Reflections on watercooling: Difference between revisions

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I've been watercooling my primary personal machine since [[Schwarzgerät_II|2020]]. It started off simple—a waterblock on my Threadripper 3970X, an EKWB reservoir+pump combo, and a Hardware Labs GTR360 radiator. A total of about $480 (not including fans), less than my motherboard cost. It is no longer so simple: the same machine in its [[Schwarzgerät_III_upgrade|current incarnation]] boasts a monoblock, a GPU block, a custom GPU backplane, four radiators, two reservoirs, four D5 pumps, two temperature sensors, two discrete inline sensors, and about twenty attachments of all kinds. There's <i>at least</i> $1000 worth of watercooling crap in there, and another $500 of fans. I guess you could say things are getting serious.

'''[[Dankblog|dankblog!]] 2022-04-17, 0836 EDT, at [[Viewpoint|the danktower]]'''

I've been watercooling my primary personal machine since [[Schwarzgerät_II|2020]]. It started off simple—a waterblock on my Threadripper 3970X, an EKWB reservoir+pump combo, and a Hardware Labs GTR360 radiator. A total of about $480 (not including fans), less than my motherboard cost. It is no longer so simple: the same machine in its [[Schwarzgerät_III_upgrade|current incarnation]] boasts a monoblock, a GPU block, a custom GPU backplane, four radiators, two reservoirs, four D5 pumps, two temperature sensors, two discrete inline sensors, and about twenty attachments of all kinds (note that this is an almost laughably overpowered setup). There's <i>at least</i> $1000 worth of watercooling crap in there, and another $500 of fans. I guess you could say things are getting serious.

I've put together some thoughts having watercooled for over two years.

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* SSDs are meant to run hotter than hard drives. You don't need to watercool them, nor RAM. Please don't try to watercool your hard drives.

Every pump I'm aware of runs off 12V, with a maximum draw no greater than 30W. You can thus power them with any combination of Molex, SATA, or even PCIe cables, so long as you match the final form factor. I use PCIe cables with Molex converters; [https://www.performance-pcs.com/cables/power-supply-adapter-cables/pci-express-to-molex-adapter-cable-sleeved-pcie2molex-c.html PerformancePCs] sell a nice sleeved one. Almost all pumps are either D5 or DDC; the former is quieter and more powerful, but slightly larger. I roll exclusively with ~~Liang~~ D5s. PWM models can be controlled on the fly, while "Vario" models have a physical potentiometer which almost always ends up being a bitch and a half to get to. I recommend going with PWM. Varios will typically have a 3-pin hookup reporting tach, while PWM will have a 4-pin hookup.

Every pump I'm aware of runs off 12V, with a maximum draw no greater than 30W. You can thus power them with any combination of Molex, SATA, or even PCIe cables, so long as you match the final form factor. I use PCIe cables with Molex converters; [https://www.performance-pcs.com/cables/power-supply-adapter-cables/pci-express-to-molex-adapter-cable-sleeved-pcie2molex-c.html PerformancePCs] sell a nice sleeved one. Almost all pumps are either D5 or DDC; the former is quieter and more powerful, but slightly larger. I roll exclusively with Laing D5s. PWM models can be controlled on the fly, while "Vario" models have a physical potentiometer which almost always ends up being a bitch and a half to get to. I recommend going with PWM. Varios will typically have a 3-pin hookup reporting tach, while PWM will have a 4-pin hookup.

As for soft vs hard tubing, I use soft tubing, and don't intend to ever do otherwise. Soft tubing is trivial to cut, cheap, has plenty of give, bends without a heating gun, doesn't shatter, and is already quite enough of a pain in the ass. Old types of soft tubing were prone to plasticizer leeching, but newer types don't have them. I recommend [https://www.ekwb.com/shop/ek-tube-zmt-matte-black-19-4-12-5mm EKWB ZMT] (zero-maintenance tubing), so long as you don't mind it being opaque. Cheap anti-kinking coil can wrap your soft tubing to give it more resistance, and also provide some color. (Some) hard tubing can survive higher temperatures than soft tubing, but such high temperatures are bad for your other components, especially pumps, and ought be avoided.

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-I've been watercooling my primary personal machine since [[Schwarzgerät_II|2020]]. It started off simple—a waterblock on my Threadripper 3970X, an EKWB reservoir+pump combo, and a Hardware Labs GTR360 radiator. A total of about $480 (not including fans), less than my motherboard cost. It is no longer so simple: the same machine in its [[Schwarzgerät_III_upgrade|current incarnation]] boasts a monoblock, a GPU block, a custom GPU backplane, four radiators, two reservoirs, four D5 pumps, two temperature sensors, two discrete inline sensors, and about twenty attachments of all kinds. There's <i>at least</i> $1000 worth of watercooling crap in there, and  another $500 of fans. I guess you could say things are getting serious.
+'''[[Dankblog|dankblog!]] 2022-04-17, 0836 EDT, at [[Viewpoint|the danktower]]'''
+I've been watercooling my primary personal machine since [[Schwarzgerät_II|2020]]. It started off simple—a waterblock on my Threadripper 3970X, an EKWB reservoir+pump combo, and a Hardware Labs GTR360 radiator. A total of about $480 (not including fans), less than my motherboard cost. It is no longer so simple: the same machine in its [[Schwarzgerät_III_upgrade|current incarnation]] boasts a monoblock, a GPU block, a custom GPU backplane, four radiators, two reservoirs, four D5 pumps, two temperature sensors, two discrete inline sensors, and about twenty attachments of all kinds (note that this is an almost laughably overpowered setup). There's <i>at least</i> $1000 worth of watercooling crap in there, and  another $500 of fans. I guess you could say things are getting serious.
 I've put together some thoughts having watercooled for over two years.
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 * SSDs are meant to run hotter than hard drives. You don't need to watercool them, nor RAM. Please don't try to watercool your hard drives.
-Every pump I'm aware of runs off 12V, with a maximum draw no greater than 30W. You can thus power them with any combination of Molex, SATA, or even PCIe cables, so long as you match the final form factor. I use PCIe cables with Molex converters; [https://www.performance-pcs.com/cables/power-supply-adapter-cables/pci-express-to-molex-adapter-cable-sleeved-pcie2molex-c.html PerformancePCs] sell a nice sleeved one. Almost all pumps are either D5 or DDC; the former is quieter and more powerful, but slightly larger. I roll exclusively with Liang D5s. PWM models can be controlled on the fly, while "Vario" models have a physical potentiometer which almost always ends up being a bitch and a half to get to. I recommend going with PWM. Varios will typically have a 3-pin hookup reporting tach, while PWM will have a 4-pin hookup.
+Every pump I'm aware of runs off 12V, with a maximum draw no greater than 30W. You can thus power them with any combination of Molex, SATA, or even PCIe cables, so long as you match the final form factor. I use PCIe cables with Molex converters; [https://www.performance-pcs.com/cables/power-supply-adapter-cables/pci-express-to-molex-adapter-cable-sleeved-pcie2molex-c.html PerformancePCs] sell a nice sleeved one. Almost all pumps are either D5 or DDC; the former is quieter and more powerful, but slightly larger. I roll exclusively with Laing D5s. PWM models can be controlled on the fly, while "Vario" models have a physical potentiometer which almost always ends up being a bitch and a half to get to. I recommend going with PWM. Varios will typically have a 3-pin hookup reporting tach, while PWM will have a 4-pin hookup.
 As for soft vs hard tubing, I use soft tubing, and don't intend to ever do otherwise. Soft tubing is trivial to cut, cheap, has plenty of give, bends without a heating gun, doesn't shatter, and is already quite enough of a pain in the ass. Old types of soft tubing were prone to plasticizer leeching, but newer types don't have them. I recommend [https://www.ekwb.com/shop/ek-tube-zmt-matte-black-19-4-12-5mm EKWB ZMT] (zero-maintenance tubing), so long as you don't mind it being opaque. Cheap anti-kinking coil can wrap your soft tubing to give it more resistance, and also provide some color. (Some) hard tubing can survive higher temperatures than soft tubing, but such high temperatures are bad for your other components, especially pumps, and ought be avoided.

Reflections on watercooling: Difference between revisions

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