Incorrect fan header names for Gigabyte B650 Gaming X AX motherboard

rjwb

New Member
After updating HWiNFO64 all my motherboard fan headers are named incorrectly, they all used to be correct.

CPU_FAN is labelled as CPU2
CPU_OPT is labelled as System 2
SYS_FAN1 is labelled as CPU1
SYS_FAN2 is labelled as Power
SYS_FAN3_PUMP is labelled as System1
 

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On this subject, am I correct in assuming that any sensor values in rpm would be fans? (The same issue exists for my Dell XPS).
 
On this subject, am I correct in assuming that any sensor values in rpm would be fans? (The same issue exists for my Dell XPS).
I guess they would be fans but I'm not sure, sorry. I have a dell g15 5510 gaming laptop and HWiNFO64 doesn't show any of the fans for that.
 
Thanks, rjwb. I did some further investigation on my Dell XPS8900. I finally noticed that HWiNFO has tiny fan icons next to the sensor values that are denominated in rpm. I found these sensor values under the heading "DELL EC: DELL XPS 8900". When highlighted, this heading gives the following explanation: "This sensor provides data from the Embedded Controller via SMI interface. . ."

I tested the sensor values. After starting my computer with the case open, I gently placed my finger on the smooth center surface of each fan to slow them down briefly, and the sensors showed new minimum values of roughly 500 rpm, about half the normal values. Interestingly, there was a new (higher) maximum value recorded also, which I assume was a rebound from the slow-down. The fans then settled down to normal speed. This suggests to me that, under normal operation, the fan's speed is still being limited electrically, not by friction.

I am so impressed at the great information provided by the motherboard and HWiNFO!
 
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