Laptop beeps 7 times

SOURCE: i have a dell inspiron

Helllo, it seems like your motherboard is dead. What happened last? The best thing to try is plug in an external monitor and see if you can get any kind of display. You can also try what is called a hard reset. Unplug the power cord on the back, and pop take out the battery. Then hold the power button down for thirty seconds. That may fix your problem.

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Doug Lomax

• 56 Answers
• Posted on Aug 24, 2012

SOURCE: I keep getting a beep when I turn the computer on....black screen...and nothing

If the computer is out of warranty, you dont have anything to loose. Have the northbridge and video chips re-flowed. You can do this using a heat gun, but
you have to be very careful not to destroy your board. This is a similar problem that XBOX360 owners were having with the red ring of death. These boards run very hot and over time and many cycles of heating up and cooling off the
chipsets separate from the mainboard and your computer becomes useless.
I dont have a board in front right now but if my memory serves me right place
the board in front of you so the hard drive connections are on the left side of
the board and the CPU socket is facing up. the 2 chips you want to work on
are just to the right of the CPU socket and just above the CPU socket. Be
sure to remove the CPU before you put any heat on these chips. Use circular
motions with the heat gun on HIGH. You may need to get some flux to put around each chip before doing this, but in my case I didnt have to. There was plenty there already. Computer worked for about 6-7 months after my fix and then needed the same repair again. If you want to see this done there are a lot of videos on the XBOX360 being done on youtube so to kinda give you an idea of how to do it. Might not be worth the trouble and you might be better off parting out the machine and just buy another one. Its all up to you, I hope this helps
I just bought a new system

SOURCE: Dell laptop black screen gives intermiitent 7 beeps

This WEB site gives the BEEP codes for the Dell.
http://en.community.dell.com/support-forums/laptop/f/3518/p/19447544/20098900.aspx

SOURCE: Why is my lap top just intermittently beeping with a black screen

DELL BEEP CODES
Beep Codes Beep Code Description Failure Coverage 1 System Board: BIOS ROM failure System Board, covers BIOS corruption or ROM error 2 Memory No Memory / RAM detected 3 Chipset Error (North and South Bridge Chipset DMA/IMR/ Timer Error for Intel platform); Chipset Error System Board Chipset Failure Time-Of-Day Clock test failure. Gate A20 failure Super I/O chip failure Keyboard controller test failure. 4 RAM Read/Write failure Memory failure 5 RTC Power Fail. CMOS battery failure 6 Video BIOS Test Failure Video card / chip failure 7 CPU Cache Test Failure CPU failure 8 LCD LCD failure

Brian Sullivan

• 27725 Answers
• Posted on Dec 09, 2012

SOURCE: 7 loud beeps and a black screen on bootup

WARNING: Before you start troubleshooting remember that you are dealing with electricity that can KILL. http://www.kitchentablecomputers.com/static.php - rules Only work inside the computer case when the power has been switched off and disconnected. Never open the power source. Some of the below steps recommend removing physical parts within the computer. While in the computer it is highly recommend that you be aware of ESD and its potential hazards Remove new hardware If any new HARDWARE has been recently added to the computer, remove that hardware to make sure it is not the cause of your issue. If after removing the new hardware your computer works it's likely the computer is either not compatible with the new hardware or a system setting needs to be changed to work with the new hardware device. Remove any disks or USB devices Remove any disks, CD's, DVD's that are in the computer and if any USB devices (Ipods, drives, phones, etc) are connected disconnect all of them as well. Reboot the computer and see if anything changes. Disconnect external devices. Remove everything from the back of the computer except the power cable. Turn on the computer and see if it beeps normally. If the computer has never beeped keep the monitor or display connected to see if any change occurs. Check all fans Make sure all fans are running in the computer. If a fan has failed (especially the heat sink fan for theCPU) your computer could be overheating or detecting the fan failure causing the computer not to boot. Check all cables Verify that all the cables are properly connected at that there are no loose cables by firmly pressing in each cable. All disk drives should have a data cable and power cable connected to them. Your power supply should have at least one cable going to the motherboard. Many motherboards may also have additional cables connected to them to supply power to the fans. Disconnect all expansion cards If the above recommendations still have not resolved the irregular POST, disconnect the riser board (if applicable) and each of theexpansion cards. If this resolves the issue or allows the computer to POST connect one card at a time until you determine what card is causing the issue. Disconnect all drives If you were unable to determine by the beep code what is failing or do not have a beep code disconnect theIDE, SATA ,SCSI or other data cables from the CD-ROM ,Hard Drive and Floppy Drive from the Motherboard. If this resolves your irregular POST or generates error messages re-connect each device until you determine what device or cable is causing the issue. In some situations it can also be a loose cable connection that causes the issue. Remove the RAM If you continue to to receive the same problem with all the above hardware removed, disconnect the RAM from the Motherboard and turn on the computer. If the computer has a different beep code or if your computer was not beeping and is now beeping turn off your computer and try the below suggestions. Making sure to turn off the computer each time you're adding and removing the memory and then turning the computer back on to see if the suggestion resolves the issue. Re-insert the memory into the same slot. If you have more than one stick of memory remove all but one stick of memory, try rotating through each stick. Try one stick of memory in each slot. If you're able to get the computer to boot with one or more of the sticks of memory it's likely you're dealing with some bad memory. Try to identify what stick of memory is bad and replace it. If you're able to get memory to work in one slot but not another slot. You're motherboard is defective you can either workaround the issue by running the memory in a different slot or replace the motherboard. Power cycle the computer In some situations a computer may have power related issues often caused by either the power supply or the motherboard. To help determine if this is the cause of your issue try turning the computer on, off, and back on as fast as possible, making sure the computer power light goes on and off each time. In some situations you may be able to temporarily get the computer to boot. This should only be used as a temporary workaround if you're able to get this to work. Often this is good for users who may have not done a backup and need to get the computer up one more time to copy files before starting to replace hardware. Disconnect and reconnect the CPU For users who are more comfortable working with the inside of their computer or who have built their computer one last recommendation before assuming hardware is bad is to reseat the CPU by removing it and putting it back into the computer. Bad motherboard, CPU, RAM, or power supply If after doing all of the above recommendations you continue to have the same issue unfortunately it is likely that you have badMotherboard, PSU, CPU, orRAM. The next step would be either to replace these components or have the computer serviced. If you plan on doing the repairs yourself or you are a repair shop it is suggested that you replace the Motherboard first, RAM, CPU, and then power supply in that order or try swappable parts from other computers. Hope this helps. b>