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Case fan rpm problem, error msg on boot up

The BIOS doesn't recognize the case fan, it is running, but in the BIOS it show's 0 rpm. This causes and error msg. on boot up. I have no motherboard layout map. Any ideas, Rick

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Please try to replace the fan and after replacing it, reset the bios.
another way is to change the position of the fan's power source.

Posted on May 20, 2009

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This is not that unusual, I have an HP with the same sensor error on it's PS fan. Generally you can disable the warning if you know the fan is working by going into BIOS and poking around.

If this is not an option in your BIOS, you can try simply replacing the effected fan as it is difficult to test which has failed, the motherboard sensor or the sensor in the fan.

When you replace the fan $10, it will either continue on it's way or give you the error, if it still gives the error, comment back with the make and model of the board and we'll see what else we can do for you.


Hope this helps FixYa,

Chris

Posted on May 20, 2009

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Hi there.
Look on the motherboard for a three pin white plug (header) next to its should be marked system fan it looks like this >>>>
Case fan rpm problem, error msg on boot up - 7394a78.jpeg
Plug the fan connector into this check the bios again.

Please post back with the results and more help if needed, good luck and thanks for using FixYa!!

Posted on May 20, 2009

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Posted on Jan 02, 2017

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New case fan running but still getting error message system fan failed.


Did you try;

Power off, power unplugged to computer.
Press the Power On button, and hold it in. Hold for a count of 10 seconds.
Let go.

Do this procedure two more times.

Plug the computer back into power. WAIT 1 minute, turn the computer on.

This method clears CMOS Error Codes, and sets BIOS Setup back to the factory default settings.

http://h10025.www1.hp.com/ewfrf/wc/document?docname=c00864946&tmp_task=prodinfoCategory&cc=us&dlc=en&lang=en&lc=en&product=3340228#N436

CPU fan spinning at required minimum RPM's?

Not talking about the SYS_FAN (Case fan)



Regards,
joecoolvette

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Processor thermal treat error while booting


Make sure that cpu fans are running normally. Go to BIOS (generally with F2 on intel motherboards), and there will be information about cpu temperature, also fan speed (in RPM). If fan speed is 0 or very low problem is in cpu fan. (connection problem might be). If cpu fan speed is normal (high value) and cpu temperature is high, I will suggest you to open your PC case (or notebook) and see whether cpu fan is dirty or not. This is very common problem. If so, clean it.

May 09, 2012 | Intel Computers & Internet

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Hard drive not being recognised by compaq presario SR1975AN on warm boot


The hard disk may be running too hot.
The desktop case inside temperature maybe too hot. Check the power supply fan/CPU fan are operating correctly. You may need additional cooling in the desktop case an additional fan near the hard disk.

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Pavillion a520n overheats and reboots. Fan on CPU runs during boot up then shuts off. Starts again when reboot occurs. Suspect thermal sensor not working. Is it in the fan or on the motherboard?


On motherboard. Please, make sure all fans are connected into motherboard.
Some fans can't plug in into the board at all. So, you can ignore those fans.
When you go to Bios to check thermal condition, if a fan is not plug in, you can see 0 degree. 0 degree dosen't cause the shutdown problem. (That's why you can ignore)
Then check which fans are causing problem, first. (If you did and found the problem, go next.)
Replace fans AND clean those dust!
If the problem remains, then replace its case to steel one.

Well, usually a lifetime of CPU fan is pretty longer than others.

Just in case, one more thing, if the thermal condition is OK, then the shutdown problem is caused by something ales!

May 26, 2011 | HP Pavilion A520n (DW233A#ABA) PC Desktop

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I have a dell inspirion 5000e recognizes hard drive in bios but can't access it. Now my cdrom won't boot or read disks. This also is recognized in bios. what could be the problem and how do i fix it? Plz...


Method 1 : Go to BIOS and set anything with SATA disable (usually find under advance setting in IDE configuration setting).Save the setting.

Windows Xp will detect your hard drive now.

Method 2 : This days BIOS comes with only few thing to configure.if that's is the case.
Download SATA driver,here is the link

http://download.cnet.com/SATA-Driver-Intel-Ver-7-0-0-1020-zip/3000-2122_4-162224.html

you need one more software called "nlite" in order to integrate the SATA driver in Windows XP CD so that it recognize SATA drives.

Here is the link for nlite download

http://home.midmaine.com/~nlite/nlite/nLite-1.4.9.1.installer.exe

On how to intergrate SATA driver with windows XP 

Go to this page :

http://www.nliteos.com/guide/part1.html

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Jan 16, 2010 | Computers & Internet

1 Answer

My sony vgc-rb40 will not boot bios with cpu fan connected


mostly all fans are 12V DC try connecting all the fans directly to SMPS of the system i.e the red and the black wire

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3 Answers

Strike F1 key to continue, F2 to run the setup utility


Please let me know what is the make and the model of the pc that you are using.. Also, go to the bios, under boot menu, make sure that you have hard drive as the first boot option.. For further queries please get in touch..

May 28, 2009 | Computers & Internet

1 Answer

Pci express slot


Hi dineshcs.
When adding a new graphics card (Your's being a PCI-Express), you must change a bios setting under the title " Advanced " section. Open you're M2N-MX manual & turn to page 2-21. You need to change the boot order for you're graphics to list,
[PEG/PCI]. Change Initiate Graphic Mode Select to [Disable].
These changes stop the onboard graphics card from loading & allow the PCI-Express card to load. The issue of possible motherboard overheating can be caused by many things. Here is a list of things to check.
1). Check the CPU heat-sink fan. Make sure the fan blades are
free from dust build up. Check fan speed in bios (Its RPM will be listed). It should be running a min of 2300 RPM.
2). Also in the bios is Hardware monitor. By booting into the bios go to this & watch the temp of CPU & motherboard. If either is getting too hot suggest you add a side case 3" fan to the system to help lower the CPU & motherboard temp.

Good Luck!

Mike

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1 Answer

Core fan Abnormal - Fan Speed 0 rpm - System slowdown


Well, since you connected your fan directly to the power supply, you are not getting any feedback thru the graphics card interface. This doesn't mean there is a problem since your fan is running full speed all the time, it is actually better and you should be able to see a difference on the GPU temperature.
If the GPU temperature is still too high and the fan is running at full speed, did you apply a thin coat of thermal paste on the heatsink? if not, there is your problem.

Now just to be clear did you connect the fan to the power supply or to a spare motherboard connector. If you connected to your motherboard, you need to go in the BIOS and change some settings regarding the fan speed (let me know if this is the case and I'll help you further about that.)

Alex J.

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