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question on power supply rails

R

rhino19

Junior Member
i have built a computer for my mother. She said she had random reboots on the machine. I bought her a generic power supply. I noticed that the 12 volt rail was around 11.75 is this a reason for the random reboots since as i understand it the 12 rail supports the processor. I also have the same motherboard and processor and my 12 volt is at 12.05-12.11. Could this be the problem any help would be appreciated.
 
11.75 is not too low. If the reading varies alot (say 11.3-11.9) then you might have a problem. Both my name brand power supplies vary from 11.7-11.86. Random reboots can also be caused by a memory problem. What brand and type of memory are you running?
 
some motherboards can get picky about even small rail fluctuations (or even brands of psu's)

put your psu in her system for a day and see if that fixes it


good luck


 
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