DELL MOTHER BOARDClosed

Question

Hello, 

Dear Sir
I have a Dell Optiplex  GX 280 system with me. Recently the system does not show display  but  the processor fan rotates in a normal speed  and slowly its speed increases. and the noise is getting  high.  i checked thoroughly. i turned the system off and removed the 4 wired connector (two yellow and two black ) and  simply turn on the system for 2 minutes and then  connected that 4 wired connector after turning off. again i turned the system on. no problem  display  came.i checked somany time. same  result. i observed  one thing  that once the the system turn on and display  came ( as per the  above mentioned  procedure), if the  power is not turned off  - at  any time  display  comes.  if the  power is turned off after shutting  down, no display will be .I request the merciful people to guide me to solve the problem

jack4rall · Answer

Hello,

Try this 1

Since you are saying the CPU fan speed increases with noise, follow the

below steps.

Open the cabinet --> Remove the dust --> Carefully remove the heat sink from

the CPU and clean the CPU Fan--> Remove the old thermal compound from the

CPU and from the heat sink --> Apply a little new thermal compound in the middle

of the CPU and place the heat sink back properly.

Make sure that you have removed the dust from the CPU Fan and Heat sink. 

Remove the RAM from the slot, clean it and place it back properly or try another

slot.

Good Luck

shajideepa · Answer

Dear Sir 
the  problem is mainly connected with display. no display comes when i turn on system.  normally the heat sink fan of all dell system rotates for 3 or 4 seconds and stops when it is given power. here  when the power is given  instead of rotating for 3 or 4 seconds and stops the fan  is rotating  and does not  stop.   
please help me

DELL MOTHER BOARD

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