Question about HP Compaq Presario SR1750NX PC Desktop
Power suply atx 300-12z
Almost any standard ATX psu will fit this model, 86mm x 150 mm x 140 mm I would think. (PSUs come in standard sizes, most are ATX with depths into the case of 140mm upwards. Your old PSU s 140mm deep, so I should get one that also that deep. Higher powered ones can be can be as deep as 180 mm which wouldn't fit in your computer). It would be better if you bought a good brand one such as Antec, Corsair Silverstone, Seasonic, even an a Zalman or Akasa to name but a few, of at least equivalent power (it does not matter if it is a higher rated power, your computer will only take what it needs). Be certain that the PSU has enough of the correct type of connectors for your PC - Molex 4 pin power, minimolex for floppy if you use that, and SATApower if you have those, and 4 pin (I think for your pc) "P4" connector for your mainboard/CPU, and a 20+4 (20 pin with detachable 4 pin section for 24 pin m/b) pin motherboard connector. Be certain that it will accept the correct input voltage for your location (many will accept 90-240V ac now). You might try to get a second hand one.
Posted on Apr 12, 2014
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Posted on Jan 02, 2017
SOURCE: System will not power up
Here is a Compaq document will walk you thorough a fairly lengthy procedure that should solve your problem. Here is the link: http://h10025.www1.hp.com/ewfrf/wc/document?docname=bph06788&lc=en&cc=us&dlc=en&product=431080&query=presario%20sr1220&dest_page=product#N561 Let us know how this turns out or if you need any additional assistance.
Posted on Jan 02, 2007
Basically, I think that your power supply has gone bad if nothing at all happens when you turn it on.
To test this, disconnect the hard drive, the CD, and any other peripheral and try to start it.
All this assumes that when you push the on/off button, all you hear is yourself breathing--nothing at all from the computer.
Posted on Oct 11, 2010
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