EVGA 500 W1, 80+ WHITE 500W Power Supply( 100-W1-0500-KR)

Still using it to this day. Can never go wrong with an EVGA PSU. Sure you’ll get a bad egg every once in a while, but most people will receive one that will last for well over a decade.

I'll admit I didn't have high hopes for this PSU, and was going to buy the Rosewill with a longer warranty for just $2 more, but it was going to take 5 days (with Prime--Amazon is getting a little lax in the shipping times--what happened to 2-day shipping?), so I ordered this instead since I could get it next day. I was replacing a mediocre 500W Coolmax power supply that had been in the PC, which runs 24/7, for 9 years non-stop. But it had become unstable and the MOSFETs were whistling. Luckily the ASUS motherboard shut itself down when it detected surges in the PSU 3.3v and 5v rails (not even in the 12v where it would be expected). So I had days to get it back running, and this was the quickest I could get a PSU.And I'm quite surprised. I never needed the 500w the old one was allegedly capable of, since this is just a PC that has operated as a media center since 2011 with just an AMD Phenom II X4 Black Edition with a basic GeForce 710 card in it and 3 spinning hard disks internally plus a bunch of USB accessories. Not massive power requirements, and 400W is more than enough.So on to the new PSU. First, it's the closest to spec I've ever seen in a PSU that isn't a top of the line 80PLUS Gold & Platinum certified models. Vcore obviously fluctuates since it is variable and why it's only 0.9V in the screenshot, but the 3.3V, +12V, and +5V readings are what I get from either the BIOS (so no system load) or even under load in Windows. The +5V has been between 4.97V and 5.04V (the old Coolmax was usually at 6V), while the +3.3V doesn't change but a few hundredths of a volt. The +12V, which is just a single rail compared to the dual rail of the old Coolmax, hasn't dipped below 12V at all, with it mostly sitting between 12.05-12.30V, with it fluctuating a bit more since the 12V rail gets a lot of use. The Coolmax never put out below 12.4V for the 12V rails, with it fluctuating pretty wildly between 12.4V and 13.6V depending on load.This thing so far has been rock stable for voltages. I was able to undervolt my CPU, RAM, and NB by a pretty significant amount compared to the setup I had. Now the CPU runs about 4°C cooler on average due to the lower and more stable voltage. And the PSU itself barely puts out any heat at all, and you can't hear the fan at all (unless you have no other fans in your case, at which point you would hear the fan. But it's very quiet even at full load.All in all, this base model 400N1 power supply has been amazing. If it lasts me only the 2 years of the warranty, I'd be a bit disappointed though not upset, but if it made it 5 years or more, even better.Still, I just can't believe how stable the voltages are and how close to spec they are. Now everything runs cooler and more efficiently. I would definitely try another EVGA power supply, even with the negative stories I've heard.The only downside would be that the SATA power rail doesn't have a ton of distance between the first and last connector, meaning in a tall case, it won't reach from the top optical drive down to a hard drive at the bottom. Luckily my DVDR drive has both SATA and molex on it, so it didn't ruin the day (since adapters on PSUs almost always fail catastrophically, I never use them). But if you need the SATA ports to stretch from the top of a mid-tower case to the bottom, this might get tight.I'm impressed overall. Never thought I'd be impressed by a base model, $30, 400W power supply, but I definitely am. Now if it doesn't fail in the first few years, it really will be my favorite PSU.

This purchase has turned out to be wonderful so far. I bought the power supply to replace the failed power supply in a Dell Optiplex 960 mini-tower (part number: F305P-00). It decided to go belly up after a graceful power down.The symptom of failure was that the PC's #3 light at the top of the case flashed dimly every few seconds or brightly if I pressed the power button. The machine wouldn't even attempt to fire up though. From past experience with this model and several others from Dell of the same era, I recognized the symptom.After doing some research online, I found several sellers on Amazon that were selling replacement PSUs. They products were in the new category but the sellers never specifically said the word "new" which I took to mean that these were pulled components from salvaged parts machines being sold for scrap. Rather than buy a used PSU I elected to try and find a standard PSU that would fit the case. Enter this EVGA PSU. It had the specs I needed and connectors I required and excess of both. Installation was a breeze.It only took 15 minutes tops. There are a few things to note. First off, the external power header is on the right side of the PSU when looking at the back of the PC and the EVGA is on the right. The header is close enough to the edge that it ended up under the edge of the EMI shielding. I could have cut the shielding with side cutters easily enough to allow the header to fit in perfectly, but I'm lazy. All it did was hold the shielding up in the middle 1/8" from the case. No big deal. It still works. You can see it in the picture though.Also worth noting is that the Dell uses the standard 4 screws plus an internal tab that springs up and fits in a slot in the side of the PSU. It won't interfere though. Just press it down extra hard close to the back of it to bend it into the case. No big deal. There are also 2 metal hooks in the case and 2 slots in the top of the PSU that the hooks connect with. The hooks, slots and spring tab combine to hold the PSU in the case while you put the screws to it. The PSU will lean down enough to get the screws started to fit around the Dell oddities.As far as the 20-pin and 4-pin connectors go, take a moment to look the connectors over. There are 2 white arrows painted on the connectors that indicate where they should meet. Press them together and hold them in that orientation as you insert the connectors into the single header. Also not a big deal.I didn't need the 4-pin Molex cable or PCI-E cable. Or for that matter the 2nd CPU header. I also had to twist the SATA power header wires a little to get them to fit with the close spacing of the hard drives on the bottom of the case. Not a big deal either. I hid the extra cables and slack in the empty floppy drive bay. That was all there was to it.My Dell Optiplex 960 Mini-Tower has a new PSU. I should be good to go until the next component breaks, though I don't expect this PSU to wear out before the motherboard does. It was a good buy!

Works well for a 500W and really helped my old PC survive just a little bit longer, a couple years longer actually before it kicked the bucket. But I've got it in storage now cause It does work pretty solidly, I noticed a dramatic smoothness when I installed it.