Technical Psu Conversion Thread
Posted 17 September 2006 - 07:46 AM
Posted 18 September 2006 - 03:22 AM
For a prototype, price can't be beat!
You'll sell a bunch more when you offer a fully-wired version with harnesses (plug ATX PSU --> converter --> motherboard).
Posted 18 September 2006 - 03:35 PM
Posted 18 September 2006 - 04:01 PM
Posted 18 September 2006 - 05:05 PM
Whats wrong with the old designs... Iv used them loads of times and they work amazing. Never had any problems
Well, I just didn't like them. Using just a Zener for the regulation of the 3.3V is not correct in my eyes as it can fluctuate if its not properly regulated. And I prefered using these threestate buffers as they will guarantee correct logic levels. Old versions probably work most of the time, but I prefer this.
Nice work! I take it you never found a way around the 5vstb problem with 1.6 psu's?
nope, we had a small discussion about it here:
but I'm not sure anyone tried it out. Problem is the huge load on the 5vsb rail
Posted 18 September 2006 - 08:04 PM
Posted 18 September 2006 - 09:43 PM
too bad diodes aren't idea, that would have done the trick =)
Would be interesting if some one tried though, I've seen shottky diodes go pretty low on the voltage drop. Problem is that there might be some components that can't go very far under 5V on the mobo.. but then again, maybe not..
Posted 18 September 2006 - 10:11 PM
I just rechecked the psu and I was wrong. The non standby 5V rail can handle 3.6A, the switched standby rail can do 13.6A
I have no idea what they are up to at the M$ engineering department.. 13.6A stb rail? Damn..
Posted 18 September 2006 - 10:49 PM
Posted 19 September 2006 - 05:03 AM
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