The most powerful fanless PSU?

PSUs: The source of DC power for all components in the PC & often a big noise source.

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quest_for_silence
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The most powerful fanless PSU?

Post by quest_for_silence » Mon May 11, 2015 1:55 pm

KRPW-FL600W/92+

Is there any japanese forumer who can talk about that PSU and its availability?
Regards,
Luca

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edh
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Re: The most powerful fanless PSU?

Post by edh » Tue May 12, 2015 4:06 am

It's not the only 600W fanless. There is the very niche SilentMaxx 600W watercooled PSU:
http://www.watercoolinguk.co.uk/p/Silen ... 20802.html
Raijintek Metis: i5-6400, Scythe Ninja 4, Asus Z170i Pro Gaming, 8Gb RAM, GTX 950, Crucial 250Gb M.2, Seasonic X-400

quest_for_silence
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Re: The most powerful fanless PSU?

Post by quest_for_silence » Tue May 12, 2015 6:50 am

edh wrote:It's not the only 600W fanless. There is the very niche SilentMaxx 600W watercooled PSU:
http://www.watercoolinguk.co.uk/p/Silen ... 20802.html

Thanks for pointing it out.
Unfortunately that one looks like a fake 600W unit: apparently on its label it's stated that it cannot exceed 506W of combined power.
Regards,
Luca

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nagi
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Re: The most powerful fanless PSU?

Post by nagi » Tue May 12, 2015 10:50 pm

quest_for_silence wrote:
edh wrote:It's not the only 600W fanless. There is the very niche SilentMaxx 600W watercooled PSU:
http://www.watercoolinguk.co.uk/p/Silen ... 20802.html

Thanks for pointing it out.
Unfortunately that one looks like a fake 600W unit: apparently on its label it's stated that it cannot exceed 506W of combined power.
Plus SilentMaxx so far doesn't have a stellar record of fanless PSUs: their 400W model had a plethora of problems (buzzing and overheating mainly).

BTW, the 400W Seasonic model can run up to 600W also, according to torture tests. It has a hard off at that point, but it can do it. See my sig for a high-end system with it. I'm probably stressing it to about ~500W. (It has 2 HDDs, 4 SSDs and an HDMI capture card)
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quest_for_silence
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Re: The most powerful fanless PSU?

Post by quest_for_silence » Wed May 13, 2015 3:07 am

nagi wrote:See my sig for a high-end system with it. I'm probably stressing it to about ~500W. (It has 2 HDDs, 4 SSDs and an HDMI capture card)

OT: actually drawing about 500W from your 400FL is possible under some circumstances (either with heavy OC and heavy voltages for both CPU/GPU, or when benchmarking/stress-test with Linpack/Prime/Furmark), but not that much probable in a relatively quiet system (if your one were so).

But broadly speaking, overload capabilities shouldn't apply: the platform used for the above mentioned "japanese" PSU can be usually overloaded by about 25-30%, but I wouldn't consider it as an about 750-800W PSU.
Regards,
Luca

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cmthomson
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Re: The most powerful fanless PSU?

Post by cmthomson » Wed May 13, 2015 5:27 pm

nagi wrote:(It has 2 HDDs, 4 SSDs and an HDMI capture card)
A typical HDD draws about 10W; a typical SSD draws about 3W; capture card maybe 20W.
The power in your system is being sucked up by the i7 CPU, the graphics card, and their VRM's. Easily over 200W at full load.
i7 4790K [email protected] GHz, ASUS Z97-PRO, 16GB G.Skill 2400C10, Intel 335 240GB SSD + WDC EFRX 1TB, Internal i7 graphics, Antec P180 case, Seasonic X-400 fanless PS, Megahalems CPU HS, Nexus 3-pin & AC PWM fans < 600 RPM, AcoustiPack foam, homemade ducts.

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