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Need help finding a replacement PSU

Forum CPU & Components : Power Supplies, PC Cases & Case Mods - Need help finding a replacement PSU

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Misidea   11-19-2008 at 01:15:49 PM

I'm trying to find a replacement for a Bestec ATX 250-12Z Rev D2 for an old HP pavillion.
I've got a radeon 3850 that needs more power than the default PSU is providing, (12v 14A, 5V 25A, 3.3V 18A), I need a bare minimum of 20A on my 12v rail, probably 24 or 30 to be safe. The problem is, I have never replaced a PSU before and I have no clue how to go about matching it to my case to make sure it fits, and is compatible.
Can anyone point me in the right direction?

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Crashman   11-19-2008 at 01:48:33 PM
- 0 +

Look at the back of the case and see if there's sheet metal surrounding the power plug. Most aftermarket power supplies have the plug located a little differently than most HP power supplies.

Reply to Crashman
Misidea   11-19-2008 at 02:20:18 PM
- 0 +

Thank you for the fast response!
It seems to be about a quarter of an inch of clearance between the PSU plug and the top/left part of the back plate. I'm no stranger to case modding and I'll snip it out by hand if I really have to. HP seems has a thing for having to use the jaws of life to take their cases apart.

This is the back of the case, if it helps in figuring it out
http://img237.imageshack.us/my.php [...] 381fp4.jpg

Reply to Misidea
Shadow703793   11-19-2008 at 02:44:31 PM
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A Antec or OCZ PSU will do the job. Take a look at this:
http://www.newegg.com/Product/Prod [...] 6817341012
OCZ StealthXStream OCZ500SXS 500W
$25 after MIR.

------------------------------ http://farm3.static.flickr.com/2617/3815217176_0a5be7955d_o.gif
http://farm4.static.flickr.com/3553/3818083596_1a772f7162_o.gif
 Reply to Shadow703793
evongugg   11-19-2008 at 02:58:28 PM
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Measure the size of the new PSU.
Make sure it fits. Or compare to the standard ATX size.

------------------------------ Google is your friend and Bob's your uncle
 Reply to evongugg
evongugg   11-19-2008 at 03:02:24 PM
- 0 +

450 Watt or greater power supply with 75 Watt 6-pin PCI Express® power connector recommended (550 Watt and two 6-pin connectors for dual ATI CrossFireX™)

Certified power supplies are recommended

http://ati.amd.com/online/certifiedpsu/index.html

http://ati.amd.com/products/radeon [...] ments.html

------------------------------ Google is your friend and Bob's your uncle
 Reply to evongugg
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