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In Reply to: RE: I need a little help on a no-boot issue posted by theob on January 30, 2012 at 17:49:18
Turns out I had my Master Boot Record on my ssd corrupted. Only way I could fix was by reloading Windows. During that process one of my 2 switching power supplies failed (it was supplying my cpu and one of my data discs). So this may be at the root of my downtime. I put my cpu on the one good psu and finished loading xp from scratch. Then reloaded my 25 mb Windows with Snapshot (thank goodness for SS). So I'm good & will probably leave p4 and p24 on one PSU and drive data discs with separates. Ah the sweet sound of music!Now why does my switching psu's keep failing? Beats me. I used to run my psu's on the low side (on the pot inside I set p4 to 11.92 v). After 2 failures I adjusted my latest psu to a tad over 12v. Well now that one failed. So for a while I will run p4/p24 off of one psu to see if that helps. Who know maybe running low cpu core volts and low speed contributes. I was running at 150 core speed with 6 multiplication factor so thats 900 mhz. I run v core at a tad under 1 volt.
Now all have to do is figure out how to back up my MBR.
A big thanks to Douwe01nl and Ryelands for all their help.
Edits: 02/01/12Follow Ups:
I do not think that turning the voltage down does it. I think it is the minimal work we give them to do and maybe the added caps.
I think the less you ask of a switcher the harder life becomes for the thing. I think they like to work around 80% capacity. We are asking for something like 20% with the EA430, if that much. I think this is as hard on it as working at full power.
Does it have to sink the extra/unneeded power within itself? I have no idea and am lapsing into my bad poetry explanations again.
I also wonder if adding all of the these capacitors does something that the switcher does not really like?
Ted, you should make yourself a linear supply for the P12. Not hard at all. If you can solder I can give you an easy list of parts that will make it easy, including circuit boards. P24 is just three of the same supplies when you are ready to have some real fun!
Rick yes I would appreciate if you sent me copies of schematics and parts list for the linear psu's you built.
Give me a day or so to make it easy for you.
,
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