Hey there have an l7vmm2 When I power up, it will run the CPU fan (power the board and devices) for about 3 seconds and then all power stops from the power supply. Have tried three Power supplies - all are working fine. Memory is fine. This system worked fine when it was put away two years ago. all drives, etc are disconnected for the sake for trouble shooting. Just CPU, fan, memeory. The Memory LED lights up fine. No Beeps. has Onbopard Video but on signal to monitor.
Sounds like the CMOS battery on the motherboard needs replacing...i would try clearing CMOS first, replace battery and test voltage at the CPU (through the BIOS) If that dosen't help you likely have faulty capacitors.
If you get it to boot, im sure drivers and BIOS will need updates if it's been stored 2 yrs.
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