Question about Acer Aspire 5100 Notebook

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Screen won't appear upon start up and I get 3 beeps but no screen

My screen started to dim last evening, I turned off the computer and now it the screen not light up or appear. The computer makes three beeps and nothing happens. Is it completely dead?

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  • Acer Master
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What you are hearing is a beep code, if its 3 short beeps then its the memory which has developed a fault and it may need to be replaced

Posted on Nov 16, 2008

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Geekman
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SOURCE: Screen won't appear upon start up and I get 3 beeps but no screen

3 beeps POST code (power on self test) means RAM problem.
Reseat the RAM module/s and boot up your computer.
If you have two RAM modules, remove them both and insert one at a time to test them, to determine which module is faulty.
If it still doesn't work then replace the RAM module/s

Posted on Apr 02, 2009

6ya6ya
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Posted on Jan 02, 2017

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I have lenovo g550...my screen flickers in every 5minutes...


Failing Inverter An inverter, typically found inside a laptop computer, consists of a small board, which has impregnated electronic circuits stamped on it. Inverters look like thin boards about the of two sticks of chewing gum. The inverter and its bulb control the intensity of the liquid crystal display, which lights the screen monitor. The computer can control the output voltage of the inverter and either lighten or darken the screen. A special type of inverter can adjust the brightness of the screen by using an internal sensor to judge the room brightness, and then adjust the screen accordingly. Failing inverters give off some specific warning signs, which can be recognized by observing different screen characteristics.

Short Intermittent Display Upon turning on the laptop, the screen flashes on in the normal mode for a short period and then blinks to black. A very faint image appears in a dark background, which will be very hard to see almost invisible. After shutting off the laptop and restarting, the same mode occurs, where the screen appears normal for a few seconds then fades to black. This condition points to a failed inverter. To confirm this, plug in an operational external monitor; if the external monitor functions, the inverter has failed. b> Total Blackout with Ghost image b> The laptop turns on, as indicated by the power supply button, but the screen comes up black. The screen comes up black after restart. You might be able to detect a very dim or ghost-like image on the monitor. When you plug in a known functioning external monitor, the external monitor operates normally. This mode of display indicates a failed inverter. b> Long Term Periodic Operation b> With this failure mode, the laptop screen illuminates normally upon start-up and remains that way after several minutes, hours or even days, until it goes very dark again. Brightness controls or restoration attempts do not work. Most often, the screen will function normally with a computer restart, but will eventually return to black. Faint ghost images might appear, as seen in the total blackout mode. b> Dark With Color Variation b> Upon computer start-up, the monitor shows black or dark gray, accompanied by very faint images. The screen might have an intermittent color change, or remain on with a non-standard color variation, like pink or red. b> Auto Control Switch b> If the screen appears black, with no faint or ghost images, look for the lid switch near the back hinge. The switch, when depressed with a closed lid, shuts off the computer and monitor functions. Sometimes the switch becomes stuck in the closed position, disallowing the computer and monitor to turn on when opened. Pushing the switch manually several times can often free it up. If the switch tab has broken or jammed inside the case, it needs replacing. b> Loose Connection In this mode, the display looks normal upon start-up, but tapping the side case of the computer turns the screen black. More tapping results in the screen functioning normally then cutting out again. This condition points to a loose wire connection from the inverter to the LCD backlight lamp, or the video cable. The connectors can be accessed by removing the monitor bezel screws and pulling the plastic retainer off. Both connectors can be cleaned and refitted.

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Mercury mother bord not loding satup manu with all f key and 'del' stop in start screen


1) Look at the bottom of the Mercury logo screen when it comes up.

2) Memorize or write down the -> enter BIOS Setup, or enter CMOS Setup key.

3) Restart the computer.

Let it go to Windows, then Start > Turn Off Computer > Restart.

Won't go to Windows? Hold down the CTRL and ALT and DELete keys AT THE SAME TIME. This will restart your computer.

AS SOON AS the monitor screen goes blank, (Windows is restarting), tap on the enter BIOS Setup key repeatedly.
Tap in 2 second intervals.

Hear a series of beeps? They are Stuck Key Error Code beeps, and you are causing them. Ignore the beeps.

Computer is off?

AS SOON AS you press the Power On button, start tapping on the enter BIOS Setup (CMOS Setup) key.

The enter BIOS Setup window goes by F-A-S-T. The above method/s will get you into BIOS Setup.

Regards, joecoolvette

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1 Answer

Cmos beep codes


do you know which bios your computer is running ?

AMI BIOS beep codes 1 beep - DRAM refresh failure
2 beeps - Parity Circuit Failure
3 beeps - Base 64K RAM failure
4 beeps - System Timer Failure
5 beeps - Processor Failure
6 beeps - Keyboard Controller / Gate A20 Failure
7 beeps - Virtual Mode Exception Error
8 beeps - Display Memory Read/Write Failure
9 beeps - ROM BIOS Checksum Failure
10 beeps - CMOS Shutdown Register Read/Write Error

Phoenix BIOS BEEP codes. 1-1-3 CMOS write/read failure.
1-1-4 BIOS ROM checksum error.
1-2-1 System timer failure. (Programmable Interval Timer PIT)
1-2-2 DMA (direct Memory Access) failure.
1-2-3 DMA page register failure.
1-3-1 RAM refresh failure.
1-3-3 64K RAM chip or data line failure.
1-3-4 64K RAM odd/even logic failure.
1-4-1 64K RAM address line failure.
1-4-2 64K RAM parity error.
2-?-? Any beep series starting with 2 beeps indicates a 64K RAM chip or data line error.
3-1-1 Master DMA register test.
3-1-2 Mslave DMA register failure.
3-1-3 Master interrupt mask register failure.
3-1-4 Slave interrupt mask register failure.
3-2-4 Keyboard controller failure.
3-3-4 Screen (video) memory failure.
3-4-1 Screen initialization failure.
3-4-2 Screen retrace failure.
4-2-1 Timer tick interrupt test failure.
4-2-2 Shutdown test failure.
4-2-4 Unexpected interrupt in protected mode.
4-3-1 RAM test failure above address 0FFFFh (64K +)
4-3-3 Interval timer channel 2 test failure.
4-3-4 Time of day clock failure.
4-4-1 Serial port test failure.
4-4-2 Parallel port test failure.
4-4-3 Math Co-processor failure.
BEEP codes may vary dependent upon the revision of BIOS. This list is for reference only

hope this helps

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1 Answer

Device could not start


what device? is *********** board won't start? Or a hardware doesn't start like ram or your printer
If the problem is your motherboard check all your hardwares and connectors like this:
  1. If the motherboard won't start if you click the power button check the LED(the small light bulb on your motherboard) if its glowing. If not, check the connector of your power supply or check the power supply if its working by looking its fan if revolving.
  2. If you push the button and there's a sign of power but didn't start up that will appear on your screen check the connection of your monitor screen to your desktop computer. If it's connected, remove your RAM from the motherboard and insert it to another memory slot to check if it's broken.
  3. Last, if you push the power button and here 1 short beep but the boot screen didn't appeared from your screen check your graphic card. Remove the graphic card and re-insert it again to its graphic card slot and plug in your monitor connector to it. If it still remain that way, buy a new graphic card.

Aug 01, 2011 | Computers & Internet

1 Answer

But my laptop even don't work in safe mode. Blue screen appears and computer restarts again . What to do??


Try running the last known good configuration.

Follow the steps below,

Step 1: Shut down your PC completely.
Step 2: Turn on the Power button.
Step 3: As soon as you turn it on start hitting the F8 key on your keyboard until you get to a black screen called "Windows Advanced option". (If you don't get to that that screen but you end up reaching the blue screen than that means you have delayed in hitting the F8 key. start again from step 1.)
Step 4: As soon as you reach "Windows Advanced option" use your down arrow keys to choose an option called "Last know good configuration".
Step 5: Select that and HIT ENTER.

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My Compaq EVO d510 SFF won't boot, it does only about 5% of the time and when it does nothing appears on the screen, no sounds, the fan and everthing runs, the screen works and all cables work so any help?


1. does it at least turn on? do you see lights?? if you don't chances are you may need to replace the power supply.
2. if it does turn on.. do you hear any beeps.. could you describe how many beeps, how long are each one of them, if you get beeps, it's the motherboard usually letting you know about a hardware problem.

3. if it does turn on and no picture, (not even the very first picture with a motherboard/video brand/computer manufacturer) you may have a video card problem. I suggest you start replacing that item first.

hope it gives you an idea on where to start looking
good luck!

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Sony vaio PCG-GRT30P Screen Problem


You could have a defective screen, either a faulty inverter or a CCFL lamp - follow this to determine the fault.

Defective CCFL backlight, it may have the following symptom:
  • Screen flashs on red/pink and off.
  • Picture stays on in red and slowly be come normal.
  • Picture flickering with dim display.
  • Picture flickering on and off.
All these symptoms indicate that the LCD backlight lamp (CCFL Lamp) has reached the end of the life and all you need to do is replacing the CCFL lamp

Connect an external monitor to your laptop and power it up, if you see the normal Windows images then the video card and laptop is OK and the problem is definitely the backlight.

Dim image and/or dark display on the laptop's LCD screen indicates a faulty LCD backlight and it could be the inverter that supplies high voltage to the CCFL lamp or it is the CCLF lamp is nearly burnt out or burnt out, most likely this is the case.
The inverter can be replaced easily but the CCLF lamp is more time consuming and requires soldering skills.
Check out www.lcdparts.net for parts, repair service and DIY info.

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Screen won't appear upon start up and I get 3 beeps but no screen


3 beeps POST code (power on self test) means RAM problem.
Reseat the RAM module/s and boot up your computer.
If you have two RAM modules, remove them both and insert one at a time to test them, to determine which module is faulty.
If it still doesn't work then replace the RAM module/s

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When I turn on my computer the monitor takes a long time to warm up and colors change and vertical lines flash across the screen from right to left before the screen becomes normal again. Now the power light even goes out upon turning on my computer and I have to unplug the video cord and plug it back in to start the screen back up which even takes longer.

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