Although motherboard beep sounds depend on the type of CMOS/BIOS (like AMI, PHOENIX, IBM, AWARD BIOS etc) - still long beep is because of RAM failure. Please first remove the RAM - clean the RAM and slot well - re-install it - you may try in the different slot also. If it does not work you must use another RAM (the frequency should match).
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Although motherboard beep sounds depend on the type of CMOS/BIOS (like AMI, PHOENIX, IBM, AWARD BIOS etc) - still long beep is because of RAM failure. Please first remove the RAM - clean the RAM and slot well - re-install it - you may try in the different slot also. If it does not work you must use another RAM (the frequency should match).