[snippage]

I hate suicide.

I forgot fans. I can disconnect Fans. Q9650 CPU stays.

I have confirmed isolation between frame ground and MOBO. SATA power
cables are remove. Ditto 500 MB DDR2-533 RAM module. Still Beep code
"Continuous short beeps: Power error". Either I need an ~2008 PSU or
advice on 5V USB power pack. Don't want to burn more circuits. The USB
power pack is 12Wh. Output is 2.4 A Max. 5V x 2.4A = 12W. not at all
comparable to 400W. Maybe lab power would work?

I don't think I have any need or desire to test USB power pack.

From manual "(Note 5) Dynamic Energy Saver Meter will automatically reset
when the total power saving reaches
99999999 Watts."

Even engineers get confused with units. Watts is power, watt-hour is
Energy. This was reset and should be zero. The manual is not helpful with
PSU. Maybe should swap out for dumb PSU?
Cheap crapy power supplies are better. But I sold my cheap crapy power
supply to my friend Jerry now in Colorado. He has not complained. Cheaper
= better.

This table gives the Power consumption for a GA-EP45-DS3L. This is not with
all the PCI and PCIe slots loaded with goodies:

https://www.anandtech.com/show/2717/11

Idle: 138 or 142 Watts.

Load: 236 or 242 Watts.

Maybe a 400W PSU is a good choice for a fully occupied MOBO?