Finally recovered my Titan's vBIOS that I've tried to flash with TI's vBIOS ("svl7" mod) modded a little bit with "Kepler BIOS Tweaker 1.25" (what I shouldn't have done).
Now having stock vBIOS again, I've reflashed it once again to TI's vBIOS ("svl7" mod), but this time without modding it. Everything went fine.
Here is what I've done using TI's vBIOS ("svl7" mod) to achieve my scores.
First thing I think should be mentioned for those who still don't know it, is that Titans have their TDP kinda "firmware locked" to max 265 W @ 106% power target and 250 W TDP @ 100% power target in their vBIOS.
However, havingy a graphic card like Titan, inserted into a PCI-E slot (75 W) and connected to the PSU with 1x 6-pin PCI-E cable (75 W) and 1x 8-pin PCI-E cable (150 W) results in making it physically possible the Titan to draw 300 W (75+75+150=300) instead of only 265 W.
So, If you get a look in TI's vBIOS, first thing you'll probably notice, is that "svl7" has set 100 % power target to 350 W.
To find out what would be the power target in % to set in EVGA Precision to drop to 300 W max from 350 W set as default, I had to calculate a little bit .
So here it is:
350 W = 100 % power target
300 W = ? % power target
14286 % power target for 300 W TDP.
As I can only set round digits in EVGA Precision, I had to calculate once again.
85,7 % pt = 300 W
85 % pt = ? W
85x300:85,7 = 297,5 Watts
So setting power target to 85 % in EVGA Precision resluted in having a 297,5 W TDP limit.
Than I I've slightly increased the voltage to 1.162 V (1 step beyond the default one - 1.150 V) and started to increase core and memory frequencies, each time running several 3DMark Fire Strike loops to test the stability.
I've also tried to use Heaven 4.0 and Valley 1.0, but than was forced to stop doing so.
Because when running Fire Strike, it also puts the GPU under 99 % load like Heaven and Valley do, but under Fire Strike it constantly draws more Watts and this is the spot, where TDP limit/power target kicks in, making my clocks throttle/fail, where under Heaven and Valley they didn't, because both were drawing less Watts than Fire Strike did.
So after several houres of Fire Strike loops I stopped with:
1176 MHz core
6600 MHz memory
and with 82,7 % power target, reached under 99 % GPU load @ max 79° C on stock air cooler.
Scoring very low in Cloud gate due to my outdated CPU that I will soon replace by i7-4470K.
Let's make on last calculation to find out, how many Watts represents 82,7 % power target out of 85 % power target possible before TDP limit/power target kicks in, making my clocks throttle/fail.
85 % pt = 297,5 W
82,7 % pt = ? W
82,7x297,5:85 = 289,45 W
So running these clocks @ 99 % GPU load @ 1.162 V under Fire Strike, my Titan will in worst case draw 289,45 W out of 297,5 W possible, this way nevey hitting the TDP limit/power target and will be within 300 W physically.
By the way, my Titan is an ASUS with 78,2 % ASIC and 1006 MHz at stock 1.150 V out of the box.Edited by Groove2013 - 5/30/13 at 6:53pm