Need Small psu to fit slim htpc

[stevenrunner]

Hello. I have an acer aspire x1700

it has a small psu of 220w

I need something at least 300w because i need to put the low profile radeon 4650 in it.

But this psu needs to fit my case

Here are pictures of how big it is.


http://www.newegg.com/Product/ShowImage.aspx?CurImage=83-103-195-16.jpg&Image=83-103-195-03.jpg%2c83-103-195-04.jpg%2c83-103-195-07.jpg%2c83-103-195-06.jpg%2c83-103-195-08.jpg%2c83-103-195-09.jpg%2c83-103-195-12.jpg%2c83-103-195-13.jpg%2c83-103-195-14.jpg%2c83-103-195-15.jpg%2c83-103-195-16.jpg%2c83-103-195-17.jpg%2c83-103-195-11.jpg%2c83-103-195-10.jpg%2c83-103-195-18.jpg%2c83-103-195-19.jpg%2c83-103-195-20.jpg%2c83-103-195-02.jpg&S7ImageFlag=0&WaterMark=1&Item=N82E16883103195&Depa=1&Description=Acer%20Aspire%20AX1700-U3700A%20Pentium%20dual-core%20E2220(2.40GHz)%204GB%20DDR2%20NVIDIA%20GeForce%20G100

The computer is pretty slim/small

http://www.bestbuy.ca/catalog/proddetail.asp?logon=&langid=EN&sku_id=0926INGFS10118149&catid=20217

I have never done this before, but i would love to know which kind of psu would fit my case

 

[WR2]

Looks like a TFX form factor - SeaSonic SS-300TFX 300W

Do your measuring carefully: SeaSonic SS-300TFX = Dimension: 175mm(6.9")*85mm(3.3")*70mm(2.8")
http://www.seasonicusa.com/tfx.htm

What are the measurements of the PSU in your case?

 

[stevenrunner]

i dont know!

 

[JohnnyLucky]

Here's a link to a whole webpage full of micro-ATX power supplies:

http://www.newegg.com/Product/Prod [...] e=MicroATX

 

[WR2]

i dont know!

It's your PSU - measure it.