Question about HP ATX-300-12Z (ATX30012ZBD) 300-Watt Power Supply

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Getting a new psu

Hi, i would like to know what i can replace my current hp atx-300-12z rev CDR 300-watt power supply with. I am looking for something with the same connectors with the added 2 6pin pci-e connector. This is b/c i am adding a new video card xfx 9800gtx+ videocard and it needs 2 6pin pci-e connector to power it up to it's highest potential. I need the power supply to be the same demensions because all of the websites i been to, it has alot of different dimensions and i measured and i think i can be incorrect. One last thing is can you look for a power supply about 700 or 600+ and is less then 100 dollars. Thank you

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  • beau1121 Feb 05, 2009

    oh yea i forgot to mention my computer. HP Pavilion m7570n

  • beau1121 Feb 05, 2009

    sry the thing psu can't work. there is no vent on the top/ hole for fan on the top... the only slot for fan is only on the back of the case

  • beau1121 Feb 05, 2009

    sry this power supply can't work, the only vent for the power supply heat to go is out the back of the case

  • beau1121 Feb 05, 2009

    i'll go check it out but do you know the dimensions... i thought i saw it somewhere but now i can't find it...

  • beau1121 Feb 05, 2009

    nvm... found it

  • beau1121 Feb 05, 2009

    it's kind of a stupid question but... for the psu above what is length and width cause i think that is why differenent websites are giving different numbers... like say power switch side is the... and the other side is the...

    thank you

  • beau1121 Feb 06, 2009

    thanks alot people i'm gonna go but this one, just one more question but it doesn't really belong in this section but i'm just gonna ask it for the hell of it... and don't feel like making a new topic

    i'm kinda deciding this but i might buy a new case but my question is about the back panel on the back where the connectors go like audio... the intergrated things on the motherboard ... is it removable because my mother board isn't like that at all... just never new the question

  • beau1121 Feb 06, 2009


  • beau1121 Feb 06, 2009

    like this one it kinda looks removable so thats y i'm wondering and if it does i'm freaken happen... lol

  • beau1121 Feb 12, 2009

    like this one it
    kinda looks removable so thats y i'm wondering and if it does i'm
    freaken happen... lol

  • beau1121 Feb 12, 2009

    already bought a new psu listed above... the 700watt i just need to know if the thing is removable... always come home after 600est so can't make call... any help?

  • beau1121 Feb 13, 2009

    like what i mean is the panel where all the motherboard intergrated things go like mouse, keyboard... monitor, usb, ethernet... and so on like because on that model the "panel" looks removable



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I'm not sure about the size, but this may be what you are looking for:

Most power supplies are a standard size, but I'm not sure about your model of HP. The from the photos on the HP site, it looks like a standard mid-tower case and it should fit.

Posted on Feb 05, 2009

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  • Chris Feb 05, 2009

    I have a similar PSU in my PC. The fan draws the cool air in from the outside, rather than take the hot air from inside the case and blow it across the hot circuits in the PSU. The fan actually faces downward to help circulate the air.

    I still think it would work for you, but you'll have to decide.

    Good luck!

  • Chris Feb 05, 2009

    From the link I posted:

    150 x 140 x 86mm (W x L x H)

  • Chris Feb 06, 2009

    If you are looking at buying a new case, I'm not sure that you'll be able to transfer your current motherboard into it.

    The connector cover panel on the case is interchangeable, but it is usually supplied with a new motherboard. Most brand name PC's have custom panels that aren't removable.

    You *might* be able to make it work without the back connector cover panel, but it will not create optimal airflow for cooling.

    I would not reccommend it.

  • Chris Feb 12, 2009

    That's a nice case. You should be able to make it work, with the exception I noted about the connector panel. I can't say for sure if that will work with your current motherboard or not.

    Keep in mind... doesn't look like that one has a PSU, so you'll have to buy one of those too. Add at least another $100 for that.

  • Chris Feb 12, 2009

    I'm not sure I know exactly what you mean by removable, but I would say that the answer was "yes". You can take it out of the case after you install it and put it into a different one. Just 3 or 4 screws hold it in place.

  • Chris Feb 13, 2009

    Yes, on a case like that, that port panel would be. Normally when you buy a new motherboard, the panel with the correct cutouts would be included. Since (I think) you are talking about moving your existing motherboard into it, you won't have that panel, but it should still be in the right place.



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