Question about Computers & Internet
I've been trying to figure this one out for awhile now.
Ok here is the issue.
We are trying to get the computer to boot up, at least into Bios, but there is no Display(Monitor is black), Keyboard seems to have activity but unable to use(Numlock lock, cap lock etc does not work, but I Know that the motherboard knows It's there because when I unplug and plug the PC back in all three lights on the Keyboard flash once(The Numb Lock, Cap Lock and Scroll Lock lights).
Also, I Used a wireless Keyboard and the lights on it comes on, and every time I hit a key It's action light flashes(Which is normal). The Display does not come on at all, We tried the onboard video, A PCI-E Card and a PCI Card, nothing.
The DVD Drive seems to work, Hard Drive works, Mouse and Keyboard seems to work, at lease they get power, All fans work, all lights work, I Tried another monitor(same problem).
The Computer does one short beep. but that means nothing, I Took out the memory, unhooked the Harddrive and still it does one short beep.
I Resetted the bios by removing the Motherboard Jumper and placing it back on, I Tried a different battery, no Luck.
IT Doesn't seem like it's the motherboard, The only thing we can think of is not enough power?
We rechecked everything, everything seems ok.
Could a Bootup disk solve this Issue?
laxman, that's not really a solution?
In any case, it can't be an OS problem if this issue occurs during BIOS load.
From the time the power button is hit, there seems to be nothing going through to Video and Keyboard.
I've found this to be an intermittent problem, but almost always occuring after a crash like power failure etc.
This stinks of motherboard problems, but it would be interesting to see if anybody here manages to replace their motherboard(pref same model) to see if the problem still occurs.
I thought it might be gfx card as well, but it can't be, especially if it occurs whether you use onboard or periph.
any help welcome.
Very interesting...Might try the following...
- Video. Yes, almost garuntee that it is either the video card/onboard or the cable. Look at the cable and cable connectors and see if one of the pins has been shoved in. This is common. Often, one will replace the cable and still have the problem because a pin has been shoved in on the mother board.
- Power. Remove everything from your computer except the keyboard and the monitor (yes, even the mouse) to eliminate any power drain issues. If you can, remove the DVD drive (unplug power and data bus cable).
- BIOS. One beep is good. You should be able to get into the BIOS setup no mater what other problems you are having. The BIOS uses a generic text, video and keyboard driver. If you aren't able to see ANYTHING after the beep then it is definately the route from the motherboard through the video card or onboard video, through the cable to the screen. You seem to be going through the right steps to debug but just haven't found it yet because it is something that you have dismissed as working...like the pins on the video connector. Go through your path again, this time look at anything that you have assumed that was working and suspect it as the issue.
Posted on Jan 08, 2009
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Posted on Jan 02, 2017
try to reinstall the OS..if it doesn't work then there would be a problem with ur motherboard becaouseof failure of IC's. So contact the service men.
Posted on Sep 27, 2008
Hmm it seems to be problem with Power Supply, but still if you can give a try connecting your system into other socket may be which is properly grounded one.
if the above didn't fix your issue, i would suggest you to disassemble and then assemble it again. try changing the data cable as well.. Last option left is if you have a spare SMTP checkout with that.
Let me know if it works..!!
Posted on Mar 13, 2009
Tips for a great answer:
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Basic LCD monitor and TV troubleshooting guide:
Failed TV and Monitors pictures: http://s807.photobucket.com/albums/yy352/budm/
Capacitors kit: http://lcdalternatives.auctivacommerce.com/ he can make you a set of caps for you.
Or www.digikey.com just make sure to use caps with low ESR, 105c, high ripple current, long life rating such as PANASONIC FM or FC series.
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