Replacement Dell Inspiron F7970 AC Adapter can extend the life of your laptop for two years. If you still get excellent use out of your current laptop, there’s no need to spend thousands replacing the machine when you can replace the Dell AC Adapter for less than .
Chances are you will run into this problem if your Dell laptop is more than 3 years ancient. When you do, the most likely culprit is a terrible Dell ac adapter, such as Dell Inspiron F7970 AC Adapter. It has happened on every one of my last 5 computers. Manufactures are notorious for using cheap laptop ac adapter to reduce production costs, but the excellent news is it is amazingly simple to fix yourself. Once you find the right unit, the repair takes minutes and you’ll spend a fraction of the price a technician might charge.
Here is the guide to replace Dell Inspiron F7970 AC Adapter:
Disconnect all power and external peripherals from your computer and remove the cover or side panels. Don’t be worried, it only looks intimidating in there. The Dell Inspiron F7970 AC Adapter is located in a corner. It is probably the largest component inside the computer and looks like a metal box, usually with a fan built in. The power cord plugs into it and there are various cables from the other components plugged into the opposite end. It is very simple to locate.
The box should have some labeling on it that will tell you the power rating. The Dell Inspiron F7970 AC Adapter may be two ratings, a peak wattage and maximum sustained wattage. Focus on the maximum as this is the number that is most vital. It will usually be between 300 and 400 watts. It is always advisable to buy excess capacity here. You’ll spend a few more bucks, but the component will last longer.
Also, if your computer has a high end graphics card or other high end components, it may have a Dell Inspiron F7970 AC Adapter with a higher rating than stated above. If you’ve upgraded these components in the past and neglected to upgrade the Dell AC Adapter, this could have caused the failure and you should look at your upgrade documentation to determine how much additional capacity you should buy to properly power those components.

Dell Inspiron F7970 AC Adapter Features/Specifications : http://www.usadapter.com/Laptop-Dell-Adapter/Inspiron-F7970.html
Input: AC100-240V (worldwide use)
Output: DC19.5V 3.34A
Power: 65W

Connecter size:
Internal Diameter: 5.0mm
External Diameter: 7.4mm
With central pin inside

Item Includes: AC Adapter and Power Cord.

Groundbreaking new Replacement Product, works as genuine parts, 100% OEM Compatible!!

Dell Inspiron F7970 AC Adapter Warranty
12 months warranty

See more laptop ac adapter information on: http://www.usadapter.com

In an increasingly wired environment, laptops are the best tool to stay connected to those you like while on the go. But as you know groundbreaking new laptops ca cost a pretty penny so cheap used laptops are the best way to go about staying connected in this digital world while not breaking the bank. But you still have to make sure your used laptop has the right network card and peripherals to be able to connect as you intend. So, let us have a look at the wireless technology in more detail to learn how to go about staying connecting while on the road.

Receiving and sending emails, browsing the web, sharing file, etc., if you want to do all this you will need a wireless Internet connection. More and more places offer wireless internet, either for free or for a fee. You have to mak sure that the used cheap laptop you buy comes equipped with an internal wireless card if you want to delight in wireless Internet. Thankfully, nowadays virtually all used laptops have one as wireless cards became well loved a few years ago already so unless you buy a really ancient used laptop you should be excellent to go. Know that in the event your used laptop computer doesn’t have one you can still buy an external wireless card, provided your second hand laptop has a slot for it.

If within the scope of your travels you regularly go to places that don4t readily provide Wi-Fi hot spots, know that you can fit your usd laptop with a WWAN card that uses cell phone networks to relay Internet. This can be very useful in remote areas providing the cell phone operator has a excellent coverage but prices are still a bit high for thsi technology and the connection and transfer speed cannot yet match those of high speed Internet, although things are constantly improving in this respect.

Lastly, some used laptops are equipped with bluetooth connectivity, which enables the second hand laptop to connect to a variety of peripherals like printers, mobile phones, PDA and the like provided they are within reasonable distance of your used laptop pc.

As for the standard equipment to phisically connect to the Internet like modem card, ethernet and the likes, nowadays all used laptops have what it takes. It is now only a matter of chosing the used laptop filling your needs as a traveller and you will be on your way to on-the-glide connectivity.

How To Ensure Total Security On Acer Laptops

Acer laptops are one of the most widely used laptops in the world. But, like every other computer system, you need to have total protection so that your laptop’s data is not hacked by anyone. Here are few steps that will ensure total security on your Acer laptops:
1. You should disable automatic connectivity to any wireless network to ensure that your laptop does not connect to any perilous network. You can also set administrator id and password to connect to the wireless network. You should also enable WPA2 to ensure utmost security.
2. Activate the default firewall that came with your Windows XP or Vista. Firewall will block entry of untrustworthy application and prompt you if you want to allow or block the application. There are plenty of computer security application manufacturing companies like McAfee, Symantec and AVG that offer firewall with their computer security suite.
3. It is highly recommendable to install antivirus and antispyware on Acer laptops to ensure there is total security from viruses, spyware and other malicious programs. Make sure you regularly update these programs manually or automatically.
4. Do not click on too excellent to be right advertisements, do not download attachments from emails sent by unknown user and do not download software from unknown websites. Do not login with your username and password of your online banking or email accounts on any other unknown websites. You can become a victim of identity theft as in these ways; hackers may gain access to your bank accounts and email accounts easily if you do not take proper security measures.
5. Make sure you use a powerful web browser such as Mozilla Firefox and enable pop-up blocker to ensure you have safe browsing experience.
6. Encryption is very excellent way to protect your files from being accessed by anyone. You can do so by right clicking on any file or folder that you want to encrypt and then click on Properties> Advanced button>Encrypt contents to secure data.
7. You can also make login name and password on your Windows XP or Vista PC. When you do this, you can access the desktop of your computer only after you enter the right administrator password.
8. Make use of screen guard on you Acer laptops to ensure that nobody around you can see what you are viewing on your laptop.
9. Do not leave your laptop unattended inside the car or at any place. Always make sure that you carry your Acer notebook wherever you go.
10. Laptop locks are one of the best ways to fasten your laptop tightly to a strong table so that nobody can rob your laptop when you are away. Do not use cheap laptop locks because cheap ones can be easily broken by means of pliers.
11. Install laptop tracing application on your system so that you get accurate details about the location of the laptop incase your laptop is stolen. 
12. Acer laptops come with fingerprint recognition security which means no one can access your notebook except you. It will only accept you after you place your finger on the finger print recognition sensor. Most Acer laptops come with an in-built webcam; you can install an additional face recognition application for more security.

im looking for a laptop that is inexpensive. . . im looking for the following: a dual core processer, between 40-60 gigs of hardrive. at least a gig of ram(memory), dvd/cd burner, and windows XP(home or office) operating sytem, please contact me if you are interested or know someone who is and we will talk about a price range,,, thank you

Im in the market for a CHEAP used laptop. I would use it mainly for MSN messenger (video and voice) and some internet browsing. What are the RECOMMENDED (not minimum) specs i would need to run these programs honestly efficiently. . . RAM, processor, operating system etc etc. Brands and online stores that sell would also b a huge help. Thanks!