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No display in my monotor power L.E.D& Hard disk L.E.D blinking on CPU

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Remove the power on the Tower not the screen for 10 minutes

Posted on Feb 27, 2008

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Posted on Jan 02, 2017

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Dell inspiron laptop N5040 3 beeps interval 3 beeps black screen


Explain the intervals at which it beeps, either 2 short beeps and a prolonged beep. does the hard disk LED blink? if it does its display inverter problem. if no blink on hdd LED its either RAM or cpu failure.

Oct 04, 2013 | Dell Inspiron Computers & Internet

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Beeps red light hp pc


The blinking should be in a pattern.

Power Green On (S0) Computer on
Power Green 1 blink every 2 seconds (S1) Suspend Mode
Power Green 1 blink every 2 seconds (S3) Suspend to RAM
Power Green Off (S4) Suspend to Disk (if applicable)
Power Clear Off (S5) Computer off
Power Red 1 blink followed by 2-second
pause - Repeat
Power Supply failure
Power Red* 2 blinks 1 second apart CPU thermal shutdown
Power Red* 3 blinks 1 second apart CPU not installed
Power Red* 4 blinks 1 second apart Power supply overload (crow bar)
Power Red* 5 blinks 1 second apart No memory
Power Red* 6 blinks 1 second apart No graphics
Power Red* 7 blinks 1 second apart System board failure (detected prior to video)
Power Red* 8 blinks 1 second apart Invalid ROM
Hard Drive Green Blinking Hard drive activity
*Blinking

Aug 17, 2013 | HP Computers & Internet

1 Answer

Due to power variation my display suddenly goes blank, then i powered off my system. again restarting there is no display on monitor only monitor light blinks.cpu is working properly ,hard disk, ram ,heat...


if it is an on board video sound like it got damaged by power failure,try adding on a video board and disable on board video in bios,make sure you have an avalible slot to add board

Feb 02, 2011 | Intel Motherboard

1 Answer

I have a hp a350 cpu.the problem is that the light of led has gone red,as before in working condition it was green. It can't start.the power to hardisk is also not coming.please tell a sollution.


As you say has become red and no power to the hard disk.
First check the power cable for any loose connections and check if it give power to the cpu and the fan placed on processor starts working as you start the power. If fan it starts and with in few seconds stops then your power supply/SMPS is weak or damage. So replace it for proper working of your computer. And if after power on all fines but red led on monitor and no power to hard disk Try to replace the hard disk power cables because they are not working because of it no operating system is detected and led of monitor is red. After replacing hard disk cables hard disk starts working and still no display or red led on monitor check the vga cable for loose connection or replace it.If you are using vga display from graphic card try to get display first from onboard vga slot.After it your problem will disappear and your pc run smooth and fine.

Aug 27, 2010 | HP Compaq d530 SFF PC Desktop

1 Answer

2 light is lit on front of cpu


That's not a problem. One light(Green one) is for power and another (Red one) is for Hard Disk. Red one will blink continuously, if hard disk is being accessed.

May 20, 2010 | Dell Optiplex 740 Desktop Desktop Computer...

1 Answer

Why our HP L1740 17" LCD monitor has no display at all but had power


Good Day sir/maam, lets try to make sure that the LCD is the problem and not the CPU,
  1. Swap your LCD to a good CPU, to check if the LCD is good (visit a friend who has a PC).
  2. Or as you boot your PC, did you hear a single beep? and
  3. Does your PC hard disk led blinks.
If you insist that the LCD is the problem, you may need to check first your dealer for advice.

Oct 20, 2009 | HP L1740 17" LCD Monitor

2 Answers

DO ANYBODY KNOWS WAT TO DO IF DISPLAY NOT APPEARS


The 280W may not be supportive enough for the computer requirements and is not diverting its power correctly to power the VGA part of the motherboard.

Jan 31, 2009 | Compaq Refurbished 280WATT POWER SUPPLY...

2 Answers

Does not startup or boot, displaying a blank screen


remove the battery and try to start the machine om AC power only

regards

Nov 26, 2008 | HP Compaq Presario v3000z Notebook

1 Answer

The screen doesn't display


that means the computer is not getting signals from the cpu .. its because of cpu problem .. mainly dust inside hard disk connectors clena and refit memory and hard disk

Dec 02, 2007 | Samsung SyncMaster 793DF 17" CRT Monitor

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