Antec SmartPower 2.0 SP-400 400W ATX12V Power Supply

Pros: No problems for first 3 months.

Cons: Ran loud, then when rebooting computer system would not turn back on. Had to disconnect back power cable then reconnect after 20 seconds then it would work. Finally after doing this for 2 months it finally died completely and would not power on. Would not recommend this power supply. Replaced it with Antec NEO 550 and am very satisfied with that powersupply.

Pros: This is a quiet and RELIABLE PSU. I have never had in three years of BIY experience had one fail on me or my customers.

Cons: The first one of these Smart PS units I owned I thought had failed because its back fan wasn't turning. I found out quickly that it only came on when power consumption rose to a certain level. The con turned quickly into a PRO!

Overall Review: Calculate your power requirements for your build and make sure you have all the connections you need: SLI, extra +12V, 24 pin MB, etc. Check out Antec's PSU Calculator on their wbesite.

Pros: None.

Cons: I bought this 2 years ago and in seven months it failed. I called Antec and it took forever to get a replacement. When I got the replacement the fan was making a terrible noise, so I called and got another one. It lasted six months and I'm not replacing it with another one.

Overall Review: Antec's customer support is terrible.

Pros: Quiet, stable, reliable. Totally rejuvenated my older PC. Video card performance in games changed dramatically for the better - didn't even realize it was starving for power until I got this.

Cons: None

Overall Review: Antec has never failed me. Great products. Will never try an offbrand again.

Pros: Antec Power Supplies are very nice. I have used multiple different models and only ever had one die on me. Their quality of product is fantastic. If in doubt, always go for Antec.

Cons: None

Pros: Very easy to install. Runs cool all the time. Fan barely spins up at all.

Cons: N/A

Overall Review: Get this power supply! It'll power either 24 or 20 pin motherboards, so there is upgrade room in the long run.

Comments: I have used Antec powersupplied before but mostly the EPS12V versions for server MBs. This one is certainly quiet. The reason I am giving a 4 is for the price. It does not have PF correction (active or passive) so the price seems a bit on the higher side.

Comments: I always use Antec PS, just like I always buy from NewEgg. I got this PS as part of a complete package I ordered (PS,mobo, memory, etc) Assembled everything and had man,many problems getting the system to boot up stably. I tried switching processors, memory, vid cards, still plagued buy freaky problems. Finally RMA'd mobo and after a long wait had the same problem the the repaired mobo. Ordered different mobo, same freaky problems, not stable enough to get WinXP loaded before it freks out. Now I'm an experienced builder and I'm loosing confidence rapidly. Finally I figured the only thing that bother mobos had in comon besides being freaky was the ps. A scope revealed the 12vdc power line only running at 10.65 volts! No wonder!All that was wrong was the voltage selector switch on the bacck of the PS wasn't set 100% to he 115vac side. It was set far enough to clearly see the 115vac marking but not set 100% to that side. After setting the switch like magic I had 12.2vdc and all my freaky problems were gone, both modos now are rock solid. It's those little things that will get ya.