Top 20 HP Compaq 6720s Notebook Questions & Answers

I suggest your battery has outlived it's usefulness. Perhaps you can get an even better one from an internet retail place. I've bought larger ones for various laptops and never had one fail prematurely.

First, right-click on the desktop where there are no icons and choose Display settings, may be in advanced settings, but look for supported screen resolutions. If you pick one that is not supported, doing nothing when the screen goes wonky will automatically cause it to revert to what it was before you changed it. One of the settings there should work for your screen. If none work, go to your device manager and update the drivers for the display.

great question, all HP manuals cover this, for sure older not the new cheap one with no real manual of any use. yours is old and has great books,. here is an echo of the manual. see see all pages,searched as RTC its on page 82, found this googling for 1second, work. using the word Manual added to model it is own of the 37 screw hard job, coin cell. bottom ON WRONG SIDE OF MOBO' 16 steps of No fun.

• CLICK INSERT BUTTON
• GO TO SYMBOL
• CHOOSE MORE SYMBOL
• SCROLL DOWN THE KEY
• CHOOSE CHARACTER CODE: 20B1
• THEN INSERT IT

Hey; Start your computer and right after the hp logo, keep pressing the F8 button until you see a large list of options. Select "USE LAST GOOD KNOWN CONFIGURATION" and press enter. Let windows load and it should work just fine.

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The quick specs from HP does not show a volume control. Most laptops are designed this way. All volume controls will be located on screen unless you have touch lights across the top of the keyboard, which in that case there would be 3 speaker icons (one is mute, and the others are volume Up/Down).

HDMI cable

1.Problem with battery of laptop (like in cell phone, phone show 100% battery but while we make call it show 0%).You can check voltage of battery

Update the video drivers to latest version and restart

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Computer does not boot up The problem maybe the RAM, it is faulty or just needs reseating to make proper electrical contact. Reseat the RAM and then boot up your laptop. If it still does not boot up then remove the RAM module/s and take them to your friendly computer repair shop and get them to test the RAM for you. Just like you sometimes need a mechanic to repair your car, sometimes you do need a technician to diagnose and identify the fault or faults on your computer. Not only does a good service technican have the experience to deal with this type of problem, they also have the equipment that allows them to look at things the average computer user can't see, and he has a collection of replacement parts that can be used to quickly test individual components on your computer.

Does it display bios?

If you have a virus program installed, it ismost likely is running a scan on your hard disk. It can slow down your computerespecially if you have a large hard drive. To make your computer (hard disk) lean and mean, uninstall any programs you donot use.Also you need to maintain your hard disk by running Disk Cleanup this willremove old temp files and old compressed files etc. This will reduce the number of files the virus scanner has to scan. Plusrun Defrag. this makes your files contiguous so the system can access filesoff the hard drive quicker because it does not work as hard.Disk Cleanup and Defrag should carried out at leastonce a month.

Why not? What is happening? Is the wireless turned on? Are you connected to the router? Do you know the password if the network is secured? Has the wifi worked before? There are too many variables that could cause the wifi to not work and you gave us no info as to what is happening.Maybe you don't have your wireless turned on. Look onboth sides and in front for the Wireless Switch and turn it on.Also once the wireless switch is turned on there are keystrokes that can togglethe wireless on or off. Normally you would Press and Hold the FN functionkey located at the lower left of the keyboard, then hit the correct F1 thru F12key that toggles the wireless. The correct F1 thru F12 key to hit willhave the wireless signal icon )))) on it. Or it might have the icon of a towerwith the wireless signal icon )))). Normally the screen will displayWireless On or Wireless Off when you toggle the wireless.

1) Turn off computer 2) Disconnect AC adapter 3) Remove battery pack, and remove the laptops keyboard 4) Disconnect RTC (Real Time Clock) battery (located underneath the keyboard, the red/white wire) 5) Leave off for fifteen minutes 6) Reconnect the RTC battery and reassemble the laptop 7) Reconnect AC adapter (DO NOT REINSERT THE MAIN LAPTOP BATTERY AT THIS TIME!) 8) Turn on the computer and enter the BIOS by pressing F10 9) Set the new BIOS password and save all settings. 10) Turn off the laptop and reinsert the battery Hope this helps ...Lee

The rechargeable battery may need to be replaced, or the charger is defective.

try to unplugging it and plug it back in this sometimes works

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