There is not bios, or anything else showing

I have a dimension 4550 requiring an upgrade, but what I didn't have a battery in it was dead.  I disconnected to do the upgrade and now facing a black screen.  I have a new battery installed and dvd cd players work but the screen does nothing... What do I do now or should I take to Highway and lie down next to him?  There is not bios, or anything else showing

I have a dimension 4550 requiring an upgrade, but what I didn't have a battery in it was dead.  I disconnected to do the upgrade and now facing a black screen.  I have a new battery installed and dvd cd players work but the screen does nothing... What do I do now or should I take to Highway and lie down next to him?  There is not bios, or anything else showing

Once the parameters required by the computer's BIOS were kept in low-power CMOS memory.  The power was supplied by a battery when the power was provided by the computer's power supply.  Removing the battery with no available backup power would cause the memory of losing the settings.  Some - but not all - power supplies provided backup power to the CMOS when the computer was turned off but still connected to the external power supply.

More recent computer use a nonvolatile memory such as EEPROM or flash the BIOS settings for memory, so that the only thing the battery support is the real time clock.

In both cases, remove the BIOS battery without having available backup power will not result in a black screen.  If the BIOS settings are lost, the computer will generally display a message giving the possibility to access the BIOS configuration utility to reset the missing values.

Most probably, when you had the case open to change the battery you dislodged or loose a connector for the video card.  Two more serious possibilities come to mind: you put the battery head down (I don't know what will happen in this case) or you skipped a few circuits with static electricity.

Open the case and static precautions, look for loose or damaged connections.  Also check the polarity of the battery of the BIOS.

Tags: Windows

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