Plz help me with my bios problem

Dell / Optiplex 780
October 21, 2015 at 02:51:42
Specs: Windows
I installed the bios driver and then my computer was restarted after that the updating was running and suddenly the power came down of my house and the pc shuts down unexpectedly now i start my computer and its stuck on the startup screen showing no options.... How can i solve it?? :(

See More: Plz help me with my bios problem

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#1
October 21, 2015 at 09:56:50
I assume you mean a BIOS update and that there was a specific reason for it because these are not just done on a routine basis.

You could approach the makers and see if they do some sort of reset but bricking the motherboard is a risk you take when doing BIOS updates.

Unlikely to help but you could try discharging the motherboard like this:
Turn off computer, remove power cord then hold the Power Off/On button down for at least 30 seconds. At least it is easy to try.

Always pop back and let us know the outcome - thanks


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#2
October 21, 2015 at 10:15:42
You can also try a BIOS reset. Unplug the power cord, then either use the clear CMOS jumper or remove the motherboard battery for a few seconds. Reinsert the battery, reconnect the power, then try to boot the system. If it works, immediately enter the BIOS to change the date/time & then run thru all the other settings & reconfigure as necessary.

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#3
October 21, 2015 at 21:20:43
Powering down in the middle of a BIOS flash operation is usually unrecoverable using just the target PC. You can remove the BIOS chip and have it flashed on a standard eprom burner to answer how can I recover question. This will require an eprom burner and best done by someone with some experience in extracting data from BIOS flash files too. Time for a tech, methinks and not just a run of the mill type of tech either - you are between a rock and a hard place for sure. It can be done. Once the correct code has been flashed into the BIOS chip you simply replace it into the target PC and power it up - you won't need to reflash the BIOS at that point. You'll need the motherboard manual to start with in order to ID the BIOS chip properly and then find a tech that wants to take on the job. You can do this yourself, but it's a huge learning curve to get there from here if you are in here and asking how to do it. It's quite easy to do if only you knew how and had the $40 eprom burner to do it with running on a second PC. Search on eBay for universal programmer to find them starting at around $35 and up.

Lee


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Related Solutions

#4
October 21, 2015 at 22:07:46
An optiplex 780 wouldn't be a windows 95/98 computer, which is the forum you're in. If that's not it describe the computer you're having problems with. Bios upgrade procedures and recovery depend on what you've actually got.

Also by 'startup screen' do you mean the Dell logo or the windows startup logo?


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#5
October 22, 2015 at 18:38:32
@#3 If your going to go about this on your own, you might consider installing a socket for that IC assuming it's not already socketed. You can only solder and de-soldering so many times before you start delaminating pads/traces. Once is enough really, depending on the quality of the PCB, the soldering, and equipment available.

Maybe the design allows for in-circuit programming, but I doubt it.

message edited by ISAmad


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#6
October 22, 2015 at 19:26:52
Thanks for the input ISAmad but the BIOS chip is almost always already socketed so no such problems exist. And this is true from day one when they still used ceramic UV erasable eproms with the quartz window instead of today's flashable eeproms. Of course the design allows for in-circuit programming (that's what he was doing when the power went down) but only when valid BIOS code is running correctly in the first place and that is exactly the problem here - the code isn't. It's locked up showing NO information as to options to select from to alter. In circuit programming part of the BIOS code isn't available for use in this particular case, but normally would be.

And here I'm assuming the OP means setup screen instead of startup screen.

Lee


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#7
October 22, 2015 at 21:28:40
Well I don't know about the Dell OptiPlex 780, but the BIOS chip in the Dell OptiPlex GX150 is soldered directly to the board. And the in-circuit programming I was referring to is programming you would do using an adapter to connect say a PC serial port or USB port to a programming port directly on a PCB. The programming port would most likely be wired directly to the BIOS chip, power to the motherboard applied normally, possibly with, possibly without the CPU present, the programming adapter would halt the system from booting, and allow programming to take place.

At any rate, taking it to a tech, is probably your best option at this point.

message edited by ISAmad


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#8
October 25, 2015 at 05:30:33
Ahh, well in a throw away world such as they build them today what are you going to do but throw it away? Not that the OP is around anymore but a replacement motherboard can be had starting at $20 on Fleabay. And that would get him up and going again, no tech really needed.

Soldering that chip to the board was unheard of when computers cost $3,000. Not that this was a good thing either. Just the way it used to be for a good long while too. Will remember to suggest a replacement motherboard next time first.

Lee


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