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Re: fan error during boot-up
Power supply, that can be the cause.
Did you try disconnecting few devices to check if the CPU fan has enough power to turn itself on. Usually motherboard will have two connectors for the CPU fan, you may try connecting it directly to the power supply.
Also Check through the BIOS and see if there is a setting to disable the CPU Fan monitor (Hardware Monitor??) It should be where the temps and voltages are.
The BIOS in most computers has an option to monitor a CPU fan. If none exists, then the option needs to be disabled. I am assuming the error is occuring during the BIOS stage of bootup.
If the error occurs in Windows, it may be that some software has been installed to monitor a fan that doesn't exist. Sometimes monitoring software comes on the motherboard CD and someone may install it, thinking it is a driver. It is not necessary.
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Are there any sets of audio 'beeps' that occur during startup? If you get anything other than a single beep during startup, it could indicate an error code for hardware failure detected during the POST phase of bootup.
If you have recovery or Windows installation CD's, try pressing F12, go to the bootup menu and try booting from the CD.
Look at the bootup menu and see if there is a hard drive as one of the options. If the hard drive is not there, or if you try to boot from the hard drive from that menu and you get error messages, that might indicate something wrong with the hard drive.
If you can boot from the CD, you may be able to use the Windows Recovery Manager to restore Windows on your hard drive, if the hard drive is working. There may also be a recovery partition on the drive that will allow you to recover Windows, but beware that files on the hard drive may be lost when you use the recovery partition.
If you have files on the hard drive you need to recover, you may be able to remove the hard drive, put it on an USB drive adapter, and use another PC to copy files off of the old drive, even if it cannot boot the old computer. After you have recovered your files, you can try the recovery partition or format the drive and use Windows install disks to restore Windows to the drive.
Lots of fans are variable speed. Meaning they spin faster when the computer is hot and slow down when not. It's most likely spinning down. If the fan was bad the computer will either shutdown or generate an error during BIOS and halt the boot process.
The long buzzing sound indicate the nature of the problem. Depending on the manufacture of your bios will determine the problem. With only one long beep you may have memory problem. The computer cannot initiate the boot sequence. Did you add any devices to the computer prior to your problem. if you did undo what you did. Make sure the computer is on, if nothing happens ( no lights, no sound, no fans etc.) the computer has a power failure. Make sure you listen to the beep if it is a numerous beep sequence note it down and check the web for computer beep during boot up.
When you press the Power button to start the boot process, the LED lights glow while the computer verifies that there is sufficient electrical power to activate the hardware.
& Solution: When you press the power button, the LED lights on the
computer do not glow or the LEDs blink briefly and then stop. There is
no sound of the fan or hard drive spinning, and the screen remains
blank. The computer will not start if there is insufficient battery or AC adapter power.
The BIOS queries various hardware components used for the startup boot process.
& Solution: When you press the power button, the LEDs glow but
there is no fan or hard drive sound. The LEDs may glow briefly and then
The LED lights blink, stop, and then blink a
second or third time, but there is no sound from the computer and the
screen remains blank. The sequence of the blinking lights indicates a
specific error code.
A series of beeping tones is heard. The sequence of beeping tones indicate a specific error code.
a hardware component has recently been replaced, or if the PC has been
jarred or shaken, there may be a loose connection to the memory chips
or hard drive which prevents the computer from starting.
The BIOS loads the basic input (keyboard) and output (advanced LEDs / display screen / boot drives) devices into memory.
& Solution: When you press the power button, the LEDs glow, the fan
or hard drive sounds, are heard, but then the boot process stops and a
black screen - with an error message - displays.
The boot check has detected a communication error or conflict with a hardware component that must be corrected.
The BIOS loads the Windows operating system and starts the services
that allow low-level control of all of the background operations.
& Solution: When you press the power button, the LEDs glow, the fan
or hard drive sounds, are heard, the HP or Compaq Logo displays on a
black screen, but then the boot process stops and a blue screen - with
an error message - displays.
The boot check has detected a hardware driver error or a software conflict that must be corrected.
Control is transferred to the Windows loader to initiate the display of the advanced settings in the Windows environment.
The Windows logo displays during this step.
& Solution: When you press the power button, the computer performs
all the steps in the boot process, but after the Windows Logo displays,
the moving Windows progress bar or the rotating cursor stops moving and
the boot process stops.
An error message may display on a screen with the Windows logo. In some instances, there is no specific error message.
A black screen appears and the computer attempts to restart.
The Windows self-check has detected a software conflict that must be corrected.
Try this remove side cover and boot computer listen for any extra noise fan etc. also by power supply As I think you have a bad bearing in a fan To temp fix it remove paper cover over center of fan and put a small and I mean small drop of light machine oil on bearing then replace paper cover. check if this stops the noise if it does you know which fan to replace. If it is power supply fan and if you think yourself capable remove fan and do the same to it
Are you talking about the original fan being good or the replacement? If it's the original, then your problem may lie with the processor or mainboard. Try the download first, you will need to access another computer to make a bootable disc for the download to clear it. I believe with IBM you can make a bootable floppy or CD. If you have a floppy for your machine, some don't. Once you've made the disc or floppy, you will need to enter the boot menu, and boot from the proper drive. I'm out for the night, but I'll be back in the morning. Let me know.