I'm finally shrinking my setup into a SFF case, but I'm stuck on power. I need something reliable that won't sound like a jet engine under load. I’m aiming for at least 750W to handle a thirsty GPU and prefer modular cables for better airflow. Any favorites regarding noise levels and cable flexibility? What’s your go-to SFX PSU for high-end ITX builds?
For your situation, I would suggest looking at the EVGA SuperNOVA 850 GM, 80 Plus Gold 850W, Fully Modular or even the Lian Li SP750 750W 80 Plus Gold SFX. Everyone always jumps to the super expensive brands, but I honestly think these give way better value for the money!
I mean, SFF builds are already SO pricey, so saving fifty bucks here and there helps a ton. Here's why I like 'em:
1. Cable management: The EVGA cables are kinda stiff but they're short, so you wont have to jam a bunch of extra length into tiny corners.
2. Noise: Both have zero-RPM fan modes for low loads, so they're basically silent while youre just browsing.
3. Price: You get 850W for what some brands charge for 600W.
Seriously, don't feel like you gotta drop $200+ just to get a quiet build. These are fantastic options that'll leave more room in ur budget for that thirsty GPU!! gl with the build!
Honestly, I'd say go with Corsair if you want to avoid that jet engine noise. I originally tried a cheaper brand to save some cash, but it was sooo loud and basically ruined the whole SFF vibe. Swapped it for their 750W SFX unit and it's basically silent now. The cables are also super flexible, which is a lifesaver in tiny cases... seriously, don't cheap out here or you'll regret it like I did lol.
For your situation, I think you've really gotta look at the balance between price and performance cuz SFF parts get pricey fast. I've been super satisfied with my high-end ITX build lately and didn't have to spend a fortune. Here's a quick breakdown of what I'd look at:
1. Cooler Master V750 SFX Gold 750W Full Modular 80+ Gold - This is my go-to. Honestly, it's usually cheaper than the competition and the 15% fanless mode is nice. It stays pretty quiet, tho the cables are a bit stiff compared to others.
2. EVGA SuperNOVA 850 GM 80+ Gold 850W SFX - If you want extra headroom for a *really* thirsty GPU, this one is great value. It works well and I've had zero complaints with the noise levels.
Basically, the Cooler Master is the best value choice, but if you can find the EVGA on sale, it's a solid win. Both are fully modular which is literally a lifesaver for airflow in tiny cases. Good luck with the build!!
Honestly, I've been building in SFF cases for over a decade now, and the one thing you absolutely cannot cut corners on is the PSU. I've learned the hard way that a cheap power supply isn't just loud—it's actually a massive safety risk for your entire rig. If you're pushing a thirsty GPU, you gotta be careful about 'transient spikes' where the card suddenly draws way more power than its rating. Cheap units often fail to trip their protections correctly, which can literally fry your motherboard or GPU. So yeah, definitely prioritize safety and reliability over saving fifty bucks.
For your situation, I would suggest looking at the ASUS Rog Loki series or the SilverStone Extreme units. I've been running a high-end SFX-L unit from ASUS lately and I'm super satisfied with how it handles the load. It's basically silent because the fan doesn't even spin up until you're really pushing it, which is exactly what you want if you're avoiding that jet engine noise.
One thing to watch out for tho: make sure you check the clearance in your specific case. Some of these high-wattage units are actually SFX-L (the 'L' is for long), and they can totally block your cable management or hit your GPU if the case is really tight. Also, always use the cables that come WITH the PSU. Mixing modular cables from different brands is a huge mistake I see people make, and it'll 100% kill your components. Stick to the high-end brands and you'll be fine. gl with the build!
Big if true
Just saw this and totally agree! Like someone mentioned earlier about the safety risks and those scary power spikes, I was actually super nervous when I first moved to a tiny case! I spent forever worrying that a small unit wouldnt be able to handle my parts without catching fire or something crazy. I ended up getting a really high-rated model and it has been absolutely amazing for over two years now! I learned a few things during my first year of owning it:
Bookmarked, thanks!