Computer POST and beep codes

POST ABCs

The computer power-on self-test (POST) tests the computer to make sure it meets the necessary system requirements and that all hardware is working properly before starting the remainder of the boot process. If the computer passes the POST the computer will have a single beep (with some computer BIOS manufacturers it may beep twice) as the computer starts and the computer will continue to start normally. However, if the computer fails the POST, the computer will either not beep at all or will generate a beep code, which tells the user the source of the problem.

If you're receiving an irregular POST or a beep code not mentioned below follow the POST troubleshooting steps to determine the failing hardware component.

• Additional information on the POST and how a computer works?

AMI BIOS beep codes

Below are the AMI BIOS Beep codes that can occur. However, because of the wide variety of different computer manufacturers with this BIOS, the beep codes may vary.

Beep Code	Descriptions
1 short	DRAM refresh failure
2 short	Parity circuit failure
3 short	Base 64K RAM failure
4 short	System timer failure
5 short	Process failure
6 short	Keyboard controller Gate A20 error
7 short	Virtual mode exception error
8 short	Display memory Read/Write test failure
9 short	ROM BIOS checksum failure
10 short	CMOS shutdown Read/Write error
11 short	Cache Memory error
1 long, 3 short	Conventional/Extended memory failure
1 long, 8 short	Display/Retrace test failed

AWARD BIOS beep codes

Below are Award BIOS Beep codes that can occur. However, because of the wide variety of different computer manufacturers with this BIOS, the beep codes may vary.

Beep Code	Description
1 long, 2 short	Indicates a video error has occurred and the BIOS cannot initialize the video screen to display any additional information
Any other beep(s)	RAM problem.

If any other correctable hardware issues, the BIOS will display a message.

IBM BIOS beep codes

Below are general IBM BIOS Beep codes that can occur. However, because of the wide variety of models shipping with this BIOS, the beep codes may vary.

Beep Code	Description
No Beeps	No Power, Loose Card, or Short.
1 Short Beep	Normal POST, computer is ok.
2 Short Beep	POST error, review screen for error code.
Continuous Beep	No Power, Loose Card, or Short.
Repeating Short Beep	No Power, Loose Card, or Short.
One Long and one Short Beep	Motherboard issue.
One Long and Two Short Beeps	Video (Mono/CGA Display Circuitry) issue.
One Long and Three Short Beeps.	Video (EGA) Display Circuitry.
Three Long Beeps	Keyboard / Keyboard card error.
One Beep, Blank or Incorrect Display	Video Display Circuitry.

Macintosh startup tones

Tones	Error
Error Tone. (two sets of different tones)	Problem with logic board or SCSI bus.
Startup tone, drive spins, no video	Problem with video controller.
Powers on, no tone.	Logic board problem.
High Tone, four higher tones.	Problem with SIMM.

Phoenix BIOS beep codes

Below are the beep codes for Phoenix BIOS Q3.07 OR 4.X

Beep Code	Description / What to Check
1-1-1-3	Verify Real Mode.
1-1-2-1	Get CPU type.
1-1-2-3	Initialize system hardware.
1-1-3-1	Initialize chipset registers with initial POST values.
1-1-3-2	Set in POST flag.
1-1-3-3	Initialize CPU registers.
1-1-4-1	Initialize cache to initial POST values.
1-1-4-3	Initialize I/O.
1-2-1-1	Initialize Power Management.
1-2-1-2	Load alternate registers with initial POST values.
1-2-1-3	Jump to UserPatch0.
1-2-2-1	Initialize keyboard controller.
1-2-2-3	BIOS ROM checksum.
1-2-3-1	8254 timer initialization.
1-2-3-3	8237 DMA controller initialization.
1-2-4-1	Reset Programmable Interrupt Controller.
1-3-1-1	Test DRAM refresh.
1-3-1-3	Test 8742 Keyboard Controller.
1-3-2-1	Set ES segment to register to 4 GB.
1-3-3-1	28 Autosize DRAM.
1-3-3-3	Clear 512K base RAM.
1-3-4-1	Test 512 base address lines.
1-3-4-3	Test 512K base memory.
1-4-1-3	Test CPU bus-clock frequency.
1-4-2-4	Reinitialize the chipset.
1-4-3-1	Shadow system BIOS ROM.
1-4-3-2	Reinitialize the cache.
1-4-3-3	Autosize cache.
1-4-4-1	Configure advanced chipset registers.
1-4-4-2	Load alternate registers with CMOS values.
2-1-1-1	Set Initial CPU speed.
2-1-1-3	Initialize interrupt vectors.
2-1-2-1	Initialize BIOS interrupts.
2-1-2-3	Check ROM copyright notice.
2-1-2-4	Initialize manager for PCI Options ROMs.
2-1-3-1	Check video configuration against CMOS.
2-1-3-2	Initialize PCI bus and devices.
2-1-3-3	Initialize all video adapters in system.
2-1-4-1	Shadow video BIOS ROM.
2-1-4-3	Display copyright notice.
2-2-1-1	Display CPU type and speed.
2-2-1-3	Test keyboard.
2-2-2-1	Set key click if enabled.
2-2-2-3	56 Enable keyboard.
2-2-3-1	Test for unexpected interrupts.
2-2-3-3	Display prompt Press F2 to enter SETUP.
2-2-4-1	Test RAM between 512 and 640k.
2-3-1-1	Test expanded memory.
2-3-1-3	Test extended memory address lines.
2-3-2-1	Jump to UserPatch1.
2-3-2-3	Configure advanced cache registers.
2-3-3-1	Enable external and CPU caches.
2-3-3-3	Display external cache size.
2-3-4-1	Display shadow message.
2-3-4-3	Display non-disposable segments.
2-4-1-1	Display error messages.
2-4-1-3	Check for configuration errors.
2-4-2-1	Test real-time clock.
2-4-2-3	Check for keyboard errors
2-4-4-1	Set up hardware interrupts vectors.
2-4-4-3	Test coprocessor if present.
3-1-1-1	Disable onboard I/O ports.
3-1-1-3	Detect and install external RS232 ports.
3-1-2-1	Detect and install external parallel ports.
3-1-2-3	Re-initialize onboard I/O ports.
3-1-3-1	Initialize BIOS Data Area.
3-1-3-3	Initialize Extended BIOS Data Area.
3-1-4-1	Initialize floppy controller.
3-2-1-1	Initialize hard-disk controller.
3-2-1-2	Initialize local-bus hard-disk controller.
3-2-1-3	Jump to UserPatch2.
3-2-2-1	Disable A20 address line.
3-2-2-3	Clear huge ES segment register.
3-2-3-1	Search for option ROMs.
3-2-3-3	Shadow option ROMs.
3-2-4-1	Set up Power Management.
3-2-4-3	Enable hardware interrupts.
3-3-1-1	Set time of day.
3-3-1-3	Check key lock.
3-3-3-1	Erase F2 prompt.
3-3-3-3	Scan for F2 key stroke.
3-3-4-1	Enter SETUP.
3-3-4-3	Clear in-POST flag.
3-4-1-1	Check for errors
3-4-1-3	POST done--prepare to boot operating system.
3-4-2-1	One beep.
3-4-2-3	Check password (optional).
3-4-3-1	Clear global descriptor table.
3-4-4-1	Clear parity checkers.
3-4-4-3	Clear screen (optional).
3-4-4-4	Check virus and backup reminders.
4-1-1-1	Try to boot with INT 19.
4-2-1-1	Interrupt handler error.
4-2-1-3	Unknown interrupt error.
4-2-2-1	Pending interrupt error.
4-2-2-3	Initialize option ROM error.
4-2-3-1	Shutdown error.
4-2-3-3	Extended Block Move.
4-2-4-1	Shutdown 10 error.
4-3-1-3	Initialize the chipset.
4-3-1-4	Initialize refresh counter.
4-3-2-1	Check for Forced Flash.
4-3-2-2	Check HW status of ROM.
4-3-2-3	BIOS ROM is OK.
4-3-2-4	Do a complete RAM test.
4-3-3-1	Do OEM initialization.
4-3-3-2	Initialize interrupt controller.
4-3-3-3	Read in bootstrap code.
4-3-3-4	Initialize all vectors.
4-3-4-1	Boot the Flash program.
4-3-4-2	Initialize the boot device.
4-3-4-3	Boot code was read OK.

How to make windows 7 genuine

1.Download program & extract Here!
2.Run it as administrator
3.choose your motherboard
4.click install7 loader
5.after install reboot your PC/laptop
6.when computer reboot it will be activated automatically
7.to check it open start menu right click on computer properties

SCREEN SHOt
before




finish product

credit by: daz

Microsoft's Windows 98 SE - CD Install on Blank Hard Drive

Microsoft's Windows 98 SE - CD Install on Blank Hard 

Drive

INTRODUCTION

What you will require to do this walkthrough is 

1. A Windows 98 CD
2. A Computer with CD-ROM access

To start this Windows install. First check that the first boot device in your system BIOS is set to the  CD-ROM Drive.

( To find out how to access the BIOS please refer to your motherboard manual or the manufacturer of your computer. (The system bios can usually be entered on boot, usually by pressing the F1, F2, F8, F10 or DEL key. Make sure you save the settings before exiting))

If you are unsure or don't want to enter the BIOS then just test the computer by putting the CD-ROM in the drive and rebooting the computer. This is the recommended way to install windows.

You will know that your computer will/has booted of CD-ROM when the following screen appears.

  

PART 1

 

To begin the Windows 98 install select Option 2 (Boot from CD-Rom)

The following screen will appear next. Select Option 1. (Start Windows 98 Setup from CD-ROM)

Your CD-ROM driver will now install, be patient this may take a few moments.

Now press Enter to continue, or F3 to exit.

Setup will now perform checks on your system, press Enter to continue.

Next Scandisk will run, let this complete or setup.

Now setup will copy important files for the install.

 

PART 2

Setup has now begun, the mouse should now be active, press Continue to proceed. If you have a change of mind then press Exit Setup. If the mouse is not active press "ENTER" on the keyboard.

The wizard will now start. Be patient this may take a few moments.

Now select the directory you wish to install Windows into. By default C:\Windows will be selected. You can change this, but it is not advised. Click on Next to Continue.

Setup will now prepare the directory, be patient this may take a moment.

Setup now checks disk space. 

What do you wish to install. We recommend Typical, which is the default. So click Next to continue.

Windows Components to be installed will now be listed. Leave at default and press Next.

If a Network card has been detected the following will appear. Fill in the details and click Next.

Now your country settings, select as needed and then press Next.

Windows will now copy files, this will take sometime. Be patient

PART 3

After sometime you will be prompted to restart, Windows will do it itself, you can click on Restart Now to quicken the process.

The CD-ROM boot menu will appear. Select option 1 (Boot from Hard Disk)

Booting for first time screen will appear.

Now enter your name, company is optional. Click on Next to continue.

Now the License Agreement. Read and if you agree click on "I accept the Agreement" and click next. If you select ""I don't accept the Agreement" then setup will end. 

Now input your product key or certificate authenticity code. This is 16 digits and is located on the back of your CD case or on the Windows 98 Book. If you have an OEM computer then it could be on the side or back of your computer. Click next to continue. 

Next click on Finish.

PART 4

Setup will now finalize the hardware and install settings.

Plug and Play Devices.....

Your computer will prompt to restart....

The CD boot menu will appear. Select option 1 (Boot from Hard Disk) and press enter.

Windows is booting.

and continuing the install of devices. 

PART 5

Now select your date/time settings, using the down arrow beside GMT -0800.

Once selected click on apply and then OK.

Windows will continue to setup Windows items.

The computer will now need restarted again.

PART 6

The CD-ROM boot menu will appear. Select Option 1 (Boot from Hard Disk) and press enter.

Windows will continue to load.

and update System Settings.

At long last you have arrived at the desktop. 

If you are lucky you will have no drivers to install, but chances are the next step will be to install them. Check out device manager for unknown devices, likely items are Network Cards, Sound Cards, Printers, Scanners, Graphics Cards, Digital Cameras, plus  any other item you have.