EVGA 450BV 450W Power Supply

PROD LINK: 450BV Product Page
PRICE: $34.99 @ EVGA
Price is at time of testing!

Performance (40% of the final score) – those of you expecting a perfect score in this category are apt to be disappointed… this is not that kind of a unit. We are literally on the other side of the market from units that nail my performance score. That being said, this unit did a lot better in many ways than I was expecting. Ripple control was just good enough to be called excellent, so no deduction there. The same goes for efficiency, because we got Bronze right where we needed to. But the fun stops there. With an average of 1.82% in the hot box, voltage regulation is two steps away from mythic level so there will be a full one point deduction on that front. It will be joined by another full point deduction on the power on spike tests. But that will be all, because I found nothing else to complain about. Except, perhaps, for the lousy 12V crossload results. There, I need to let these group regulated units slide a bit because they just aren’t designed to handle those situations. That means this area gets a solid 8.

Functionality (20% of the final score) – this category is going to see a few deductions, too. No bargain unit is positioned well to nail this score. First, we had a Berg connector hardwired to the Molex cable. Half a point gone. Not even slightly modular? A full point gone. 20 gauge wire on the ATX and peripheral cables? Half a point goes off for that. Light on accessories? You have to remember this is a bargain unit there, but even so they could have tossed in a few cheap zip ties. I’ll take half a point there. 7.5.

Value (20% of the final score) – this might be tricky… seems this unit was sitting on the shelf long enough to go rare on us. Even so, EVGA’s site has them priced at $34.99. That’s a crazy low price for anything built even this well, and quite far below the budget I would personally set for any power supply I mean to actually use. At NewEgg, it competes roughly with the also thirty degree rated Corsair VS450 and a bunch of even cheaper units I, quite frankly, would not touch with a ten thousand foot pole. NewEgg no longer lists this unit, but if they did I would call it probably the best option of the super cheap stuff they have at this power level. But I wouldn’t buy one. The newer CX450 is ten bucks more and has a forty degree temp rating. Probably a better fan, too. Thirty degree max temp ratings don’t belong in my computers. So, I’m going to go a little harsh and do and average 5 here. Spend more money than this, people.

Build Quality (20% of the final score) – I was surprised to find this unit built as well as it was. At this price, good build quality just doesn’t happen too often. That said, we do have some points to remove. Soldering was not flawless, so half a point goes gone. The fan looks to be really iffy and is only backed by a three year warranty, so a full point goes. Another half point comes off for the eighty-five degree main filter capacitor. Finally, yet another half point comes off for using the second tier Teapo capacitors in general. I’d do another deduction for lack of heatsink on the bridge rectifiers, but the hot box showed this unit not struggling in the heat and the unit does have adequate protection. So, we’ll stop with a 7.5.

EVGA 450BV 450W – Scoring
Performance 8
Functionality 7.5
Value 5
Build Quality 7.5
Total Score 7.2


I’m going to be straight up with you folks… if you’re building a computer with the idea of skimping on the power supply so you can get a better video card or bigger SSD, don’t. You should not be budgeting the dollar figure this thing costs if you want anything to hold up over the long haul. Is this a gutless wonder? No. There’s a whole world of absolute crap below this one waiting to burn your house down. But it’s not too good, either. It’s better than a swift kick in the skull with a frozen boot, but don’t plan on running it long if you do have one. And don’t expect full power in any reasonable application, because the thirty degree temp cutoff is probably not going to allow it. Mine might have done thirty-three without shutting down, but there’s no guarantee the next one will. Plan on maybe getting 350-400 watts here in the real world.


  • excellent ripple control
  • very good voltage regulation
  • super cheap
  • good documentation with honest temperature ratings
  • good design for old 5V CPU based systems

The BAD:

  • very low max temp rating for full power


  • questionable fan with short warranty
  • second tier capacitors
  • soldering could be better
  • low temp rating on primary capacitor
  • wire gauge is light on the ATX and peripheral cables

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