I do not see such options in BIOS, and for a long time have not seen the programs (like overclocking GPUs) where you can do that in Linux manually.
Water cooling of 0.5-1 kW processors
- Thread starter DanRR
- Start date
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So the claims above like "Put 10k+ rpm 120mm fans on that single 360cm radiator and it will easily cool the next 3 generatiosn of the largest epyc cpus
" are wrong?now 6A ? what about 25W-36W ?
sure.
supermicro server have 6/7 80mm FANs 36W each
Molex probably more resilient, but for one 4pin PWM connector supplying power for three 8K motors consuming 25W each that would be tough, isn't it?
now i understand what you want to do. there may be a fuse on the motherboard to prevent fire.
there are gadgets for that application, one 4pin in, multiple out, powered from Molex/Sata power connector.
( FAN Hub )
We were speculating about three ARCTIC S12038-8K per water radiator, which consume 26.2W each based on Amazon.
no. just if you replace stock FANs with Noctua cooling will not be better.So the claims above like "Put 10k+ rpm 120mm fans on that single 360cm radiator and it will easily cool the next 3 generatiosn of the largest epyc cpus
Why i386 and TrashMaster claimed the opposite ?
As to FAN hub - that was great advice, thank you very much
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Two. For each water cooling. Each cooler has 3 fans, each fan 26 Watt 78W/12V = 6 A current
do they ?
i read they have better results with Arctic 4k FANs.
what i say is: if you replace a FAN with a Noctua same class the cooling will not be better,
Noctuas have usualy (too)low min.RPM and low max. RPM.
But isn't Arctic 4k way higher class than Silverstone 360 stock? And 8k one will simply rip it, blow and scatter its pieces?
Regarding power for high end fans: This is a big deal I ran into and tested a number of different solutions. The simplest was to buy molex splitters for ultra high power >25w fans like this:
By splitting the power delivery and the PWM signaling separately, you can get past the amperage limits on those 4 or 6 pin fan headers most high end server boards use AND still have full control of fan speed from the BMC or your favorite fan control app.
Then for mid-power fans IF your motherboard cant rock the 3 amps per plug that w790e-sage board can you can use a lesser splitter:
Now, the big boys can just fab their own power solutions for servers like this monster for 9+ of those delta badboys:
And I tried to get one, but chinese translation on ali isnt great ;<
EDIT:
Also, if you are going to use cables or fan hubs anywhere, make sure you check each individual component for its amp rating AND always build in a generous safety factor.
Just because your single PSU cable has 3 moles plugs on it doesnt mean you can use all 3 at max power at the same time for extended periods of time. Look at the first pic I posted, I used many cables with a single fan on each.
Most the fan hubs I tested would max out after ONE of these fans attached making them next to useless. And the SATA plugs were dubious enough I backed out of that approach.
Double edit to address other stock silverstone fan questions:
I updated my earlier post on page 1 to add the silverstone specs to the noctua and arctic specs. The TL;DR is Static Pressure - Arctic: 11.45 mmH2O while Silverstone is 3.09 mmH2O Why? Silverstone is lower rpm at 2800ish while Arctic is 4k with more aggressive blade pitch to scoop that air and jam it through tiny holes faster.
By splitting the power delivery and the PWM signaling separately, you can get past the amperage limits on those 4 or 6 pin fan headers most high end server boards use AND still have full control of fan speed from the BMC or your favorite fan control app.
Then for mid-power fans IF your motherboard cant rock the 3 amps per plug that w790e-sage board can you can use a lesser splitter:
Now, the big boys can just fab their own power solutions for servers like this monster for 9+ of those delta badboys:
And I tried to get one, but chinese translation on ali isnt great ;<
EDIT:
Also, if you are going to use cables or fan hubs anywhere, make sure you check each individual component for its amp rating AND always build in a generous safety factor.
Just because your single PSU cable has 3 moles plugs on it doesnt mean you can use all 3 at max power at the same time for extended periods of time. Look at the first pic I posted, I used many cables with a single fan on each.
Most the fan hubs I tested would max out after ONE of these fans attached making them next to useless. And the SATA plugs were dubious enough I backed out of that approach.
Double edit to address other stock silverstone fan questions:
I updated my earlier post on page 1 to add the silverstone specs to the noctua and arctic specs. The TL;DR is Static Pressure - Arctic: 11.45 mmH2O while Silverstone is 3.09 mmH2O Why? Silverstone is lower rpm at 2800ish while Arctic is 4k with more aggressive blade pitch to scoop that air and jam it through tiny holes faster.
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I think i've seen values in the 40watts range for those. That's typically more a question of what the motherboard supports, rather than what the connector supports, but i'm sure i've seen >3Amps on boards going back to LGA1151, that's like >10years.
If you send me one of those thousand dollar motherboards, I will be happy to plug all my 8k rpm fans in and see if the controller burns out
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the controller does not supply +12V, well there may be a micro-fuse for each output...will be happy to plug all my 8k rpm fans in and see if the controller burns out
he questions is where the +12V comes from, is there enought Wattage available (ATX24V)
Such splitters I thought initially to make myself but good that asked this board before. Found Fan Controllers for Arctic 4K on Amazon (with the restriction on total power drained on all ten 4pin ports to 60W) but for 8K there is no anything even close because of 80 Watt power for 3 + pump motor. Splitters like you are showing also currently in short supply. OK, for a wile will start playing with Arctic 4K which was already delivered. Why it came without screws which looks like are of metric threads for this liquid cooler (one more day delay. Some Amazon reviews tell they should come with the damn screws...)
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