jairaj, what did you do before the no signal message appeared apart from restarting your computer? Did you perhaps disconnect the video cable and reconnect it to the onboard video port which you should have disabled in bios when you upgraded? In simpler terms, is the monitor cable now plugged into the port with the majority of the connectors or is it plugged into the port that is on its own on an expansion slot?

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Rimfire, what you said might be true for the original problem, but you must have missed response #2. The monitor is now saying 'No input signal'.

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Rimfire, Ooops, responded too fast without reading your whole post. Right you are, he has gone from bad to worse. But as for the blinking cursor in the upper left hand corner, I have often fixed that using the 'Reset configuration' option in the bios.

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Rimfire, I feel I should correct a wrong impression that you have about the video modes. The modes don't change from VGA to svga. The initial mode is alphanumric and windows switches to graphics mode. In alphanumeric mode alphanumeric characters are sent to the video card to be displayed. In graphics mode bytes of data are sent to the video card to indicate the color/brightness for each pixel on the screen.

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Ham, I haven't given that too much thought. But now that you bring it up, yes it is possible that the card begins in alphanumeric mode. The simplified graphic displayed by bios (eg energy star) indicates that alphanumeric is a misnomer . Yes this is limited to four colours. The card soon switches to vga mode. The windows98 splash screen which is displayed even on a floppy disk boot clearly is not alphanumeric. At the end of booting windows, the graphic card switches to its native mode when the drivers are loaded. This does not occur when booting to safe mode, hence the 16 colours. Windows XP seems to do things a little different. It changes to SVGA mode with 256 colours until the video drivers are loaded. The boot process is incredibly complex and I for one will never bother to try and understand all of it.

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hi rimfire,ham30 THANKZ FOR THE SUPPORT, i am not able to get on to the safe mode. the screen is blank and i keep pressing f8 on start up. i think i had dissabled the vga in the BIOS.

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Jairaj, do you get the normal Initial POST beep when you power on? If you aren't getting the beep, then the system is completely dead. The power supply, motherboard and CPU have to be working properly to get the initial POST beep and display. The usual procedure to troubleshoot a completely dead PC is to strip it down to the basics. Disconnect all the drives (power and signal). Remove all the cards except the video card and RAM. You can also disconnect the keyboard and mouse. Power up and if you do not get a beep remove the RAM. If you still do not get a beep remove the video card. If still no beep, either the power supply, motherboard or CPU is defective. If at any point in the above procedure you get multiple beeps, that's a good sign. That means the motherboard and CPU are working. The beeps are a code that give an indication of the problem (reference www.bioscentral.com). It is 'usually' a RAM or video card problem.

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If you get the initial POST beep, check Rimfire's response #7. Make sure the monitor is plugged in correctly and has no bent pins on the connector

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"i think i had dissabled the vga in the BIOS" There are a couple of settings in the Bios that can kill your system. If you changed one of those, a simple bios reset 'should' correct it. There will be a jumper on the motherboard to reset the bios. If you can't locate it, you can remove the motherboard battery for a few minutes. If you have two video adapters, you might have to cable the monitor to the other video adapter to get a display.

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hi ham30, i do get the POST beeps and i will try removing the mother board battry and see if that resolves the problem. thankkyou for the great help.

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hi, good news i removed the batry and after sometome i fitted it back and now the screen is responding but i still get the blinking cursor on the screen left hand top connor. i tryrd pressing f8 but no use i cant get on to safe mode any help?????

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OK, we are back to square one. " the system was working fine. i recently recieved a reload disk from time pc support cetre. i wanted to reset my pc back to factory setting with the reload disk. the problem is after i reloaded and restarted the system the tft monitor is blank and i get a blinking underscore at the left hand top connor of the screen. please help..... to resolve the problem." Jairaj, It seems that the 'restore' did not work and messed things up. I think you should contact Time's PC support. I'm sure that they will have a better idea of what went wrong then I would.

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Morning jairaj, ham, Does anything display on the screen before you get the blinking cursor? Hmm, blinking cursor, sound like a profanity!

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I'm having the same problem with an older IBM Aptiva. I installed a wireless card into a perfectly good and functioning computer, but upon turning it on I get an elongated post beam, and then nothing but the blinking cursor in the top left corner. I have held down the f2 key and stumbled around trying to change settings and defaults to no avail. I'm curious as to what I'm entering. does f2 get you into bios, or is it f8? It seems as if this old computer just needs a little nudge in the right direction. Can anyone help? P.S. all internal pieces seemed to be seated properly.

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