Recent content by Imacflier

Paperdoc The RTX3080 I am using is the Waterforce version (factory attached waterblock), it has on chip temperature sensing, and a PWM output for radiator fan control. The motherboard outputs a PWM sigal based on CPU temp. A simple one op-amp non-inverting summing amplifier will output the...

Good Morning, The fans on the GPU are PWM, so I can compare the speed signal as an analog to temperature from the GPU PWM fan signal. I can compare that with the motherboard PWM fan signal (again as a analog to the CPU temperature). Then I can use the larger of the two signals to control the...

Only one fan, speed controlled by the hotter of the cpu or gpu.

My Goodness! Let me try to clarify what I think is the way. 1. Set pump speed. 2. Sample CPU Fan Speed Request value. 3 . Sample GPU Fan Speed Request value. 4. Set fan speed to the larger of 2. or 3. 5. Go to 2. And that should vary the fan speed over the full range depending on...

@Paperdoc Very nice post! I had not considered the effect of hysteresis in the system....but it is obviously something to be taken into account! I think I will take both yours and SkyNetRising's advice: set the pump speed to the fastest speed tolerable based on pump loudness, intercept the...

Thank you so much for the direct and pertinent response. I expect (hope) to use a single 200mm fan paired with a (200 x 200 x 85) radiator . That should be adequate to cool well over the total capacity of the 1000 Watt power supply, and therefore sufficient. Since, at this time, the highest...

Requested data follows; in return, please explain how any of this data can possibly affect the answer to my question! CPU: I9-9900KS GPU: RTX 3080 OS: Windows 11 Pro PSU: Corsair SF1000 (NIB) System Drive: 4TB NVME, 30% full Storage Drive: 4TB NVME, empty NAS: 30 TB, ~60% full over 5...

Hi, all, I am building a custom loop which will contain both the GPU and the CPU. Both the loop pump and the radiator fans are PWM controlled. I can obtain the PWM control signals from either the GPU (intercepting the old GPU temperature fan control signal) or from the motherboard (the...

Eximo, Thanks, that is what I had pretty much thought. But your confirmation is important to me. And thanks for that as well, I had not considered tying the grounds together, but I will! Larry

AHA! I found a 240 Watt unit, although will have to adapt the 2.1mm barrel connector! Larry

Thank you so much for the clear response! But: Whew! I had located 200 Watt units and had hoped that would be sufficient; I will keep looking! Now: it is not clear to me that having a GPU shortfall in power during a transient will affect the system since the PSUs are...

Lutfij, I have an 8gb asus geforce rtx 3050 phoenix v2. It is the single fan version. The link you referenced is the link I was unable to translate into how many watts are required! Can you translate it and tell me how many Watts I need? TIA Larry

Good Morning, All I am in the process of setting up an RTX 3050 as an external GPU for a minicomputer. This will require providing a separate 12vdc supply for the RTX 350. I need to spec the size of the external 12vdc. While the RTX 3050 is spec'd at 130 Watts, the RTX 30xx series GPUs have...

Flow rates? I don't need no stinking flow rates, just clean coolant! Great point, I will try and find out....maybe put together a test loop. And what about the guppies??? Thank you, Larry

Hi, All, I want to use an inline filter in my custom loop. None of the filters I have seen are much more than some rather coarse mesh screen put into the loop. These really do not seem, to me, that they would do much more than keep the guppies out of the hardware! (You add guppies to eat the...