F5F Stay Refreshed Hardware Desktop PSU is operational, but PSU with pump shows no operation (Leaktest with extended PSU)

PSU is operational, but PSU with pump shows no operation (Leaktest with extended PSU)

PSU is operational, but PSU with pump shows no operation (Leaktest with extended PSU)

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AwSoMe683
Member
50
01-27-2026, 07:45 PM
#11
The pin configuration seems unusual. I'm not sure if I'm missing something, but the pin layout appears mirrored and rotated by -180° when viewed from the side of the 24-pin motherboard.
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AwSoMe683
01-27-2026, 07:45 PM #11

The pin configuration seems unusual. I'm not sure if I'm missing something, but the pin layout appears mirrored and rotated by -180° when viewed from the side of the 24-pin motherboard.

M
Matthieu_p
Member
217
01-29-2026, 08:18 AM
#12
I became frustrated and linked the pump to my internal PSU. It was running much faster than before and there was a leak in a tube connection. The pump isn’t working with the jump-started PSU either. I’ve got an air-based leak tester ready, but I’m tired of this.
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Matthieu_p
01-29-2026, 08:18 AM #12

I became frustrated and linked the pump to my internal PSU. It was running much faster than before and there was a leak in a tube connection. The pump isn’t working with the jump-started PSU either. I’ve got an air-based leak tester ready, but I’m tired of this.

J
JGBCRAFT
Member
65
01-30-2026, 09:10 AM
#13
It could be 12 - 3 = 9 or 3 multiplied by 3 equals 9. The number three should remain as 3.3v. If a 9 volt measurement persists, you must create a diagram of all wires, connectors, and pins. And after reviewing it, why is an external PSU used when testing for leaks?
J
JGBCRAFT
01-30-2026, 09:10 AM #13

It could be 12 - 3 = 9 or 3 multiplied by 3 equals 9. The number three should remain as 3.3v. If a 9 volt measurement persists, you must create a diagram of all wires, connectors, and pins. And after reviewing it, why is an external PSU used when testing for leaks?

S
sloop000
Junior Member
4
02-01-2026, 04:01 AM
#14
The pump operates without a jump-start because the original power supply had incorrect wiring.
S
sloop000
02-01-2026, 04:01 AM #14

The pump operates without a jump-start because the original power supply had incorrect wiring.

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ArydesPvP
Member
106
02-01-2026, 06:04 AM
#15
Some devices are activated by a switch that supplies power when it is closed = ON. Power is cut off when the switch is turned OFF. Other devices operate through a more intricate process, starting with a short electrical connection (such as a push button) that triggers certain circuitry to turn the device on. However, pressing the button again does not shut it down. Disconnecting the power in a different way is used for turning it off.

In summary, if a "wrong MOLEX wire" was present, it’s unclear what consequences occurred with the circuitry.

The original wiring and subsequent connections remain uncertain. What connectors were used for the initial jump start? The pins in each connector are important. I believe something was damaged during testing, particularly if both power supplies were connected simultaneously. You should draw diagrams illustrating all wires, connectors, and pins involved—PSUs, pumps, fans, etc.
A
ArydesPvP
02-01-2026, 06:04 AM #15

Some devices are activated by a switch that supplies power when it is closed = ON. Power is cut off when the switch is turned OFF. Other devices operate through a more intricate process, starting with a short electrical connection (such as a push button) that triggers certain circuitry to turn the device on. However, pressing the button again does not shut it down. Disconnecting the power in a different way is used for turning it off.

In summary, if a "wrong MOLEX wire" was present, it’s unclear what consequences occurred with the circuitry.

The original wiring and subsequent connections remain uncertain. What connectors were used for the initial jump start? The pins in each connector are important. I believe something was damaged during testing, particularly if both power supplies were connected simultaneously. You should draw diagrams illustrating all wires, connectors, and pins involved—PSUs, pumps, fans, etc.

H
Humble_Sushi
Member
119
02-01-2026, 01:43 PM
#16
I see, there could be more to it...
H
Humble_Sushi
02-01-2026, 01:43 PM #16

I see, there could be more to it...

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