A7V133 Ultra100 Bios will not boot

[vk4byg]

Ultra bios 100 would not boot after I swapped to a 450 watt PS. It is hard to believe as all DC voltages were within tolerance, but without a CRO I could not check AC components.I changed back and forth 5 times and would only work with original power supply . It is now stable again and would like to hear any explanation.

 

[RealBlackStuff]

Welcome to TechSpot

Promise have an extensive FAQ here:
http://www.promise.com/support/faq/faq2_eng.asp?product_id=18&pname=Ultra100

Perhaps they have an answer?