Tip & How-To about Computers & Internet

How to isolate issues between hardware and software

It has been one of the dilemma of computer users is to identify what is really causing the failure in their computer. Often they think that they bought a defective product since they are getting these kind of errors in the computer. Having an error on your machine does not mean that the machine is defective or needs parts replacement. for all we know it might just need some simple troubleshooting steps to fix the issue. Here is a tip where you would be able to know if you need to bring your computer to a service shop for parts replacement or you can try to fix it at home by doing some troubleshooting steps that would help fix software failure in the computer system.

On a Windows based operating system, you should always know when the issue happens. It will help much to observe your computer on how it boots up and what it does before you get to the desktop screen. Take a note on where and when exactly the error occurs.

Power Failure:

This is an issue where there are no lights on the power button of your computer, whether it is a portable system or a desktop computer. Obviously this is a hardware failure. surprisingly, discharging the flea power of your computer sometimes resolves these kinds of issues. Otherwise, you will definitely need to have a local technician look at your system for parts replacement.

Note: flea power is the charged power of our computer system. A computer system is made up of electronic components such as capacitors which hold electronic charges. To be able to discharge it, you should disconnect all power source from your computer and hold the power button for at least 5 seconds.


POST Failure:

POST is an abbreviation for Power On Self Test. as the name implies, it is the test that a system goes through to test the basic hardware components needed for a computer to boot. The components that it tests are as follows: Processor, BIOS (Motherboard), Memory, keyboard and video card. If there is a POST failure, the system would give you a black screen with lights on the front panel. Sometimes it will give you beeping sounds which would normally mean that you have a memory failure on your system. If you encounter such issue, you will need hardware technical support to guide you isolate further on what could be causing the failure.

Boot Failure:

Boot failure is when the computer is able to complete post. You will be able to know this if you hear a single beep on your computer. Isolating a boot failure from a post failure simply requires you to boot to the System Setup/configuration Screen (BIOS). If you are able to get to the BIOS, that means all the POST hardware component are good to go. However, booting to the BIOS differs per system. You just need to do trial and error on the following keys to tap as you turn your computer on.

Del
F1
F2
F10
F9
ESC

To isolate an issue whether it is a software or a hardware issue, you just need to boot from the BIOS. If you are able to boot from the BIOS, chances are it is not a hardware failure and needs servicing.



If booting to the BIOS works, to further isolate the issue whether it is the advanced software, you need to boot to Safe mode. Safe mode is a troubleshooting state where only the basic applications and drivers are active. If you are having errors or boot failure, try to boot to Safe Mode. If you do not encounter the failure in Safe Mode, that means that there are advanced software being loaded in your operating system that fails. It is just a matter of knowing what that software is.

Booting to Safe Mode:

1. turn computer on and tap on F8 before Windows starts.
2. You will be getting the Advanced Boot options. Use the arrow keys to get to the option for Safe Mode.




Safe Mode Definitions:

Safe Mode: Just basic software are being loaded. Network drivers are not included which means no internet connection

Safe Mode with Networking: Basic software and Network drivers are being loaded.

note: for Vista or Windows 7, it includes wireless network drivers. This means that you can still connect to the internet with a wireless connection. In Windows XP, the wireless driver is not included even if you boot to Safe Mode with Networking

Safe Mode with Command prompt: this is a troubleshooting state where you will be able to utilize DOS based commands.

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error message 0xc000021a


Winlogon.exe
Winlogon.exe is a part of Windows Login System. As suggested by its name, this process is responsible for handling login and logout procedures on your computer. Primarily though, it is concerned with the following functions:
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  • Locking the system while Screen Saver is activated
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Csrss.exe
Csrss.exe is a user-mode program belonging to the Microsoft Client/Server Runtime Server Subsystem. It is a critical piece of software responsible for managing threads and creating console windows. Furthermore, it is also thrown the crucial duty of controlling operations of the Win32 subsystem not belonging to the kernel mode.
A STOP 0xC000021A message is generated when either of these processes fails to execute. Upon detecting this bizarre dilemma, Windows NT kernel halts the system and raises the BSOD error. Following is a list of common causes leading to the failure:
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  • Incompatible third-party software has been added
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Jul 20, 2014 | Gateway NE56R10u Laptop Intel Celeron...

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college paper


I think there is no any point you should get dilemma in the college paper writing service after all you can contact directly with the powered essay for the college paper. They are well known for the writing the college paper. So, clear your dilemma with the powered essay.
http://www.poweredessays.com/custom-essay

Dec 19, 2013 | Computers & Internet

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6 beeps what dose it means


Dell beep codes:

If your computer beeps during start-up:
Run Dell Diagnostics to identify a more serious cause.

Beep Codes Your computer might emit a series of beeps during start-up if the monitor cannot display errors or problems. This series of beeps, called a beep code, identifies a problem. One possible beep code (code 1-3-1) consists of one beep, a burst of three beeps, and then one beep. This beep code tells you that the computer encountered a memory problem.
If your computer beeps during start-up:
Dell Diagnostics to identify a more serious cause.

Contact Dell for technical assistance.




Code Cause 1-1-2 Microprocessor register failure 1-1-3 NVRAM read/write failure 1-1-4 ROM BIOS checksum failure 1-2-1 Programmable interval timer failure 1-2-2 DMA initialization failure 1-2-3 DMA page register read/write failure 1-3 Video Memory test failure 1-3-1 through 2-4-4 Memory not being properly identified or used 3-1-1 Slave DMA register failure 3-1-2 Master DMA register failure 3-1-3 Master interrupt mask register failure 3-1-4 Slave interrupt mask register failure 3-2-2 Interrupt vector loading failure 3-2-4 Keyboard Controller test failure 3-3-1 NVRAM power loss 3-3-2 Invalid NVRAM configuration 3-3-4 Video Memory test failure 3-4-1 Screen initialization failure 3-4-2 Screen retrace failure 3-4-3 Search for video ROM failure 4-2-1 No timer tick 4-2-2 Shutdown failure 4-2-3 Gate A20 failure 4-2-4 Unexpected interrupt in protected mode 4-3-1 Memory failure above address 0FFFFh 4-3-3 Timer-chip counter 2 failure 4-3-4 Time-of-day clock stopped 4-4-1 Serial or parallel port test failure 4-4-2 Failure to decompress code to shadowed memory 4-4-3 Math-coprocessor test failure 4-4-4 Cache test failure

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I have 2 GX520's that are buzzing when trying to boot


If your computer beeps during start-up:
  1. Write down the beep code
Code
Cause
1-1-2
Microprocessor register failure
1-1-3
NVRAM read/write failure
1-1-4
ROM BIOS checksum failure
1-2-1
Programmable interval timer failure
1-2-2
DMA initialization failure
1-2-3
DMA page register read/write failure
1-3
Video Memory test failure
1-3-1 through 2-4-4
Memory not being properly identified or used
3-1-1
Slave DMA register failure
3-1-2
Master DMA register failure
3-1-3
Master interrupt mask register failure
3-1-4
Slave interrupt mask register failure
3-2-2
Interrupt vector loading failure
3-2-4
Keyboard Controller test failure
3-3-1
NVRAM power loss
3-3-2
Invalid NVRAM configuration
3-3-4
Video Memory test failure
3-4-1
Screen initialization failure
3-4-2
Screen retrace failure
3-4-3
Search for video ROM failure
4-2-1
No timer tick
4-2-2
Shutdown failure
4-2-3
Gate A20 failure
4-2-4
Unexpected interrupt in protected mode
4-3-1
Memory failure above address 0FFFFh
4-3-3
Timer-chip counter 2 failure
4-3-4
Time-of-day clock stopped
4-4-1
Serial or parallel port test failure
4-4-2
Failure to decompress code to shadowed memory
4-4-3
Math-coprocessor test failure
4-4-4
Cache test failure

Apr 11, 2009 | Dell OptiPlex GX520 PC Desktop

3 Answers

admin. password.


Its not ADMIN PASSWORD

It's Bios password!

And i can remove it but it will cost 200$

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