I have anHP Compaq Presario SR1230NX desktop. The fan inside the power supply unit is making noise. I opened it and cleaned it but it still makes noise. How can I resolve this problem? Do I have to buy a...
Suggest you change out the power supply if this indeed is the fan noise.
1) Because it may not be a cracked mount for the fan casing. It could be the fan bearings are bad, allowing the fan blade center hub, to rub.
This would mean the fan is on it's way out, and you sure don't want a PSU without a fan!
(Will burn up in a matter of hours)
2) It is Not advisable to open up a PSU!
Inside are Electrolytic Capacitors. They are used in the Input stage as Filters for the incoming AC electricity.
They are used in the Output stage for the rectified DC electricity the power supply rectifier bridge converted.
Even after unplugged from power, Electrolytic Capacitors can hold a charge for Weeks, sometimes Months!
If your fingers create a circuit path with the terminals of any capacitor, the stored charge could be released to YOU!
If your fingers complete a circuit that one, or more capacitors are in, the stored charge could be released to YOU!
Bad shock to Fatal!
Replacement is the best advice.
Be safe, Live long.
[Your PSU is an ATX style of PSU.
90% of personal computers out there, use this style of PSU.
It is a common style.
This is HP Support, and the download page for the -
Parts Replacement Guide.
This guide has concise illustrations, and details of how to replace the power supply,
Scroll down to - Part Replacement Instructions - and left-click on it.
This is a PDF file. It may take a few seconds before you see the first page, after you click on this file name.
Watch the download progress bar, and let the file download all the way, before looking through it.
Power Supply replacement is at the end of the guide.
Should you need a recommendation of what power supply to buy, let me know. There are affordable, reliable, units that do not cost an arm, and a leg, and are decent quality.
(Post it in a comment]
Jan 04, 2010 |
HP Compaq Presario SR1230NX (PJ518AA) PC...