2018 15 MBP noisy SSD and power issues?

macman4789

macrumors regular
Original poster
Jul 12, 2007
231
2
Hi,

I have recently started using a new 2018 15 MBP with i9 and 512GB SSD. I have noticed that when I plug it in to charge over night, when I wake up in the morning the bottom of the laptop is still warm? It is not significantly hot but just warm where I presume the battery is. The reason why I am asking is, the laptop takes between 2-3 hours to fully charge after which my understanding is the charger should stop feeding any charge to the laptop? So I'm wondering if there is any issue with the power regulation? If I am asleep over night for 6 hours or so, that would mean it should have cooled down by then after charging? I have a 2015 15 MBP magsafe 2 with no similar issues which is not warm a few hours after being full charge.

A second issue is the noise, I recently noticed when I was in a quiet room it seems like I can hear what sounds like an old style hard drive reading/writing. But my understanding is SSDs are supposed to be silent? It doesn't sound like fans but like a hard drive but just not as loud as the older ones under the keyboard. Does anyone else have this as my 2015bMBP with SSD is silent.

I'm wondering whether these are normal with the newer MBP's or whether it's something I should speak to the Genius Bar about?

Thanks for your input
 

fokmik

macrumors 601
Oct 28, 2016
4,397
3,837
USA
Ssd under heavy load has a “hiss” sound, but you should notice it very hard.
The other thing..i don’t know, it was happening a lot,every night or just 1 time?
 

Lennyvalentin

macrumors 65816
Apr 25, 2011
1,429
783
@macman4789
It's not the SSD you're hearing, it's the voltage regulators for one or more of the major components in the system, CPU or dGPU (if applicable) most likely, since they draw the most power and have the most powerful regulators.
 
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macman4789

macrumors regular
Original poster
Jul 12, 2007
231
2
Thank you for your replies. To answer your replies - the power thing happens every time I leave it plugged in over night, I wake up and the bottom of the laptop is warm, not massively hot but as if I’ve just been using it.

The noise is just weird as my 2015 MBP is completely silent but this new one the best way of describing it is an old style hard drive read/writing noise from the keyboard. So you’re saying others have this noise in their 2018 MBP’s?
 

SDColorado

macrumors 601
Nov 6, 2011
4,279
4,244
Highlands Ranch, CO
The noise is just weird as my 2015 MBP is completely silent but this new one the best way of describing it is an old style hard drive read/writing noise from the keyboard. So you’re saying others have this noise in their 2018 MBP’s?
Do you still hear the clicking noise when the laptop is on battery? Or only when it is plugged in? My guess is that it may be related to the PSU.
 

macman4789

macrumors regular
Original poster
Jul 12, 2007
231
2
Do you still hear the clicking noise when the laptop is on battery? Or only when it is plugged in? My guess is that it may be related to the PSU.
The noise is there whether it’s plugged in or not it seems. Doesn’t really seem any different. If it is a ‘coil whine’ noise, what does that mean? What is actually making the noise I can hear?
 

Saeloe

macrumors newbie
Oct 7, 2016
22
9
I can hear hissing sound very faintly when running Blackmagic Disk Speed Test (read and write speeds are 2670-2768 MB/s). The hissing sound is so faint that in totally silent room, I can't hear it in normal laptop-in-front-of-me -position but if I put my ear near the left side of the MacBook Pro, it's audible. Doesn't bother me. i9/32GB/1TB/560X, Manufacture date 2018-09-17, macOS Mojave 10.14.
 

Kris Kelvin

macrumors regular
Dec 28, 2005
221
131
MacBook Pro (13-inch, 2018) seems to have the same issue. The noise is very faint (even less noticeable than on my 15-inch), but it's there.
I listened to a handful of our 13-inch ones, and they all have it, so... not sure if there's ANY MacBook Pro 2018 that's completely silent. :)
 

Ploki

macrumors 601
Jan 21, 2008
4,102
1,395
MacBook Pro (13-inch, 2018) seems to have the same issue. The noise is very faint (even less noticeable than on my 15-inch), but it's there.
I listened to a handful of our 13-inch ones, and they all have it, so... not sure if there's ANY MacBook Pro 2018 that's completely silent. :)
not anymore. my 2012 was silent, but the dreaded toshiba ssds whine
 
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