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So, the length can be 140mm max if I want to use a full-size GPU. And so far I haven't found any to my liking. Unless the SFX-L 500W version is absolute beast I'll either sell the Ncase or go with a mITX GPU and an ATX PSU.
Packaging by NewEgg wasn't great this time around. PSU was sliding around in the box. The air packet wrap was only on the top of the PSU box, not the sides, so the PSU would slide back and forth when you tilted the NewEgg shipping box.
Can't comment on the APC, the Cyberpower actually uses stepped approximation to Sine Wave as well. I have it with the highest capacity, with 900W+ of load at times (3 monitors connected, etc.). My apartment frequently gets 1-2sec of power outage / spikes /dips, and the Cyberpower has been doing its job just fine.
Thanks for chiming in Paul_Johnson, greatly appreciated !
Would it be possible to test on 230V input voltage in future reviews ? I believe Australia and most of Europe, which is quite substantial, use this voltage and some PSU's run better, some worse. So it might be worth doing the comparison, if possible.
Thanks for your insight Paul!
But what does it mean in real terms? Is the 100,000 hours MTBF exaggerated? Can there be noticeable issues with the power delivery within the 3 year guarantee period? I mean, you mention it in your article, and so people become concerned about it, but it's hard to draw conclusions about what effects there will be that the end-user will notice.
Yes, that's why I prefer reliable noise measurements (with a quality microphone in a controlled silent environment, using the exact same method every time to ensure comparability between reviews) + subjective comments on noise "quality" (always from the same reviewer).
Ah, I see. It would be nice if you could mention that in the review (in the noise section).
Ok, thanks for the clarification! This is of course not good. I hope quality components (top notch motherboard and graphics card) can tolerate temporary slight out-of-spec voltages, otherwise this may be a disaster (if the 12V rail ever goes down to 11.7V, after which a transient hits).
Unfortunately, I've also got some coil whine thrown in there when under light load/idle, or when the PC is turned off. It's not super loud or anything, but it's there. The only time I didn't notice it was when I was gaming.
For reference, my system specs are as follows:
Core i5 2500K @ Stock, Hyper 212+ Cooler, Fractal Define Mini w/ 2 x 120mm intake and 1 x 120mm exhaust Fractal R2 fans, Samsung 840 Pro 256GB, Gigabyte GTX 760 w/ 3 fan WindForce cooler, ASUS P8P67-M PRO. All system fans idle at about 1100RPM +/- 200RPM.
Thanks invidious94.
I thought I was the only one who could hear coil whine and I was wondering whether I was the extremely unlucky individual. Our setups are very different with the only two things being remotely similar being an Asus MB and a Sammy SSD.
I've placed the system away from me since I can hear it if it's on the desk beside me. Kind of defeats the purpose of such a sexy and small setup [Ncase M1] but at least the machine is still running.
I'll find out tonight how mine was packaged by them.
Fuck.That said, the noise I did hear sounded like it was from the bearing, rather than airflow.
Fuck.The noise, when audible (only from a short distance away), sounded a little on the scratchy side, occasionally making louder scratchy sounds.
Seriously, what the fuck?Unfortunately, I've also got some coil whine thrown in there when under light load/idle, or when the PC is turned off. It's not super loud or anything, but it's there.
Thanks for the advice, javidan! I suppose I'll run some tests with just the stock cooler. If it's getting too hot, then I'll look into other options. Thanks for your offer, but my hardware is a couple of generations behind yours, so I'll need to do my own stress testing anyway to be sure. I may want to OC somewhere down the line, so investing in a high-quality air or liquid cooling solution now would give me that flexibility. Do let us know if you run into cooling problems with your current setup.To be more specific inchikiboze: I have a good feeling you'd have no problems.
Ugh, you guys are starting to worry me.
Does anyone have a ST45SF-G with absolutely no buzzing at all? I tried a Seasonic fanless once and without the PSU fan all I could hear was the buzzing
The issue with the fan on the ST45SF-G is not the 80x15mm size, the issue is the bearing and rpm profile. they seem to have fixed that.
Thanks for your comments AFD
I presume 120V, but is your home properly grounded? And what is your ambient temperature?
The issue with the fan on the ST45SF-G is not the 80x15mm size, the issue is the bearing and rpm profile. they seem to have fixed that.
Now going on ~4 hours and semi-fanless fan hasn't stopped running once
Do you guys suggest putting a filter for the PSU if we're drawing air from outside the case?
The issue with the fan on the ST45SF-G is not the 80x15mm size, the issue is the bearing and rpm profile. they seem to have fixed that.
Notes on the AD0812UB-D91 for future reference.
Model number means: 80mm, 12V, ultra high speed, ball bearing, (D=) 15mm depth, 9 blades, driven by IC (no speed sensor, no pulse width modulation)
From the sticker we know it draws 0.36 amps. Comparing datasheets of similar products (-GL series), this current draw is very high.
Without speed sensor, it will be difficult to analyse voltage v rpm. Datasheet might be available in Eastern language, but can't find anything detailed using English search.
Ultra high speed? It would be very interesting to know why Silverstone picked a high speed fan for a low speed job, since it seems pretty stupid to me (considering that fans designed for high speed operation often tend to have lousy noise characteristics at low speeds). I hope the reason isn't "because it's cheap".
Probably because it needs to be able to push a lot of air at worst case thermal scenarios.
That's my guess too. 600W crammed into something that tiny? At 88% efficiency at 600w load, that's 80w+ of heat to dump. The heatsink area available isn't huge, and not everything gets a sink, so you need to move a lot of air through to avoid cooking everything.
The maximum speed at 12V is 4500rpm, but that doesn't mean they actually run it at 12V. It runs between 739rpm and 2290rpm.
That's my point exactly: a fan with an insane maximum speed often tends to have lousy noise characteristics at low speed.
So why did they not pick a fan with let's say 2500 max rpm instead, that's my question.
Not always. For example, the higher powered GTs and San Aces run quietly at 4V.