Question about HP Compaq Presario SR5450F Desktop PC

3 Answers

I need a power supply model atx250w-12z

Compaq presario

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  • 46 Answers

Joel has the right track for you there regarding the PSU.

You may also want to consider Craigslist as people are often parting out these older pre-fabbed PCs once other parts have failed or they have upgraded. Another option would be to find a local office equipment liquidator. My office regularly replaces parts in some of the staff members' old Dells this way, and it is also relatively inexpensive.

If you are uncertain whether or not the PSU has kicked the bucket (your power supply has died), you can acquire a PSU tester from Amazon (Amazon com psu tester), other websites carrying various tech, or a local computer store (depending on your location... I like Micro Center myself). These range from $10 on up, but the the low-end ones will suit you just fine especially since this would not be a test you would likely run frequently nor do you intend to repair the unit.

On a side note; I notice that someone above suggested a previous post that was encouraging more power. I would not bother, if there is one thing you can count on with a pre-fab PC it is that the PSU essentially has a prescribed wattage. You will gain nothing by increasing the power for this PC. If you want a performance boost, toss your money at a Solid State Drive and perhaps additional RAM. These units leave little room for phasing or upgrading, but the SSD would be compatible and you would not believe the improvement in boot time, processing time, etc. Sorry, I realize that is really unrelated to the topic at hand... but felt compelled to mention the limited upgrade capabilities since someone was suggesting additional power. You could put a 30,000W PSU in your computer and it would not increase performance (though admittedly insufficient power will decrease it).

Oh, and sadly, only now do I realize that your post is from May... oh well, perhaps my thoughts will help someone else... or be fodder for others.

Posted on Nov 08, 2014

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  • 464 Answers

Part number you need is KJ383AA, KJ383AAR

they have the dimensions that fit your computer please look for your self. Measure your power supply you have.
New PC Power Supply Upgrade for Compaq Presario SR5450F KJ383AA Computer

Posted on May 14, 2014

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  • HP Master
  • 34,186 Answers

HP might be able to supply the power supply.

Posted on May 14, 2014

6 Suggested Answers

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Posted on Jan 02, 2017

  • 624 Answers

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

yammy_alf
  • 666 Answers

SOURCE: Compaq Presario SR1265CL replacement power supply

You can replace power supply the higher wattage the better.

Posted on Mar 21, 2010

byteguy
  • 2229 Answers

SOURCE: Compaq Presario sr1550nx wont power up. Green

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

puertobori
  • 7733 Answers

SOURCE: have a Compaq presario sr2023wm no power no beeps

You probably need to reinstall the OS.

Posted on Oct 19, 2010

Stalcup
  • 20 Answers

SOURCE: need the schematic for the

You do not ever attempt to repair a power supply. Between the high energy capacitors and the excessive voltage and amperage, there are no usable parts. You would have to buy the exact same model. Since this computer is about 5 to ten years old, you should be wise and do like the professionals do and get a new power supply. For Christ's sake, they are only 15 to 45 US. Be safe, do not electricute yourself for that price.

Posted on Jul 28, 2011

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1 Answer

Does a solid green light mean the power supply is ok when disconnected from motherboard and drives, ATX-300-12Z


Not necessarily. The green light usually just signifies power to the power supply. Amazon sells a cheap power supply tester that can verify everything on a power supply from old to new.

Jul 21, 2014 | HP ATX-300-12Z, ATX-300-12Z Rev. CDR, HP...

1 Answer

Where can i buy a compaq presario power supply


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.

12.April.2014

Jan 15, 2013 | HP Compaq Presario SR1750NX PC Desktop

1 Answer

Bestec power supply model ATX-300-12Z Rev BD green indicating light flashes on off when plugged in.


Most computer testing facilities will test your current power supply for free. A replacement is very inexpensive to replace. Bestbuy, MicroCenter, small computer shops and buy replacemnent from Amazon.com, newegg.com.. Just make sure you have the correct information for your replacement. The model number on the power supply would be your best bet in most cases. Good luck and have a great day. I buy power supplies as low as $15 dollars Generic

Jan 06, 2011 | HP ATX-300-12Z, ATX-300-12Z Rev. CDR, HP...

1 Answer

Bestec ATX-250-12Z Rev.C Green LD starts to blink


Most computer testing facilities will test your current power supply for free. A replacement is very inexpensive to replace. Bestbuy, MicroCenter, small computer shops and buy replacement from Amazon.com, newegg.com.. Just make sure you have the correct information for your replacement. The model number on the power supply would be your best bet in most cases. Good luck and have a great day. I buy power supplies as low as $15 dollars Generic

Nov 02, 2009 | HP Computers & Internet

1 Answer

How to use ATX-250-12z SMPS with 24 pin


Chances are that 250w power supply is not going to power a motherboard with a 24 pin connector, but you can try.
You will need to purchase a 20 to 24 pin adapter cable.
Google Search Terms: 20 to 24 pin adapter

Oct 27, 2009 | Gateway Emachine Bestec ATX-250-12E PS...

1 Answer

I have a Bestec atx-300-12az and i need to know which power supply harness to use on a Samsung model#HD103UJ hard drive.Thanks,Tony


Technical Details
  • Samsung Spinpoint HD103UJ 1 Terabyte SATA/300 Hard Drive General Features:
  • 1 Terabyte formatted capacity 7200 RPM spindle speed SATA/300 interface 32 MB buffer
  • 8.9 ms average seek time 4.17 ms average latency 3.5-inch form factor
  • Improved recording stability over temperature with PMR
  • Advanced dynamic FOD control for best data integrity
SATA Power3 Peripheral4 Floppy5 02 +3.3V (Orange)
03 COM (Black)
04 +5V (Red)
05 COM (Black)
06 +5V (Red)
07 COM (Black)
08 PG (Gray)
09 +5VSB (Purple)
10 +12V (White)
11 +12V (White)
12 +3.3V (Orange)
13 +3.3V (Orange)
14 -12V (Blue)
15 COM (Black)
16 PS-ON (Green)
17 COM (Black)
18 COM (Black)
19 COM (Black)
20 Blank
21 +5V (Red)
22 +5V (Red)
23 +5V (Red)
24 COM (Black)', CAPTION, 'Pin Signal (Color)', WIDTH, 150, BGCOLOR, '#000000', FGCOLOR, '#FFFFFF');" onmouseout="return nd();" href="javascript:void(0);">matx24pin.gif
atx12v.gif sata.gif drive.gif floppy.gif This ATX12V power supply is a 300W, five output unit with remote on/off, and UL, CSA, and TUV approvals. RoHS compliant. Original HP part number 5188-2625 used in many Media Center, Pavilion, and Presario computers. Also serves as upgrade for HP/Compaq part numbers 5189-3964, 5188-0131, 5187-5116, 5187-6114, 5188-0129, and 410507-001. Airflow drawn out of case into surroundings by 80mm internal fan. Built-in power status LED above AC inlent. 2 x 12 (24 pin) main board power connector. Includes two daisy chained Serial ATA connectors. Bestec model ATX-300-12Z CDR, also replaces ATX-300-12Z BC, ATX-300-12Z BD, and ATX-300-12Z CC. i trust this helps

Jul 15, 2009 | HP ATX-300-12Z (ATX30012ZBD) 300-Watt...

1 Answer

Flashing Green Light on Power Supply


get yourself a themaltake ps

make sure you remove the old one and take it with you to the shop or get the shop to do it for you if you dont have the expertise yourself.


hope this helps

Dec 31, 2008 | Compaq 300Wt Presario ATX Power Supply...

1 Answer

Compaq dead after power company shutdown period


Sounds like a blown fuse in the psu, replace the unit and you should be good to go.

Nov 30, 2008 | HP ATX-250-12Z, ATX-250-12Z Rev. H1, HP...

1 Answer

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.

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