After resetting CMOS battery My pc do not start until I reset my pc ram every time.

[BeemerBiker]

Very sorry!!!  I have posted information about the Z400 by mistake.  Your system is 6300

I was helping someone else it seems and put the wrong info here.

[BeemerBiker]

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@usghani wrote:

Thanks for replying, I have installed hp hardware diagnostic application and run full system scan but no issue were found. When I restart my pc it works fine. But when I start it after shuting down It doesn't boot up ,no signal on monitor while all the fans and harddrive running and it doesn't show anything on screen no beaps , and after nearly 1 minute PSU fan speed up at its full speed. Than I turned off power and reinstall ram than it start working normally. Every time I reinstall ram to start my pc after shuting down it

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Sorry for the wrong information.

The above indicates a problem with bios and/or a serious problem with the motherboard..  The latest versions are here but obviously you need to be able to start windows.  You can try the WindowsKey + B  to load the an older bios.  I am not sure if your system, the 6300 supports that feature.

Since the system does boot (after re-seating ram??) please check the bios version.  Is it one of the following?

[usghani]

[usghani · Accepted solution]

The above indicates a problem with bios and/or a serious problem with the motherboard..  The latest versions are here but obviously you need to be able to start windows. Try to upgrade BIOS to the latest version. If this does not solve your problem than probably issue is in motherboard.