Main system components:
Centurion 530 mid-tower case
Intel Core 2 Quad Q6600 (stock 2.4 GHz @ 1.30 volts) (95W TDP)
Noctua NH-U12F heatpipe cooler
Asus Commando with Intel P965 and ICH8R
2x 1GB Corsair DDR2, 800MHz (TWIN2X2048-6400)
Asus Radeon HD 2400Pro 256MB
Samsung Spinpoint P80SD
Prime95 stable speeds I tend to use:
2.4 GHz @ 1.1 volts (calculated 63W TDP) (0.46 volts/GHz)
3.0 GHz @ 1.3 volts (calculated 119W TDP) (0.43 volts/GHz)
3.2 GHz @ 1.35 volts (calculated 137W TDP) (0.42 volts/GHz) [later proved slightly instable at higher temperatures]
(Voltage as set in BIOS setup. Speedfan readings approximately 0.05 volts lower. All other OC setting kept at "auto" except FSB and vcore.)
2007-10-1 addition (vdroop mod):
@2.4 GHz @3.15 GHz
vcore BIOS set 1.100 1.350 1.325 1.300 1.265
before pencil mod
idle 1.065 1.305 assumed assumed ussumed
load (PRIME95) 1.0325 1.255 unstable / unstable / unstable /
idle to load -0.0325 -0.050 not tested not tested not tested
after pencil mod
idle 1.0725 assumed 1.305 1.280 1.240
load (PRIME95) 1.080 stable / 1.320 1.295 1.255
idle to load +0.0075 not tested +0.015 +0.015 +0.015
Thus, load voltage remained same (should have the same degree of stability) but idle voltage dropped 0.065 volts. Vcore now slightly increases with load, even though I'm not running voltage in Auto mode (which would also allow increased voltage on load but generally higher voltage level overall, both idle and load).
CPU temperature readings:
clock 2.4 GHz 3.2 GHz
idle 36 45
load (100%) 44 60
load (N) 47 (30%) 60 (100%)
load (0%) 56 not tested
0, N and 100 represent CPU fan PWM values. N is controlled by Speedfan with 45 deg C "desired" and 55 deg C "warning". (Audible beeping warning enabled at 65 deg C and dual beep warning at 70 deg C.) Value next to temperature is typical PWM used when automatically controlled. Ambient temperature approx. 20 deg C at time of measurement. Front intake fan was slowed down to PWM 12% (minimum that keeps it barely spinning). Temperatures taken with SpeedFan but adding 15 degrees (that way SpeedFan readings are the same as Core Temp).
CPU fan (Revoltec red LED fan 120mm) plugged to PWR_FAN connector. This supports PWM from 0 to 100% via SpeedFan. No BIOS PWM support. No Q-Fan support.
Front intake fan (CoolerMaster blue LED fan 120mm) plugged to CHA_FAN3 connector. Supports PWM (0 to 100%) via SpeedFan but not via BIOS. Supports Q-Fan from BIOS but this need to be disable in order to use SpeedFan. (All CHA_FANx connectors use the same PWM.)
OPT_FANx connectors are all lest unused (for now). They support control via SpeedFan (30 to 100%) and via BIOS (70 to 100%) and optionally Q-Fan. Due to inability to stop fans from spinning, I don't use them at my current configuration.
Exhaust fan (YateLoon 120mm) is plugged to 5V with 2 series diodes - thus running from 3.6 volts.
Corsair's stock 120mm fan is controlled by Corsair's own internal fan controller. There's no need to modify it since it's unbelievably quiet at all loads I've pushed it so far.
And some pictures:
Because I don't want to make this thread too heavy-loading won't post all pictures I've taken. They can be found here: http://s174.photobucket.com/albums/w96/whiic/computers/
I did some cable management under the motherboard but other than that I didn't care about managing SATA and PATA cables... because I will soon(ish) move my system HDD to be decoupled in 5.25" bay instead of quick mount 3.5" inch tray it's currently situated. After that will add more pictures of the internals.
The only internal picture I included shows the cooler, PSU, exhaust fan and slight ducting I made my cutting the plastic packaging Corsair memory sticks came in. It forces air drawn by exhaust fan to either:
- pass through the CPU heatsink
- pass above the heatsink (providing cool air for PSU)
- pass below the heatsink (providing cool air for VRM and for VRM/Northbridge/Southbridge/heatsink/heatpipe-thingy).