MacBook Pro :: Clinging Sound From System / Low Voltage Current When Touch Aluminum Unibody
Oct 6, 2010
I finally put my hands on a brand new MacBook Pro 15" (base model) with Hi-Def Glossy Screen...I'm playing with it since a couple of days and I wonder if it is somehow defective...I've already passed through the following thread but I haven't found the answers I'm looking for....URL
I've also searched trough the forum, found a couple of related threads but no conclusive answers were given, so that's why I'm posting my doubts and asking for you to comment or give your personal experiences or advices...
1) Power dazzle (sorry I don't know how to better express it)
When I plug the cable to recharge the battery and the battery gets finally completely recharged, I feel a sort of low voltage through my hands when I touch the aluminum unibody... I was used to feel the same thing on the touchpad of my former pc when its logic board started to break... (that's why I'm so worried about this potential issue)Is it normal? Do you experience the same thing? Is it to notify the battery is fully charged? I don't think so: a pop-up message would be much more effective...
2) Clinging sound
When I use the MBP in a quiet room, I often hear a clinging sound from the touchpad... I suspect it is the HDD's head that moves to perform an operation... or is it something completely different? In any case, it is very annoying: when I hear it, I immediately start to search myself for any tab of a zipper that may produce it...Again, is it normal? Does your MBP is the same? Does it annoy you? Am I simply paranoid? Did you do something to effectively reduce it (SSD)?
3) Battery life
I tried to calibrate the battery properly, nevertheless I didn't experienced the advertized battery life... I think it depends on the fact I have the Hi-Def screen that is more power demanding than the default one...
Is this the effective reason? How long does your battery last? (I cannot post my value because I just discovered the option to show time besides battery icon...) Any suggestion to make the battery last longer? (I already use cable rather than wi-fi and Intel graphic card rather than Nvidia one)
4) If I move my finger tips on the bottom of the unibody enclosure, I can feel a small step between the enclosure and the cover (something less than 1/3 of a mm) in the area below the touchpad that progressively disappear toward the hinge area...
Does your cover integrate seamlessly into your unibody enclosure or not?Is it an indication of some sort of refurbished intervention or is it normal this way? How can I understand if it is a refurbished MBP or a brand new one? (It's been bought by my university, so I don't know exactly what has been ordered... there is something I have to look for to understand the case? A particular notice, booklet or something like that?)
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Jan 18, 2010
I recently got a new lcd for my macbook unibody, started putting it in, connected the lvds connector and the screen lit up fine. After i finished putting the computer back together and after a restart, i noticed that the backlight had gone out, but the screen was still working. I checked both sides of the lvds cord to see if they were connected right, with no luck. So I tested the old lcd, and i found that the backlight was not working on the old lcd screen either... Im hoping someone could tell me what its likely to be? Its out of warranty, so im out of luck there...
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Sep 12, 2008
I recently traveled to Europe with a MacBook Pro, and plugged it into the outlet with a travel converter. My understanding is that the brick on the magsafe cable works as a transformer and it is safe to plug into a European outlet. I've never had a problem with other laptops.
Everything worked fine with the machine, except I could always feel an "electric" sensation through my hands when touching the aluminum case. This was especially apparent when running my fingers across the top -- it was as if I could feel an electric current running through the case.
This seemed harmless, and I ran the computer without fail during my time abroad. My question is out of curiosity -- is this sensation normal? What exactly is it?
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Dec 8, 2009
I am one of the unfortunate early adopters of the aluminum non-pro unibody macbooks, and I just wanted to as some general information about them (even though that may seem a bit odd:
A)Does anyone know exactly (month-wise) how long they were produced?
B)What the cost was (in my case for the 2.4 ghz. It wasn't put on my credit card, so I can't look it up)
C) The initial price (is it the same as now?) of the MBP aluminum unibody 13"
D) If there was ever anykind of restitution for the early adopters (there wasn't that I know of, just checking)
and before anybody tells me that I'm just complaining, Look (assuming my facts are straight, which is why I am making this thread)...I bought this laptop and not but a few months later, they basically re-released a pumped up (and by pumped up I mean included features that were standard in many other laptops at the time I bought mine, for example 4gb of ram instead of 2..) version of it at a lower price. Now I'm not whining, the laptop has served me pretty well (although it's had just as many hang-ups and problems as any other laptop I've owned, apple or other) I'm just a bit dissapointed with apple, and if things stand as I believe they do, this will certainly be the last apple laptop (the only thing from apple that I do buy) I buy .
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Jun 27, 2012
what should i used to clean the aluminum unibody, when it comes to the lcd screen i know alcohol and other solutions are bad for lcd because of the thin flim layer but the macbook pro has glass so it should'nt hurt the screen to use those kind of products.
Info:
MacBook Pro, Mac OS X (10.6.8)
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Mar 14, 2010
I got my macbook during November of 2009 but two weeks ago it started shutting down by itself once I touch the magsafe of the macbook or remove the magsafe. All it needs is a simple touch and it shuts down. When it does shut down, the light indicator doesn't come on anymore. I have to keep removing the magsafe, and plugging it back in like 20 times until it starts charging again. So now I just let it fully charge every time I use it since any sudden movement will cause it to shut down. I will be making an appointment next week at the apple store because I had no time to go these past 2 weeks. I never dropped it and take good care of it. I am just wondering what might be the cause of this? I hope they do not take weeks to fix the mac since I have a lot of homework to do
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Mar 29, 2012
I have found strange black spot on my MBP13 2011. is there anything black beneath the mbp aluminum unibody case?
Info:
MacBook Pro (13-inch Early 2011), Mac OS X (10.7.3)
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Nov 3, 2008
I did this for the Macbook Pro's a while back, but I'm a Macbook guy now. There are a few other threads with profiles but it's no good if you use a profile made from a different panel than what you have. I'm just trying to consolidate things here.
I will try to keep this post current; please only submit profiles created from hardware, not those done by human eye (meatware?) And be sure to say which panel the profile is for. Thanks to everyone for contributing and improving the Macbook experience!
How to determine your panel type/code
How to install and use color profiles
Basic tests to determine if a profile is a good fit:
Black level
White level
Gamma
9C89 (LG)
See attachment (rezonat0r-9c89.zip)Spyder3 Pro. 2.2 Gamma, Native and 6500K whitepoint. I recommend using the Native whitepoint.See attachment (rezonat0r-9c89-alt.zip)Spyder3 Pro. 2.2 Gamma, Native whitepoint. This is an alternate profile made from another Macbook with the LG panel. It is similar to the previous but slightly darkerjessica's profileSpyder2 Pro. 2.2 Gamma. Native whitepoint (I think - not confirmed)
9C8C (AU Optronics)
See attachment (rezonat0r-9c8c.zip)Spyder3 Pro. 2.2 Gamma. I only did a calibration at native whitepoint (honestly, if you really need 6500K then you won't be using a Macbook screen, or any laptop screen for that matter)
9C8A
See attachment (rezonat0r-9c8a.zip)Spyder3 Pro. 2.2 Gamma. Native whitepoint.
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Feb 17, 2009
Do the current MacBooks, both the white polycarbonate w/NVIDIA GeForce 9400M and the aluminum (Unibody) use the same or different LCD panels?I know that the white MacBook has fluorescent back lights for the display, whereas the aluminum MacBook has LED back lights. I also know that the white MacBook has a glossy LCD display, whereas the aluminum MacBook has an even glossier glass panel over the LCD display.I understand that both MacBook Air and MacBook Pro models use better LCD display panels, but I'm not in the market for either so that's a moot point. Since I've read conflicting reports as to whether one MacBook display is better or worse than the other what I'd like to know is if the physical LCD panel used in both varieties of MacBook is the same or different?
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Apr 24, 2010
Is the white one the same size as the 13" aluminum that now went pro?Pretty much, I want to know if I buy a case for the original 13" Metal uMB from InCase, will it fit on this plastic one? They don't have blue for this, but they have blue for the original aluminum one.
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Nov 15, 2009
So my MacBook has recently lost it's ability to output audio through the built-in speakers or another device. I'm quite frustrated as I watch and listen to tons of multimedia, and not being to hear a thing is quite sad. When I hit the volume up/down keys, all I get is the on screen audio level indicator and thats it. I've restarted a few times already, resetted the PRAM as well as the SMC and nothing improved. I want to try avoid taking it to the Genius Bar as I'm really not going to have the time to do so this week, and I believe there is a simpler solution.
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Jan 5, 2011
For the last two weeks I have been using my new macbook pro. I'm a bit concerned about the sound quality that i get from the speakers. According to specs it has a subwoofer (I know you can't expect much from a tiny laptop) but I still can't really hear any base/low frequencies and it sounds like a tiny cheap transistor radio . The volume is pretty high, I can listen to youtube etc, but its really almost only trebble. I expected a bit more. Is it normal for those macs or is it just mine?
I had Sony Vaio before and then Dell XPS 1530. Sony had way better speakers and even Dell seems to sound a bit less can-like/tiny...
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Apr 6, 2009
Whenever I wake my computer from sleep, there is a crackling sound that comes from the hard drive. After that, every five minutes or so, the crackling sound continues. It's like the sound of some crinkling a plastic sheet/static-y sound. I can hear the hard drive whirring and the crackling sound coming from that.
Is this normal? I have a 2.4 ghz Macbook aluminum, bought in Oct 2008. I'm hesitant to bring it in right now because I have finals coming up in 2 weeks and I need my laptop for it. I've already brought my Macbook in and had it sent in two times due to issues w/ the keyboard (keys not working or falling off), and each time it took about a week to get it back.
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Jul 13, 2009
Has anyone else with the Alum MacBook loaded Vista and experienced sound glitches when playing any sounds? My machine will have sound stuttering lasting 3-5 sec occuring every 2-3 min. Works fine in OS_X but never in Vista. I,m trying to decide if I need to return or exchange the machine. AppleCare is clueless on the problem other than blaming the drivers. I have reloaded Vista Home prem 32bit, BootCamp 2.0, Updated 2.1 BootCamp drivers, changed the realtek driver in Vista, updated to 1 month old realtek new driver, and lastly disabled the onboard audio and installed a new Creative external USB sound card ALL to NO Avail. I have 5 days left to return the notebook, but otherwise I love the new MacBook.
Information:
MacBook Alum
Mac OS X (10.5.5)
OS X/Vista
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Sep 9, 2009
I have been having this issue forever and want to do something about it now. Whenever the sound is mute on my notebook, and there should be sound playing (Ex.: Startup Chime), instead I get a LOUD pop noise. I understand the whole thing with the sound chip powering down to save battery life, but that requires the speakers to be un-muted. In my case, they are mute, and never get un-muted. What do you guys think. Logic Board/Speaker System Replacement?
Information:
Aluminum Unibody 2.4GHz MacBook (10.5.8)
Mac OS X (10.5.8)
2nd Gen. iPod touch (8 GB) with 3.0
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Feb 12, 2010
I want to know if there is some where i could purchase the part for the 15 inch unibody macbook pro's with the anti-glare option (aluminum bezel and matte lcd), to replace my glass/glossy lcd from my late 2008 unibody. I looked up the tech restore option but its looks crappy, id much rather pay for the parts and see if its swappable.
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Jan 14, 2010
My brand new MacBook Pro seems to have a problem.
When I am downloading off the internet, I can hear a popping sound every 20 seconds. The sound seems to come from the hard drive.
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Sep 22, 2010
Just noticed a problem with my 2009 Aluminum MacBook Pro. Whenever i move my MacBook Pro it makes a weird creak dull ringing sort of sound. I also hear this sound when I press on the underside or grip tightly to it.
What could this be?
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Jan 7, 2011
I have a 13" 2.4 ghz intel core 2 duo current gen. Macbook Pro. I was wondering if I can run Grand theft auto on my macbook pro (i do not care about quality/rendering, I just what to know if it will run). By the way, I have bootcamp running windows 7.
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Dec 28, 2009
Since then I've replaced the HDD, NIC, and a cracked topcase, which is now cracked again - I'm careful with it, but strong magnets + plastic + time = crack. It's not my primary computer, but it's still nice to bring to school with me.So my question is, does anyone make an aluminum replacement case and topcase for the plastic macbook? Only the topcase is damaged but after however many years with the same laptop I'd like a change (not a huge fan of plastic in the first place).
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Feb 18, 2009
I'm thinking of getting the Macbook 2.0 ghz model for the family room. I'm wondering about how good and loud the sound quality is from the new Macbook. Kids like to watch slingbox and when I heard the Macbook at store, it didn't sound so great or loud enough. But it could be the high ambient sound of the store.
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Jul 20, 2010
I've now seen 2 machines have a logic board failure from letting the battery run dry (which shuts the computer down). I suspect the voltage regulator based on what I've seen and reading up on what the board level repair guys are finding. My question is does letting the battery run out stress the voltage regulator and is this situation to be avoided at all cost?
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Nov 2, 2008
I have found the magnetic end on ebay to repair my power cord ( one of the pins doesnt spring out anymore) Does anyone know how to get the power brick apart without wrecking it?
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Jan 2, 2009
if anyone else is having problems with their unibody Macbook pro screen getting washed out after a while - especially if the computer has been put into and woken from sleep. I run a 24 inch dell monitor along side my MBP in dual monitor mode, the MBP the slave monitor, with the Dell the main monitor. After a while of use, approx 2 hours, the macbook pro screen fades out/appears washed out. It seems to settle after either a restart or dimming the MBP screen to black for a few minutes. My MBP is not on a cooling stand but I'm going to get one Is this a heat thing, a firmware thing or a defective hardware? I'm running 10.5.6 and have updated the firmware/efi as per apple updates.
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Oct 24, 2009
I need the thoughts and advice from your seasoned Mac people - I have 2 MBP's - 1 15" aluminum, one last years model 17" Unibody (with Black around screen). The 15 has run great since day one. The 17" was ok, but now is locking up and causing me to reboot, fans seem to run on high all the time, and it is very slow to react while using the OS, it gets worse until it locks up. I have upgrade to Snow Leopard thinking that that might fix it, but it has not.
When I got it, I restored from the back up of my 15" using carbon copy cloner. I only imported users and data such as pictures and music. Do you guys think that this is a hardware issue or a or should I back all my stuff up and then blow everything away and reinstall from the ground up with a fresh SL install?
When I called apple they tried to sell me apple care and told me that it was out of the full warranty and if I send it I would to pay for what was not under warranty. SO I am hoping that someone has seen this and has a fix that I can do without having to take it in.
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Apr 27, 2010
I have a 2,1 macpro that I am considering for an upgrade when the 2010 models come out. I am currently booting with an Intel G2 SSD that I would like to swap directly into the new box. I dont want to wipe and reformat it.I have done this successfully with PC/motherboard upgrades. Not sure if it will work with OSX. Will I need to make sure I have the video card driver installed, as that will be likely be different? Or are all the necessary drivers in the OSX installation?
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Apr 16, 2010
I am tempted to jump on getting a new Mac Pro now instead of waiting. Primarily because i dont want to be priced out of getting the higher end model with more cores. If they do come out with a 6 and 12 core config. i would want to buy the 12 core but a lot of rumors around here and on other sites say that the new models will likely come with a price increase. potentially leaving me having to buy the 6 core model. 8 core current Vs 6 core future This makes me think i'll just get the 8 core current. BUT Are there any features that apple may add that would blow the current models away. USB 3.0, BluRay, etc. I can live without many of these things.. but perhaps i am missing something.
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Dec 12, 2009
Every once in a while my Mac Mini will start to chirp/squeak. It almost sounds like crickets. It started doing it again about 5-10 minutes ago and just stopped as I began typing this post. Does that sound like it could be the fan making the noise or the hard drive? I would think that if it were the drive I would here it MUCH more often.
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Jun 19, 2009
I am thinking of purchasing RAM that lists 1.9V. Just curious as I do not know the spec for Mac Pro.
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Aug 27, 2010
How many others are having issues with their applications opening up much, much slower (example Bento taking a min as compared to seconds before applying the patch) since the last OSX Security Update.
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