Hi all. I've read most of the power supply guides on Tom's, but I still don't quite understand how to make everything work. Just wanted to make sure everything I was doing was right.
Right now, I'm sitting on a (hopefully) gaming PC that looks something like this:
Antec Case: http://www.newegg.com/Product/Product.aspx?Item=N82E16811129021 - 1x 120mm Fan, 2x 120mm LED Fan, 1x 200mm Fan
RAM: http://www.newegg.com/Product/Product.aspx?Item=N82E16820233202 2x 4GB Corsair DDR3 1600 sticks
GPU: http://www.newegg.com/Product/Product.aspx?Item=N82E16814130830 Nvidia GTX 650
CPU: http://www.newegg.com/Product/Product.aspx?Item=N82E16819115089 Intel i5 2.9GHz
Added to that, I have two external HD's, one portable, one not, a PCi IDE card for wireless, and a single internal HDD (7200 RPM).
The PSU calculator says, if I did it correctly, that I require a minimum of 246W with a recommended of 300W, so I was thinking of going for the recommended Antec ea-380D http://www.newegg.com/Product/Product.aspx?Item=N82E16817371033&nm_mc=AFC-C8Junction&cm_mmc=AFC-C8Junction-_-na-_-na-_-na&AID=10446076&PID=4176827&SID=qnk3to1k0qyb
However, I also then realized that not only minimum wattage, I have to consider the Amperage of the PSU so...
My GPU says it requires a minimum of a 400 Watt power supply. Not sure if this is the number I should be using, but I don't have any other number so I'll take 400 -> 400/12 = some 33A. I'll add some 15A for my other stuff, and 5A for a safety margin, so I should be looking at some 55A for a PSU, correct? Or did I do something wrong...
The Antec PSU says it can give a total of 336W -> so that means its total amperage for its 12V rails are 28A, which seems to be nowhere near what I require so...
Going backwards, 55A seems to be 55A * 12 = 660W output on the 12V rails, so if I get http://www.newegg.com/Product/Product.aspx?Item=N82E16817139020, which has a combined output of 636W on the 12V rails, I should be fine... Right?
Is my math correct? Or am I overthinking things/did something wrong somewhere. Please help!
Right now, I'm sitting on a (hopefully) gaming PC that looks something like this:
Antec Case: http://www.newegg.com/Product/Product.aspx?Item=N82E16811129021 - 1x 120mm Fan, 2x 120mm LED Fan, 1x 200mm Fan
RAM: http://www.newegg.com/Product/Product.aspx?Item=N82E16820233202 2x 4GB Corsair DDR3 1600 sticks
GPU: http://www.newegg.com/Product/Product.aspx?Item=N82E16814130830 Nvidia GTX 650
CPU: http://www.newegg.com/Product/Product.aspx?Item=N82E16819115089 Intel i5 2.9GHz
Added to that, I have two external HD's, one portable, one not, a PCi IDE card for wireless, and a single internal HDD (7200 RPM).
The PSU calculator says, if I did it correctly, that I require a minimum of 246W with a recommended of 300W, so I was thinking of going for the recommended Antec ea-380D http://www.newegg.com/Product/Product.aspx?Item=N82E16817371033&nm_mc=AFC-C8Junction&cm_mmc=AFC-C8Junction-_-na-_-na-_-na&AID=10446076&PID=4176827&SID=qnk3to1k0qyb
However, I also then realized that not only minimum wattage, I have to consider the Amperage of the PSU so...
My GPU says it requires a minimum of a 400 Watt power supply. Not sure if this is the number I should be using, but I don't have any other number so I'll take 400 -> 400/12 = some 33A. I'll add some 15A for my other stuff, and 5A for a safety margin, so I should be looking at some 55A for a PSU, correct? Or did I do something wrong...
The Antec PSU says it can give a total of 336W -> so that means its total amperage for its 12V rails are 28A, which seems to be nowhere near what I require so...
Going backwards, 55A seems to be 55A * 12 = 660W output on the 12V rails, so if I get http://www.newegg.com/Product/Product.aspx?Item=N82E16817139020, which has a combined output of 636W on the 12V rails, I should be fine... Right?
Is my math correct? Or am I overthinking things/did something wrong somewhere. Please help!