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New power supply for my Dell Dimernsion 4550

I am looking to get a new power supply APEVIA ATX-CW500WP4 ATX 500W Power Supply 115/ 230 V UL, CSA, TUV, CE. The main connector for this unit is a 20 +4 point connection, my current connection is a 20x1, are these two compatible? If not then could you recommend a 500W power supply that is compatible? thanks

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Re: New power supply for my Dell Dimernsion 4550

A 20 + 4, and a 20 are industry standards. The latter for earlier mobo's and viceversa. I don't know (but I could possibly be surprised) of anyone that makes a 20 + 1....and more importantly you said 20x1 which equals 20. My suggestion is go with the 20 + 4 if for no other reason that it will come in handy when you upgrade (your old board or processor dies). As for 500w compatible power supplies check list in price order hundreds of power supplies sold by many different companies. If unsure drop an email to one of the companies or use their free long distance numbers to make sure (I am already). One other item...500w is a lot of is doubtful you need that much unless you are running a lot of equipment. There is a site on the net (and no I don't remember) but it is one of the power supply manufacturers where you can input you equipment and it calculates the wattage required. If you are a normal user, with an older board, 350w is more than enough in all probability and 450w would be enough for the foreseeable future. These manufacturers are touting 500w and up in the same fashion as disk drive mfg make bigger and bigger drives. As examples I have a 40 gb drive with 1000 songs, multiple operating systems, more software than 5 average users at least and I barely touch 18 gb. Bigger is not better...only more expensive...just ask all those soccer moms driving 80 lb kids to practice in 6000 lb vehicles at x miles per gallon at today's gas prices. Summary buy what you need with an eye on the future but (as always) the semiconductor industry goes (to the extent possible) in the opposite direction....wattage = heat, heat is no good for components, low power designs make sense....future boards, components and processors will take less power as they shrink the chip and anything beyond the current dual core processors (finally - I hated changing motherboards every few years to accommodate operating systems) will not be required by either the typical business or home user. My opinion obviously but I believe we have finally (less a truly reliable operating system) reached equilibrium. That's all (and probably too much)...have a good day...Tango

Posted on Jan 25, 2008

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Where is the fuse inside the power supply model fsp200

The unit is only 200watt and the fuse cost about $2,Thats if there one built into it,
The replacement power supply is about $20-00 NZD
Probably 20minutes to fix (for a novice) depending on their skill level and tools available,

BEST ADVICE Replace it

Power is something you dont want to mess with because it can kill.
The power packs are replaceable but people arent.
Be very careful and dont mess with the power.

I am an Electrician and I respect power.Misterdj

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Need fan for Okia 350 ATX

its the bearings in the fan starting to pack up, best way is to stop the fan spinning when its on with a small pencil and this should re- align the bearings in the fan and stop the noise, you will need a new powersupply the fan is on the way out, just a temp. fix for you to stop the irritating noise

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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
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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

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Dell tend to use their own power supplies which differ slightly from standard power supplies.
I suggest you take or send the Rocket Fish RF-550wps PSU back as it won't fit and order one from Dell themselves, at least then you will have a guaranteed fit.
Once you have your new power supply from Dell (or a Dell ATX power supply) it should be easy to fit in.
Post back if you need any more help.

Good luck and thanks for using FixYa!!

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3 beeps every few minutes

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Hi replace the fan by opening the power supply with a new fan if your power supply is under warranty period still get it exchanged.

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Yes you can replace the old defective power supply with the new atx but the problem is the size. It the size it fit to your computer nothing to worry because power supply now is almost the same output only the wattages changes.

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