How Strong Should My Replacement ATX Power Supply Be?

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Discussion Overview

The discussion revolves around determining the appropriate wattage for a replacement ATX power supply for an older computer system. Participants explore various power supply options and considerations related to cost, compatibility, and component safety.

Discussion Character

  • Technical explanation
  • Debate/contested
  • Homework-related

Main Points Raised

  • One participant suggests that a 500W power supply would be sufficient based on the listed components.
  • Another participant mentions that a smaller power supply (400-450W) could suffice since there is no dedicated video card, but notes potential issues with future compatibility.
  • A later reply clarifies that the motherboard requires a 20-pin and a 4-pin connection for the CPU, indicating specific compatibility needs.
  • Concerns are raised about the quality of cheaper power supplies, with one participant emphasizing the risk of component damage due to power fluctuations.
  • Participants discuss the challenge of finding affordable power supplies in the context of financial constraints, with one expressing the difficulty of sourcing supplies locally.

Areas of Agreement / Disagreement

There is no consensus on the exact wattage needed, as participants suggest different power levels based on varying assumptions about the system's requirements and future use. The discussion reflects differing opinions on the balance between cost and quality.

Contextual Notes

Participants express uncertainty regarding the availability of power supplies in their respective locations and the implications of choosing lower-quality options.

Who May Find This Useful

This discussion may be useful for individuals seeking advice on selecting a power supply for older computer systems, particularly in contexts where budget constraints are a significant factor.

Robot3
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Hello.
Excuse my poor Englishe.
My power suply stop working, and now i use from neiborgh old suply, but this is too low for all component on my computer.
So will you tell me haw strong pover suply i need to use?
My computer is old, and use ATX suply.
I have, matherboard, 3Gb rams, cameras, microphone, one dvd rw disc, now i use one hard 80Gb, but i have twoo moor, one from 80 Gb too, and one of 250Gb, which i can use, because i don't have enough power in suply. :S
Their is modem too, and rest of standard PC hardver.
I plan to buy new one, but don't know have strong i need.
 
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Given what you have listed, it doesn't look like you need too much power. I would suggest getting a 500W power supply.

My personal preference is Corsair branded power supplies.

get this one or something in a similar range.
http://www.newegg.ca/Product/Product.aspx?Item=N82E16817139027
 
Last edited by a moderator:


Thanx on advice, this is old computer, and don hawe too much need for power.
 


The good part about this power supply is that it is a 20+4 pin so it will fit several different motherboards. If you do get a new computer in the future, you can always remove this power supply and put it in the new one and save a little bit.

Given that you don't have a video card, you can actually use a smaller supply (maybe 400-450W) but then it will be harder to reuse (newer computers generally have a higher requirement) or sell second hand. 500W is generally a good middle ground.
 


I have video card, one old Radeon. But this i put within rest of pc hardver, so i don't nead to write all component. My motherboard use 20 pin for it self, and 4 pin for CPU, because it use ATX suply. But this suply you send link is little to expend for me. In my Coutri is crises, and i don't work. :S
Do you know where to find suply which are not so expensive?
 


Here's another power supply option for you
http://www.newegg.ca/Product/Product.aspx?Item=N82E16817171031

The reason i suggested the corsair is because they make high quality power supplies. The power supply is the most important and valuable component on your system because it provides the power. Any large fluctuations in power can damage components that are more expensive like your CPU or your motherboard.
There is a risk involved with taking cheaper power supplies and that's why I didn't suggest this one first.

It's not as good as the corsair but it is better than the generic ones. If I was you, I wouldn't go any cheaper than this because the quality of the device is questionable.
 
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This is moor aceptable suply. And it is with 500 W.
I know this about fluctuation, and damaging component. But if you don't have mony, you cand buy best, and need to find moor aceptable even if it have greater risk of making damage. Now i onlie need to find this suply in my country. :S And this is pain.
 

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