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Dell XPS 9000 vs SW5548 - Page 3

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Posted by Ron Rosenfeld on March 17, 2010, 11:43 pm


Perhaps you missed my description of the type of power supply.  As a matter
of fact, this particular problem is apparently pretty common with PFC

Posted by Brad Guth on March 7, 2010, 2:57 am

More than good enough.

 ~ BG

Posted by Ron Rosenfeld on March 17, 2010, 11:45 pm


You're probably right about the SW5548 being "more than good enough". After
I initially posted here, I recalled that a self-built computer of mine,
that I use at the off-grid location, has a SeaSonic PSU which "is" a PFC
PSU.  I had purchased it because the increased efficiency was advantageous
in that off-grid location.  And it's worked fine.  So I'm guessing the Dell
would probably work OK also.

Posted by z on February 23, 2010, 9:57 pm

I see a lot of people complaining about this issue.  Seems pretty bone
head for Dell to do that.  Looks like you could swap out the PSU with one
that works if you needed to do that.


according to the sw5548 blurb:
"Designed to provide homes with a completely independent power supply,
the SW 5548 offers sinewave, utility grade output power, high capacity
battery charger, high surge current ability, and easy installation"

So if it is a sine wave you should be good.  

Or spend 50 bucks on another PSU that will take square waves (like most
do).  Looks like the DELLS and other companies are using PSU's that are
within European Spec's (which require sine waves apparently) so they
don't have to have two types for different markets.  Your standard Antec
or other quality 3rd party PSU's will work on your computer though --
it's not required by any internal hardware specific to your DELL.  YOu
will invalidate your warantee by doing that though.



Posted by wmbjkREMOVE on February 23, 2010, 10:45 pm

3 Dells here. Dimension desktop about 3 years old, Vostro laptop about
18 months old, and Studio laptop about 6 months old. All work fine on
SW4024s. Both laptops have universal power supplies that accept
100-240V, 50 or 60Hz.

Ron, does your Dell refuse to start? My previous HTPC would do that
sometimes on first boot after being unplugged and re-powered. But if I
waited for a half hour and tried again, it would be fine until the
next unplugging (months). Then the power supply died (it was a real
cheap one that came with the HT case), and I figured that once I
replaced it with something better the quirk would go away. No such
luck. After a year or so without any issues with the new PS, I
unplugged the box to do some parts swapping, and it never booted
again. Turned out it was a common fault with that particular
motherboard. The new MB (an entirely different animal which is also
happy on the SWs) has been flawless for about a year, but I've read
complaints that some owners of the same model occasionally have to
remove and reinsert the CMOS battery to cure a refusal to boot.



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