Silverstone Gold 600 or 450 Modular

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Madpacket

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Jan 13, 2012
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I'm looking at buying a new power supply for a tiny ITX case called the Osmi.

http://hg-computers.eu/product/osmi-case-only/

https://www.pinterest.com/pin/564287028288233930/


The choices of power supply on my radar are:

SILVERSTONE ST45SF-G

or

SILVERSTONE SFX Series SX600-G 600W

I'm leaning towards the 600W because it comes already with a flat cable albeit long kit (routing will be difficult) where I'll likely have to buy a short cable kit for the ST45SF-G.

Things I'm curious about. How loud is the 600W over the 450W? Considering the system will be peaking closer to 300W from the mains is 450W enough or am I better off with the 600 to be around the magical 50% load curve, or does it even matter as these are gold rated power supplies? Will idle power consumption be much better with the 450W?

Do the fans on the 450 ramp up and get louder when under loads that hit over 50%?

Here are the rest of the components.

Core i7-4790K with low profile cooler (cooler TBD)
GIGABYTE GA-Z97N-WIFI motherboard or ASRock Z97E-ITX/ac
2*8GB 1.35 volt low profile DDR3 1600 (Crucial Ballistix Sport)
Sapphire Radeon Fury Nano GPU
480GB Intel 730 SSD
1TB 7200 RPM Seagate HDD, single platter.
Slim Bluray Drive (TBD)
140mm BeQuiet! system fan.

Any advice here would be appreciated.
 
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I don't know much about power supplies from Silverstone. But I know you should go with the 600w for that build. Other thing I know is they do offer a nice SFF cable kit for their PSUs. Is that why you decide to go with Silverstone? Depending on your case I just managed a Seasonic G360 PSU in a Thermal take Core V1 and that isn't a modular unit, works fine with zip ties. If you want silence, I see you're familiar with be quiet, their PSUs are fantastic and that new silent wings 3 is inaudible. Good luck!
 
Ryankirsch13 said:
I don't know much about power supplies from Silverstone. But I know you should go with the 600w for that build. Other thing I know is they do offer a nice SFF cable kit for their PSUs. Is that why you decide to go with Silverstone? Depending on your case I just managed a Seasonic G360 PSU in a Thermal take Core V1 and that isn't a modular unit, works fine with zip ties. If you want silence, I see you're familiar with be quiet, their PSUs are fantastic and that new silent wings 3 is inaudible. Good luck!
Click to expand...

I need an SFX sized power supply due to the size of the case (only 8.1 litres!). Silverstone appears to make quality modular units but I'm not partial to any specific brand. If there are alternative options available I will look there.

Why do you think 600W is a must?

FYI I have a system built in a Thermaltake Core V1 sitting on my desk, it has good airflow and decent room for cards but it's a little to big and a little loud for my liking.

I'm downsizing because I want room back on my desk! :)
 
I've had several Silverstone PSU's and they've all been quality units. I'd go for a 600W PSU since you're getting the Radeon Nano, and a high end processor. The 450W would be sufficient if the Nano doesn't exceed it's 175TDP and you don't overclock the CPU. I personally don't believe the Nano will actually stay under 175W load consistently and if you're here I'm assuming you're going to overclock this.

[H] is probably the best site for PSU reviews because they actually test them properly. Their review of the 600 is here if you haven't already read it (Silver Rating): http://www.hardocp.com/article/2014...x600g_600w_power_supply_review/9#.VgGcx9l3mUl
 
Madpacket said:
I need an SFX sized power supply due to the size of the case (only 8.1 litres!). Silverstone appears to make quality modular units but I'm not partial to any specific brand. If there are alternative options available I will look there.

Why do you think 600W is a must?

FYI I have a system built in a Thermaltake Core V1 sitting on my desk, it has good airflow and decent room for cards but it's a little to big and a little loud for my liking.

I'm downsizing because I want room back on my desk! :)
Click to expand...
Little big I can understand, but I disagree with the noise. The one I built, though no enthusiast capable, runs any game just fine and is damn near silent! Even with the Intel stock heatsink, I can't even hear it next to my head. It has a Phanteks 200mm in front, 2 arctic 80mm pwm f8 in back and an MSI R9 270
 
Sorry, as for the 600w being a must. With that build you're likely to see a good 360w being pulled from the wall which is 80% of the max rated output of that 450w unit. I have no real knowledge as to whether or not that is okay but I'd like it to be closer to 60% at full load.
 
IMO, I would go with the 450. It has good quality but the only downside is the fan is somewhat loud. Then again I don't think any of the Silverstone SFX/SFX-L fans are that great.

I'm considering to buy the same case and try to fit my SFX-L PSU. I don't plan on having a 2.5/3.5 HDD. If I can I might just go with 1 2.5 HDD.
 
Thanks for the responses guys. My Nano should be arriving today so I'll do some power measurements with an existing 430W 80+ power supply to get an idea on how much this system will pull under load. I don't plan on overclocking (if anything I'll be underclocking or undervolting the CPU) due to the size of the case. 8 litres is tiny :D

I'm am a little concerned with noise as the case will be a few feet from my head sitting beside my monitor. I don't think I'll pull as high as 360W from the wall (I'm guessing closer to 300-320W max) unless I run unrealistic loads like furmark + p95 together.

Anyways I'll update the thread with my findings. I'm still waiting for the case to ship so I have a few days to decide on which power supply to go with.
 
Quix thanks for the link on the 600G.

Looking at the 300W DC load tests the 600G hits 90% efficiency which is about as good as it gets. If my tests show this system around 300W DC the 600G does look very attractive however efficiency only drops a few percent when you climb all the way up to full loads hence why the 450W may be sufficient (or even better for idle watt purposes which is where this computer will spend a large part of its time)

http://www.hardocp.com/article/2014/08/26/silverstone_sfx_sx600g_600w_power_supply_review/4

Fun..
 
Ryankirsch13 said:
Little big I can understand, but I disagree with the noise. The one I built, though no enthusiast capable, runs any game just fine and is damn near silent! Even with the Intel stock heatsink, I can't even hear it next to my head. It has a Phanteks 200mm in front, 2 arctic 80mm pwm f8 in back and an MSI R9 270
Click to expand...

Yeah I overbuilt by adding a Corsair H60 watercooled 290X which contributes to the loudness. I have 2 arctic 80MM for the rear but haven't installed them yet. The 270 uses considerably less energy than a 290X so it makes sense noise isn't much of an issue for you.
 
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