Upgrading HP Desktop Computer Pavilion 550-027C PSU, Need ADvice

Rodney_10

Commendable
Feb 16, 2016
2
0
1,510
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I recent purchased the pc mentioned in the title with an eye towards upgrading it to a mid to low end gaming rid. http://www.newegg.com/Product/Product.aspx?Item=N82E16883283099 Handy pc link for more info on it. I've already selected a compact and affordable video card in the form of this http://www.newegg.com/Product/Product.aspx?Item=N82E16814127783. I've taken measurements, and I THINK my case can handle a normal sized power supply, microatx ones look far too small, and are way under the measurements of the current anemic little power supply in my machine, but I'm nervouse and would just like some feedback on what would be a good 450 watt to 650 watt power supply that my machine could fit. I'm looking at two at the moment.

I think this one may be to small. http://www.newegg.com/Product/Product.aspx?Item=N82E16817256063
And I'm worried this one may be to big. http://www.newegg.com/Product/Product.aspx?Item=N82E16817151074
 
To replace the PSU just determine the form factor of the current PSU and replace with one that is of the same form factor. The most common PSU form factor is ATX. Based on the link below it appears that yours is an ATX but quite frankly it makes me nervous, there seem to be conflicting values for wattage on the web. Check the existing PSU to see if it matches the sizes and wattage at the link below.

http://h20564.www2.hp.com/hpsc/doc/public/display?docId=emr_na-c03830387
 

Rodney_10

Commendable
Feb 16, 2016
2
0
1,510
0
That's not quite my computer but it seems to be it's imediate predecessor. Much of the label on the power supply is in chinese making it hard for me to figure, but the measurements seem spot on
 
Okay, so it looks like ATX form factor. I just remembered one thing about HP, sometimes they use funny connectors on the mobo. If you can unplug the power cable to the mobo count the number of holes, make sure it is 20 or 24. HP has been know to use proprietary connectors with 12 or 16 which sinks PSU replacement. The mobo picture in the link I posted shows a 24 pin socket. If it is a 24 pin you should be able just buy an ATX PSU to replace.
 

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