Acer V3-572G-51XW - mistery whine

Hi all,

I'm new here but would really need your help.

I Have recently bought the above mentioned laptop with the following specs:

V3-572G-51XW - Intel Core i5-5200U, 8GB RAM, 1000 GB HDD, 15.6", no ODD, NVIDIA GeForce 840M (2 GB VRAM), BT.

However, I've noticed a whine similar to that of a defective component, such as a capacitor.
The whine would only disappear if booting windows in safe mode or if I uninstalled the nvidia drivers. As soon as the drivers are installed the whine comes back.
I
I sent it to be repaired and the Acer tech support replaced the MB with reference NB.MLC11.007 which I think is the whole motherboard.

The computer came back 10 days later the same and I sent it back again. They replaced the MB again saying a capacitor was noisy.

I got it back last Friday with the same noise. However, I noticed that the whine goes away completely if I start a game (world of warships in this case) and keep it in the background. If I turn the game off, the whine comes back.

When they replace the MB, the GPU and CPU are also replaced?

Do you think this is related to the fan? Any way to edit the fan speed?

In case this is related to the nvidia gpu, any way to test it by changing voltages or something?

This whine is very annoying and the tech guys just seem to replace the motherboard each time I send it back.

Thank you!

 

They can't do anything else as both the CPU and the GPU are embedded - not in sockets.
Does the whine also happen when you are on the battery power?

 

Thank you for your reply!
Yes, it does in both battery and AC supply.

It seems related to the GPU, as the high pitch goes away if I boot in safe mode, if the nvidia drivers are uninstalled or if a game is running.

Is there any way to force the gpu to have some sort of activity, hoping that the pitch goes away? Or mess with some slight overclocking?

Or force the fans to a higher rpm just to test if it makes any changes?

Thanks!

 

Fan won't make any changes but more importantly it's kind of hard to control notebook fans these days. Maybe through RW Everything but you'd have to know exactly what parameters to change and how.

I assume a capacitor is making that whine when GPU is in power-saving mode (lower clock and lower voltage). You may try to disable it if possible (I haven't had an nVidia card for a while and I don't know when settings are in the control panel for it these days). This will have an adverse effect on battery life and will increase temperatures somewhat.

Or you can, you know, try to ignore it. These sometimes vanish overtime, but sometimes they don't - capacitor whine is an actual thing, although usually in more powerful notebooks.

 

Thank you for you comment.

One other thing I noticed:



How can I have a 820M geforce ?
Should this have an 840M geforce?

I already tried installing and uninstalling drivers etc and it always detects it as an 820M.

 

Well, it does seem to be 820M indeed - 840M would have 384 streams, not 96.
Do you have specs on the box that conform it should be (or was) 840M?

 

I'm guessing someone put in the wrong motherboard?
Ffs, this is getting very annoying.

I'll have to send it out to RMA yet again!!

Yes, this did have a 840M. See the sticker in the pic below.

 

So they did indeed replace your mobo with an "almost" identical one.

 

Yep, just got their confirmation.

I can now choose to get a refund or a replacement laptop. :|

 

Take a refund.

 

That's what I was thinking about.

Considering the Clevo W650 which is about the same price (590ish EUR).

Thanks for you help, though! I'll post back.

 

Hi,

So, to wrap this up.

I ended up getting a replacement unit instead of a refund, although I didn't really get a chance to choose if I wanted a refund or a replacement, lol.

Anyway, they sent me the same model, but with a DVD drive which my laptop didn't have and no more whines.