I recently put together a computer for myself. I've done this before so I have a pretty good understanding of how to do it. After putting everything together I tried booting, which the computer did until the windows login screen. At which point the screen went blank and said "no signal." I initially thought it was because of the massive GeForce 8800GTS 640MB video card I had installed. However, after switching that out for an older 256mb ATi video card, the same thing happened. The PSU I am using is 500w so I would think that would be plenty of power, but one thing the PSU does not have is a 8 pin 12v connection, only a 4 pin. Would that cause the problem I am experiencing? Could it be an overheating issue?
2007-03-12 15:21:42 · 2 answers · asked by Paul M 1 in Computers & Internet ➔ Hardware ➔ Other - Hardware
Now after swapping video cards, the computer won't even go into post. I thought it might be the resolution thing, but it displays the Windows XP login screen for about 30 seconds and then it will suddenly switch to no signal. If the resolution or drivers were the problem, wouldn't the login not display at all? Also, my motherboard has a LCD bootup display and before when it would bootup, it would go through its cycle and stop on FF, which according to the mobo manual means the system is booted. However, when the screen goes blank, I get a "- -" on the display, which makes me think the system has crashed as well, not just the video card.
2007-03-12 16:15:14 · update #1
What is happening is that the signal that the video card is sending to the monitor exceeds the monitors capability to display, It could be the resolution, it could be the refresh rate.
Your best bet would be to hit the "f8" key a few times before the windows splash screen comes up. This will allow you to select some custom boot up options. From there select "enable VGA mode". This will set the video signal to the default of 800x600 at 60Hz which pretty much all monitors can display.
If this doesn't solve the problem, it may be because you have onboard video on the motherboard and you need to disable it in the bios.
2007-03-12 15:51:36 · answer #1 · answered by Bjorn 7 · 0⤊ 0⤋
what windows are you using? i've experienced that before (that was 3years ago...)try to going to safemode (by pressing F8 before the windows loading) choose safemode then try to disable the video card driver. then restart. if the windows start completely w/o your video card driver then you have a problem with your driver if not. also try this on DOS mode type this on the prompt C:\chkdsk
i hope it helps........
2007-03-12 15:29:05 · answer #2 · answered by Jiro 1 · 0⤊ 0⤋