Is 300 RPM normal? | Linus Tech Tips | Page 1

quick geode Apr 18, 2025, 9:52 AM

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CPU: Ryzen 9800x3d
Motherboard: Gigabyte x870 Aorus Elite (Bios verison F4)
Ram: G.Skill Trident Z Neo 32 GB CL 30
GPU: Asus Tuf 5070Ti
Power Supply: Pure Power 1000w
Cooler: Arctic Liquid Freezer III 360
OS: Windows 11 Pro

I was playing and I saw that my CPU temp was at 90C and my fans were only going around 300 RPM. I just built this PC yesterday and i have no idea if this is normal

brazen dove Apr 18, 2025, 9:57 AM

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what pump doing?

quick geode Apr 18, 2025, 10:05 AM

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wdym

quick geode Apr 18, 2025, 10:29 AM

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These are all Lian li fans

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brazen dove Apr 18, 2025, 10:56 AM

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what the pump doing?

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or dose it slower increases in temp over like 5 min of load

main flicker Apr 18, 2025, 11:04 AM

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Literally have two called sys_fan_pump.

Thats the pump, for your aio lol. The thing cooling your cpu lol.

quick geode Apr 18, 2025, 11:07 AM

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The pump is working, it had a mini fan and it work however, the other fans switch I synced to the motherboard, hover at 300 rpm

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Which I don’t think is normal

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Another thing is that for some reason it isn’t being detected in the bios the pump but it spins

main flicker Apr 18, 2025, 11:08 AM

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What's the max rpm of the fan?

quick geode Apr 18, 2025, 11:08 AM

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2000

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Every Lian li fan can go to 2000

main flicker Apr 18, 2025, 11:08 AM

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Ok, so what's 25% of 2000

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You just used a calculator didn't you

quick geode Apr 18, 2025, 11:08 AM

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Erm

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Ya but the thing is it never got that

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I was playing rivals, my cpu was at 90 degrees and all the fans aside from the pump cause there’s no software for it, ran at 300 rpm

main flicker Apr 18, 2025, 11:10 AM

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Well. You either have the fans wired improperly, or they are busted

slim bloom Apr 18, 2025, 11:11 AM

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Tried to set the fans to max rpm?

quick geode Apr 18, 2025, 11:11 AM

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I have

main flicker Apr 18, 2025, 11:11 AM

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And?

quick geode Apr 18, 2025, 11:11 AM

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Using l connect and ya it can go to max rpm

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I’ve seen it go to 2k

slim bloom Apr 18, 2025, 11:12 AM

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Skill issue I see

quick geode Apr 18, 2025, 11:12 AM

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I just wanted to sync it with the bios

slim bloom Apr 18, 2025, 11:12 AM

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It can't

main flicker Apr 18, 2025, 11:12 AM

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So, you have all fans connected to ONE sensor?

quick geode Apr 18, 2025, 11:12 AM

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All the fans are in one controller

main flicker Apr 18, 2025, 11:12 AM

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Ew

quick geode Apr 18, 2025, 11:12 AM

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Which I plugged the controller into 1 fan header

main flicker Apr 18, 2025, 11:12 AM

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Oh god

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Cpu needs to be connected to cpu

quick geode Apr 18, 2025, 11:13 AM

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Except that

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The cpu went into the cpu header

main flicker Apr 18, 2025, 11:13 AM

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Literally has a separate fan header and pump header for that

quick geode Apr 18, 2025, 11:13 AM

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My cooler came with all in one cable and a splitter for 3

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I chose the all in one bc my mobo doesn’t have the one that support all 3

main flicker Apr 18, 2025, 11:14 AM

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Right. For the cooler only lol, for the three fans you hook up to it

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Splitter is fine, and it's meant to connect ONLY the fans for the cpu cooler

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Then you should have one for the pump as well

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Then you have a separate fan header, which you plug the rest of the case fans into

quick geode Apr 18, 2025, 11:16 AM

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See those 2 plugs that’s from the pump

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The fans on top went straight to the controller

main flicker Apr 18, 2025, 11:17 AM

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Ok

quick geode Apr 18, 2025, 11:17 AM

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Are they suppose to be on the cpu opt one?

main flicker Apr 18, 2025, 11:17 AM

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Cpu is for cpu

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Are fans connected to it

quick geode Apr 18, 2025, 11:18 AM

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No

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Just this thing

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main flicker Apr 18, 2025, 11:18 AM

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Does your motherboard have an aio pump header?

quick geode Apr 18, 2025, 11:18 AM

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Ya

main flicker Apr 18, 2025, 11:18 AM

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Should literally be called pump_aio

quick geode Apr 18, 2025, 11:18 AM

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Ya it’s on the bottom

main flicker Apr 18, 2025, 11:19 AM

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So, pump connects into that

quick geode Apr 18, 2025, 11:19 AM

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Ohhh

quick geode Apr 18, 2025, 11:24 AM

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main flicker Should literally be called pump_aio

Ok no im just stupid

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It’s on cpu fan

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2 wires from the pump say one cpu and the other one is an argb connector

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And they are at the top right where I posted the photo

main flicker Apr 18, 2025, 11:25 AM

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So, case fans connect to a regular ol fan header on the motherboard. Usually there are three.

Pump, connects to the pump_header kn the motherboard.

Cpu fans connected to the radiator / grill / the three or two fans for the cpu. Connected to the cpu_header

quick geode Apr 18, 2025, 11:26 AM

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AhHHHH

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So the three on top

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Are suppose to connect to the cpu opt

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And not the controller

quick geode Apr 18, 2025, 11:29 AM

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main flicker So, case fans connect to a regular ol fan header on the motherboard. Usually the...

Think that’s where I’m getting at ya

main flicker Apr 18, 2025, 11:31 AM

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Yes, it depends on motherboards. Cpu_header needs to have something plugged in or it won't boot, usually.

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You can leave the pump connected to the cpu_header but you need to turn it up to 100%

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Then the fans for the radiator can connect to the other sys_fan if you want

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You have options

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Basically pump needs to be getting proper power, needs to be at 100%

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The pump is not a fan, it needs different power

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The pump header is usually set to run at 100% speed by default, so the cpu header would be best, although you can change speed settings in the bios on all the headers.

I would personally plug the fans into a y splitter and plug that into the cpu header. Then plug the pump into the pump header. That way you can control pump and fan speed separately.

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@quick geode just so you know ... cpu_fan is the primary cooler for your cpu. Cpu_opt is for a second fan if you use one (like with dual fan air coolers). Cpu_fan is the primary cpu_header basically

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So, basically, the pump would go into cpu_fan, and the three fans connected to the radiator would be connected to cpu_opt if you wanted to keep the wires up there

brazen dove Apr 18, 2025, 11:40 AM

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main flicker Literally have two called sys_fan_pump. Thats the pump, for your aio lol. The t...

that dose not mean there a punp pluged into it

main flicker Apr 18, 2025, 11:42 AM

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What are you trying to say?

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@brazen dove

#Is 300 RPM normal?