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Can "power sags" be harmful to a computer?

Last response: in Systems
September 1, 2010 5:03:22 AM

Meaning a voltage that's below normal?

Should I be worried about these or is a surge protector all I need to keep the PC safe from voltage fluctuations?
September 1, 2010 6:08:19 AM

A quality PSU can help with these, but you really do want a quality UPS if this is a constant issue. If you are worried about outages, a pure sine wave UPS is ideal:

Or you can just get a good line conditioner:

I think they do have some cost to run though... You burn some power.

A good surge protector will guard against dramatic issues, but not the more subtle ones that eat up electronics over time.
September 1, 2010 6:12:46 AM

Is there any way to monitor if I'm getting power sags?
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September 1, 2010 6:33:37 AM

I probably have one of those in my basement. I'm really just not sure if it's a problem or not. What kind of damage can power sags do?
September 1, 2010 7:00:07 AM

Get yourself a good UPS.
If power disturbances come frequently, then YES!, your PSU and/or your system will have shorter life.
Common power disturbances at home :
- permanent over or under voltage
- unstable voltage (up and down)
- bad grounding
- power spikes, either sudden drop or sudden high jump in a very short time.
Any of those are bad!
If you have any of those frequently, you must get a good UPS!