JackE Trailblazer

If it was mine and the machine seemed to be working OK, I would NOT due to the risk of undesirable side effects or worse. There are no 100% guarantees of zero risk or of seeing any improvements.

>touchpad didn't work even BEFORE installing this Windows 11, i.e. since I installed the new motherboard. > > Then please show screenshot of Device Manager in the official Windows version that is actually supported by Acer on your new mainboard. At the same time, also show screenshot of this official Win10 or Win8x version…

Congratulations! Thanks for reporting back on your success!🙂

>what temperature the fan normally kicks in? > >

Your A515-57 model should have only one GPU that's integrated within the CPU chip. The A515-57G model is similarly equipped with an integrated GPU/CPU but also has an additional separate higher performance dedicated discreet GPU chip. The 2nd fan cools this discreet GPU chip but only if and when it's present on the…

The CPU fan seems to have been repeatedly exposed to very humid conditions with evidence of water vapor condensation on the on the thermal module ducts. If you have a second fan, it may not be functional for this particular mainboard with only one GPU. From your description, the blade bearings on both fans are probably…

> >still now the option is changeable but the option only apply after we shut the system and rebooted it> > This often happens due to 3rd party programs or apps that you may have downloaded, run & load into RAM. It's hard for me to determine which program you are loading that may be interfering with Acer app to change…

The thermal module & ductwork from CPU/GPU heatsinks to the fans.

Just as a reminder to all, the mainboard has been replaced. The issue now is an unresponsive touch pad in a claimed customized unofficial Win11 version. Neither old nor new mainboards are currently listed as officially Win11 compatible.

Please show a phone photo of the bottom of the laptop with bottom cover removed if possible.

> >On the version 2.09 there was no such thing and fast boot worked well.> > What problem were you trying to fix by changing from v2.09? BIOS updates are often meant to fix problems that might arise in some but not necessarily all machines due to unannounced production changes. Accordingly, unless there is a critical…

Cyph360 Does the backlight momentarily light up when first turned on?

This is normal if GPU temp is going above ~86°C, CPU ~90°C.

You can usually speed BIOS reset by shorting the CMOS coin cell +/- terminals on the mainboard for about 10 seconds. Make sure battery is disconnected along with the coin cell removed when doing this.

> >I CANT CHANGE TO OTHER COLOURS > > > >sometimes it changes> > When does it change sometimes — or when did it change sometimes? Now? A month ago? Two months ago? The day you turned the machine on for the first time? In other words, did it ever really change or you don't remember?

Desculpe. Se você tentou reconectar o cabo à tela ou aos soquetes da placa-mãe com a bateria ainda conectada, a GPU agora pode estar danificada. Sorry. If you tried to reconnect the cable to the screen or mainboard sockets with the battery still connected, the gpu now be damaged.

Shubh1998 This symptom suggests your battery may be at the end of its life if it was never replaced.

> >my laptop worked with Win11 too, with no any problems with Acer official drivers, including the touchpad.> > > >It's custom win11 pro x64 with all bloatware removed. Updates, defender, etc. are all working and the laptop works great 4th month already with no any problems, much better and speedy than win8 or win10. As…

> > I tried both elantech and synaptics drivers. Still the same > > No. This is the point. These are probably generic Elantech or Synaptic drivers for Win11 or recent Win10 versions. You see, it's highly unlikely that they are proprietary Acer versions of these drivers in current Windows installers specifically written for…

It's still possible though slower to navigate an installation without a mouse or touchpad by using certain keyboard keys. For example, tapping the tab key moves the cursor around the installation screen to select or highlight an option. The enter key will then execute the tab selected option. And, as Billsey implied,…