Power Unit

  Fleetblue 11:41 AM 18 Apr 11
Locked

I've been told I need a new power unit for my Dell XPS 420. Anyone know exactly what I'm looking for? Thanks.

  chub_tor 12:24 PM 18 Apr 11

According to this http://en.community.dell.com/support-forums/desktop/f/3514/t/19267468.aspx pretty much any standard ATX power supply will fit but the XPS 420 needs 6 SATA power outputs. If your selected PSU does not have all of these you can buy adapters for the standard IDE power connectors.

  Fleetblue 16:17 PM 18 Apr 11

Thanks for that tub_chor.

  Fleetblue 16:17 PM 18 Apr 11

Edit: chub_tor. Sorry.

  Fruit Bat /\0/\ 20:21 PM 18 Apr 11

If renewing a PSU check:

  1. The physical size of your PSU, some are hard to replace due to being a non standard size.
  2. The amount of power need from the PSU don't skimp. 3 The correct connections for your equipment

  3. Physical Dimensions

Besides the specs and form factors, the physical dimensions are also important factors in selecting a compatible power supply. Here is an outline of the physical dimensions of most standard power supplies:

ATX: 6x3.5x5.5", HxWxD. Most common. Uses 4 mounting screws. Mini-ATX: 5x3.5x5", HxWxD. Rare size. Uses 4 mounting screws. Can be used in a regular ATX case, but often not the other way around. MicroATX: 5x3x4", HxWxD. Use 3 mounting screws. Not interchangeable with ATX or miniATX. Flex ATX: Even smaller than Micro ATX. Various sizes according to case specs; often not interchangeable.

Use the data above to determine if a particular power supply would fit your case.

The quality of a power supply can be estimated by its weight. While this is not a true scientific or thorough measurement of the power supply reliability, it is nevertheless a very simple and easy way for ordinary PC users to estimate and compare the quality of a power supply. Why weight matters http://www.directron.com/psu.html

  1. Power supply calculator http://www.antec.outervision.com/

  2. Correct connections Some boards have 20 pin connectors others 24 pin There is often a 4 pin plug required to power Intel CPUs Molex D plugs for IDE HDD and CD/DVD drives SATA power connections for latest HDDs and DVD drives.

Guide to changing PSU http://www.quietpcusa.com/psuinstall.html http://compreviews.about.com/od/tutorials/ss/DIYPSU.ht

  Fleetblue 21:06 PM 18 Apr 11

Thank you Fruit Bat. Very full and comprehensive information. Much appreciated.

Advertisement

This thread is now locked and can not be replied to.

How to watch Sony Xperia Z5 launch live: Sony Xperia Z5 live video stream from IFA 2015 - watch…

1995-2015: How technology has changed the world in 20 years

How Google's new logo was redesigned

What to expect at the September Apple event: Apple announces 9 September event, sends out invites