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power supply replacement

by southernfriedsquirrel / March 28, 2005 11:04 AM PST

I need to replace my power supply. Thing is, I'm pretty sure the model I have isn't made anymore. My question is - can I go with different specs? i.e., can I go with a higher wattage? Does the input voltage/ampage need to match? Basically, what do I have to look for in the specs of a purchase so it's compatible with my tower. I'm powering 1 hard drive, 2 rom's, audio, video card, and a floppy drive. I've found some really good deals online but I dont want to buy something I cant use.

Here's my current specs --

RED +5V 23A
WHITE: -5V 0.5A
BLUE: -12V 0.5A
ORANGE: +3.3V 15A
+3.3V & +5V 115W MAX

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Lookee here...
by Willy / March 28, 2005 11:23 PM PST

If you use a generic system or plain build using a generic power supply based on the ATX12V model, you can use any wattage. The higher the better as it uses "what it needs". Make sure the p/s unit mentions its for Intel or and/or AMD rated for a better fit on your system. Look should look at the physical size of things, but usually your basic replacement is very swappable, though a "mini" size is present. Also, expect some extra cables to daggle as you may not use all of them. Look here for some clues:
http://www.sparklepower.com If you have a local shop, take in hand your old p/s and then ask for a replacement, even if it costs more, its a done deal. HOWEVER, if you have a OEM or big vendor build system like Dell, Gateway, etc., make sure any replacament is rated for its use and/or model installation, but a higher wattage is still installable. Here sizing, wiring and/or special connects will come into play, so verify that.

enjoy Happy -----Willy

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PSU replacement info
by mackman / March 28, 2005 11:52 PM PST

There is someexcellent infor at Tom's hardware guide specifically an article:

Inadequate and Deceptive Product Labeling:
Comparison of 21 Power Supplies Created:
October 21, 2002

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power supply replacement
by jcrobso / March 29, 2005 12:03 AM PST

You supplied a lot of info about the PSU, But you didn't say the make of the PC or the PSU type AT or ATX. Yes, if you have a DELL they use a modified ATX PSU. John

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i think im going to go with a 300 watt 2 fan unit
by southernfriedsquirrel / March 29, 2005 5:52 AM PST

sorry guys, i didnt know i needed to supply that info. my cpu is a built system from a little local company, not a big vendor system. its pentium 3. I was going to go with a 300 watt pu from sparkle, i think.

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2nd reply...
by Willy / March 29, 2005 12:02 PM PST

In many cases 300W p/s maybe enough if only the it is a decently made one. These cheap units you see now just don't cut it. Understand also, that the wattage rating is for the "peak output" it can support but not on a *CONSTANT level*, so buy a larger p/s unit you can afford. I should have mentioned 350W is a good start, but 400W is better, if you buy cheap then get the highest wattage you can find. It wouldn't hurt your system to have extra wattage, it's just "available on demand". Try http://www.newegg.com or http://www.geeks.com for a good source of p/s units and selection. You'll see the varying price range.

enjoy -----Willy

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