HI This Is Adil,
We can check it out in different ways.. but i know only two ways...
1. while strating up the system press the "num lock KEY" check wether its running or not then .. if its not working then its shows that SMPS is not working.
2. By removing all the connections from the motherboard and by keeping the copperwire on the 13th and 14th block (or) green and black coloured blocks, keep the wire in it if fan is running then the smps is in good condition...
keep one night with out power and then use it...
by shorting the red and green pin of smps we can check it working or not
Connect Pin No. 14 & 15 on SMPS, if the fan moves then SMPS is working fine else SMPS is faulty.
smps
BHAG
Lpe223-400 0707084775
If someone wants to check the voltage from SMPS even without it being connected to the motherboard that can be done by using a voltmeter. This if connected carefully can indicate the voltage.
To cool the SMPS while the computer is working.
take small wire,place it in atx24pin in middle first line black nd green female connectivity,if da fan runs it is in working state.
smps means switch mode power supply
SMPS are mainly 4: flyback pushpull halfbridge full bridge
Ya easily. just take the ATX smps and pull out it's two extra pin from it's power plug and set it to the PC.
You should not bother to check any power supply in the motherboard. You need to take the motherboard to service centre if faulty.