Question about new psu install

I went out and purchased a thermaltake 430w TR2 PSU for my HP desktop http://www.newegg.com/Product/Product.aspx?Item=N82E16817153023&cm_re=430w-_-17-153-023-_-Product

the installation went fine and I have my pc running fine ( exept the optical drive which needs a 4 pin molex to SATA power adapter,just waiting on it to come in by mail.)

I have a question, is it normal for the 20+4 pin connector to be a PITA to remove?

when removing the stock psu, while pressing the release clip on the conector I had to apply alot of pressure and shake it from side to side and I'm sorta scared that I may have applied too much pressure.

my specs

430w PSU

Intel Core 2 Quad Q8300 @2.5ghz

8gb DDR3 PC3 ram

ATI Radeon 4650 1gb DDR2

Thanks for the quick answer, I was really worried I might have damaged it somehow

the only thing to complete my machine is that I need a 4pin molex to SATA cable to arrive by mail

currently running without a DVD drive ;(

the stupid psu has 2 sata ports....in the same cable around 2 inches from each other.... might aswell get an SSD and use that short cable