Weird noise from right speaker of Predator G9-593 while gaming

seyf

Hi guys,

I have this ( community.acer.com/en/discussion/534512/weird-noise-after-running-games ) exact same issue with my G9-593 except that the noise comes from right speaker.

After having high load on both CPU and GPU (gaming) the noise on right speaker gradually increases to an unbearable level. None of the following solves the issue:

1. Muting speakers
2. Plugging/unplugging headphones
3. Plugging/unplugging power
4. Plugging/unplogging FrostCore
5. Unplugging any possible hardware (mouse, keyboard, external displays etc).

I thought the laptop had 2 years warranty but on Acer website it seems I only have one year on-site warranty. It's been 14 months since I bought this one. (I am not in the country that I purchased + it will at least take a few weeks before it gets resolved.) Any recommendations for solving this on my own?

ven98

Have a look at this post: https://community.acer.com/en/discussion/534512/weird-noise-after-running-games#latest

Do you have a passport prooving that you are a citizen of the country you are currently in?

seyf

I currently live in Turkey and I am Turkish, but I bought it from UAE. I don't know if I have the receipt that proves my purchase. Would they accept it that way? The laptop is produced less than 2 years ago so it cannot be expired. Btw I think it's better if we continue on this topic as other one was marked as solved.

ven98

If you bought the laptop from UAE and you have residency in Turkey then you are not eligible to claim warranty. Proof of purchase is also essential, without it they won't accept to repair your laptop.

seyf

So any recommendations that I can diagnose this on my own? Even though they would accept to repair, I would not want to stay without my laptop as I also use it for professional purposes heavily.

ven98

If unplugging the charger doesn't help then the problem isn't in the charger. The problem comes from the motherboard, which means that there is short between ground and '+' somewhere. The speakers are connected to ground and if there is current flowing in ground, it can disturb the speakers. Or it could be a loose connection between speaker and ground. There is really no way this to be fixed by non-technician.

seyf

Thanks, I think I may unplug the right side of the speakers from inside. Is it possible that some fine-tuned settings in recent BIOS can cause this? (Maybe some voltage settings for CPU & GPU) I don't know if its coincidence but I think this started happening after recent BIOS update.

ven98

It might be possible the BIOS to cause this. If you have the latest version 1.12 then you can't update it.

You can try resetting the battery. Follow the instruction from this link: https://us.answers.acer.com/app/answers/detail/a_id/34843/~/acer-internal-battery-reset

There might be some static build up in the system so resetting the battery will let the system discharge. After pressing the switch inside the pinhole let the laptop rest for about 30minutes before connecting to mains and powering it on.

seyf

ven98 said:

It might be possible the BIOS to cause this. If you have the latest version 1.12 then you can't update it.

You can try resetting the battery. Follow the instruction from this link: us.answers.acer.com/app/answers/detail/a_id/34843/~/acer-internal-battery-reset

There might be some static build up in the system so resetting the battery will let the system discharge. After pressing the switch inside the pinhole let the laptop rest for about 30minutes before connecting to mains and powering it on.

This seems like a step towards solution.

I resetted the battery and let the computer stay for 6 hours without connecting anything. Normally when I test (with Furmark for GPU and Intel XTU for CPU) the noise was starting at about 6th minute. Now there were no issues until 20th minute mark. I guess longer "rest" sessions or some other way to let the mainboard discharge??? would help but I have no idea what could help. I normally don't shutdown computer when I sleep but I think will from now on.

Rares95

I am getting the weird noise in my right speaker too if i'm mining Bitcoins on my G9 593... Very weird, i never heard it do this before.

seyf

Update
For anyone having the same problem, mine is kind of resolved by letting computer rest. By rest, I mean letting it sleep or hibernate or shutdown when not in use. Normally, I like to keep my computers turned on all the time and my session times are generally above a month (Windows 10 is really stable, most of the restarts are caused by new software installs or mandatory Windows Update restarts).

One of the things that I tried to solve this problem was to let the computer stay turned off for a night after a battery restart (which does not solve the problem alone in my case). The next day I run the benchmark which was causing the noise at some point. I realized it took more time than usual for the noise to start, so I gave it a shot. I let the computer sleep when not in use, and full shutdown or hibernate in the nights. Now I have the habit to shutdown or sleep the computer, and I am not having the noise for about a month.

I don't know if it would work for all cases, but I think it is worth a shot.

Rares95

@seyf But that's a known thing...letting the device cool down will make it so the noise comes up harder. However, once it warms up again and you start transfering files/playing videogames it will shortly show itself.

seyf

@Rares95 well not in my case. I think it adds up if the computer is turned on. I did not change the way I use the computer when I'm active. The noise was coming during the first competitive CS:GO when I started this topic. These days I play for hours nonstop yet I don't have any kind of problems. I've never heard the weird noise for about a month now despite I did not change the way I play games.

Rares95

@seyf Do you have a HDD in your bay?

seyf

Rares95 said:

@seyf Do you have a HDD in your bay?

I have an SSD in the bay.

Phoenix1966

I have been experiencing the same issues and this is not a solution for me. I've had the rig for over a year and I can count on two hands the number of times I've left it on overnight. I always shut down at night and unplug the laptop. One thing I have noticed now is that when I thought the problem had disappeared, it was that the speakers had stopped working but the sub woofer hadn't. That's twice now the speakers have not turned on immediately after staring the laptop, but kicked in 20-60 minutes afterwards.

Since another person disconnected their speakers, but left the sub woofer intact and reported there was no longer crackling, is there any chance your speakers are no longer functioning?

seyf

Phoenix1966 said:

...
Since another person disconnected their speakers, but left the sub woofer intact and reported there was no longer crackling, is there any chance your speakers are no longer functioning?

They are working fine.

seyf

Well, guys, it's back.

Phoenix1966

I caved in and sent mine back last week. lithics heard back from support that his motherboard needed to be replaced.

EmperorBorg

There's another closed longer topic about this, you can read it here:
https://community.acer.com/en/discussion/534951/acer-predator-g9-593-buzzing-noise-coming-from-speakers-under-full-load-with-video?breakffcache=c4e7b

Anyway, in my case the 1st time the Geiger-like noise started was about 1 year ago when I was using it intensively with both GPU and CPU near 100%. In my case, the CPU was getting very hot, reaching 100C. After I re-applied thermal paste, it was better, about 20C difference for the CPU in the same working conditions and the noise was gone.

After a few more months, the noise re-appeared and I did the same thing but unfortunately the noise was even higher, getting to un-supporable levels. CPU was nearly 60C in idle and that with -.12 V setting. Noise was even at low loads, only disappearing in idle mode. Then I noticed that a support of the screw of the cooler has split from the MB and no longer applying enough pressure. I fixed that, re-applied thermal paste again, made sure contacts are good between cooler and CPU/GPU. Now idle temp is between 30C and 40C, no noise in random scenarios. I will also test if it's fine under full load of both CPU and GPU.

As conclusions:
- the noise is definitely coming from the small speakers.
- the noise is related to something that overheats (in my case the CPU was the main suspect, since it reached 100C).
- the noise-generating system may have been done so from design, at least for testing purposes (and probably was left that way in the final product).
- the noise sounds initially like a Geiger counter then, at higher load/temp it becomes extremely loud and the only way you're not going to be disturbed is by using professional headsets.

Since I can't sent it for repairs (like it is suggested in the other topic) because I have to use it daily, I will keep trying to find a permanent fix and will do a testing at full load in the following days to see if noise re-occurs.
I'll update this after a full load test.

In the mean time, if you experience the problem, you could do 3 things to try to reduce the noise:
- lower CPU core Voltage by -.15V at most using Intel's Extreme tuning Utility (easy)
- set your fans to max to reduce temperature further (very easy)
- open it up and re-apply thermal paste (needs a little skill and proper tools)