Re: Bestec ATX250-12E up and running!

I had the same problem with my ATX-250-12E, +5VSB was to high. Thanks to your schematics and alot of testing, i found the prbblem it was C1 (10 uF/50V JAMICON connected to pin4 of photo-coupler PC2). I replaced it, and my +5VSB is within 1% of 5V. Thank you.

Martin Proulx