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Power supply question

Forum CPU & Components : Power Supplies, PC Cases & Case Mods - Power supply question

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chuck_85   09-19-2009 at 05:26:22 PM

hi all . i am about to buy new system and i want to know if my LIBERTY ENERMAX ELT400AWT can supply the phenom II 965 , MSI 790FX-GD70 mobo ,2 * ddr3 ram, ATI 4890 , and 4-5 sata drives with power.


Message edited by chuck_85 on 09-19-2009 at 05:30:53 PM
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sirkillalot   09-19-2009 at 05:39:06 PM
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kind of like driving a mini @ 90 milies per hour, yes it can, but i wouldnt

get a 550w- 650w cause your proberly update again in the nexted 3-5 years


Message edited by sirkillalot on 09-19-2009 at 05:39:41 PM
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Silver CPUs badge JohnnyLucky   09-19-2009 at 05:54:34 PM
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Here is a link to a Tom's Hardware article showing total power consumption as measured at the electrical wall outlet (mains) for a pc system with one 4890 video card installed:

http://www.tomshardware.com/review [...] 62-13.html

Here is a link to the xbitlabs.com technical review:

http://www.xbitlabs.com/articles/v [...] html#sect0

Finally here's a link to the anandtech.com technical review:

http://www.anandtech.com/video/sho [...] =3539&p=22

The 4890 video card is not a power hungry card. In theory you should be okay providing there is sufficient current (amps) on the 12 volt rail(s). However, I could not find a technical review of the power supply. In addition, it appears as if the power supply was first introduced in 2005 and that it is not 80+ certified.

The general rule of thumb is that a high quality 500 to 550 watt power supply with sufficient current (amps) on the 12 volt rail(s) can easily power a system with any single video card made.

Brands such as Corsair, PC Power & Cooling, Seasonic, and a few others have a reputation for high quality power supplies. They consistently earn high marks in technical reviews. They are very stable, reliable, and come with 5 year warranties.


Message edited by JohnnyLucky on 09-19-2009 at 05:55:34 PM
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chuck_85   09-19-2009 at 06:40:50 PM
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thanks all for your suport.i''ll try with the enermax 400 first.i just hope that nothing will be burn...and then if i must i'll buy another.

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ShtBrix   09-19-2009 at 06:44:03 PM
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Looks like a good PSU. 2 20a 12v rails, and Enermax PSU's are usually high quality.

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Bronze CPUs badge jsc   09-19-2009 at 08:32:44 PM
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ShtBrix wrote :

Looks like a good PSU. 2 20a 12v rails,


That's each rail max. Total is about 32 amps. That's about average for a good 400 watt PSU, but it's a long way from 40 amps.

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ShtBrix   09-19-2009 at 09:20:49 PM
- 0 +

I know.

:)


Message edited by ShtBrix on 09-19-2009 at 09:23:11 PM
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