Graphics Card PSU Compatibility

Andrew0101

Reputable
Jan 16, 2016
3
0
4,510
Hello People,
Well, To Cut A Long Story Short, I Have A GX620 SFF And I Want To Buy A Graphics Card.

I Have Already Ordered The XFX HD5450 (It Will Surely Fit), However, I'd Like To Know If It's Gonna Work With My PSU Which Has A Max Output Of 275W.

According To: http://www.game-debate.com/hardware/?gid=411&graphics=Radeon%20HD%205450%201024MB The HD5450 Uses 19W Under Max Load, But, It Requires A 400W PSU :?

Assuming That: My CPU (PD 820) Draws 95W, That The Average 7200 HDD Consumption Is ~10W, That I Have 4 DDR2 @ 800MHz RAM Sticks (Which According To A Friend Consume About 5W Each) And I Have A DVD-ROM Installed.... Well.. There Are, Obviously, More Than 19W Remaining. However, It REQUIRES (Sorry For Caps) A 400W PSU.

So, Is It Going To Work, Or Is It Gonna Burst Into Flames And Then Explode (Or Simply Won't POST)?
You See, I'm A Good Man, I Don't Want To Create A Mass Destruction Weapon. I Just Want To Upgrade This Guy.

~Specs
Pentium D 820 @ 2.8GHz (Not OC'd)
3 GB DDR2 RAM @ 800MHz
Seagate Barracuda 7200RPM 160GB
Dell 0KH290 Motherboard
Unknown DVD-ROM (Laptop Size, Due To The SFF)
Thanks In Advance,

P.S. Do Not Answer If Your Message Will Be Like: "Eww, That Build S**ks, Get A New One Instead Of Upgrading This S**t". I Wouldn't Be Here If I Could Build A New One.