Updrade question.

[Xandallia]

I've got this video card:
Diamond 5770PE51G Radeon HD 5770 Video Card - 1GB GDDR5, PCI-Express 2.0, CrossFireX Ready, Dual DVI, Display Port, HDMI at TigerDirect.com
and this PC:
HP Pavilion p6-2000 Desktop PC series -  HP Pavilion p6-2049 Desktop PC Product Specifications - c03075210 - HP Business Support Center
and I need to know if I can use the video card on my PC before I open the card and can't return it. Any help would be appreciated.

 

[Trotter]

Your computer has a 300W power supply but that card requires a 450W or better. To use the card you will have to replace your PSU.

 

[Xandallia]

Thanks. Is there anything I need to know about power supplies? Will this one work well with my computer and video card? Newegg.com - Rosewill Stallion Series RD450-2-SB 450W ATX V2.2 Power Supply

 

[MindoverMaster]

Never skimp on a PSU. You risk harming all your hardware.

Read this: http://www.techist.com/forums/f75/read-first-updated-power-supply-guide-221773/