The Something Awful Forums > Discussion > Serious Hardware/Software Crap > AMD CPU and Platfrom Discussion Episode IV: A New Hope is Ryzen
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| Canned Sunshine posted:Most of the coolants used now are also some variation of deionized water and propylene glycol I believe, so electrical conductivity is negligible also. That's pretty much always been the standard. But running water through a bunch of metal means it picks up ionization, and a drip that lands on the dusty surface of a mobo or GPU will become a little bit conductive. OTOH a water leak won't necessarily kill components. Saukkis posted:The pump noise is unavoidable in the standard AIO designs, but are there custom loop systems where it has been eradicated? I'm imagining a setup where the pump is surrounded by the water reservoir as much as possible. On a custom loop the pump has two things going for it: 1. The standard D5 is bigger than the ones that fit on a CPU block, so you have the same thing with fans where bigger = quieter / more efficient. 2. Putting the pump on the reservoir means you can attach it to the case with some rubber grommets to prevent vibration noise. I bet a lot of the noise from AIO pumps is being amplified by the mobo -- the CPU area is in the middle of the ATX standoffs so that makes a good sounding board. This also could be why there are a some differences of opinion about AIO pump noise, that's a thing that will vary a lot by setup (and can be "tuned" by RPM). OTOH even the quietest pump is louder than a very low RPM fan. It's just physics, water is harder to move than air. That was a pretty perennial takeaway back in the Silent PC Review days. So if you care about low-20s-db noise air is still best. |
| #?Jun 8, 2024 13:35 |
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| #?Jun 9, 2024 05:08 |
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| Glad to see Silent PC Review referenced  I built an old gaming rig using their recommendations - Antec P182, Nexus fans, Scythe 3x5.25" filtered air intake/fan mount and the case + fans was a real workhorse for over 10 years before I replaced it with a Define 7. They also had articles about Speedfan and how to tune fan speeds to get a machine that was quiet at idle / low load. |
| #?Jun 8, 2024 14:05 |
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| Wibla posted:I built an old gaming rig using their recommendations - Antec P182 Still my case! I modded one front fan to a 140mm because I don't need 2 hard drive cages in the modern world, and replaced the old USB2+firewire front ports with USB3 + a USB C. (The USB C doesn't work for anything but charging, but that's because my mobo doesn't have the new C connector port and doesn't like the adapters that convert a 3.0 block.) Definitely not as good as a Fractal Define -- even if you still like a solid front case, the door on the P182 is too close to the fans. But still pretty nice in 2024! |
| #?Jun 8, 2024 14:23 |
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| Klyith posted:On a custom loop the pump has two things going for it: The loudest thing in my case at any given moment is the mechanical hard drives when they are actually spinning (rare) and they aren't pumping anything, but at 7200 RPM they are the fastest spinning motors in the case by far. |
| #?Jun 8, 2024 15:27 |
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| Fan noise is very dependent on what is in front of and behind the fan. If it's moving air through a mesh or filter or even just mounting hardware, you can get odd occurences of resonating frequencies the fan wouldn't make otherwise. |
| #?Jun 8, 2024 16:03 |
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| Klyith posted:Definitely not as good as a Fractal Define -- even if you still like a solid front case, the door on the P182 is too close to the fans. But still pretty nice in 2024! I yanked the filter doors + the front door off my P182, I wanted better cooling with lower noise, aesthetics be damned  |
| #?Jun 8, 2024 16:12 |
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| I dont think Ive ever actually heard the pump in my AIO systems over the fans themselves? Not discounting other peoples experiences but I dont think this is as universal a thing as some people are making it out to be. Ive got two Asetek models and a cheapo knock off. I run them all at max pump speed. The cheapo one definitely has a little vibration I can feel through the desk when I work on it, but I dont hear it at all. The Aseteks Ive never heard either. |
| #?Jun 8, 2024 16:39 |
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| Cygni posted:I don’t think I’ve ever actually heard the pump in my AIO systems over the fans themselves? Not discounting other people’s experiences but I don’t think this is as universal a thing as some people are making it out to be. Some of the discussion is coming from people running fans at near or actual inaudible levels which means nothing to cover for pump noise. Probably also there's some variance from person to person in terms of sensitivity to noise at certain frequencies. |
| #?Jun 8, 2024 16:50 |
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| Klyith posted:OTOH a water leak won't necessarily kill components. I cant imagine turning off a computer, only reboot it for updates or powering off for maintenance. |
| #?Jun 8, 2024 17:33 |
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| Indiana_Krom posted:I don't think this is true, at the very least either of my D5s at 4800 RPM are way, WAY quieter than any 4800 RPM fan I've had before was. Although to do a true apples to apples comparison the fan would have to be the same size as the pump impeller. RPM to RPM isn't a useful comparison at all. It's pump vs fans at their respective quietest usable speeds while the system is idle. The fastest fan in my system is running at 900 RPM, and only because it's not a PWM fan and the mobo won't go below 7V. In many other comparisons water is better, noise at load in particular. Wibla posted:I yanked the filter doors + the front door off my P182, I wanted better cooling with lower noise, aesthetics be damned Yeah I also removed the fan door thingies -- those were a bad idea in the first place, way too restrictive. And the main front door I have a little stopper so that it stays open a crack, just enough to reduce the back pressure. I open the it more when gaming or whatever. VorpalFish posted:Some of the discussion is coming from people running fans at near or actual inaudible levels which means nothing to cover for pump noise. Yeah, when I say "silent" I mean barely audible at nighttime in a quiet neighborhood. If the refrigerator in a different room is running I can't hear my pc. (Kinda a loud fridge, but the walls are thick early 1900s real plaster.) BlankSystemDaemon posted:Sure, if it happens when the system is mechanically powered off, and you happen to catch it before you turn it on. What I'm thinking about is some youtube tech idiot did an intentional water leak where iirc all their components survived. The PC crashed but once everything was taken apart, dried, and put back together, it still worked. |
| #?Jun 8, 2024 17:57 |
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| Klyith posted:RPM to RPM isn't a useful comparison at all. It's pump vs fans at their respective quietest usable speeds while the system is idle. The fastest fan in my system is running at 900 RPM, and only because it's not a PWM fan and the mobo won't go below 7V. The trick is to get it powered off as soon as possible, and then dry it sufficiently. Both are hard to do if it ist a controlled enviroment where you already have tools at hand and know that it happened. |
| #?Jun 8, 2024 18:01 |
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| Klyith posted:RPM to RPM isn't a useful comparison at all. It's pump vs fans at their respective quietest usable speeds while the system is idle. The fastest fan in my system is running at 900 RPM, and only because it's not a PWM fan and the mobo won't go below 7V. I have my power and fan curve tuned such that I can't tell if my computer is on even under load in a room with no ambient noise sources unless I look at the led, so water would be a similarly bad idea for me. Where water shines is when you absolutely want to push tons of power - like 150w+ for CPU, 300+ for GPU. |
| #?Jun 8, 2024 18:30 |
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| Cygni posted:I don’t think I’ve ever actually heard the pump in my AIO systems over the fans themselves? Not discounting other people’s experiences but I don’t think this is as universal a thing as some people are making it out to be. You're saying here that your fans make noise so your pump experience is not comparable to mine. VorpalFish posted:I have my power and fan curve tuned such that I can't tell if my computer is on even under load in a room with no ambient noise sources unless I look at the led, so water would be a similarly bad idea for me. Yeah same. Mine is audible, but still very quiet when doing more demanding stuff though like rendering though. Using 120 fps frame limiter makes older games run light enough to not make noise which is awesome. I can play those games with my speakers at very low volume at night and not be bothered by any fan noises. I also use a fully passive 700w power supply because Seasonic fan control sucks and makes the fan turn on and off every few minutes at idle load. Their fan turning on makes annoying noise, which is unacceptable and it wasn't the quietest running at low load either. Sininu f*cked around with this message at 19:36 on Jun 8, 2024 |
| #?Jun 8, 2024 19:24 |
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| If your fans are audible at idle, you're doing it wrong. |
| #?Jun 8, 2024 21:06 |
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| Sininu posted:I also use a fully passive 700w power supply because Seasonic fan control sucks and makes the fan turn on and off every few minutes at idle load. Their fan turning on makes annoying noise, which is unacceptable and it wasn't the quietest running at low load either. This drove me up the wall with this Seasonic 750W until I remembered it has a button to disable the hybrid fanless bullsh*t. The RM750e (2021) that I bought for a different build doesn't have that button, but still does the thing and it pisses me off every time I hear that fan spin up. Easily the noisiest component in the entire system. Do not buy the newer Corsair RMe PSUs. Dr. Video Games 0031 posted:If your fans are audible at idle, you're doing it wrong.  |
| #?Jun 8, 2024 21:16 |
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| Wibla posted:This drove me up the wall with this Seasonic 750W until I remembered it has a button to disable the hybrid fanless bullsh*t. Meanwhile both Corsair RMx PSUs I've had have been flawless, and I don't think I've ever heard either of them. I assume if the fans ever do make noticable noise it's at a time when the CPU or GPU are already spun up. |
| #?Jun 8, 2024 22:05 |
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| I've had the same experience with the RM750x I bought for my NAS, as well  definitely a quality difference there. |
| #?Jun 8, 2024 22:13 |
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| Y'all with semi-passive PSUs that flip the fan on and off too much: did you install them "normally"? Because they are supposed to be upside down -- the vent facing upwards into the case -- for the passive-at-idle to work properly. If they're in the usual type of modern case with a bottom-mount PSU that vents directly from the outside, they can't stay passive because they have no air circulation. All the hot bits are at the top and heat has nowhere to go. When mounted upside down they get some natural convection, plus a bit of flow through due to positive or negative pressure from case fans. The manual actually tells you to do this. |
| #?Jun 9, 2024 03:14 |
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| #?Jun 9, 2024 05:08 |
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| i assume with competent engineering the fan would fire up running on a sensible T vs RPM with hysteresis curve when internal component temperature goes high enough regardless of the exterior, but then again competent engineering is not that common |
| #?Jun 9, 2024 03:49 |
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The Something Awful Forums > Discussion > Serious Hardware/Software Crap > AMD CPU and Platfrom Discussion Episode IV: A New Hope is Ryzen
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