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Disconnect everything except a 12V fan from your psu and power it up with the paperclip method. Check your 12v and 5v rails for a baseline. Then connect some hdd's to the psu, power it back up and check again. If the psu drops our of reg on the 5V rail, your probably have some bad caps in your...
1n5402 pack of 2
Stripe will go towards the pump. If you test it on another power supply make sure that you add a load several fans in parallel should be enough to get you close to 500mA or 1A load.
The your best bet would be to use either 2-3 rectifier diodes in series with the pump, like the 1n5400. Typical forward voltage drop is about .5-.7v until you approach 3A (maximum forward current for the 5400 series). Then it will be closer to 1V. Since your pump has a maximum current load of...
Some additional specs would be helpful. Does it need multiple voltage outputs? 3.3V, 5V, 12V, or just one output like 19V. Can it be external like a power brick or does it have to be enclosed in a system?
And why 450+Watts? What will it be used for? Is it possible that it could be a lower...
Pirate costume optional! lol. I think she does it because she knows she won't see me for a few days since I'll be in the man cave with my attention on building or upgrading.
I always get excited. I keep checking the tracking online while I'm at work. I love seeing that delivered notification. Of course when I get home, I have to on a treasure hunt because my wife finds it fun to hide my shiny new parts from me. :)