Monitor, keyboard, mouse

When I put on the PC, there was some kind to sound (may be with Power supply)
After switching the pc for a few minutes I tried to restart but there was no sign of Power. I installed another PSU and not the CPU seems to get power along with fans,
however CPU does not seem to boot as well as no response on monitor, keyboard and mouse......I did also replace battery in the motherboard..still no luck...can anyone help....thanks........pakia
 
The motherboard is probably bad. Did you notice a power surge or power loss in your home?
 
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