[SOLVED] Which TFX PSU to get?

[70431]

AMD Athlon XP 3200+ (CPU)
M7NCG 400 (Motherboard)
ATI Radeon HD 4650 GIGABYTE 1GB (GPU)
3x1GB DDR1 RAM

I went to a power supply calculator
+3.3V 8.7A
5V 31.4A
186W
12V 10.3A
124W

Closes thing I saw was a TFX Seasonic 300W

 

[Eximo]

Unless you really need this specific PC for some reason, might be better off spending that money on a refurbished office PC.

$70 is basically halfway to something like a i5-3470, 8GB of DDR3, some SSD, and integrated graphics faster than a 4650.

Seasonic is a good brand, so I imagine that will do nicely if you want to purchase it.


https://www.newegg.com/dell-optiplex-3010-student-home-office/p/1VK-0001-54JZ2

 

[70431]

It said I 31A will I be ok with 20A

 

[Eximo]

Most PSU calculators can't really be trusted, they assume worst case loads that aren't very realistic.

I don't believe any of the power supplies I had around the time of the XP 3200+ were much bigger than 300W. Most GPUs had just started using a 4-pin molex connector for power.

It is true that older systems used more 5V power than computers do today. However, there aren't many TFX alternatives.

Are you certain that is the form factor you need?

 

[70431]

Yes, for this case I have.

 

[jonnyguru]

Closes thing I saw was a TFX Seasonic 300W

Is that actually in stock anywhere? Only thing I've seen is the SilverStone TFX 300W (which is also a good choice).

 

[70431]

Do I simply look at the total wattage for the 3.3v and 5v?

 

[jonnyguru]

Do I simply look at the total wattage for the 3.3v and 5v?

No. Those PSU calculators are B.S.

There is NO modern PC on EARTH that requires 31.4A on the +5V rail.

 

[70431]

Do I simply look at the total wattage for the 3.3v and 5v?

 

[jonnyguru]

Do I simply look at the total wattage for the 3.3v and 5v?

No. Those PSU calculators are B.S.

There is NO modern PC on EARTH that requires 31.4A on the +5V rail.

 

[70431]

My specs are not a modern pc

 

[70431]

Also thanks everyone for your comments , I appreciate all the input

 

[70431]

Is that actually in stock anywhere? Only thing I've seen is the SilverStone TFX 300W (which is also a good choice).

Yes seasonic Inwin and a few other brands are in stockandihave notrouble in finding this

 

[Karadjgne]

TFX doesn't have a standard 'shape' as such, almost all TFX are proprietary in some way or another, and that can especially include shapes.

What is needed is the old psu model number or the system brand/model number (like Dell optiplex 1900 or HP elite 2030 slim) etc so that a matching psu shape in a larger capacity with the right connectors can be found.

You aren't slapping any old TFX into a Dell for certain.

 

[70431]

Ah, I wasn't aware of this-- I'll just find out the dimensions of what it needs to be.

 

[70431]

I have a sexy In Win CE052 (which already included a power supply, but I didn't know too much about power supplies.)

https://www.newegg.com/p/N82E168111...e=inwin-_-11-108-513-_-Product&quicklink=true

 

[jonnyguru]

Yes seasonic Inwin and a few other brands are in stockandihave notrouble in finding this

Don't get the InWin. It's terrible.

 

[jonnyguru]

My specs are not a modern pc

Yeah. That Biostar board is quite old school. 😀

 

[Karadjgne]

Oof. That's going to be a challenging build. Since the case already comes with a somewhat lackluster 300w psu, I'd leave that alone, because you'll need the money to find a 1/2 height, slim gpu with AGP interface. I do believe that gigabyte is a bit too tall off the board to put the side panel back on.

 

[70431]

ah yes, you are right. haha. I have a low-profile card anyway or i have the onboard to go to. Not going to do much gaming on it anyway. Thanks for pointing that out-- Somehow I over looked that??? I was even looking at the length to make sure it fit but not height I guess-- lol