Re: Can Smart Fan control stop CPU Fan at Low Temp or IDLE?
You haven't said if you've actually opened the case and looked at the fan in question. This is the most logical thing to do surely? Then you can establish if the fan is really stationary. If it isn't stopped when the RPM readout displays 0 then you can simply ignore it.
Any issues a fan being controlled by PWM will have are not due to low voltage. a PWM controlled fan receives pulses of full 12V. Also a 120mm fan absolutly will not stop at just under 7V regardless of brand. Every 120mm fan you will ever encounter will safely run when severely undervolted, even down to 5V which is the lowest I'd recommend going. There IS a minimum voltage required by a fan for it to initially start to spin, and this WILL vary depending on the model of fan. Conversely, even though a fan will refuse to start on for example, 3.3V, after initially being spun up on a higher voltage it may be then possible to drop voltage below 3.3V and still have the fan spin.
Coolermaster CM 690 II advance Case
Corsair HX750 (CWT, 91%(80+ Gold rated @230V) single 62A 12V rail
P55A-UD4 v2.0 @ F14
Core i5 760 @ 20 x 201, 4.02GHz
TRUE Black with a single Noctua NF-P12 pumping out 55 CFM @ 19db .
2 x 2GB Mushkin Ridgeback (996902), @ 7-10-8-27, 2010-DDR, 1.66v
2 x Gigabyte GTX 460 1024MB in SLI (Pre OC'd to 715MHz core and 1800MHz VRAM) @ 850 Core / 4100 Mem.
Intel X25-M Boot Drive (OS and Programs) 200MB/s Read & 90MB/s Write
Corsair X32 200MB/s Read & 100MB/s Write
WD Caviar Blue 640GB C (Steam, Games, Storage, Temp Files & Folders, etc)
Samsung F3 500GB Backup/Images
Noctua 1300RPM 19dB case fan (rear extraction)
3 x 140 MM Coolermaster LED fans (one front intake, one top extraction, one side intake)
Dell Ultra Sharp 2209WAf E-IPS @ 1680x1050