Tip & How-To about Computers & Internet
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.
Posted by Scott P on
May 30, 2011 | Microsoft Windows XP Professional
Jul 04, 2008 | Acer Aspire 5100 Notebook
Feb 24, 2011 | ASUS M2N4-SLI Motherboard
Jul 29, 2008 | Acer Aspire 5570-2758 Notebook
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