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Monitor /fan pent 4 motherboard dell dg280 cpu fan is like jet taking off cleaned from dust but still racing and my monitor works on other pc's but screen is just blank . is my motherboard ok? i have new memory and harddrive in.

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  • Jay Apr 26, 2009

    no dose not ee but thanks ill try your suggestions and ge back t u soon, thanks

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  • 73 Answers

Ok if you replaced the RAM and HD may i suggest removing the HD and turning it on, If it still does the same thing then try my test below. If it seems to correct the problem then either your HD is broken (Even new ones can be bad) or you installed it wrong, Try reviewing the HD's jumper settings or if its SATA it can be a power problem

If you have 2 sticks of ram, Remove both and seat in just 1 stick, Remove any CDRom drives and HD's, Plug in the screen and turn it on.

If its still not working then you may have to test it with different ram, How ever its a 50/50 chance that your motherboard has gone **** up.

One thing ... Does it beep when you turn it on?

Posted on Apr 21, 2009

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Posted on Jan 02, 2017

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My system suddenly hang when we restart it, monitor does not get any signal. After when we get rid hard drive motherboard was working. on other system my HDD is working fine.


This is usually dust clogging up the CPU cooler.
When the owner of the PC forgets to clean the fins and the fan of the CPU cooler it plugs up with dust and dirt and looks like the inside of a vacuum cleaner.
There is not enough airflow and thus not enough cooling, so the CPU overheats and the safety circuit shuts the CPU off until it cools down, and the CPU will not reboot the PC until it is cool enough that the safety circuit can reset.

First step remove the CPU fan and check the fins of the CPU cooler. If they are clean, the problem is usually somewhere else.

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When i turn on my dell dim 8400 the fan races very fast i have to power down and start back up sometimes it takes 2 or three times then starts to work but after awhile it freezes up or if i wiggle the...


Normally, when the fan gets loud and races, it means that the CPU is getting too hot. The normal fault is that the case and ventilation block on the CPU is full of dust.

Disconnect the tower and take it outside or somewhere where a bit of a mess isn't a problem. Open the tower and look inside. Is it full of dust?

Using a dry soft bristle paint brush, CAREFULLY liberate any dust and fluff, if you have a hoover, brush to the hoover to remove dust.

The CPU is under a big metal blob with a fan on the top, Underneath the fan there are a load of ventilation duct in a metal block. See if you can clean them out, compressed air in a can is a good way. In conjunction with the brush.

Check all the vents and fans are clear of dust, including the PSU.

Once done, try it again, does it still race / lockup / close down.

If so, then you may need to renew the heat dispersal grease which is placed between the CPU and the Heat sink (Vented metal block under the fan).

The best place to find how to do that is look on Youtube for CPU changing / fitting / upgrading.

Mar 26, 2011 | Dell Dimension 8400 PC Desktop

1 Answer

When cut on dell gx280 no lights come on or video sounds like fan over CPU is racing. won't boot at all. Was working fine


If there is no beep codes or the 4 LED's in the back aren't lighting it could be a plethora of possibilities. Anything from the power supply going bad to the bios. You'll need to have someone take a look at it.

Aug 05, 2010 | Dell (8N816) Motherboard

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My Dell cooling fan now runs at a high speed and the computer will not turn on. I robbed one from an older Dell, and got a message that the (new-old) fan wasn't working, (The plug was smaller then mine)but...


The cooling fan racing is a symptom of a No Post state in the Motherboard. The Power LED and diagnostic LED indications would be helpful in resolving your issue. If the power LED is flashing Amber, the power supply is suspect, solid Amber points to the motherboard or something connected to it. The DIAG LEDs 1234 on the front or ABCD on the back give more specific information.

Initial Impression, is motherboard failure, post the DIAG and Power LED indications for more exact diagnosis

Mar 03, 2010 | Dell (6F858) Cooling Fan

1 Answer

Fan races slows down races again


the fan is supposed to speed up when the processor gets too hot, then slow down after it has cooled a bit. if it is running more than normal, maybe you should take the cover off the pc and clean the dust out of the cpu heatsink.

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Dell Optiplex GX270 sounds like a jet taking off. What is wrong and what do I need to do to fix it?


Hi,
You have to find out where the noise is coming from. It could be;
1) a fan on your motherboard if it has one
2) the fan on your heatsink that keeps your cpu cool
3) the fan on your power supply unit
4) a cd or dvd rom drive
5) one of your hard drives
6) one or more of your case fans.
7) a fan on your video card if you have one.

You don't want to open your power supply, so if this is the cause of the noise you can replace the whole PSU. Other than that, any other component listed above can be replaced by going to newegg.com for parts.

Good luck,
Hank



Sep 14, 2009 | Dell Heatsink and Fan Optiplex GX270 K4598...

1 Answer

CPU Shutting Down the PC


The clips attach on either side of the heatsink. They usually just pry up to remove (take a pic if u can of the heatsink b/4 removing clips). I'm guessing the fan is loaded with dust. Cleaning a fan will usually fix any problem you're having with the fan itself. If after cleaning the fan it works and PC still shuts down, you have 1 of 2 problems:
  • Bad power supply; make a not if the fan for the power supply is still working; a can of compressed air does a nice job of cleaning the inside of the PC including the power supply
  • Bad motherboard; only cure for bad motherboard is replacement
I hope this clarifies your issue and please don't hesitate to post back with other PC issues. All the best!
Greg

May 12, 2009 | Acer Power F1 PC Desktop

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Intel 845gvsr problem of thermal heating of cpu


To solve the thermal heat problem
1. Apply heat paste pound inbetween the processor and motherboard.
2. Check the MotherBoard cpu pins are correct temper.
3. Check the CPU Fan's RPM in hardware monitoring menu in BIOS mode.
4. If dust is form inside of the fan rotar open the plastic lock and take the Fan out and clean clearly apply the oil slightly in the pully.
5. If This problem is till continue, Change the SMPS and rescet the BIOS setup. Now problem will clear.
6. Problem is till continue check the CPU and and then MotherBoard.
7. This is usefull to you. i think so. any how feadback to 'abdulsoftdrive@gmail.com'
THANKYOU

Mar 04, 2009 | Enlight 17IN LCD PC SILVER/CHARCOAL W/...

1 Answer

Screen freezes often


check the CPU fan if it is working fine
clean the dust on cpu fan
try cleaning the ram
after trying all above then also if u face the same problem try checking the power supply connectors which connect your motherboard
and the last 2 options will be your motherboard or processor

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Loud "jet engine taking off" type sound


If you changed out the power supply then the only other device that could be making that noise is your CPU cooling fan. To be sure, open the case and disconnect the CPU cooling fan plug from the motherbrd (MAKE SURE POWER IS OFF) and see if the noise stops. Don’t worry about the “Fan Failure Error” when you turn on the computer. Just hit F1 to continue. Don’t leave the computer running without the fan plugged in longer then necessary. After tying this procedure, please contact me for further diagnosis.

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