PSU compatibility

[casedymilar]

Will a 450W Cooler Master PSU be able to handle the Sapphire AMD/ATI HD 7770 OC Edition 1 GB GDDR5 Graphics Card??

[kalniel]

Yes, and probably the rest of the computer too. Not sure the quality of the PSU would put it on my list, but there's no compatibility problem.

[casedymilar]

My apprehension arises from the fact that the recommended PSU should be 500W. And as far as quality of my PSU is concerned, it is a 80 bronze rated unit.

[kalniel]

My apprehension arises from the fact that the recommended PSU should be 500W.

What is the recommended rating for the 12V rail? 500W across the whole PSU doesn't really mean anything - it's likely just a high figure to account for junk supplies that might just about match a quality 300W supply. The GPU is powered by the 12V rail, and the 7770 needs something tiny like under 10A I expect.

And as far as quality of my PSU is concerned, it is a 80 bronze rated unit.

And what about the quality of your PSU?

[petets5]

I always recommend a high quality PSU you dont want to get a cheap one that will damage components.

But in regards to your question yes it should but you shouldnt risk it

[stevie lee]

as I'm running a 7770 on a 4 year old Enermax 425w PSU and not had any problems in the almost year ive had it. I would say its perfectly adequate. if not overkill.

when I ran a even more power hungry 4870 on it, there was still no problems,

full details of my system setup are in my signature somewhere

[SOOMRO]

Yes u can run 7770 OC on 450W Cooler Master(I Called It Cooler Crap) but i will to be good to chage it.

[Bambooz]

HD7770 is rated 80 Watt, so it just barely even needs a PCIe power plug. The OC version will probably still be below 100W.
I'm running a i5 2500k with a HD6870 (151W) on a ancient Seasonic S12 II 430W. Said PSU has survived 3 PC "generations" and still works fine.

(bought it in 2007 for a Pentium4 530, rebuilt the system with a Core 2 Duo E4300 1.8 @ 3GHz on a new board shortly afterwards, upgraded that to a Core 2 Quad Q6600 2.4 @ 3.2 later on and recently threw that one out and rebuilt the system once again with the i5 2500k)