Laptop Motherboard Programmable I/0 Chips

 => List of ENE I/O Microcontroller Chip: –

– ENE kb9012

– ENE kb9012

– ENE kb9016

– ENE kb9018

– ENE kb9022

– ENE kb9028qc

– ENE kb9010

– ENE kb3930qf/b1

=> List Of ITE I/O Microcontroller Chip: –

– ITE it8585e

– ITE it8586e

– ITE it8985e

– ITE it8587e

– ITE it8522

– ITE it8987e

– ITE it8589

– ITE it8522

– ITE it8380E 192kb

– ITE it8380VG 192kb

– ITE it8995E-128

– ITE it8886H

– ITE it8886he

– ITE it8386

=> List Of Nuvoton I/O Microcontroller Chip: –

– Nuvoton npce288na0dx

– Nuvoton npce388na0dx

=> List Of SMSC I/O Microcontroller Chip: –

– SMSC MEC 1609

Faults That Occur In ME Region Problem:

 These are the faults and signs that occur in ME Region problem.

1- When you turn on the laptop at first attempt, the laptop will turn on but the display will not come. At the same time turn your laptop off by pressing the power button. Try the second attempt and turn your laptop on, it will show the display now.

2- In the second situation, you will try several attempts to turn your laptop on, but it will not show any display. In the meantime, it shows out the display at your any try and your laptop along with Windows starts running perfectly. But, when you shut it down and starts again, it creates the same problem of not showing the display.

3- Some time fan run at full speed and PCH heats up, whether the display come or not but your laptop turn of within 15 sec to 5 min.

4- When you press the power button, the display comes after 20-60 seconds.

5- In some cases, CPU temperature is always set at 100%.

6- One of the faults is that laptop runs for 30 seconds, 30 minute or 1 hour and sometimes automatically shut down or restart.

7- Sometimes there is Windows OS loading problem.

how to fix Bios ME Region Problem

 Step 1: Download intel me/txe injector.

Step 2: Then, download the database (Intel ME firmware).

Step 3: Run intel me/txe injector, it will ask first time to locate a folder where you save (intel me firmware). After you locate the folder, it will take 2 to 15 sec to load (intel me firmware) then it will show the menu.

Step 4: Just click (open bios) and select your desired bios.

Step 5: Click on (save new bios) button, the software will clean ME Region Bios.

That’s it, your problem has been resolved. Now, just reprogram your clean ME Bios Bin

How To Clean ME Region Bios?

 Now, you can clean ME Region Bios as simple as ABC. Just follow the steps told in the video for better understanding. You can also follow the written steps of how to fix Bios ME region given under the video.

Note: It is to be noted that, if your laptop motherboard has 2 Bios EEPROM Ic i.e, EC and Main, then you will put the main bios file in this software. The ME Region firmware is stored in the main bios file.

What Is The ME Region Problem?

(Management Engine Region) 

One of the major cause of the ME Region problem is that you take the bios from the other laptop and write it on your EEPROM Ic. Or you download the bios from the specific website or somewhere else and programme it to your motherboard. It is because the information of your motherboard’s PCH doesn’t match to the bios that you’ve installed.

How To Use Dc Power Supply For Dell Laptops

 I will teach you how to make dell charger. All you have to need is DS2501 (EPROM) ic.This ic has three legs, two of them are in use and the third one is spare. First leg of the ic is called ground, second is known as data and the third leg is spare which is not connected to anything; as I had shown you in this picture. I use the wire that is mentioned in the first picture for my dc power supply in laptop checking. You can convert the chargers of Toshiba, Acer or Asus into Dell by making this cable that is connected to ic. And you can also use this ic in repairing of the Dell charger. When you will check the bios of Dell laptop , there will be mention that 90 watt charger is connected. Each laptop has different range of wattage. For example, Dell alienware laptop is of 220 watt and mostly laptops which are coming now a days are of 90 watt. The ic DS2501 which we are giving is of 90 watt.

How To Identify N-channel And P-channel MOSFET

Finding the difference between n-channel and P -channel MOSFET can be tricky. But, I will tell you how to know N-channel and P-channel MOSFET easily. The easy method to recognize that which is that particular MOSFET is by marking code given on it. The ending of the marking code tells us that whether the MOSFET is N-channel or P-channel.

Main Difference Between N-channel MOSFET And P-channel MOSFET:

The significant difference between the two MOSFET is:
N-channel MOSFET ends with even number, i-e, 0, 2, 4, 6, 8
P-channel MOSFET ends with an odd number, i-e, 1, 3, 5, 7, 9

Examples For N-channel MOSFET And P-channel MOSFET:

N-channel Mosfet:

This N-channel MOSFET ends with 2, which is even number.

This N-channel MOSFET ends with 8, which is even number.

This N-channel MOSFET ends with 0, which is even number.
This N-channel MOSFET ends with 2, which is even number.

This N-channel MOSFET ends with 4, which is even number.

This N-channel MOSFET ends with 6, which is even number.

This N-channel MOSFET ends with 6, which is even number.

P-channel Mosfet:

This P-channel MOSFET ends with 9, which is odd number.

This P-channel MOSFET ends with 3, which is odd number.

This P-channel MOSFET ends with 7, which is odd number.
This P-channel MOSFET ends with 5, which is odd number.

This P-channel MOSFET ends with 3, which is odd number.

This P-channel MOSFET ends with 5, which is odd number.

This P-channel MOSFET ends with 5, which is odd number.

This P-channel MOSFET ends with 9, which is odd number

How to use equvalent I/O chip on the laptop motherboard

The specific I/O chips are used on every laptop motherboard. Sometimes, it is difficult to find that specific I/O chip when the first one got damaged. In this how-to session, you will know how to use altered I/O chip on a particular laptop motherboard. In below, I have given the various range compatible super I/O controllers with their specific laptop motherboards. In the future, we will keep updating the range of compatible I/O controllers.
– ENE:-

Here are various ENE I/O chips. I have given the name of other compatible along with them. You can use them in the particular laptop model given with them. Have a look

 

– WINBOND: –

The list of Winbond super I/O chips is in the following:-

– Nuvoton: –

Here is the table of Nuvoton compatible I/O chips with their respected laptop motherboards.

– ITE: –

The compatible ITE I/O chips are as follows.

 

– SMSC: –

Take a look at the table of compatible SMSC I/O chips.

• 

How To Program Laptop KB9012 I/O Chip

 

How To Program Laptop KB9012 I/O Chip

 

How To Program Laptop KB9012 I/O Chip. In this article, I am going to introduce you with the procedure that how to program laptop KB9012 I/O chip. As, you know that, oftenly there are two bios in the laptop’s motherboard. One is the main bios and the other is CE bios. Main bios is of more Mb’s than CE bios.

In the latest laptops, the processor is integrated within the motherboard and has only the main bios chip. These laptops contain the KB9012 programmable I/O chip. This I/O chip contain all the features of a CE bios ic. All laptops with KB9012 or like the same programmable I/O chip has the CE bios file store within it. In this method you will come to know, how to program laptop KB9012 I/O chip and other programmable I/O chips. The method is same as for all programmable I/O chips as explained in the following.

Mostly Dell laptops gives the 7 beeps and in some of them, there is the problem of I/O CE bios. The I/O CE bios is corrupt due to which it gives the beeps or do not show the display.

Now, if you have to programme the I/O chip, the connections of the I/O chip can be find in the keyboard connector. In the above featured image, there are ksI7, ksI4, ksI5, ksI6 and ks03 connections of the I/O chip. I have found these connections from the laptop motherboard diagram. This is 30 pin keyboard connector. I can’t tell you like this that which wire will be attached to which connector. Because, every laptop differs in it. The pin outs ksI7, ksI4, ksI5, ksI6 and ks03 are different for every laptop’s keyboard connector. You have to do it yourself by reviewing the particular laptop’s motherboard diagram. That, which connector needs these pin outs. I have told in the pictures; where the particular wire will be connect with RT809F programmer.

There are several motherboards which need 3.3 volts to programme the I/O chip. Connect the wire as shown in the picture that at any area where there is always 3.3 voltage. Plug in the charger for giving power to the motherboard but, kept in the mind not to power on the motherboard.

How to Disable the Windows 10 Startup Delay

Open the Registry Editor by hitting Start and typing “regedit.” Press Enter to open the Registry Editor and then permit it to make changes to your PC.

In the Registry Editor, use the left sidebar to navigate to the following key (or copy and paste it into the Registry Editor address bar):HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Serialize

If the Serialize key doesn’t already exist, you’ll need to create it. First, go to the following location:

HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\

Right-click on the parent key ( Explorer ) and choose New > Key. Name it “Serialize.”

Now, right-click the Serialize key and choose New > DWORD (32-bit) Value. Name the new value StartupDelayInMSec .

Next, you’re going to modify that value. Double-click the new StartupDelayInMSecvalue and make sure the value is set to 0 in the “Value data” box.

Click “OK” and then exit Registry Editor. For the changes to take effect, you’ll need to restart your computer. You and any other users should no longer experience the delay forced upon you by Windows.

If you ever want to re-enable this delay because your startup programs are demanding too many resources upon signing in, head back into the Registry Editor and delete the StartupDelayInMSec value by right-clicking it and then clicking “Delete.”

Find Your Windows 10 Product Key Using a Windows Registry Method

First, open Notepad by right-clicking anywhere on the desktop, hovering over “New,” and then selecting “Text Document” from the menu.

Copy and paste this code into Notepad:

Set WshShell = CreateObject("WScript.Shell")
MsgBox ConvertToKey(WshShell.RegRead("HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\DigitalProductId"))

Function ConvertToKey(Key)
Const KeyOffset = 52
i = 28
Chars = "BCDFGHJKMPQRTVWXY2346789"
Do
Cur = 0
x = 14
Do
Cur = Cur * 256
Cur = Key(x + KeyOffset) + Cur
Key(x + KeyOffset) = (Cur \ 24) And 255
Cur = Cur Mod 24
x = x -1
Loop While x >= 0
i = i -1
KeyOutput = Mid(Chars, Cur + 1, 1) & KeyOutput
If (((29 - i) Mod 6) = 0) And (i <> -1) Then
i = i -1
KeyOutput = "-" & KeyOutput
End If
Loop While i >= 0
ConvertToKey = KeyOutput
End Function

Next, click the “File” tab and select “Save As.”

In File Explorer, set the “Save As Type” dropdown to “All Files” and give your file a name. You can use any name, but it has to be a .vbs file You can name it something like: productkey.vbs

Once you’ve entered a file name, save the file.

You can now view your Windows 10 product key at any time by opening the new file.

How to Find Your Windows 10 Product Key Using the Command Prompt

 

Find Your Windows 10 Product Key Using the Command Prompt

To find your Windows 10 product key using the Command Prompt, you’ll need to open the command line application with administrative privileges. To do this, type “cmd” in the Windows search bar.

Command Prompt will appear in the search results. Right-click it and select “Run As Administrator” from the window that appears. If prompted, enter your Windows account password.

Once open, copy and paste the following command and then hit the Enter key:

wmic path softwarelicensingservice get OA3xOriginalProductKey

The 25-digit product key will then appear.

Note: This method displays the Windows product key stored in your computer’s BIOS or UEFI firmware. In other words, it shows the original Windows key your computer came with. If you’ve installed Windows with a different key since then (or acquired a digital license), it will be different from the current key in use on your PC. If you want the current key in use on your PC,

Black Screen With Cursor (KSOD) on Windows 7, 8 and 10

 Method 1: System File Checker Scan in Safe Mode (Windows 8/8.1/10/7/Vista)

After you have logged in the safe mode with networking, hold Windows key and press R. Type cmd in the Run dialog and click OK. Then, type SFC /scannow in the black command prompt and hit Enter. Wait for the SFC to finish scanning, after it has finished scanning, reboot the computer and check if you are able to log in, if not the boot back into Safe Mode and continue with the steps below (system restore)

Method 2: System Restore in Safe Mode (Windows 8/8.1/10/7/Vista)

Click the Start button and type system restore in the Start Menu‘s search and hit Enter OR open run and type rstrui.exe then Click OK. You can open run by holding the windows key and pressing R.

Click the System Restore option from the search. After it loads up, place a check on Show More Restore Points and click Next.restore-points-more

Select a restore point by looking at the dates when your computer was working fine. Click Next and Finish. This will start system restore, and the computer will reboot after the reboot has finished. If the black screen issue still exists, follow the next method.

Method 3: Remove VGA/Display Driver In Safe Mode (Windows 8/8.1/10/7/Vista)

Reboot back into Safe Mode. After you are logged in, do the following steps:

Hold Windows key and press R

Type hdwwiz.cpl and click OK

Device Manager

Typing in hddwiz.cpl

Expand Display Adapters. (make a note of your display adapters name)

Right-click on it and select Uninstall.

After it has been uninstalled, reboot the PC back into normal mode and re-download the latest drivers.

Method 4 :alt+ctrl+del

selct new run type 'explorer'

and enter

and remove display driver

How to Download ISO Files of Older Versions of Windows 10

 How to Download ISO Files of Older Versions of Windows 10

go this site

https://tb.rg-adguard.net/public.php

Difference Between UEFI and Legacy Boot like share & subscribe

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How to Clean the WinSxS Folder (like share & subscribe)

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How To Enable "God Mode"

Are you an advanced Windows 10 user who wants access to all your PC's processes? "God mode" can be a great solution. To enable "God Mode" right click on the desktop

> New > Folder. re-name the new folder exactly:

GodMode.{ED7BA470-8E54-465E-825C-99712043E01C}

To easily enter into the "God Mode" window, double-click the folder and enjoy!

Remove Quick Access From Navigation Pane In Windows 10

 A quick registry trick.

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer]

"HubMode"=dword:00000001

How To Enable Gpedit.msc For Windows 10 Home

The good news is that Windows 10 Home Edition includes Group Policy feature on default installation but this feature is disabled by default. You just have to enable the feature to bring back gpedit.msc.

Please note that this is not using any third-party software for enabling the group policy. In this method, the Code is using the built-in Windows packages installation for installing gpedit.msc. So this method should be 100% safe and should work in all conditions.

INSTRUCTIONS:-

1. Open Notepad.

2. Copy the below code into Notepad.

@echo off 

pushd "%~dp0" 

dir /b %SystemRoot%\servicing\Packages\Microsoft-Windows-GroupPolicy-ClientExtensions-Package~3*.mum >List.txt 

dir /b %SystemRoot%\servicing\Packages\Microsoft-Windows-GroupPolicy-ClientTools-Package~3*.mum >>List.txt 

for /f %%i in ('findstr /i . List.txt 2^>nul') do dism /online /norestart /add-package:"%SystemRoot%\servicing\Packages\%%i" 

pause

3. Save this File as anything.bat (while saving, first select the File Type as 'All Files' and then save it as 'anything.bat' i.e. with the .bat extension)

4. Run the .bat file as Administrator and wait for it to complete.

5. After it finishes, Press any key to return to command prompt and exit it.

6. Now, you can open gpedit.msc via Windows+R i.e. Run :)

NOTE: This is only for those who are using Windows 10 Home.

How to Clean the WinSxS Folder

 The WinSxS folder at:

C:\Windows\WinSxS

is huge and will continue to get bigger the more updates have been installed on your system. If you're using a build that updates read on. The WinSxS folder contains old versions and system components. This folder also contains files for uninstalled and or disabled Windows components. Component files elsewhere in Windows are links to files contained in the WinSxS folder. The WinSxS folder contains every operating system file, meaning any updates will increase the size of this folder. What this large folder does is allow you to uninstall updates which can be useful in the case of a bad update, however this feature is sparingly used. First visit the folder:

C:\Windows\WinSxS

If you're using Windows 10 and your folder is clean it should be around 7 gig. Programs like Windows 10 Manager and AusLogics BoostSpeed will clean this folder for you but there are others. Windows Disk Cleanup will do a average job but the easiest way to do it by yourself is in command prompt. To clean the folder it's a good idea to backup your system but it's not required. Note the size of the folder first, then open up an admin command prompt. Copy and paste the following command:

Dism.exe /online /Cleanup-Image /StartComponentCleanup

(hit enter of course)

After the above command runs use this next command (Note: be patient a large folder take time to clean!)

Dism.exe /online /Cleanup-Image /StartComponentCleanup /ResetBase

And then finally the third and final command

Dism.exe /online /Cleanup-Image /SPSuperseded

Note the size of the folder again and see how much space you saved

https://www.chuyu.me/en/index.html

How to view hidden USB files caused by viruses and remove malware

How to view hidden USB files caused by viruses and remove them, without installing any program or AV.














1. Go to start and then go to run, or in this case press on the keyboard, the start button (the one with the microsoft windows logo) and then press it along with the R key.
2. In this box they write CMD
3. Now the console will open, in this first they write the letter of the drive of their USB and colon (e: f: g: h: i:, etc) press Enter key
4. Digitize:

Code:
attrib /s /d -r -h -s *.*
5. Now press the Enter key, now go to Windows Explorer, and you will see the files that were previously hidden, what this command does is show absolutely all the .exe .doc .rar files, etc. as well as subfolders

Delete all suspicious files (*), mainly those with these extensions: .exe, .inf, .lnk, .scr, .dll, for example:

Code:
del autorun.inf del *.exe del *.inf del *.lnk del *.scr del *.dll

Delete the folders and files shown in the images. (*)
In order to delete the "system volume information" folder, use this command in CMD:

Code:
rmdir "system volume information" /s /q


(*) Deleting these files and folders removes the virus

How to create a usb bootable drive

 1.Download Rufus

2.Run Rufus utility, Its portable and hence doesn’t require an installation.

3.Connect your USB flash drive if you have not already.

Set Rufus with the settings below :

Device: select your USB flash drive.

Partition scheme and target system type: select “GPT partition scheme for UEFI computer“

File system : Select file system as FAT32.

Cluster size : select “Default“

Enter a volume label : Enter name for the USB or leave the default name.

Under Format Options, Check “Quick format“.

Check “ create a bootable disk using “. Set it to ISO image and click the CD/DVD drive icon to select the ISO file you want to copy onto the USB drive.

Create UEFI Bootable Windows USB Drive and Click on the Start button and then click on OK to confirm the warning. Rufus will now start creating the bootable UEFI USB flash drive.

laptop motherboard repair tips and tricks

 DEAD MOTHERBOARD

No led indicator at all, no fan moving ,no power .This motherboard require an adapter voltage (12V_15V_16V_18.5V_19V_20V) also 3V and 5V to completely VALW power supply.

without this ADP+ impossible motherboard to a life.

Start by checking dc jack to ensure adapter continuity supply P channel mosfet transistor(adp fet's) end to P channel mosfet transistor for battery fet. This line power is called Main circuit line of VALW power supply. Open schematic (ensure the motherboard model corresponds to and schema).From charger IC page, start your tracing from DC jack to adp P channel mosfet make sure there is continuity from adaptor supply to charger IC.

The most common problem in this section is usually a short circuit or P channel transistor damage. This may  cause over voltage protection while Charger IC may  detect too high voltage on AC_IN(Adaptor current in detector) . If Charger IC detects high  ACIN pin Charger IC will cut of the power by pushing analog to ground on Adaptor current input positive pin to block Adaptor Voltage trough VALW resistive filter.

VALW SHORTED

This may cause adapter led light Blinking or drop ,voltage drop, no current flow(Dead shorted motherboard).

This feed back comes from VALW main power supply line. Check this on schematic by opening Charger IC page and trace any sorted component on VIN and VBAT+ section. Find shorted components by checking all component having Cathode and anode (any components having pin connect to the ground).

To find  shorted components faster use PSU with Soft  voltage regulation ,using this method will make the shorted components become warm and easy to find.

SMPS 3V_5V SYSTEM

Main Voltage coming from VIN (adaptor voltage ) and B+ section when using Battery

DC/DC main supply input power pin call Vin and output pin called LDO, produced auxiliary power to enable S_5 and opening SMPS gate to produce 3V and 5V  supply to the whole circuit.

Measuring point for this 3V_5V system are on the inductors. Some  motherboard using auxiliary power 3V and 5V which comes after pressing power switch. Some architecture has 3V and 5V already present before pressing power switch.

To ensure theese voltages are present after presssing power  switch, check VSB (Voltage sw_Btn), 3V_EC and 3V Bios chip VCC for 3V. If these voltages are not present, ensure EC firmware is ok first before troubleshooting any circuit failure.Ensure RSMRST# signal is present which is usually  3.3V.

NO DISPLAY FAULT

led indicator on, switch on but no internal or external display.There are 3 boot strap device supported to make motherboard load to display if Bios is hundred percent  functional :

1. Processor

Without this motherboard will not display. Power name is VCCORE or CPU Core and enable signal called VR_ON or V_RON as a trigger from Embedded controller (EC) to enable or disable VCCORE IC. Processor need power supply greater than 1.05V but some AMD processor only need power greater than 0.9V.

2.Sodim

Sodim power called VCCRAM. There are 2 power need to make sodim working ,1.5V and 0.75VTT for DDRIII and 1.8V_0,9VTT for DDRII. Get the schematic and find VCCRAM/VTT measuring point to ensure sodim powered well.

3.Bga Chips(SB/NB/VGA)

Chip Power called VCCP. There are very complex power supply system. Chip need 19VALW-5/3VALW-5/3VS-1.2VS-1.05VS.Chip also have their own RAM and need power supply to work Find measuring point on chip by opening chip page on schematic or by checking Voltage rail for specific motherboard.If signal is ok , chip will release PWRGOOD which is  3.3V with tolerance of 10%.

POWER DROP

Led Indicator on ,switching on, Running for few second after that back off.

This symptom happen because of over heat (Thermal Protection), power spike or shortage on VS line.

Processor and Chip are most which can cause power spike, look at VCORE and VCCP circuit line ,circuit has provide stockpile empty pad to add some more capacitor to anticipate power spike during boot up process

How to burn mac os into usb flash drive

 Installing mac os to macbook is really not a hard nut to crack as most people presume, mac books are unique laptops with special features which gives the user a high prestige when in use

Reasons for installing mac os x can be as a result of a corrupted os or an os upgrade in order to enjoy much more nice features.

The various versions of mac os are listed as follows: macOS Catalina, mac OS Mojave, mac OS High Sierra, mac OS Sierra, OS X El Capitan download, OS X Yosemite, OS X Mavericks, OS X ,Mountain Lion , OS X Lion

Steps

Download latest and older versions of mac os using the link below

https://support.apple.com/downloads

After downloading the file,it comes in .dmg format, use either rufus or power iso to burn the file into a flash drive by converting the flash to a bootable usb

How to Share Files Wirelessly Between Windows 10 and Your Samsung Phone

 This feature for the mean time is only available for Windows 10 Insiders, but will be available soon on other windows version. Similarly, wireless file transfers only work on Samsung devices that can run the “Link to Windows” app version 1.5 or higher.

Currently only 100 files can be transferred, each file must be 512MB or less; and both devices must be connected to the same wifi network in order for the process to work perfectly.

When the above requirement are met then you can share files between your PC and Samsung smartphone.

Procedure

Make sure your smartphone and PC are connected to the same wireless network, then follow these instructions to pair your devices.

Open the “Link to Windows” app on your phone and make sure the Link to Windows option is turned on.

 

To send files from your Samsung phone to your PC

Use “My Files” or “Gallery” to find the file(s) on your phone that you want to send.

Long-press a file until a check mark appears, and then select any other files you wish to transfer.

Long-press again, then drag the files to your desired location on your PC.

Wait for the transfers to complete.

Send files from your Windows PC to your Samsung phone

Open the “Your Phone” app on your PC.

Drag and drop the file(s) to the “Your Phone” windows.

Wait for the files to transfer. Note: closing or minimizing “Your Phone” before the files have been copied over will stop the transfer.

Transferred files are sent to your phone’s “Downloads” folder.

Hp caps lock blinking error codes

 These faults can be detected  by counting the number of beeps or blinks at different areas of the laptop like battery power LED, Caps lock, Num lock or Ac power adapter LED. All you have to do is to count the number of beeps and detect the fault. 

If you find continuous blinking at the battery power LED then there will be the fault in battery. The reason of fault is the AC adapter is attached and the battery is charging, but does not yet have sufficient charge to power the notebook.

One beep or blink at the Caps or Num lock indicates the fault in CPU. The reason for this can be is that CPU is not functioning.

Two beeps or blinks at the Caps or Num lock tells that the there is the fault of BIOS. This can be due to of BIOS corruption.

Three beeps or blinks at the Caps or Num lock shows the fault in memory. The reason for this fault is that module error is not functional.

Four beeps or blinks at the same Caps or Num lock signifies the fault in graphics. This can be caused by non functioning of graphic controller.

Five beeps at Caps or Num lock indicate the fault in the system board. The failure of the general system board cause this.

Six blinks or beeps at Caps or Num lock tells the fault in BIOS due to the BIOS authentication failure.

If you are encountering with continuous beeps or blinking in Ac power adapter LED than there will be fault in the power adapter. This can be due to the insufficient power supply.

When caps lock and num lock blinks simultaneously, means Pch chip is faulty. 

How to Download WIndows 10 from Chrome

how to disable windows 10 updates simple trick

How to Download WIndows 10 from Chrome

 How to Download WIndows 10 from Chrome

https://www.youtube.com/watch?v=sPJjmFNwuCI

Laptop Power Sequence

In the absence of any power supply (no battery and adapter) system is powered by 3V Battery to CMOS circuits to create VCCRTC which provide power to Southbridge RTC circuit to maintain internal communication time.

CMOS levels measured on RTC circuit with signals VCCRTC-DCPRTC # / RTCRST # / SRTCRST #. 3v source voltage is apply to 32.768KHz RTC Circuit of South bridge chip to save time system.

The battery or power adapter apply to system which is usually above 10.8v normally 19V DC on adapter and 10.8v-14.8v on battery is generated V+ or main B+ by two mosfet through system operated by charging ic

When adapter and battery creates a common supply at B+ , standby ic (ie 51125 ,max8734 hold 3.3v and 5v supply system) genrate 3.3v always to EC(kbc ic) (typically 3.3V power supply linear current 0.08A known as standby power).

Standby voltage supply EC (AVCC / VCC0 3.3v) and CMOS RTC source (32.768kHz 3.3V RTCVCC) and reset voltage (3.3V EC_RST # / ECRST # / WRST # / VCC_POR / VCC1_RST #) after read (BIOS) programming (oscillators can measure the waveform) system is ready to boot state.

If EC detect power adapter (charger IC good signal conversion ACOK ACIN / AD_IN / AC_IN / RI2 / WUI1 / GPD1 / ACAV_IN), will automatically send a signal to power standby ic to launch standby voltage (VCCSUS3_3, V5REF_SUS), and then EC signal sent to South chip called "RSMRST #" (3.3V).

Note:If South standby voltages are normal and no ACOK signal EC that's mean system on battery mode no ac adapter detected , then EC should receive signal from on/off switch to generate ,this is only to save electricity current from 0.02 to 0.03.

When you press the switch ON / OFF, EC received signal from switch (connected to the EC name GPIO03 / GPIO06 PWUREQ # / GPC7 / PWR_SW # - ASUS / TMRI0 / WUI2 / GPC4 / EC_GPXIOD3 / KBC_PWRBTN #) to send one High signal - PWRBTN to Southbridge control switch (COVER_SW # / LID_SW #).

When southbridge get PWRBTN # signal it sends signals SLP_S5 EC #, SLP_S4 #, # SLP_S3, SLP_S5 / S4 # conducted using the following feeds: (1)3.3VSUS(2)open source EC RAM (DDR1 0.05A 2.5 1.5V 1.8V DDR2 DDR3 V)(3) SLP_S3 # open source level after 3.3V_RUN, + 5_RUN,(4) south bridge power supply (1.5 V) bus-powered(5) (VCCP) 0.2A-0.3A 1.05V) graphics card offers Power(6)(0.5-0.7A 1.2V) VGA source VGPU_CORE

When above Voltages genrated EC Received signal OK EC, then EC circuit to switch to open the CPU voltage (VCORE) to line up with the current 0.6A that have the CPU power, (can see lines around 0.3-0.5A). At this point, the entire voltage has been opened completely.

After the power supply is normal, EC release VR_ON VRM to CPU management chip to enable CPU_VCORE ,CPU power management chip detect good Vcore Voltage Level its genrate VRMPWRGD / SYS_PWROK / MEPWROK about 3.3V CPU good signal to PM and SB (HM for i series).

PM and SB generate CK_PWRGD(CL_PWRGD) to the CPU power management chip which is simultaneously combined with the signal from the circuit CLK_EN which allows Clock HD generation( pulse CLOCK_GEN is for 945 or less and for the HM55 Series # CLK_EN).

After sucessful clock genration EC gerate PM_PWROK (SB_PWROK 3.3V) south brige or HM, southbridge will signal (CPUPWRGD / PROCPWRGD / DRAMPWROK about 1.05V) cpu section.NOTE: the CPU voltage opened successfully, and also signaling system startup PLTRST # (3.3V) and PCIRST # (3.3V)

Northbridge Chip after getting PLTRST #, # CPURST signal (1.05V 0.7A) to the CPU, the CPU begins work boot completion.

CPU start solving ADS #, read and retrieve data from BIOS.

Initialize the memory stream consumes about 0.7-0.8A

Initialize the graphics line 0.9-1.1A consumption

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Peripheral display

Computer power supply voltages:Power on voltages

In order for the laptop to switch on, there must exist first these two voltages: 3VALW and 5VALW.Be caredul when finding 5VALW, press power button first, because for several motherboard, 5VALW usually appear after pressing power button.

                                       

Than 3V_ALW or 3VPCU provide power supply to the EC , BIOS IC , South Bridge ( SB ) , clock generator and oscylator on ALW voltage .

USB or switch voltage button (3.3V) will appear after Bios and EC powered. some of laptop motherboard will found 17V switch voltage on one of pin switch button but after switch -on voltage is changed to be 3.3 V.This is normal.

Press power button ( short to ground ) then 3.3VSB will turn into 0V and back to 3.3V.After this, signal being sent to the EC ( Embedded controller NPCE 885LAODX ) signal names is NBSWON with other brands of EC signal name which may be SW_ON, EC_ON or whatever name of the signal as long as signal coming from SW1 sent to EC , this voltage must respond in the same manner of testing power button , BIOS IC and firmware connected to SPI interface to the EC .

Signal confirmation to ensure EC BIOS working properly is RSMRST for3.3V.RSMRST# signal which sometimes appear after switching on power button.Modern Motherboard has 2 or 3 IC BIOS. Identified EC BIOS which is usually on schema with name EC BIOS.

Other important signal from EC is DNBSWON # ,this is PWR_BTN signal to switch on South bridge sent by the EC after receiving NBSWON # signal from power button.

DNBSWON 3.3V must be present otherwise it would not switch on , after this signal appears then the SB will sent SUSCLK signal back to the EC and turn on VS as trigger for all switching gate driver as VR_ON , Suson , MAINON , S5_ON or SLP_S3 , SLP_S4 and SLP_S5 . and for all the Vs voltage to the Device .

Hp caps lock blinking error codes

These faults can be detected by counting the number of beeps or blinks at different areas of the laptop like battery power LED, Caps lock, Num lock or Ac power adapter LED. All you have to do is to count the number of beeps and detect the fault.

If you find continuous blinking at the battery power LED then there will be the fault in battery. The reason of fault is the AC adapter is attached and the battery is charging, but does not yet have sufficient charge to power the notebook.



One beep or blink at the Caps or Num lock indicates the fault in CPU. The reason for this can be is that CPU is not functioning.

Two beeps or blinks at the Caps or Num lock tells that the there is the fault of BIOS. This can be due to of BIOS corruption.

Three beeps or blinks at the Caps or Num lock shows the fault in memory. The reason for this fault is that module error is not functional.

Four beeps or blinks at the same Caps or Num lock signifies the fault in graphics. This can be caused by non functioning of graphic controller.

Five beeps at Caps or Num lock indicate the fault in the system board. The failure of the general system board cause this.

Six blinks or beeps at Caps or Num lock tells the fault in BIOS due to the BIOS authentication failure.

If you are encountering with continuous beeps or blinking in Ac power adapter LED than there will be fault in the power adapter. This can be due to the insufficient power supply.

When caps lock and num lock blinks simultaneously, means Pch chip is faulty.