I have a Silverstone FT02 case with three 180mm AP181 air penetrator fans drawing 0.45A each (5.4W) at their maximum speed of 1200 rpm. I was thinking about connecting all three of them to the two CHA_FAN connectors on my Asus P8P67 Deluxe mobo (two fans on CHA_FAN1 via a splitter, one fan on CHA_FAN2 directly) and controlling them through Asus Q-fan and Fan Xpert.

The manual states that the CPU_FAN PWM connector is rated for 1.0A current, but has no information about the current rating of the other connectors. So my question is: are the CHA_FAN connectors rated for at least 0.9A that two AP181's draw? Asus forums are unhelpful as usual.

Just a side note: have you retro-fitted them? Because according to current official specs, the FT02 should sport three 1000rpm fans rated at 0.3A each.

The ratings you list are for the pre-v1.7 FT02, which had three FN181 fans. Mine is a newer v1.7 case with factory-installed AP181 fans.

Last side note as you already own the mobo, you may also ask to their VIP service, I guess they should be a bit more helpful than their support forums.

Thanks for reminding me about that. Submitted a ticket there, now waiting for a "you will be fine unless you won't be" response.

Dear Valued Customer,

Thank you for contacting ASUS Customer Service.

My name is ... and it's my pleasure to help you with your problem.

Sorry sir.
The information about the CHA_FAN connector is not available for us.
You could call 812-282-ASUS(2787) for consultation.

Way to go, ASUS

I’m hardly surprised by Asus’s poor customer service. I had an Asus Sandy Bridge board with the faulty chipset and trying to get them to give me details on how they would handle the RMA was like pulling teeth. They were good at spouting vagaries and pointing me to a web page that had a recursive link to itself but they wouldn’t give me any hard facts. They did eventually get a new webpage that listed the date from when they would start handling the RMA process but still no hard facts as to what the process would entail time wise or cost wise.
I got sick of the emails and phone calls so RMA’d the board back to Amazon for a refund and bought a Gigabyte board that sensibly has a different part number to make it clear that you aren’t buying old stock with the faulty chipset.
The board itself looked pretty good but I can’t be doing dealing with companies like that. Completely clueless.

Hi, I just ordered a very similar system (ft02 & p8p67 (pro tho))

Have you figured out the answer to the original question (2 ap181's on the one header and being controlled with the fan manager?)

On another note, I have some Noctua ULNA & LNA kicking around that I was thinking of putting on the AP181's if I couldnt control them with the header, thoughts? I think the ULNA drops them to 5 volts and the LNA is 7. It would likely be better than the Ap181's on low from the built in controller i guess.

Thanks!

Hi guys

Sorry to revive a thread this old, but it contains some unanswered questions I'm interested in.

Hiwever, my main question is this. I've been trying to find out how an AP181 performs at 5 volts. Google has yielded little to nothing about it, and I need to know if it will even start at so low a voltage, or if I have to go for 7.

Thanks

it has trouble getting going at 5, id say 7