300w

[Veljko44]

Is a 300w psu 80+bronze enough for Athlon X2 220 2.8 GHz

Powercolor HD 5670

4Gb ram

500gb hdd

[The Sloth]

don't use a low quality PSU, it will kill your system. what 300 watt PSU are you talking about? 

[Jumballi]

is it enough, more than likely, should you do it, no

[Veljko44]

5 minutes ago, nerdslayer1 said:

don't use a low quality PSU, it will kill your system. what 300 watt PSU are you talking about? 

I think its good, from acer machine which I bought in Switzerland...

[The Sloth]

Just now, Veljko44 said:

I think its good, from acer machine which I bought in Switzerland...

Probably now, OEM machines use good enough parts. 

[Veljko44]

10 minutes ago, Jumballi said:

is it enough, more than likely, should you do it, no

This is my second pc and last night my old psu died(I think it was codegen 500)and I have this one psu at home

[Veljko44]

2 minutes ago, nerdslayer1 said:

Probably now, OEM machines use good enough parts. 

So what you think haha?Btw that psu was together with i7 4790 and gt710

 

[The Sloth]

Just now, Veljko44 said:

So what you think haha?

 

At least a 80+ bronze PSU, i know it might seem like a lot of money but remember if your PSU blows up, it will take your computer( best case scenario) or set your house on fire. 

[Veljko44]

15 minutes ago, nerdslayer1 said:

At least a 80+ bronze PSU, i know it might seem like a lot of money but remember if your PSU blows up, it will take your computer( best case scenario) or set your house on fire. 

Haha why that?

[Man]

1 hour ago, Veljko44 said:

Is a 300w psu 80+bronze enough

It's something that's hard to 'predict' without looking at the amperage distribution between rails and voltages. The total rated output (300W in your case) is just one side of the picture. 

 

Take a look at these quote/unquote "450W" PSUs below. One's 12V rail is rated at 7A, other's at 10A and hence are able to provide just 84W and 120W respectively @ 12V! Remember that CPU and GPU, the two most power hungry components in modern ATX systems, draw their power from 12V rail(s). 

 

So... 

 

First, check the voltages at idle with a multimeter. All three main voltages (3.3v/5v/12v) should be within ±5% tolerance. If everything's okay then plug the system, stress the CPU and test the voltages again. The reason you've to test again is due to voltage dip or 'sag' (Look it up on Wikipedia for more info.). Voltage tends to drop down gradually as the components start to draw more and more power. 

 

If the PSU passess in both tests then it's 'most likely' fine. Remember that I said 'most likely', as opposed to 'absolutely'. You have to also consider AC ripple voltage as well, which can only be measured with specialized tools, such as an oscilloscope or a high-speed (2MHz or more) multimeter with true RMS.

 

Hope it helps.