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What PSU for this PC? (Low Power)

post #1 of 6
Thread Starter 
I need a power supply for my PC I have at the moment as the PSU is a bit too high I believe and the electricity bill could be lowered by it!...

My PC is

A7V600 Asus Motherboard (4 or so years old)
Radeon 9600 AGP GPU
AMD 3000+ CPU
512mb Value RAM
120GB Old Seagate HD

At the moment I have a 350WT No brand PSU and it works fine...

What PSU would be good for this PC? (Hopefully below 300W to save electricity)
    
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Seagate Barracuda 7200.10 Windows Vista Home Premium Corsair 620WT SLI Certified Modular ATX Thermaltake Kandalf VA9000BWS (Black) 
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post #2 of 6
You won't save electricity by getting a smaller wattage. You can only save electricity by buying one with a higher efficiency. If your computer only uses say 150 watts while idling, a 1000 watt power supply is only putting out 150 watts. Watts - more = better.

Most power supplies list their efficiency in the specs. Lower end ones are about 70 percent, and a high end PC Power and Cooling one is above 90 percent.

Edit: A high efficieny PSU will cost over 50 dollars, and might save you enough money that it would be like running 1 less light bulb. So, it would take a really long time to recover your investment solely from money, unless you were going to use it in a new build anyway.
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post #3 of 6
I would say 350w is the limit. you could probably go for 300W, but at the cost of the new psu, you may save more if you keep your current one and jsut turn off the pc when idle or not in use etc... it might prove more 'effective"
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post #4 of 6
Quote:
Originally Posted by TailChaser View Post
You won't save electricity by getting a smaller wattage. You can only save electricity by buying one with a higher efficiency. If your computer only uses say 150 watts while idling, a 1000 watt power supply is only putting out 150 watts. Watts - more = better.

Most power supplies list their efficiency in the specs. Lower end ones are about 70 percent, and a high end PC Power and Cooling one is above 90 percent.
I agree.

Just turn off your PC more often. You won't save much by getting a higher efficiency PSU IMHO.
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post #5 of 6
get a high efficiency seasonic 300W or HIPRO 350W both over 80% and cost more at start (~$50-80) but you will save on the electric bill
    
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post #6 of 6
Thread Starter 
Thanks for telling me all about PSU's anyway everyone!
Oh and my PC will be turned on for about 8 hours a day for the next 8 or so years I think as it's just for the internet... so I think it may save money over time...

Anyone know of any high effiecient 300WT PSU's then?

I have a budget of £40 ($80) at most.
    
CPUMotherboardGraphicsRAM
Q6600 Quad Core (G0 Stepping) Gigabyte GA-P35C-DS3R ATI Radeon Powercolour 4870 1GB 4 x 1GB (4GB's) 800mhz 6400 Geil Ultra Low Latency 
Hard DriveOSPowerCase
Seagate Barracuda 7200.10 Windows Vista Home Premium Corsair 620WT SLI Certified Modular ATX Thermaltake Kandalf VA9000BWS (Black) 
MouseMouse Pad
Logitech MX Revolution Slicksteel Pro 
  hide details  
Reply
    
CPUMotherboardGraphicsRAM
Q6600 Quad Core (G0 Stepping) Gigabyte GA-P35C-DS3R ATI Radeon Powercolour 4870 1GB 4 x 1GB (4GB's) 800mhz 6400 Geil Ultra Low Latency 
Hard DriveOSPowerCase
Seagate Barracuda 7200.10 Windows Vista Home Premium Corsair 620WT SLI Certified Modular ATX Thermaltake Kandalf VA9000BWS (Black) 
MouseMouse Pad
Logitech MX Revolution Slicksteel Pro 
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