T7610 POST - Power, LED1 and LED3 flashing

Good evening

From my work I got the above mentioned tower, which also worked perfectly at work until the end. Today I tried to get the device ready for my purposes, i.e. graphics card and hard disks installed. When I tried to start the tower there was nothing but the noise of the fans and the mentioned error message. I know it has something to do with the power supply and then I just tried everything possible. I even removed RAM or removed all cables so that in the end only the mainboard was fired. Even fans I simply removed for testing. Graphics card and the hard drives were also removed. Error remains...

I just can't imagine that the power supply is really broken. At work it still works and at home it doesn't work anymore... Is there anything else I can/should try? Can I connect another normal ATX power supply to the 24-pin ATX and see if I still get the same display? You can remove the upper 20-pin and it will turn on, I noticed that already.

The tower is operated with only one processor and 4 sticks.

What I know, if the power supply would not work anymore, the green LED would not light up, but it does. I tried it in the removed state to connect it and press the control button. Starts up and lights up happily, even if it is installed and all components are connected as well, just like I would like to have the tower.

Ask for help... Thanks in advance

Greetings

Jan

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