27 Jul
CPU & Monitor start but no display on monitor + CPU red light goes off & green light of power stays on. Help !
When i turn on my CPU the both the lights are on : green one and red one. But the red light goes off immediately in 2-3 seconds after that.Keyboard does not respond to any keys and there are no lights on keyboard also. Mouse pointer also no lights.Monitor doesn’t respond & looks like as no CPU is running it and no BEEP sound also. Only the green monitor light keeps blinking but no display on monitor.CD Rom drive works properly.
FYI, recently moved the PC to a new place , so would the new power plug connection affected this ? ( Wondering)
What is the problem & what is the solution? Kindly help me figure it out. Many Thanks.
Posted by D_S_ on 27.07.09 at 1:23 pm
Hiya Prashant B,
You are describing a fatal hardware error. When the computer was moved it was impacted or hit and somthing moved inside. This is not really a MONITOR question, but I wll give you the basic fixes that I use for customers in similar situations. Keep in mind that a computer is a complex piece of technology and I can’t see it nor di I have any clue what it has in it or the make model etc..
Follow these steps one at a time and try booting after each step is completed.
1. Power off, remove the monitor cable at both ends and inspect the pins for bends or crossovers. You should use small needle nose pliers to straighten or bend any pins that look wrong. If they all look good, open the computer case, unscrew the display adapter and remove it (unless it is built onto the motherboard), inspect it for any damage or burn marks. If it looks OK, replace it and make sure the bottom edge of the adapter is exactly parallel with the plastic edge of the slot. If it is an AGP card, make sure the little plastic lock is in place. Screw it down and attach the monitor, then reboot.
2. Power off and use a glove or piece of cloth to remove the memory modules. Inspect for damage or burn marks and if it all looks OK, reinsert them making sure they are exactly parallel with the slots and reboot. If there is no change and you have enough empty slots, power down again and move the modules to different matching slots. If you have 2 pieces in the first slot of each bank, move them to the second slot in each bank, reboot.
3. Power up and look at the CPU fan, is it turning? Is it going kind of slow? Is there dust in the blades of the heat sink under the fan? These things will cause overheating would fit your description. If the computer has been running for longer then a few minutes while overheating it is possible that the processor chip is damaged (If you get to the end of this list with no positive results, consider a replacement processor and or motherboard). Replace the fan if it has malfunctioned and clean any dust clogged heat sink blades with a can of air or a toothpick, reboot.
4. Power off and remove all peripheral cards (modems, display, audio and network), then inspect the motherboard for damage or burn marks. Replace each card one at a time and reboot after each replacement. Start with the display adapter, and make sure they are each seated properly and exactly parallel to the plastic slot edge.
That’s my quick and simple method. Hopefully you never get past step 2, but if you do everything above and the problem persists then it may be time to take it to a shop or get a new computer.
I hope this helps,
GOOD LUCK!!