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Last week I bought a computer with the following specs:

Motherboard: Intel DH67BL

RAM: 2x4GB AMD 1600Mhz

Processor: Intel i7 3770 3.4Ghz

Harddrive: 2TB Seagate Sata 3

Every time I turn on my computer, it beeps 3 times and after 2 seconds beeps 3 times again.

Does my computer have a problem or is normal the beeping on start?

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Since you havn't bothered to do the basic checks, let me get you started: 3 beeps = Bad memory. Take it back to where you bought it. – Ƭᴇcʜιᴇ007 Sep 1 '12 at 15:38
up vote 0 down vote accepted

While one beep during startup might be normal regarding the BIOS, multiple beeps definitely aren't.

The documentation of a mainboard usually shows the meaning of certain "beep-sequences".

In your case the error description reads:

Memory error

for the pattern:

On-off (1.0 second each) three times, then
a 2.5-second pause (off), the entire pattern
repeats (beeps and pause) until the system
is powered off.

See: Intel DH67BL manual

I guess you have built in incompatible or defective memory. Try removing one memory bar or a different RAM.
Returning the mainboard would not be the first step I would try.

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