Are you having trouble turning on your Acer laptop? Does it seem like it’s not getting power no matter how many times you press the power button? If so, you’re not alone.
A lot of people have been experiencing this problem with their Acer laptops. In this blog post, we’ll walk you through the power on sequence so that you can turn your laptop on properly.
Keep in mind that if your laptop is still under warranty, you should contact Acer support to see if they can help.
Let’s get to it.
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What Is Power On Sequence On Acer Laptop?
A laptop’s power sequence is the order in which its various components are powered on. This is important because some components can’t be powered on until others are already up and running.
For example, the processor must be up and running before the hard drive can be accessed. Similarly, the display must be operational before any output can be sent to it.
If the power sequence is not followed, components can end up damaged or not working at all. In some cases, following the proper power sequence can also help improve system stability and performance.
Importance Of Power On Sequence On Acer Laptop
So, why is the power sequence important on Acer laptops? Because it helps ensure that all of the components are powered on in the correct order, and that they’re all compatible with each other.
When everything is working together correctly, your laptop will function at its best.
If you’re having trouble with your Acer laptop, following the proper power sequence may help you get it up and running again.
If you’re not sure what the correct power sequence is, consult your owner’s manual or contact Acer customer support.
Power Stages For Acer Laptop
Mechanical off – When adapter and battery not connected but only internal CMOS battery is connected.
Power off (Soft OFF) – Before pressing power on button, the adapter or battery will be connected and power supply will go inside.
Standby mode – After pressing on/off, the first standby volt will be on.
Power on mode power – When in running condition all powers on Lcd, keyboard etc.
Hibernate mode – When your acer laptop goes into hibernation, all power will be closed, power comes on when you press the power button.
Sleep mode – Sleep/standby requires you to press the power button to start.
When required power – Some devices when enabled then their power will be on. These are referring to the camera, Wi-Fi, Bluetooth etc.
How Motherboard Start On Acer Laptop
Here’s how:
- Before adapter/ battery power CMOS battery will give power to RTC Crystal.
- Main vin/pwrsrc voltage generated from adapter or battery.
- Primary Always and AUX power generated from main power.
- All standby voltage generated from main voltage.
- All main running voltage start.
- Clock Vrm section section power supply start.
- Clock generator chip will get enable signal and start giving frequency.
- Power good signal to.
- South bridge supply PCI_RST / PLT_RST to north bridge, and other chip.
- North bridge send CPURST/HRESET host reset signals to cpu.
- After reset bios will read device.
- After bios test is complete, it shifts to MBR of hard disk.
Different Stages Of Power Identify On Acer Laptop
| Mechanical OFF | 3.3vRTC |
| Power off stage power | 3V PCU/ ALW/S5/AUX 5V PCU/ALW/S5/AUX 1.8V |
| Standby stage power | 3V SUS / S3 5V SUSU / S3 2.5V SUS/ S3 1.5V SUS/ S3 |
| On stage power | 3V/5V PCU/S5 3V/5V SUS/S3 3V/5V MAIN/S0 |
| Hibernate stage power | 3V PCU/ ALW/S5 5V PCU/ALW/S5 1.8V |
| When required power | 3V CAM 3V WIFI |
| Sleep mode |
Acer Laptop Motherboard Power On Stage And Different Power
| DIFFERENT POWER STAGE | STATUS | LAPTOP POWER ON | POWER SUPPLY PASSES TO CHIP POWER | ||
| MECHANICAL OFF STAGE 3 | Out side laptop no power connected only internal CMOS battery connected | CMOS battery give power | RTC(real time clock, crystal) iOSs, chip, south bridge some portion getting power, RTC CMOS is connected | 3.3VRTC | |
| POWER OFF/STANDBY STAGE S5 – 52 – PCU / S5/ALW/AUX | Battery or adapter connected to laptop but not power on | Adapter VIN+PWR SRC PCU/S5/VIN Power always on | On/off switch RTC/BIOS CMOS battery power ic discharge section | I/0 power lan south bridge all regulator chip mosfet all high mosfet charging battery | Adapter VIN+PWR SRC 5V 3V 1.8v PCU/S5/ALW/AUX |
| SUSPEND STAGE S3 – G1 SUS/S3 | First it will go to suspend stage then on stage & when shut down to suspend stage | SUS/S3/sustain | On/off switch USB lan bios battery crystal | Touchpad keyboard northbridge ram | 3v sus/s3 5V SUS/S3 2.5V SUS/S3 1.8/1.5DDR |
| ON STAGE S0 – G0 SO/RUN/MAIN | After complete on lcd on all working ok | S0/5V/ON STAGE MAIN | On stage get power dual also | 3V/5V PCU/S0 3V/5V SUS/S3 3V/5V MAIN/S5 | |
| HYBERBATE STAGE S4 – G1 | When on and we keep on hibernate stage | OFF STANDING RAM DATA STORE IN HARG DISK | All power closed and power off stage power only running data store in hard disk as image laptop goes shut down | 5V PCU/S5/ALW 3V PCU/S5/ALW 1.8V | |
| WHEN REQUIRED | When enable particular device its power will on | 5V VCAM, 5V WIFIETC | Bluetooth, Wi-Fi, camera when enable power supply on | 5V Wi-Fi 5V CAM |
Conclusion
As you can see, the power-on sequence for an Acer laptop is a very important process that helps to ensure your device starts up correctly.
If you ever experience problems with your laptop starting up, it may be helpful to know the different stages of power identity and what could be causing the issue.
I hope this article was helpful and provided some useful information about how an Acer laptop starts up.
If you have any questions or challenges related to this topic, please let me know in the comments section below.
