Having problems with your Dell Dimension 8200 PC Desktop ?

Dell Dimemsion 8200 Won't Boot - Beeping Sequence 5-2-2-1

\015 I try to upgrade my memory(RDRAM) from 512MB to 1GB(Non-ECC) in pairs. Install 512MB(ECC) by mistake. PC won't boot or post; put out beeping 5-2-2-1 and back panel LEDs are green, yellow, yellow, yellow. This mean ''memory not detected''. Went back to original memory configuration(took new RAM out). PC still won't boot and still put out beep 5-2-2-1. I think BIOS/mobo didn't like the new memory and won't boot but is now stuck in that state no matter what I do. Try to reset BIOS by removing the coin battery but it didn't work. How can I clear theBIOS/NVRAM or whatever so it will recognize the memory as what it was before which is good?TIA\015

Answers :

Often simply disconnecting the power cable, holding power button for 15 seconds, release power button, plug back in will work

Otherwise remove CMOS battery and perform above operation

Hope it works
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