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Computer Does not Boot correctly, Monitor is Black.

\015 I've been trying to figure this one out for awhile now.\015\012\015\012Ok here is the issue.\015\012\015\012We are trying to get the computer to boot up, at least\015\012into Bios, but there is no Display(Monitor is black), Keyboard\015\012seems to have activity but unable to use(Numlock lock, cap lock\015\012etc does not work, but I Know that the motherboard knows\015\012It's there because when I unplug and plug the PC back\015\012in all three lights on the Keyboard flash once(The Numb Lock, Cap Lock\015\012and Scroll Lock lights).\015\012\015\012Also, I Used a wireless Keyboard and the lights on it comes on, and\015\012every time I hit a key It's action light flashes(Which is normal).\015\012The Display does not come on at all, We tried the onboard video, A\015\012PCI-E Card and a PCI Card, nothing.\015\012\015\012The DVD Drive seems to work, Hard Drive works, Mouse and Keyboard\015\012seems to work, at lease they get power, All fans work, all lights\015\012work, I Tried another monitor(same problem).\015\012\015\012The Computer does one short beep.\015\012but that means nothing, I Took out the memory, unhooked\015\012the Harddrive and still it does one short beep.\015\012\015\012I Resetted the bios by removing the Motherboard Jumper and placing\015\012it back on, I Tried a different battery, no Luck.\015\012\015\012IT Doesn't seem like it's the motherboard, The only thing we can think of\015\012is not enough power?\015\012\015\012We rechecked everything, everything seems ok.\015\012\015\012Could a Bootup disk solve this Issue?\015\012\015\012Thank you.\015\012\015\012\015\012\015\012hai i have a ibm system if some times power on a system they are in idle\015

Answers :

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.\015\012
\015\012if 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.. \015\012Last option left is if you have a spare SMTP checkout with that.\015\012
\015\012Let me know if it works..!!
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