Weird Noises

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calloftheblade · #1 Post by **calloftheblade** » Sun Oct 10, 2004 7:38 pm

Does anyone experience grinding/whining noises when they scroll, or minimize/maximize windows...? thanks

wanna_IBM · #2 Post by **wanna_IBM** » Sun Oct 10, 2004 8:19 pm

not really.

AtmosMan · #3 Post by **AtmosMan** » Sun Oct 10, 2004 8:44 pm

I have had it happen two or three times in 15 months. I don't know what causes it though.

dimme · #4 Post by **dimme** » Mon Oct 11, 2004 6:28 am

Calloftheblade

I have a T41 and I experience the same grinding noises when scrolling. I was told by IBM and the university helpdesk that it is caused by some capacitors inside and nothing to worry about.

calloftheblade · #5 Post by **calloftheblade** » Mon Oct 11, 2004 4:01 pm

Thanks dimme.

calloftheblade · #6 Post by **calloftheblade** » Tue Oct 12, 2004 3:22 pm

anyone else?

1llogic · #7 Post by **1llogic** » Tue Oct 12, 2004 6:47 pm

i do, and its friggin annoying. it sounds like its coming out from the USB ports. some ppl said the sound goes away by disabling the USB controller but thats annoying too, cuz i use my USB ports a lot.

sharpc8690 · #8 Post by **sharpc8690** » Tue Oct 12, 2004 9:44 pm

It often appeared on my old thinkpad, 535x when I opearated on the windows.

atlacatl · #9 Post by **atlacatl** » Wed Oct 13, 2004 9:13 am

I hear them - No solution so far - It has been discussed, also.

RCube · #10 Post by **RCube** » Wed Oct 13, 2004 9:32 am

me too. Oh well can't have everything.

calloftheblade · #11 Post by **calloftheblade** » Wed Oct 13, 2004 10:06 pm

hrm this is interesting that many ppl have the same problems.... I heard that it might have something to do with interference of some sort?

JASE · #12 Post by **JASE** » Thu Oct 14, 2004 2:21 am

My T41p makes funny noises while it is supplied from the outlet. The noices seems to originate from the lower lefthand side of the palmrest. The noise goes away when I remove the power (and run on batteries).

Could it have someting to do with the clock speed of the processor?

Anyway, I have experienced this on other ThinkPads as well - e.g. the T30.

JASE

mjs110 · #13 Post by **mjs110** » Tue Oct 26, 2004 2:59 pm

Yep, I've got it too on my 570 - but only when plugged into the ultrabase or to the mains.

ichibahn · #14 Post by **ichibahn** » Tue Oct 26, 2004 8:02 pm

JASE wrote:My T41p makes funny noises while it is supplied from the outlet. The noices seems to originate from the lower lefthand side of the palmrest. The noise goes away when I remove the power (and run on batteries).

Could it have someting to do with the clock speed of the processor?

Anyway, I have experienced this on other ThinkPads as well - e.g. the T30.

JASE

we have exactly the same problem... i have a T41 2373-3HA. i have some colleagues using a T40 but they don't seem to experience these weird noises plugged on AC or un-plugged.. when opening programs... etc

obviously my TP is faster than their TP's you might have a point that it has something to do with the processor speed..

oh... and my T41 is hotter that the T40's....

gte204i · #15 Post by **gte204i** » Tue Oct 26, 2004 8:19 pm

dimme wrote:Calloftheblade

I have a T41 and I experience the same grinding noises when scrolling. I was told by IBM and the university helpdesk that it is caused by some capacitors inside and nothing to worry about.

Uhhhh ... I don't know of any reason a capacitor would make audible noise - especially the size capacitors that would be in your TP ... unless, of course, they explode - then they kind of make a popping sound ...

There may be some wierd sort of resonance happening, but I seriously doubt that would result in audible grinding frequencies.

I might believe, however, that noise from the power supply, hard drive, etc. sometimes works its way into the speaker signal, but capacitance would probably tend to reduce this effect, not enhance it ...

I'm puzzled

ichibahn · #16 Post by **ichibahn** » Tue Oct 26, 2004 11:46 pm

these weird noises becomes obvious especially when your sound volume is high...

#17 Post by **BillMorrow** » Wed Oct 27, 2004 1:04 am

capacitors..??!!

BS, pure and simple, common ordinary, industrial grade BS..!!

when this happens again, do a reboot..

i have experienced this when a system is about to crash..
on desktype boxes and thinkpads and servers..

corrupt video driver..??
or bad mouse driver..??
not sure..
but it is 99% software..
capacitors..???! what a load..

Chatbox · #18 Post by **Chatbox** » Wed Oct 27, 2004 1:18 am

Yes, it happens from time to time. Nothing to worry about.

To make some of you feel better (and to tell the truth), the same thing happens on other brand of laptops as well, such as Sony's VAIOs, Toshiba's Sats...It's not just Thinkpads. Don't worry, your computer isn't going to crash and burn anytime soon.

mjs110 · #19 Post by **mjs110** » Wed Oct 27, 2004 3:12 am

To add another 2 cents to this debate, the weird noises are worse when there is no extra battery in the ultrabase; and it seems to have started after IBM UC downloaded the recent battery maximizer upgrade.

Elhabash · #20 Post by **Elhabash** » Sat Oct 30, 2004 12:27 pm

Probably the processor. I didn't believe it at first, but just check, when the processor is under high stress, it makes those same noises.
I don't know why the scrolling animates it to produce those sounds, but at least it's not a problem.

thuur · #21 Post by **thuur** » Wed Apr 23, 2008 5:15 pm

gte204i wrote: Uhhhh ... I don't know of any reason a capacitor would make audible noise - especially the size capacitors that would be in your TP ... unless, of course, they explode - then they kind of make a popping sound ...

Sorry to dig up an old thread on this great forum, but capacitors can really make the funniest noises I can tell you from 15+ years in electronics. Especially high frequency and amplifier (=high current) capacitors. The latter can be really loud, like smashing a big spring (metallic sound) on every beat of the music. Those are all electrolytic capacitors that dry up troughout time. Only replacing them is a solution, since glueing them to all fixed things around it will not permanently work.

I've read a lot about this high pitch noise, since I am blessed with a superb hearing and having a TP 570 with the same issue.

Another cause I've read is the coils in the video circuit start getting loose. Glueing them was proposed as solution, but I have not yet got around to doing that. It seems Toshiba's Satellite series is suffering a lot from this, and indeed, my wife's Tosh has it too. Which of course is no match for our TP's...

Second is the high pitch noise when the AC adapter is plugged in.. Haven't quite figured out what causes this...

I'll keep searching this forum (compliments on the excellent knowledge!), until then I wouldn't mind getting some links to these issues

R,

Tim M · #22 Post by **Tim M** » Thu Apr 24, 2008 12:07 am

thuur wrote:Second is the high pitch noise when the AC adapter is plugged in.. Haven't quite figured out what causes this...

My guess would be some sort of oscillator circuit or switching supply operating at high frequencies.

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