Solved cannot see BIOS screen; computer will not boot

March 31, 2013 at 15:57:20
Specs: Windows Vista 64-BIT
My DVD burner was not recognizing DVDs, including factory made commercial DVDs, but it would recognize CDs. Anyway, in my attempt to solve this problem I deleted the driver in Windows and went to restart my system, intending to re-install the driver and hopefully resolve the issue. However, on restart my system will now not boot up at all. I do not see the BIOS screen either. On my computer there are two DVD drives, D: (a burner) and E: just a DVD-ROM drive. The drive in question is the D: drive. When my computer is turned on, all fans and lights, etc. power up but there is nothing coming up on the screen. There is also no power going to the E: (not the one I removed the driver for). D: drive (the one I removed in Windows) does have power, the tray will open, etc. So, essentially when I turn on my computer the fans power up, the D: drive powers up, but when I attempt to put in my Recovery CD nothing happens. The hard drive doesn't appear to be firing up.

So, how did deleting the D: DVD burner driver disable everything? Can I have the computer bypass the DVD drives and boot straight from the C: HD instead?

Thank you and any help you may able able to provide would be greatly appreciated!


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✔ Best Answer
April 1, 2013 at 05:01:40
Possible the PSU has failed but I would try re-seating all cables and cards while the computer is unplugged. If you have integrated graphics available then remove the add in card completely and use the integrated graphics.

Did you completely disconnect the bad DVD drive?



#1
March 31, 2013 at 16:15:19
It's possible that the optical drive problem was a symptom of a more fundamental degeneration issue, of perhaps PSU, MB, or video card. I would unplug the opticals for starters. If there's an onboard video chip us that instead of an accelerator card. Finally, swap in a known-good PSU.

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#2
March 31, 2013 at 19:33:04
Combination optical drives have TWO different lasers inside. One for CD and one for DVD media. This is necessary because each type requires a different wavelength of light. So, it is common for one to stop working because the laser has burned out or because the lens covering the laser has become dirty. This happens because there is soot created by the burning process.

You can try to clean the lens by using a lens cleaning kit or with long Q-tips and alcohol.

If you go to Device Manager and remove any instances of the optical drives they should be reinstalled on the next boot.

Your second drive is probably a CD burner and DVD reader. Change the Boot order in the BIOS to CD first and try using the other drive to boot to your Vista disk and perform a repair

Optionally you could try booting to Safe Mode by continuously tapping F8 at start up and selecting it.

Disabling the optical drive should NOT cause Windows to not start if it was working before. Did you enter the BIOS (setup) screens and make any changes or open the case and do anything in there?


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#3
March 31, 2013 at 20:58:17
Thank you for your reply. I did not modify any settings in the BIOS. I can't access that now as no video or anything comes up when the computer is turned on. I have only opened the case after the problem occurred. When I put in a CD into the D drive it will spin up slightly but nothing happens after that. My D drive is a DVD +/- RW drive while E is DVD-ROM. D was the one having problems and the one I removed in windows but E now is totally unresponsive.

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#4
March 31, 2013 at 21:23:14
I suggest you disconnect the problem drive. Both the power and data cables. That drive may have a failure that is causing the computer not to boot. The timing may be coincidental.

Was the lack of video present before you opened the case? Disconnect the monitor cable from the tower and turn it on. You should see a NO SIGNAL message on the screen.


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#5
April 1, 2013 at 02:23:58
The lack of video was present before I opened the case. The monitor is showing no signal. The fan on the video card is running as ate the other fans in the case when power is turned on. Could my power supply have failed? Could if be putting out some power but not enough to actually start the computer? I did try disconnecting one and both DVD drives earlier to no effect.

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#6
April 1, 2013 at 05:01:40
✔ Best Answer
Possible the PSU has failed but I would try re-seating all cables and cards while the computer is unplugged. If you have integrated graphics available then remove the add in card completely and use the integrated graphics.

Did you completely disconnect the bad DVD drive?


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#7
April 3, 2013 at 19:45:12
Thank you everyone for your help. I replaced the PSU and that appears to have completely fixed the problem. In fact I am replying to you on the computer in question.

Thanks again!


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#8
April 3, 2013 at 20:58:00
Glad to hear you have resolved your problem. Thanks for getting back to us.

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