Can a damaged/failing PSU damage new components?

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action2288

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Mar 11, 2007
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Computer died. Troubleshooting wasn't able to figure it out. Since it could be the PSU, mobo, CPU, or memory, and my system is old (2008), I decided it's time to upgrade the CPU/mobo/memory. If it turns out my PSU is the issue, can that damage my new CPU/mobo/memory?

Edited to clarify that I mean a damaged/failing CPU, not a cheap/crappy one.
 
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NBSN

NBSN

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Jun 2, 2014
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Yes a PSU that messes up and gives out incorrect amounts of electricity can cause issues with old and new components. Since the system is from 2008, if you had a cheaper PSU, chances are that is the issue. Most cheaper PSUs only last around 4 years typically from what I have heard in most forums. Depending on the actual load placed on the PSU, as in a load that is close to the max the PSU can handle, even a good one can die after that amount of time. Of course power outages can also slowly chip away at a good PSU too. Sure it could be another component, but I would definitely recommend you either check the PSU yourself if you have the tools or take it into your local shop to see if they will test it for either free or $5.
 
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kittle

kittle

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Dec 8, 2005
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Yes a bad PSU can and will damage new components. (and existing components).
Now it may very well boot fine for a while.. but eventually you will see odd crashes and hangs.. but once you power on for the first time, it starts doing damage.

Since your old PC died, and your going to upgrade, its best to replace everything. You may be able to keep your HDD as a second disk. Budget $60-80 for a new 600watt PSU and you will be good to go.
 
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