ATX PSU ACE A650 BR

Hi

I am building the prusa i3 model and got an ace 650 watt psu,I have googled about this psu and found out that it is not reliable. it is over rated and the specs seems impossible with it's price tag. Are there any reprap users who used this atx psu.
I intend to design a atx pcb board to breakout the 12volts and ps_on connections.


thanks

Cheap ATX PSUs are not all that reliable, nevertheless that PSU should be adequate (unless it actually fails) for printing PLA if you provide the necessary minimum loads on the 5V and 3.3V outputs. You may find that the +12V output drops significantly under load, in which case you may find it hard to get the heated bed up to around 100C for printing ABS. RepRapPro used to ship a 550W Ace or Alpine PSU with the Ormerod 1 kit. They switched to a 12v 20A LED-type PSU for the Ormerod 2.

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Large delta printer [miscsolutions.wordpress.com], E3D tool changer, Robotdigg SCARA printer, Crane Quad and Ormerod

Disclosure: I design Duet electronics and work on RepRapFirmware, [duet3d.com].

I've been using an old (and dirt cheap) 350w PSU to print PLA with no issue.
I did get a LED-type psu to replace it, but you should be fine for a while.