Noises from RAM

[Roy]

Aaaand... You would be wrong. See what I mean about assumptions?

And I have no assumptions about my cricket. If I turn my speakers off he is no longer to be heard. The only problem is I can't figure out what causes the speakers to make the cricket sound. I can be on my computer for hours and then the cricket just starts up. And he can be around, off and on, for several days, then he can go away for weeks before he returns. I've gotten used to him now, so he doesn't bother me as much.

 

[Tesselator]

Ah, good. That makes all this moot anyway then.

I dunno what it is either tho. Maybe a ground loop or improper grounding? Could be lots of stuff.

 

[Blue Fox]

I get a "chirping" like inferferance noise through my speakers and headphones when listening to music through my iMac sometimes. Only when the song first loads up. I get a very similar noise through my car speakers with my iPod Classic when a song starts up as well.

Not sure if it's the same type of noise you are getting, but it sounds similar. Could a capacitor or something on the logic board be making noises like this?

 

[cmaier]

Aaaand... You would be wrong. See what I mean about assumptions?

No, I'm not wrong. You don't have a Ph.D. in electrical engineering.

And the discussion is not "moot" just because you were wrong, and it is the speaker, not the RAM, making the noise.

 

[Tesselator]

I get a "chirping" like inferferance noise through my speakers and headphones when listening to music through my iMac sometimes. Only when the song first loads up. I get a very similar noise through my car speakers with my iPod Classic when a song starts up as well.

Not sure if it's the same type of noise you are getting, but it sounds similar. Could a capacitor or something on the logic board be making noises like this?

Yeah, it could be something like that. - probably not though. There was an issue with Mac Pro's sound clicking at like 3 or 5 minute intervals in the past too. I haven't heard this happen in over a year now with mine so I guess OS revisions and patches too care of that.

 

[nanofrog]

Not sure if it's the same type of noise you are getting, but it sounds similar. Could a capacitor or something on the logic board be making noises like this?

It very well could be a bad filter cap. Not every part is tested before use in manufacturing the board. Perhaps a small random sample of about 5 pcs / lot, if at all.

 

[JasO]

No, I'm not wrong. You don't have a Ph.D. in electrical engineering.

And the discussion is not "moot" just because you were wrong, and it is the speaker, not the RAM, making the noise.

I don't think it has anything to do with the speakers. I have muted the on board speaker, had it on, full volume, low volume etc none of them made a difference.

I wouldn't/don't know how to disconnect the speaker, however I'm under the assumption that the speaker is in the front of the MacPro (could be wrong)? The noises are coming from the very back, and three people I have asked to tell me where the noise is coming from all say the ram modules area.

I can take the modules out and the noise disappears. So that has to mean something doesn't it?

I've never heard this noise before I installed the RAM, three others and I also agree the sound is coming from that specific area.

I'll make a video asap so you guys can hear what I'm hearing.

 

[cmaier]

I don't think it has anything to do with the speakers. I have muted the on board speaker, had it on, full volume, low volume etc none of them made a difference.

I wouldn't/don't know how to disconnect the speaker, however I'm under the assumption that the speaker is in the front of the MacPro (could be wrong)? The noises are coming from the very back, and three people I have asked to tell me where the noise is coming from all say the ram modules area.

I can take the modules out and the noise disappears. So that has to mean something doesn't it?

I've never heard this noise before I installed the RAM, three others and I also agree the sound is coming from that specific area.

I'll make a video asap so you guys can hear what I'm hearing.

1 of 2 things is happening. Emissions from the RAM are causing something else to make the noise OR bypass caps on or near the modules are making the noise. The RAM, itself, is not making the noise, is my point.

 

[Tesselator]

Well he's mostly right. RAM doesn't make noise loud enough to be audible to humans usually - tho CPUs do and so do the mosfets that regulate CPU power as well as some other "non-moving parts". But if it's coming through your speakers it's something else. It could be grounding, it could be a shot somewhere, it could be a cap like a lot Fox and Frog are saying, it could be a lot of things. Most of the things that it could be are probably out of your control - except for the grounding. So try grounding it better and it that doesn't work you probably have to get an RMA and send it in.

 

[epritzl79]

Weather Bug

I had this seeming random chirping noise coming out of my speakers as well. It was a severe weather alert from wearther bug. I just changed the settings so that it doesn't make noise. Hope this helps!

P.S. I don't remember installing weather bug so it may have been part of one of the updates.