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No video boot or blank screen on bootup

Ok I will try to be as specific and answer forward as I can.

Common issues for no video boot:

1) Ram-short for Rambus. Rambus is the language the CPU"central processing unit" understands. The Ram converts everything you do to this language. Both the Ram and the CPU have their own Cache "short term memory storage". If the Ram is bad the pc can no longer translate your commands nor the bios command to boot the video card. The bios is not a cache therefore its long term built in memory. Its job is the most important as it does a pre-boot check and measure on everything connected to the board b4 it gives the ok to boot the hard drive. The bios runs behind the operating system and will "blue screen" a non functioning device.

Ok that was pc 101 and one of the least expensive things that will cause a no video boot. For those that didnt follow I am referring that the ram may be defective. This is the most common solution for this issue.

Backlight tube- This is just exactly what it sounds like. It produces the rear projection of light to the lcd screen. Although its rarely the issue its an easy cheap thing to replace about $20 or less. Again this is RARELY the issue regardless what u see on the net if you ask people they will tell you it was something other than the wasted $20 they spent buying this part.

After stating this it is not uncommon for a backlight tube to have a lose connection so check for that b4 buying a new screen.

The video card itself is the rarest device that would cause the issue. If you have video boot b4 the operating system boots its not the video card but your close. Its most common a bad video card driver. You can boot your pc into "safe mode" Safe Mode is a partially functional boot that will allow you to remove a bad driver or roll back a driver to an earlier version. You can get to safe mode by using the correct F-Key while in pre-boot.

If you are getting a partial screen or dead pixels it should be easy for you to realize the LCD screen is shot. Average screen should run around $100 so shop around to get the best price or buy a donor pc to pull one from.

Always try to check your laptop using its external VGA output port. You can hook any VGA monitor to 99% of laptops to see if the problem is mainly the video or if its a board issue.

Now we get to the more expensive. The CPU if defective will not only cause no video but also cause the pc to shut down prematurely. Most of the time on a laptop the CPU may be ok but it is overheating. If the heatsink fan is clogged it will cause the cpu to overheat and a failsafe shut down. You can have your laptop cleaned professionally at a repair shop. Since your laptop when opened up is sensitive to static shock I recommend it be done at a shop. Depending on what your lifestyle is the time between cleaning will be different. If you live in a smoke free environment you may get this done every 2 years. If your a smoker or live with a smoker expect a yearly cleaning. If you have a pets in the house as well yearly.
Hope this advice helps or answers some of the viewers.




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3 Answers

everytime i turn on my pc,it beeps 3x(1long then 2short),then black screen so i have to reboot again


Hi,

Here are the following steps you can try to fix this issue, ive experienced it myself using a dell PC and it works on my end.

You have what is called a No Post No Video Situation.


1: The Modem can cause a No Post No Video. Pull it and see what happens.
If it still does not boot. Strip the System down with nothing on the Board but Power Supply Processor and Fans.
This Includes All Memory, All Cards, All IDE Cables. Hook just the Power up and See if you get Memory Error Codes ( Beep Codes ). If you Do ( And you Should ) then Reseat the Memory ONLY. If you dont more than Likely it is the Power Supply or Motherboard.
If Reseating the Memory back in Memory Bank 0 causes a No Post. Pull the Memory and put the Memory in Bank 1. If it Post then Bank 0 is bad on the Motherboard. If it Dont, You Need Memory. If you have more than 1 stick then try with one or the other and make sure one of them is not bad. If it is Rambus Memory you will need to add both sticks, because Rambus is Required for Pair.
If in Bank 0 the System Posts, add the Video Card and connect the Power and Monitor. You should get Post and Video. If you do not, Video Card is bad.
From there add the Hard Drive IDE and Boot the System. If it does not boot then try the IDE Cable in the CDROM Controller and see what happens. If it Boots then the Controller on the Motherboard is bad. If it Causes a No Post No Video, Hard Drive is Bad.
From there Add One IDE Back at a time and make sure it is none of those drives or Controllers. If you find that one of the Drives is causing a No Post No Video, Try a Known Good Drive. If it Posts and Boots. The Drive is Bad. If it Dont, The Controller on the Motherboard is bad.
After that Add one card back at a time. Find out which one is causing the Issue. Sometimes Reseating everything works fine. If none of these work then You May have Either a Bad Power Supply or a Bad Processor. Also dont forget that you may have had a Surge or Storm and May have Caused a the Motherboard to get damaged.
Dell has a Good Artical on Steps to do for this at http://support.dell.com/us/en/kb/document.asp?DN=TI1014149

May 30, 2011 | Microsoft Windows XP Professional

6 Answers

dead


Hi

THe most common beeps that you will encounter 95% of the time in repairing PC's are:

1 beep - computer ok
continous beeps / long beeps - memory error
continous short beeps - bios boot block/corrupted bios
1 long beep followed by 3 short beeps - video card error


or this might help

you can check out this list



AMI BIOS

1 short - Computer ok
2 short - RAM failure
3 short - Parity RAM failure
4 short - System timer failure
5 short - Motherboard failure
6 short - Keyboard controller error
7 short - CPU failure
8 short - Video RAM failure
9 short - ROM BIOS error
10 short - CMOS read/write error
11 short - Cache RAM error
1 short, 3 long - Memory failure
1 short, 8 long - Video adapter failure

Check board/chipset makers website for more infomation.

AWARD BIOS

1 long - Memory error
1 long, 2 short - Video error
1 long, 3 short - Video failure
Continuous beeps - Memory or video failure

note that AWARD relies on motherboard manufacturers to develop their own beep codes - the above are only their own internal codes. You will need to refer to your own manual for an explanation of precise codes.


Standard IBM beep codes.

No beep - Power supply or motherboard failure
1 short - System is ok
2 short - POST error (code displayed on screen)
Repeating short - Motherboard failure
1 long, 1 short - Motherboard failure
1 long, 2 short - Video display adapter failure
1 long, 3 short - Video display adapter error
3 long - Keyboard error


Pheonix beep codes

1-1-3 CMOS memory failure
1-1-4 BIOS failure
1-2-1 System timer error
1-2-2 Motherboard error
1-2-3 Motherboard error
1-3-1 Motherboard error
1-4-1 Motherboard error
1-4-2 Memory error
2-x-x Memory failure (any number of other beeps)
3-1-x Chipset error (any number of other beeps)
3-2-4 Keyboard controller error
3-3-4 Video adapter failure
4-2-4 Expansion card failure
4-3-4 Time of day clock failure
4-4-1 Serial port error
4-4-2 Parallel port error
4-4-3 Math co-processor error


pls rate as fixya if it helps. thanks

Jul 04, 2008 | Acer Aspire 5100 Notebook

1 Answer

Computer doesnt boot, just shows, a black screen, and bipes 1 long and 2 short and sometimes 1 long and 3 short, i have tested the memorie ram and the vga cards, both are working fine...im either thinking ites processor our the motherboard.


This is usually a video card or RAM issue.
Make sure you got the right RAM (ie - correct speed and size [not too large/over specs]) and re-seat the video card.
Also try resetting the CMOS. As I recall, there is a jumper near the battery to do this.
With power off, move the jumper to the other set of pins, then back again after about 10 seconds, then re-power the board.

Try using only one memory stick. 1 long 2 short is a memory issue. Clean the memory contacts and reinsert the RAM.

Clean and reinsert the video card. 1 long and 3 short is a video issue. Try a different video card if you have one.

Feb 24, 2011 | ASUS M2N4-SLI Motherboard

2 Answers

ram upgrade


you need to make sure the ram is compatable, it looks like an old machine so chances are its using sdram pc100,
check the ram your trying to make sure its not pc133. let me know what each piece of ram has on its sticker

Mar 23, 2009 | Dell OptiPlex GX200 PC Desktop

1 Answer

display problem


The most common beeps that you will encounter 95% of the time in repairing PC's are:

1 beep - computer ok
continous beeps / long beeps - memory error
continous short beeps - bios boot block/corrupted bios
1 long beep followed by 3 short beeps - video card error


or this might help

you can check out this list



AMI BIOS

1 short - Computer ok
2 short - RAM failure
3 short - Parity RAM failure
4 short - System timer failure
5 short - Motherboard failure
6 short - Keyboard controller error
7 short - CPU failure
8 short - Video RAM failure
9 short - ROM BIOS error
10 short - CMOS read/write error
11 short - Cache RAM error
1 short, 3 long - Memory failure
1 short, 8 long - Video adapter failure

Check board/chipset makers website for more infomation.

AWARD BIOS

1 long - Memory error
1 long, 2 short - Video error
1 long, 3 short - Video failure
Continuous beeps - Memory or video failure

note that AWARD relies on motherboard manufacturers to develop their own beep codes - the above are only their own internal codes. You will need to refer to your own manual for an explanation of precise codes.


Standard IBM beep codes.

No beep - Power supply or motherboard failure
1 short - System is ok
2 short - POST error (code displayed on screen)
Repeating short - Motherboard failure
1 long, 1 short - Motherboard failure
1 long, 2 short - Video display adapter failure
1 long, 3 short - Video display adapter error
3 long - Keyboard error


Pheonix beep codes

1-1-3 CMOS memory failure
1-1-4 BIOS failure
1-2-1 System timer error
1-2-2 Motherboard error
1-2-3 Motherboard error
1-3-1 Motherboard error
1-4-1 Motherboard error
1-4-2 Memory error
2-x-x Memory failure (any number of other beeps)
3-1-x Chipset error (any number of other beeps)
3-2-4 Keyboard controller error
3-3-4 Video adapter failure
4-2-4 Expansion card failure
4-3-4 Time of day clock failure
4-4-1 Serial port error
4-4-2 Parallel port error
4-4-3 Math co-processor error
the vga board has failed, its a very common problem in acer laptops, you can get a replacement part from www.acerparts.com im not sure if they ship into us but for europe thats where I get my parts.
my acers vga failed two times, ones within warranty and 12months after that, I have to say that acer products are really bad quality, I'm not sure about the latest models but from what I've seen the vga chipsets have real issues with the motherboards and keep failing over and over again.


I have not looked inside your model but the vga is either integrated into the motherboard = that means the repair will cost the whole motherboard, better to buy a new one.

if your model has a removeable vga like mine does, then you can consider changeing it to a new one. contact acer parts.

One of the covers in the bottom is the memory, one is network and last one I don't remember.
here are the contact details if your acer is out of warranty
http://www.acerparts.com/contact_us.php

The parts for your model are at http://www.acerparts.com/index.php?cPath=561_562_1064

you will have to contact acer parts directly, it may be that the vga is build into the motherboard or then the vga parts are not listed.


Hope this may help;


Regards,
VOTIT


DON'T FORGET TO RATE;


Jul 29, 2008 | Acer Aspire 5570-2758 Notebook

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