Question about Compaq Evo D510 Minitower (Open Box) (OB4700432011) PC Desktop

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Installed new DIMM memory in Compaq D510 CMT - puff of smoke

After the puff of smoke, turned off the computer, reseated the memory, turned computer back on - stayed powered for 3 secs, shut down, powered up and got flashing numlock on keyboard and 1 short, 2 long POST beeps.

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  • Anonymous Feb 04, 2009

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Here's a full list of the POST beeps for your computer:

http://bizsupport1.austin.hp.com/bc/docs/support/SupportManual/c00704816/c00704816.pdf

That flashing numlock and beep pattern says there is no system memory. When you let the smoke out before it might have been fatal for something. It could be the memory itself is dead, or something could have been damaged on the system board that is keeping it from detecting memory. The only way to know for sure is to try another stick of known good memory.

There's also the possibility you used the wrong kind of memory when you added the new part. Here's a link to the hardware guide for the computer:

http://bizsupport1.austin.hp.com/bc/docs/support/SupportManual/c00706221/c00706221.pdf

You can use the information to be sure any memory you get is supported.

Hope this helps you. Good luck getting the computer running.

Posted on Nov 23, 2008

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Flashing Num lock is a sign of mixed EEC / Non-EEC memory

Posted on Dec 10, 2008

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