Question about HP Pavilion 754n PC Desktop

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My 754n will not turn on

When i push the power button the light blinks and the fan starts to spin but it turns back off.. 1 second

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Make sure that the power wolts is as per required.
and try connecting to different wall outlet and also check the CPU fan. if it is firmly fixed.

Posted on Jan 19, 2009

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CANDY CLD 135-86S will not boot, blinking lights two


More than likely you have a memory or video card issue.

Whenyou plug in the power cord is there any lights whatsoever on the computer?

When you press the power button do you hear fans running, hard drive spinning,lights on the computer, hear any beeps or lights constantly blinking, hear theDvD/CD drive click and the light on the drawer of the DvD/CD turn on for asecond or two? If so the laptop is trying to boot or may have booted, butthe screen is not showing for some reason.

Beep tones and blinking lights tells the technicians what is going on with the computerand why it is not booting. Most times it's a motherboard issue when youhear beeps or blinking lights continuous. Most times the problem is withthe memory or Video Card. Count the Blinking Lights or Beeps and take note oftheir pattern (1 Long or 1 Long followed by 2 Short).

Maybe your power cord is bad if you don't get anything to happen whatsoeverwhen you press the power button. Maybeyou have a Static Charge Buildup. Remove the Power Cord, then Press andHold the power button for 30 seconds. After 30 seconds plug the powercord back in and hit the power button to see if it boots. Maybeyour memory is bad or the memory slot is bad.Removethe Power Cord, Open the Case and remove one of the memory chips. Set thechip aside then try rebooting the computer. If it boots, then you knowthe memory chip you set aside is bad so mark an x on it with an ink pen. If it fails to boot then move the chip to the next memory slot and tryrebooting. If it fails take the chip out and set it aside, then put theother chip in and try booting it in both slots. If it boots, just toverify that the chip set aside is bad, mark an x on it and put it into the openmemory chip slot and try booting.Maybeyour power supply is bad. Sometimes there is enough power to make thepower light or some other lights come on but not enough power to make the fanturn on or hard drive spin.

Jun 09, 2012 | Computers & Internet

1 Answer

After turning on it turns off automatically after 3-4 seconds


When you plug in the power cord is there any lightswhatsoever on the laptop, where the plug goes in or on the AC Adapter of thepower cord?

When you press the power button do you hear fans running, hard drive spinning,lights on the computer, hear any beeps or lights constantly blinking, hear theDvD/CD drive click and the light on the drawer of the DvD/CD turn on for asecond or two? If so the laptop is trying to boot or may have booted, butthe screen is not showing for some reason.

Beep tones and blinking lights tells the technicians what is going on with thelaptop and why it is not booting. Most times it's a motherboard issuewhen you hear beeps or blinking lights continuous. Most times the problemis with the memory or Video Card. Count the Blinking Lights or Beeps and takenote of their pattern (1 Long or 1 Long followed by 2 Short).

Maybe your power cord is bad if you don't get anything to happen whatsoeverwhen you press the power button. And if that's true maybe you wasoperating off the battery the last time you had it on and since the power cordis bad, it was not charging the battery so the battery is drained and the powercord is bad.

Maybe you have a Static Charge Buildup. Remove the Power Cord, Remove theBattery, then Press and Hold the power button for 30seconds. After 30 seconds plug the power cord back in (leave the batteryout) and hit the power button to see if it boots. If it does, you can putthe battery back in and let it charge.Maybe your DC Power Jack which is where the power cord plugsinto the computer is bad. Take an ink pen and push the tip inside thejack and see if the little pin wiggles, if so the jack is bad. You'll have totake the laptop apart to fix it. Most times it is soldered onto themotherboard, so you will have to desolder the old and solder a new one.Maybe your memory is bad or the memory slot is bad.Remove the Power Cord, Open the Case and remove one of thememory chips. Set the chip aside then try rebooting the computer. If it boots, then you know the memory chip you set aside is bad so mark an x onit with an ink pen. If it fails to boot then move the chip to the nextmemory slot and try rebooting. If it fails take the chip out and set itaside, then put the other chip in and try booting it in both slots. If itboots, just to verify that the chip set aside is bad, mark an x on it and putit into the open memory chip slot and try booting.

Jun 07, 2012 | Computers & Internet

1 Answer

Aspire 1 laptop won't turn on but the light bulb


When you plug in the power cord is there any lightswhatsoever on the laptop, where the plug goes in or on the AC Adapter of thepower cord?

When you press the power button do you hear fans running, hard drive spinning,lights on the computer, hear any beeps or lights constantly blinking, hear theDvD/CD drive click and the light on the drawer of the DvD/CD turn on for asecond or two? If so the laptop is trying to boot or may have booted, butthe screen is not showing for some reason.

Beep tones and blinking lights tells the technicians what is going on with thelaptop and why it is not booting. Most times it's a motherboard issuewhen you hear beeps or blinking lights continuous.

Maybe your power cord is bad if you don't get anything to happen whatsoeverwhen you press the power button. And if that's true maybe you wasoperating off the battery the last time you had it on and since the power cordis bad, it was not charging the battery so the battery is drained and the powercord is bad.

Maybe you have a Static Charge Buildup. Remove the Power Cord, Remove theBattery, then Press and Hold the power button for 30seconds. After 30 seconds plug the power cord back in (leave the batteryout) and hit the power button to see if it boots. If it does, you can putthe battery back in and let it charge.Maybe your DC Power Jack which is where the power cord plugsinto the computer is bad. Take an ink pen and push the tip inside thejack and see if the little pin wiggles, if so the jack is bad. You'll have totake the laptop apart to fix it. Most times it is soldered onto themotherboard, so you will have to desolder the old and solder a new one.

Apr 02, 2012 | Acer Computers & Internet

1 Answer

I have a fujitsu e8410 which will not start up properly, when i push the start button it shows power but then the fan comes on and the cap num and shift lock leds flash and nothing else. can you help?


When you plug in the power cord is there any lightswhatsoever on the laptop, where the plug goes in or on the AC Adapter of thepower cord?

When you press the power button do you hear fans running, hard drive spinning,lights on the computer, hear any beeps or lights constantly blinking, hear theDvD/CD drive click and the light on the drawer of the DvD/CD turn on for asecond or two? If so the laptop is trying to boot or may have booted, butthe screen is not showing for some reason.

Beep tones and blinking lights tells the technicians what is going on with thelaptop and why it is not booting. Most times it's a motherboard issuewhen you hear beeps or blinking lights continuous.

Maybe your power cord is bad if you don't get anything to happen whatsoeverwhen you press the power button. And if that's true maybe you wasoperating off the battery the last time you had it on and since the power cordis bad, it was not charging the battery so the battery is drained and the powercord is bad.

Maybe you have a Static Charge Buildup. Remove the Power Cord, Remove theBattery, then Press and Hold the power button for 30seconds. After 30 seconds plug the power cord back in (leave the batteryout) and hit the power button to see if it boots. If it does, you can putthe battery back in and let it charge.

Mar 31, 2012 | Computers & Internet

2 Answers

Red light blinks and wont stay on when push power button


You can do this fan test.

Turn the main switch off, hold the eject button.

While holding the eject button, turn the main switch on, when the power light is green, release it and you should hear a beep.

The fan will operate at the highest speed possible and will eject any disc that is inside.

After about 15 seconds the fan will stop spinning and the ps3 will beep 3 times and the red light will blink. When this happens, turn the main switch off and on then turn it on normally.

Tell me how this goes!!



May 05, 2011 | Sony Playstation 3 (PS3) Console

1 Answer

Dell XPS400 No Start!!


If you fan isn't turning like it should, it is definitely a power supply issue. Go out and purchase a power supply with 250-300 watts...thats a good standard wattage!!

May 12, 2009 | Dell XPS 200 PC Desktop

1 Answer

01% humidity


When you push the power button, the blower fan comes on. In a few minutes you should hear a second "click"--that is your compressor starting. Do you hear that second click?

The compressor is located in the rear bottom on the right side looking at the machine. After you press the start button and the blower fan comes on, bend over near the back of the unit and listen for the "click".

Sep 06, 2008 | Kenmore 54501 Dehumidifier

1 Answer

Fujitsu Plasmavision PDS-4233


HI, I haHe a Fujitsu Plasma HDTV Model PDS4233. The TV won't power ON, When i turn on the master power button the light starts flashing a red light repeatedly. I also observed that the Fans power up for about three seconds immediatly after i press the master power button, after the three seconds the fans shut OFF and the light continues to blink.. I haven't observed the light to see if there is a pattern with the blinking..

Aug 30, 2008 | Fujitsu Televison & Video

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