I got a DH67GD (a DH67BL + FireWire + DisplayPort) in the end and the fan control is great with the latest (v110) BIOS, which is much newer than the one in the SPCR review. The controls allow setting of:
- target temperatures for CPU, PCH (chipset), VRM and RAM) along with damping characteristics for the ramping)
- minimum and maximum duty cycle for each fan header
- they also run the fans at 100% briefly on power on/resume from hibernate/sleep.
It looks a lot like this one:http://benchmarkreviews.com/images/revi ... ios_11.jpg
athttp://benchmarkreviews.com/index.php?o ... mitstart=5
They also allow what seems to be re-assignment of the fan headers for different purposes (e.g intake chassis fan header used for CPU fan). I tried this (the CPU fan is 4-pin PWM only and I wanted to use 2 Noctua DC fans for the CPU) and although it changes the text in the BIOS (and Intel Desktop Utilities), it doesn't appear link the non-CPU fan header to the CPU temperature.
With a Noctua NH-C14 and the 2 Noctua fans on the minimum speed on the intake header (~ 670 rpm), the cooling was good enough not to need BIOS control. Except that I wanted them slower/quieter than this. Fixed with a FanMate would have been an option except for the high starting voltage on the Noctua fans.
So I now have 2 Scythe PWM 120 fans on the CPU fan header. These go down to 200 rpm or so (if desired) with the BIOS fan control. The DC case fans seem to be controllable down to 5% duty cycle with the BIOS control.
Here the specification and results (case, PSU and optical re-used from viewtopic.php?t=31528
Case: P180 (no filters, front intake grills and door grills modified for more air, top vent blocked)
Case fans: 2 x Nexus 120mm (upper chamber intake / lower chamber middle – split off inlet fan motherboard header at 5% minimum duty cycle), Scythe SFF21E (upper chamber back outlet – on motherboard outlet fan header at 15% minimum duty cycle)
PSU: Nexus Value 430W
Motherboard: Intel DH67GD
CPU: Intel Core i5-2500K
CPU heatsink – Noctua NH-C14
CPU heatsink fan – 2 x Scythe SY1225SL12LM-P (Split off motherboard CPU fan header at 30% minimum duty cycle)
SSD: Crucial M4 128GB
Optical: Some DVD-RW drive
Other: USB webcam, Bluetooth dongle, card readerIdle (Windows 7)
Power: 29W (from APC PowerChute), 32W (power meter)
CPU – 32C
PCH (chipset)– 63C
Memory – 33C
VR (VRMs) – 31C
CPU fans– 409 rpm
Inlet fans – 421 rpm
Outlet fans – 401 rpmPrime95 (in-place large FFTs)
Power: 98W (APC PowerChute), 110W (power meter)
CPU – 57C
PCH (chipset)– 69C
Memory – 42C
VR (VRMs) – 45C
CPU fans – 409 rpm
Inlet fans – 421 rpm
Outlet fans – 401 rpm
- the fans don't increase in speed at all.
- it can continously use the single-threaded 3.7 GHz Turbo Boost (never drops with to the 3.4 GHz long-term boost - due to the efficient heat sink?).
- It's quick!
Thanks to SPCR and the forum members for being such a great resource.