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itbvolks · 04.19.2010, 11:39 AM

Update:

So I shortened the length of the input leads on the 720i and it certainly helped. Originally I was losing roughly .6-.7v when measuring the bullets off the PS and then reading what the charger is/was seeing for input voltage. With the shortened leads on both PS and charger and addition of 6.5mm castle bullets, I'm seeing roughly .1-.2v loss now. Better for sure.

Still haven't tried loading the 3.3 or 5v lines. Next on the list. Yesterday I got to run the setup and get some batts charged at 1c and I was seeing about 11.4v on the input side(this at only 4.2A charge rate) No load on the ps/charger is about 12.1v.

I know there is more available from this PS so need to keep digging. At a minimum per ATX specs, I should be able to pull ~15A from one of those single pads. I've tied the 2x together via 12AWG so was hoping to have the full 30A available but clearly something isn't totally right here.

I just can't believe I'd see nearly a ~1V main line loss off the rail only pulling 4.2A @ 11.3v. We're only talking ~48watts here. Most processors alone draw more than that and any modern GPU draws a hell of a lot more than that......

PS doesn't seem to be heating up at all really. Nice and cool and quiet.

	(#38)
itbvolks RC-Monster Carbon Fiber Offline Posts: 119 Join Date: Mar 2010	04.19.2010, 11:39 AM Update: So I shortened the length of the input leads on the 720i and it certainly helped. Originally I was losing roughly .6-.7v when measuring the bullets off the PS and then reading what the charger is/was seeing for input voltage. With the shortened leads on both PS and charger and addition of 6.5mm castle bullets, I'm seeing roughly .1-.2v loss now. Better for sure. Still haven't tried loading the 3.3 or 5v lines. Next on the list. Yesterday I got to run the setup and get some batts charged at 1c and I was seeing about 11.4v on the input side(this at only 4.2A charge rate) No load on the ps/charger is about 12.1v. I know there is more available from this PS so need to keep digging. At a minimum per ATX specs, I should be able to pull ~15A from one of those single pads. I've tied the 2x together via 12AWG so was hoping to have the full 30A available but clearly something isn't totally right here. I just can't believe I'd see nearly a ~1V main line loss off the rail only pulling 4.2A @ 11.3v. We're only talking ~48watts here. Most processors alone draw more than that and any modern GPU draws a hell of a lot more than that...... PS doesn't seem to be heating up at all really. Nice and cool and quiet.