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Laptops too?
Authored by: jeb11382 on Oct 11, '05 10:42:32AM
"I basically recommend that anyone who owns a com[p]uter should get a UPS. No exceptions."

Is there any reason that a laptop owner would want a UPS instead of just a surge protector? My PowerBook already adjusts to rapid power changes (when I unplug the cord from the wall, for example) and regulates the voltage. It also lasts 2 hours if the power goes out. If I have no external devices, can anyone think of a reason why I would want to spend so much for a UPS when it seems that a portable surge protector would do?

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Laptops too?
Authored by: mike666 on Oct 11, '05 11:09:59AM

When unplugging the power adapter from any of their portables, Apple officially recommends that it be unplugged from the portable first then from the AC outlet to avoid causing problems with the PMU. If the power drops or goes out completely, this is essentially like unplugging your adapter in reverse. I've seen brownouts cause problems with both a desktop and a portable at the same time. This may only happen a fraction of the time but why take chances? Fortunately, a PMU reset or leaving the portable shut down for a while can usually get things back to normal. More seriously though, most power strip surge protectors are majorly inferior to the spike protection circuitry in a UPS - and the right type of power spike could easily take out your power adapter, your DC-in board or even your logic board.



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Laptops too?
Authored by: imageworx on Oct 11, '05 11:52:24AM

Laptops do have the advantage here (for continuous power). However, surges, spikes,... can still do harm. And a cheap powerstrip merely has a "cheap" protection (likely a choke or cap). You are saving money only on outlets. Nothing more. Check manufacturer for ratings and specifications. Again, a voltage regulator either builtin or separate isolation transformer can give you clean power (when its there).

Don't forget damage can come from the modem cable (if you use dial up) as a POTS line can handle up to 500Volts (Tip ring).
I would recommend a decent surge protector at minimum that filters modem wire. You can also add surge/lightning protector to Coax line (Cable modem) or telco line (DSL) to protect from outside problems.

And it might sound silly, but humidity is important in winter climates (that tend to get dry). That static charge (high voltage) you build up from the carpet (or synthetic clothing...like micro fleece) can generate enough to fry not only your computer hardware but also flash cards, USB keys and other sensitive electronics. A humidifier (inline or room unit) can help.

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To BeOS or Not to BeOS



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Laptops too?
Authored by: lucite on Oct 18, '05 09:47:23PM

Why would you want to protect your Coax line? Just for the modem, or can electrical issues go through ethernet wiring too?



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