Question about HP Compaq Presario SR1720NX (EL435AA) PC Desktop

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Stuck on Compaq Screen and keyboard dead

Left computer on overnight. Came back to frozen screen...pointer that wouldn't move. Couldn't hard reboot. Unplugged and replugged. Now it is stuck on the Compaq screen. Can't reboot or get into bios because keyboard not responding now. When I unplug keyboard and plug back in, lights flash once on keyboard and then it goes off again. This computer is one year old and I've never had a problem with it before.

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  • ozfamily4 Dec 27, 2008

    Took it to geeksquad and they said the motherboard was out....but they weren't for sure about it. I think it's probably not worth the parts to have it repaired. thanks for your response.

  • Anonymous May 04, 2009

    Same exact problem here with a Compaq, turned out to be a bad motherboard. (Someone threw it out, said it sat outside all winter, lol)
    Still salvaged 3000AMD cpu, HD, DVD burner, PS, Ram, and a nice case, heh.

  • jehandad kamal May 11, 2010

    is it booting up from the cd

  • me38 May 11, 2010

    Did you have any storms or powerr surges that you know of?

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  • 948 Answers

I would take the cover off and reseat the memory, video card, and processor. Make sure your fan(s) are working too, and blow any dust out of it if you see a lot of build up.

Posted on Dec 26, 2008

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Play dota


test this steps and fix it. God bless you
1. The Mouse o There are two examples of a computer freezing up. One is when a single program on the computer is frozen, while the other is when the entire system freezes up. To determine which type of problem a computer is experiencing, attempt to move the mouse on the screen. If the mouse pointer is visible and moves, the issue is with a single program. To determine which program is frozen, bring up the Windows Task Manager. This can be done by right clicking a blank area of the taskbar and selecting "Task Manager," or by pressing the keyboard shortcut "Ctrl+Alt+Delete" and selecting "Task Manager". The program or programs that are frozen will show as "Not Responding" on the Applications tab of the Task Manager. Click the frozen program and click "End Task" to close it. Visit the program's website for specific troubleshooting tips if the program continues to freeze. If the mouse pointer is stationary on the computer screen, the entire system is frozen.
Unfreezing a Frozen Computer o If the entire system freezes up, it will need to be rebooted. To do so, hold down the "Ctrl" and "Alt" keys. While holding both keys down, press the "Delete" key twice. This should shut down the system and automatically restart it. If the computer does not respond, try the keyboard shortcut once more. If it remains frozen and does not reboot, you will need to perform a hard shut down. This simply means pressing and holding down the power button until the computer completely shuts down. Once it has shut down, leave it off for a few minutes and then turn the power on once more.
Continuous Freezing o A frozen computer might be a one-time occurrence, or it could be the sign of a more serious problem. If the computer continues to freeze up, there are several items that should be checked out. The first step to take is looking at any recently installed software. Programs such as freeware or shareware often contain malware that can damage the system. Even reputable software can contain a damaged file. Uninstall recently added programs and determine if that was the cause of the computer freezing up. To uninstall a program, go to the Control Panel from the Start Menu. Select "Add/Remove Programs" in Windows XP or earlier, or "Programs and Features" in Windows Vista. In the list of installed programs, select the one to be removed and click "Uninstall." Follow any prompts and restart the computer when the process is complete. Next, update and run both the antivirus program and spyware removal program installed on the computer, or use the link provided in resources. Check the Windows website and download any updates.
System Tools Finally, you will want to check the available space on the computer's hard drive and use the built-in error checking and cleaning tools. Go to "My Computer," right click "Local Disk (C:)" and click "Properties." On the "General" tab, make sure there is sufficient free space. The "Disk Cleanup" tool will free more space by deleting unnecessary files. Click the "Disk Cleanup" button to run the tool. On the "Tools" tab there are more tools that can solve the problems causing a computer to freeze up. The Error Checking Tool finds and corrects hard disk errors and the Defragmentation tool will reorganize system files, helping the computer run better.

Jul 24, 2013 | HP PC Desktops

1 Answer

How can i unlock my keyboard


Recognize that you have a locked keyboard.

If your PC computer is not responding to keystrokes or is responding very slowly, you could have a locked keyboard.


Use your mouse to move the pointer over the "Start" button.

Use the left-click button to bring up the "Start" pop-up menu.


Position the pointer over "Settings" and use the left-click button to select. T

hen select "Control Panel." On some versions of PC operating systems, you can select "Control Panel" directly from the "Start" menu.


Select "Accessibility Options" to bring up another menu, then select "Keyboard."

You'll see three options that have check boxes.


Make sure each check box does not have a check mark in it.

The three options are "StickeyKeys," "FilterKeys" and "ToggleKeys."

Note that these options can become checked if the keyboard operator has repeatedly depressed the "Shift" key in rapid succession--or if the "Shift" key is held down for longer than eight seconds.


If the keyboard is still not responding, the problem could be that the computer has lost communication with the keyboard.

Turn off the computer.


Disconnect the power supply.

Remove and then reconnect the keyboard cable, then reconnect the power supply.


Turn the computer on.

This will reboot the computer, allowing it to recognize the keyboard.


hope this helps



Oct 03, 2012 | eMachines PC Desktops

1 Answer

L100 is stuck on the startup menu (black and white screen)Not ready my keyboard so cany reboot


What Startup Menu? Exactly what is on the screen? Has the computer completely booted to your Windows Desktop so that you see your icons and the Start Menu at the bottom left portion of the screen? if so why are you trying to use the keyboard? I think you should be using your mouse to point an click on something, then use the keyboard if needed.

Maybe your keyboard has gone bad and needs to be replaced. What type of keyboard connection do you have PS2 (serial) or USB? A USB keyboard has the square flat end that plugs into the computer, it can be pulled out and plugged back into the computer anytime because it is Plug and Play. The PS2 (serial) keyboard has a round end that plugs into the purple port in the computer. IT IS NOT PLUG AND PLAY. If you unplug it while the computer is on, your computer will freeze and not recognize the keyboard.You have to reboot anytime you unplug the PS2 (serial) type of keyboard.

Anyway, if your keyboard is frozen then maybe a virus or infection has hijacked it. Try booting into Safe Mode and see if it works.

Go to www.google.com and in the search box type:"download.cnet.com" (without the quotes). Click the link to goto the site and look on the left side when the site opens up and you will see agray area that says FIND SOFTWARE. In the white search box under FindSoftware type: "Virtual Keyboard" (without the quotes) and click themirror to search. When the search results come back look for FREE VIRTUALKEYBOARD. Download and Install it. It's totally FREE. Alsouncheck anything that pops up other than the license agreement during thedownload and installation. You only want the Free Keyboard and not theother junk.

You can use it to solve your keyboard problem. Just open up whatever it is youwant to type on such as the web address in an browser, a word document, etc.,then open the Free Virtual Keyboard and it will sit on top of whatever you weredoing. You can move it around so that it is not in your way also.

Apr 18, 2012 | Acer Aspire L100 PC Desktop

1 Answer

I have an old Compaq Presario 6420nx (6000) This happened after updating to a XFX 256 graphics AGP card, I installed all drivers and updated bios. After rebooting , no video,mouse or keyboard working. I...


Hi there,

If your computer works fine with an onboard video, it is possible that your motherboard is not getting much power. The agp video card gets power from the motherboard. I suggest using a different power supply.

Jun 01, 2011 | PC Desktops

1 Answer

Yesterday i was playing warhammer online and all was fine until my whole computer just froze and my screen was stuck on a picture of my character on his horse jumping in the air. I tried ctrl, alt, delete...


The blue screen that you couldn't read the words on is called "the blue screen of death"..
If you're already stuck, no one will probably be able to lead you through this. Your best hope is that you have some kind of warranty still available that may cover it.... Otherwise, you're gonna need to call around for someone to try to repair it. Pretty much give them what you wrote as your question, word for word, and they should know if they can help. Chances of ever using it again are about 50-50. .. Sorry - good luck.

Aug 09, 2010 | Acer PC Desktops

1 Answer

Hp invent screen frozen


If the F8 key will not work upon turning this computer on the computer has a virus. A reboot CD will be needed which will correct this problem
Good Reboot disc can be purchased on Ebay from this seller.....

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=270517181851&ssPageName=STRK:MEWNX:IT

Ask for STEVE by name. He will respond quickly with questions pertaining your computer

I have purchased a Vista & a XP reboot disc from hime which did the trick. I had the same problem as you do

Jul 27, 2010 | HP PC Desktops

1 Answer

When I use my restore dvd, everything goes well until it's time to name the computer. I can either type in a name and hit next or hit skip and the system just sits there with the choices greyed out. I can...


Very strange, when doing the system restore, make sure every single thing is plugged out of the back of your pc, only leave a keyboard and mouse, monitor and power . make sure the cd is ncie and clean and try again. but make sure every thing is plugged out

Dec 02, 2009 | E-Machines eMachines Desktop PC

1 Answer

Pointer locks up on the desk top after a power outage


Tried a different mouse? Maybe the power outage fried it. pc2 mouse? If it the wirring is fried or the mother board for the mouse is fried then you could purchase a USB mouse if you have an available port.  Finally download the mouse driver and reload it first.   Any more questions please ask. Thanks
http://h10025.www1.hp.com/ewfrf/wc/product?product=472140&lc=en&cc=us&dlc=en〈=en&cc=us

Jan 19, 2009 | HP Compaq Presario SR1500NX (PX786AA) PC...

1 Answer

Cursor stuck in middle of screen


If you are using an external mouse, unplug it and see if it will go with the pad.If it works with the pad then its the exteranal mouse.
If you are using the pad you may have to replace the pad or recalibrate it using the pointer device, you can use the tab key to go through to the start menu then use the arrow keys to go to control panel.
Hope this helps

Nov 28, 2007 | Compaq Presario 5000 PC Desktop

1 Answer

Frozen during boot-up, keyboard still works


Sounds like the PC is running into a hardware failure and the Compaq splash screen is probably hiding some additional information. It?s been a long time since I've owned a Compaq, however, what you need to do first is eliminate the Compaq screen to show us whatever boot details it may be hiding. I seem to recall on my old Compaq (and most Dells) I had to disable the Compaq screen in the BIOS settings. Hitting the F10 key as soon as the Compaq screen appears I believe will get you into the BIOS program, however, be warned if you change anything in there by accident you will be causing yourself a world of trouble. After you get into there you want to look for the Boot selection of the menu. In there somewhere will be a setting referring to something similar to ?reveal boot details? or hide splash or Compaq screen?. If it isn?t obvious let me know, I?ll have access to an older Compaq with a similar BIOS and can give you more details. If you are able to disable the splash screen reboot the PC and watch for errors. Based on the age of the machine and past history I suspect you?ll find a boot disk or read error.

Nov 28, 2006 | Compaq Presario 5716 PC Desktop

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