Overclocking my MSI GTX 560 Ti Twin Frozr II/OC

Okay, so I haven't really done too much overclocking on video cards with increased voltages, and I need the help of the resident overclocking gurus! So far I've managed to overclock my card through MSI Afterburner giving me a 970/1940/2300 (voltage not touched) over the stock OC of 880/1760/2100. This is about the highest I can get the card (stable) without the driver crashing on the stock voltage. I like the nice little increase I've gotten so far, but I want MORE... and I KNOW there's MORE TO BE HAD!

So, my question is this: Any tips on how much voltage I should increase by and when should I stop? What would help me gain more FPS, higher core clock or higher memory clock?


GPU:
MSI GTX 560 TI Twin Frozr II/OC
- Stock OC: 880/1760/2100
- Current OC: 970/1940/2300
- Fan: Custom settings (temps never see over 65 degrees at full load)

Benchmark/Testing:
- Unigine Heaven
- 3DMark11
- Any other free bench/test programs you can recommend?

System:
- 2500K @ 4.4ghz


I'll post up pictures later when I get home from work; I really want to see over 1ghz on the core.
Thanks

Okay, here's what everything looks like right now...

Here's with the 1.1v; should I go any higher?

Here's some of my comparisons from Heaven benchmark as far as frame rates with the core bumped up, and the memory around the same:

880/1760/2100 (stock)
- FPS: 31.0
- Scores: 780
- Min FPS: 14.6
- Max FPS: 79.5

1010/2020/2100
- FPS: 33.8
- Scores: 852
- Min FPS: 16.6
- Max FPS: 86.3

1015/2030/2200 (highest I could get stable)
- FPS: 34.5
- Scores: 868
- Min FPS: 16.0
- Max FPS: 89.0

I was really pushing the card, benchmark after benchmark; I'm sure the temps were what made the "min fps" drop between the 1010 & 1015 clock. Right now I have the card running at 1000/2000/2400 (@ 1.1v) which keeps the card cool enough, yet put out decent frames.

1000/2000/2400
- FPS: 35.1
- Scores: 885
- Min FPS: 16.3
- Max FPS: 89.7

Quite adventurous of you to embark on such a perilous journey...

I have the exact same card as you.

However,I don't know how to unlock the voltage adjuster in AFTERBURNER=(

toneekay,would you be so kind as to share your "secret" with me...

My rig specs:

CPU:i7-3930k (Stock)
MOBO:ASUS X79 SABERTOOTH
HSF:Noctua DH-14 SE2011

I use FurMark and FluidMark to bench my gpu.

At stock volts the GPU running@ 850/1700/2125 with 2560x1440 res
was under alot of load...90-95% gpu stressed,but surprisingly the memory was
only at about 25% usage. Temps were fine GPU 55C,basically I feel the memory
could go higher and the CPU might be bottlenecking my GPU...is there a way of
enabling "Turbo Boost Tech 2.0" to constantly "overclock" the CPU Mhz to 3.5-8 vs 3.2

As I do not want to "VOID" the warranty with this new processor.

PS.Does MSI allow voltage to be modified to GPU,and still be valid for warranty if anything
goes BoOm!!!


togan

Not sure if anyone is following this, but I have put the voltage back to stock (1.025v), decreased the clock/ram speeds, and preparing my setup for another 560Ti for SLI


Here's some updated benchmarks from Heaven with my new monitor; finally running 1920x1080 (before it was like 1366x768).

Stock 880/1760/2100:
FPS: 20.6
Min: 7.1
Max: 49.7
Score: 519

925/1850/2200:
FPS: 21.6
Min: 7.7
Max: 51.9
Score: 545

950/1900/2300 (current):
FPS: 22.4
Min: 7.9
Max: 54.7
Score: 565


After I get my second card here in a couple days, I'll also post up benchmarks to compare single vs. dual. Along with that receiving the new card, I'll be overclocking BOTH to the 950/1900/2300 speeds posted above and keep it there... I don't want to bump up the voltages since I want to make the cards last for as long as I can (which is the reasoning for bringing down the voltage on my current card).

Still trying to find best config for perf/stable

toneekay:

Here is latest OC for my MSI N560GTX Ti 448 PE/OC

STOCK:VDDC=0.975v
GPU CORE:750
SHADER:1500
MEMCLK:975(1950)

OC:VDDC=1.050v
GPU CORE:900
SHADER:1800
MEMCLK:1050(2100)

I never did get AFTERBURNER to let me play around with VOLTAGES =(
So I used Nvidia Inspector instead

PS. I ran this OC profile through EVGA OC SCANNER and the Stress Test found NO ARTIFACTS
Do you think this is safe OC to run 24/7 for mainly gaming purposes...TEMPS are under 70C with 90% GPU LOAD during STRESS TEST.

PPS: Off to run more Stability Tests FURMARK/HEAVEN

togan

toneekay:

With the GPU now stable and optimized,do you know how to OC CPU...

I am thinking of using my ASUS OC TUNER from X79 SABERTOOTH,however I don't really want to OC the RAM
and I see that the OC TUNER overclocks BOTH at same time

I only want a mild OC on the CPU,say 4ghz from 3.2ghz so only 800mhz increase...

PS.As for OCing the GPU,with my native res monitor 2560x1440,would upping the MEMORY SPEED CLOCK of VRAM
give more performance or should I stick with higher CORE/SHADER CLOCK...I usually don't bother with any form of AA
while gaming.

PPS.I adjusted the VDDC on GPU to 1.038,seems stable...

Thanks
togan