Hi guys,
as you may know I had to buy new PC parts because my old broke.
Well everything is running smooth, however my BeQuiet 500w Dual Rail PSU is getting warm. Note: warm! not hot! and it doesn't smells bu I can still touch the PSU while it's running, it's just warm.
The thing is, it warms up the air under my desk and after a while all the warm air blows in my face which is not that great >.>....

My desk has a partially closed back so the air can't flow that easily backwards but don't worry I left enough space between back wall and PC.

I just wanted to know if it's normal for a powerful PSU to warm up the surrounding air or if my PSU is too week.

It's currently powering:

CPU: AMD x4 Phenom 9850 Black Edition @ 2.5GHz
Mainboard: Gigabyte MA-770-DS3
RAM: 2x 512MB Corsair 1x 1GB Kingston
Graphics: SAPPHIRE RADEON HD4850 512mb
HDD: 1x IDE 180GB 1x IDE 40GB 1x SATA 80GB