Hi, I have an HP pavilion 15 with Ryzen 3500u and want to increase the cooling to run the CPU at an higher TDP, which is 15W at stock with a 25W boost.
I already changed the stock heatsink with a double heatpipe one of another model with good results, but now I wonder, since the motherboard have a second fan connector and it seems connected if it's possible to enable and control a second fan. The fan spins briefly at power on but then nothing.
The moderboard uses an ENE KB9028Q C as controller but no datasheet is avaible. The idea was to find the registers that control the second fan and let Notebook FanControl do the job but failed even to find the first fan registers. Also I don't even know if it's doable that way.
Another idea was to route the pwm signal of the first fan to the second, but I couldn't find the pinout of the fan and don't know if the order is standard or not. And I don't know if the controller is able to drive 2 fans.
I have thought to split all the cables but don't know if the 5V can provide enough power, each fan may need up to 0.5A.
Any suggestion is appreciated, I think the pwm splitter is the easier solution but I need to know which cable it is. The software solution is the more flexible since it will be possible to custom program the fan behaviour, but without the datasheet a was not able to do it.
I already changed the stock heatsink with a double heatpipe one of another model with good results, but now I wonder, since the motherboard have a second fan connector and it seems connected if it's possible to enable and control a second fan. The fan spins briefly at power on but then nothing.
The moderboard uses an ENE KB9028Q C as controller but no datasheet is avaible. The idea was to find the registers that control the second fan and let Notebook FanControl do the job but failed even to find the first fan registers. Also I don't even know if it's doable that way.
Another idea was to route the pwm signal of the first fan to the second, but I couldn't find the pinout of the fan and don't know if the order is standard or not. And I don't know if the controller is able to drive 2 fans.
I have thought to split all the cables but don't know if the 5V can provide enough power, each fan may need up to 0.5A.
Any suggestion is appreciated, I think the pwm splitter is the easier solution but I need to know which cable it is. The software solution is the more flexible since it will be possible to custom program the fan behaviour, but without the datasheet a was not able to do it.