Solved: Re: HP Compaq DC7900 beeps 5 times - HP Support Community

himaryuk · ‎05-06-2017

I have my HP DC7900 SFF beeps 5 times and did not starts! it was not in use for nearly a year and stored, and was fully working before that,I opened the case and checked all connections they seem all in order, that still did not help, then I tried reseated all the installed RAMS ( four slots) the PC started fine and runs OK,all rams seems fine so is slots, what has caused this problem and how to solve if it happens again?any help is very much appreciaed.

himaryuk · ‎05-06-2017

Thank you very much for the help and support.

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erico · ‎05-06-2017

If the only thing you did to resolve the issue was reseat the DIMM modules ,then just do the same thing if it happens again.

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himaryuk · ‎05-06-2017

Hi, thank you for the response and help,is there any other possibility that may cause this 5 beeps issue?the rams look was in proper position and clips, I tried first pushing them hard in slots for the first time but this did not help, then I tried reseated them,each in its own slot that has made the PC works again, is it possibly that the ram contacts are not clean?thank you

erico · ‎05-06-2017

It was probably just some slight corrosion on one of the DIMM slot connectors that caused the issue.

It is nothing to worry about.

Reseating memory modules, as you did, is often a cure for a memory related no-start problems.

Godd job!

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himaryuk · ‎05-06-2017

Thank you very much for the information and help,very much appreciated, Kudo left to thank you.

Is this form of 5 beeps is related to ram issue and not other issues?is there way to identify if it is related to slot issue or ram issue that has this corrosion?

Thank you.

erico · ‎05-06-2017

@himaryuk wrote:
Thank you very much for the information and help,very much appreciated, Kudo left to thank you.
Is this form of 5 beeps is related to ram issue and not other issues?is there way to identify if it is related to slot issue or ram issue that has this corrosion?
Thank you.

Since the system is working, reseating the modules may have already removed the corrosion, if it was present.

If no symptoms exist, there isn't really a way to verify the cause.

I am a volunteer forum member. If my suggestion helped you solve your issue, help others by marking that post as the accepted solution. Say thanks by clicking on the Yes button next to the "was this reply helpful?"

himaryuk · ‎05-06-2017

Thank you very much for the help and support.

HP Compaq DC7900 beeps 5 times

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