CTC printer dual extruder DOA

[Benjy88]

Hi, first of all ty for you for your replies. Since it's brand new(received on friday)and it's my first printer i'm still getting acquaintance with the machine. I suppose it's PSU since it randomly gets the 24V the 3,3 and 5 V on.
Even though the fan spins sometimes very slowly, sometimes not at all i hear a buzz that usually on ATX psu's meant:"hey i0m going to die!"
to be sure i asked the ebay reseller printchainstore to send me both parts, we'll see when they arrive.
Just in case do you knwo where to buy a spare psu for replacement?

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