will cool a system fine. You might fan a bit higher airflow fans if you have drives in every rack slot, but otherwise it should be enough given moderate ambient temperatures. I tried to use the 4 AcoustiFan Anti-vibration Fan Gaskets but once they were in place my fans failed to clip into the purple holders that come with the case, so i thought OK no problems just use the screws and screw it into case but it seems I'm unable to do this, here's a couple of pics of the case with front panel removed http://tinyurl.com/q5upzw and http://tinyurl.com/qcm8hj That picture does a good job of showing the fan bracket mounting slots I wrote about above. If the fans themselves are excessively vibrating then the clearest solution is to replace them with some that are better balanced, but try relubing them first. Also try putting pieces of electrical tape on the case cutouts where the brackets slide on. However, if you were dead set on screwing the fans to the case, you could mark holes where you need them to be, drill them out. If the existing cutouts make this a problem, put large washers on the screws before inserting them through the holes. A typical washer good for this would be a fender washer at a hardware store, since it has a smaller than average ratio of center hole to outer diameter. However, I don't think you'll need to go to the trouble of drilling holes and if the fans are wearing out then they will get worse at an accelerated rate due to the play in the bearing, and potentially fail. I would lube them now just to rule that out. I'm at a real loss what to do next, I was looking at one of the following bits of kit http://tinyurl.com/q9t5el or http://tinyurl.com/obtdxr or lastly http://tinyurl.com/34thww but unsure if they would even work in my case. Take your hand and grasp each of the various parts when you hear the vibration, so you can hope to locate which parts are doing it. You won't need fancy case quieting supplies, just some electrical tape, foam tape, bending a part of the metal a tiny bit, or replacing a fan(s) if they are too far worn or imbalanced. I have tried to give as much information as possible, but if you need any more info just ask and I'll do my best to supply it, so it's over to you lot know what are your suggestions for trying to eliminated this annoying buzzing/humming sound, if it would help I can even cap the noise and host it somewhere so you get an idea of what I'm having to put up with. Thanks for taking the time to read my post. Sorry it was so long. If all else fails, start unplugging things. Leave a fan unplugged, next a hard drive, next two hard drives, etc. That may or may not indicate the part itself is going bad, it could instead indicate which case part that it's sitting in is vibrating against the adjacent case part. |
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