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The Computer sometimes doesnt boot up?

It has the power, the CPU is working but there is no screen and no beep.
it it occurs just sometimes. I have changed the RAM and Power but the it didn't solve the problem.

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Do you have any pci device inserted on your motherboard, also check by removing the device, if this also not helps you, clear the BIOS, if this also not helps you , then its the fault of the motherboard, take it to the technician

Posted on Nov 16, 2008

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PC Compaq Presario S5160UK boot problems


From the description you have given, I would suggest that you re-install the operating system(Windows) make sure you save any thing on the computer that you can't live without. (Music, photos and videos). You will need to do a format of the hard drive. As you may have an unknown piece of malware or just a badly corrupted operating system.

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Computer will turn on but will not boot up


Dear,
Did this situation come with any beep sound. Because, most of the time, in this situation; the computer beeps. Here are some codes. Check if any of these condition apply to your system.

No Beeps Short, No power, Bad CPU/MB, Loose Peripherals
One Beep Everything is normal and Computer POSTed fine
Two Beeps POST/CMOS Error
One Long Beep, One Short Beep Motherboard Problem
One Long Beep, Two Short Beeps Video Problem
One Long Beep, Three Short Beeps Video Problem
Three Long Beeps Keyboard Error
Repeated Long Beeps Memory Error
Continuous Hi-Lo Beeps CPU Overheating

best of luck!

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My computer randomly will not power on. It doesnt work more than it does work. It will power on but will not fully boot up, monitor screen is blank and mouse does not power on. Light on front of tower...


Open the cpu cabinet cover then clean motherboard and parts. Reconnect RAM memory.Pull cmos cell from motherboard for 10 minutes then put it back reconnect both connection to harddrive.Make sure motherboard is not ground with cabinet cover. Reconnect pci card if any. Let me know if you need further assistance. Thanks for using FixYa.

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Boot failure, beeps and no display


Hi.
Do this solution first in the motherboard only processor installed need no memory.then power on your PC.if your motherboard no continues beeping.that need replacement of parts specially capacitor
leakage,became big or burn parts.
See beeping code.

Beep Code:
Description of Problem:
No Beeps
Short, No power, Bad CPU/MB, Loose Peripherals
One Beep
Everything is normal and Computer POSTed fine
Two Beeps
POST/CMOS Error
One Long Beep, One Short Beep
Motherboard Problem
One Long Beep, Two Short Beeps
Video Problem
One Long Beep, Three Short Beeps
Video Problem
Three Long Beeps
Keyboard Error
Repeated Long Beeps
Memory Error
Continuous Hi-Lo Beeps
CPU Overheating

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My dv6-1247 cl when i turn on the power it beep 8 times and the screen does not come on help


Yu will need to determine which BIOS you have a see below
The computer beeps several times
If you hear several beeps from the PC speaker, it means that the computer failed its power-on self test (POST) because a problem was detected. The POST is a procedure that tests several components such as power, BIOS, CPU, memory, and video. Only if all those tests pass, the computer will then allow the operating system to load. But if one or more of these tests fail, beeps indicate a problem and the boot process is halted. These errors are a little more difficult to troubleshoot.
To diagnose the problem, listen to the beeps carefully and write down the sequence. Is it one long beep? Is it several short beeps? How many? Once you have the beep sequence documented, you need to find out what it means. What BIOS do you have? When you first turn on the PC, look at the top of the first screen to find out. Common BIOS types are Award, Phoenix, and AMI.
Award:
1-2-2 Indicates a video error has occurred and the BIOS cannot initialize the video screen to display any additional information Any other beeps Most likely a RAM problemYou can find more detailed information about Award error messages on Award's web site.
Phoenix:
1-2-2 Indicates a video error has occurred and the BIOS cannot initialize the video screen to display any additional information 1-2-2-3 BIOS ROM Checksum 1-3-1-1 Test DRAM Refresh 1-3-1-3 Test Keyboard Controller 1-3-4-1 RAM Failure 1-3-4-3 RAM Failure 2-1-2-3 Check ROM Copyright Notice 2-2-3-1 Test for unexpected interrupts 1-3-4-3 RAM FailureYou can find more detailed information about Phoenix error messages on Phoenix's web site.
AMI:
1 beep Refresh failure 2 beeps Parity error 3 beeps Base 64K memory failure 4 beeps Timer not operational 5 beeps Processor error 6 beeps 8042 - gate A20 failure 7 beeps Processor exception interrupt error 8 beeps Display memory read/write failure 9 beeps ROM checksum error 10 beeps CMOS shutdown register read/write error 11 beeps Cache memory badYou can find more detailed information about AMI error messages on AMI's web site.
If you get beep errors, you should try to think what happened right before they started. Did you add a new piece of hardware? If so, it might be faulty or not installed right. Remove it, then try again. If everything is fine without the hardware, try to reinstall and configure the hardware again. If that does not help, try exchanging it and see if that corrects the problem. If the error persists, narrow it down systematically. Remove everything but the CPU, memory, keyboard, and video card, then boot again. Does the error still occur? If not, then add one piece of hardware and try again. Repeat until one new component causes the error and you now know who the culprit is. If yes, then reseat your CPU, memory and video card and try again. If the error still happens, try replacing the CPU, video card and memory one by one to see if one of them is the troublemaker. If that does not help, you could have a bad motherboard. Check the motherboard carefully for any signs of damage. Also check for shorts, a metallic object could have found its way onto the motherboard, or the motherboard is not installed correctly and touches the case somewhere.
Page 1: Computer boot problems
Page 2: This page
Page 3: System hanging after POST
Page 4: POST running OK but Windows not starting

Good luck

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Thanks

Apr 02, 2011 | Computers & Internet

1 Answer

Not sure if it is MB or CPU when i try to turn on computer the only thing that happens is i hear a beeping sound. beep...beep...beep... continually. it wont go to the post, nada. the fans run and i have...


Continous beeps usually mean the motherboard or the power supply, Try another power supply first and see if it will boot, if not the motherboard is faulty, if the prossesor was faulty you would no beeps the fans would run but nothing on the screen. hope this helps.

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When pluged into outlet fans spins and doesnt stop, wont boot


Fan spinning hard is usually a CPU issue.
If you've made any hardware changes to your computer, undo them. This happened to me when I was trying to upgrade my Processor (CPU) and I had the wrong kind.

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Sometimes it turn on but it doesnt boot at all


CPU init is CPU initialisation as you guessed. It should pass extremely quickly however, I'm talking under a second.
The fact that it isn't, or is only passing sometimes, indicates a CPU or Motherboard fault.
Make sure you have the 4 or 8 pin cpu power connector properly plugged into the motherboard.


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Motherboard message LED message is --


Your motherboard has died .
No beep code explains it all .
LED lights and even fans spins only tells me that your getting power to the motherboard , but No beep code is crucial .
Every motherboard will beep once when your first turn on and beep once again before the Opertional System boots up .
Sorry again for your loss ...

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