My desktop PC's PSU is acting a bit strange as of late. I'm experiencing unexpected shutdowns, especially while the system is under load. One thing I noticed is that the PSU feels quite warm to the touch after these unexpected shutdowns, too warm in fact.
I've checked the voltages with a cheap multimeter (DT-830D) with a mild load of 5 amps on the 12v rail and all voltages seem to be well within tolerance. In fact, I even checked them while the system was under load (FurMark) via a spare molex connector and everything seems to be fine.
Now, I wish to see the DC ripple and see if it's within tolerance as well (ATX specifies a maximum ripple of 120mV peak to peak) but unfortunately I don't have access to an oscilloscope, and neither I've enough money saved-up for a decent PSU. Which brings us to the question: Is there ANY way I can measure the ripple with the cheap DMM I have?
I apologize if it sounds foolish but I've next to zero knowledge when it comes to electronics. I've been Googling about this for several days now but can't seem to find a definite answer on this topic as the information regarding this matter is surprisingly sparse.
P.S This is my very first post here so I'm sorry if this isn't an appropriate place to ask such a question. I just can't seem to find helpful information anywhere regarding this matter and 'All About Circuits' seems to be the most appropriate place on the whole worldwide web to ask such a question!
Thanks a lot for your patience and bearing with my sheer ignorance and bad English!
I've checked the voltages with a cheap multimeter (DT-830D) with a mild load of 5 amps on the 12v rail and all voltages seem to be well within tolerance. In fact, I even checked them while the system was under load (FurMark) via a spare molex connector and everything seems to be fine.
Now, I wish to see the DC ripple and see if it's within tolerance as well (ATX specifies a maximum ripple of 120mV peak to peak) but unfortunately I don't have access to an oscilloscope, and neither I've enough money saved-up for a decent PSU. Which brings us to the question: Is there ANY way I can measure the ripple with the cheap DMM I have?
I apologize if it sounds foolish but I've next to zero knowledge when it comes to electronics. I've been Googling about this for several days now but can't seem to find a definite answer on this topic as the information regarding this matter is surprisingly sparse.
P.S This is my very first post here so I'm sorry if this isn't an appropriate place to ask such a question. I just can't seem to find helpful information anywhere regarding this matter and 'All About Circuits' seems to be the most appropriate place on the whole worldwide web to ask such a question!
Thanks a lot for your patience and bearing with my sheer ignorance and bad English!