Hi Guys,
I always thought that powertune allowed a higher "Overshoot" before the clock was throttled and as suich, I have always slid it to +20% and forgotten about it.
However - I have been pushing my OC's a lot more recently and have got round to experimenting with this and found it actually makes things WORSE not better... and thats on benches like 3Dmark Fire Strike, Catzilla, Heaven 3.0 etc.
I realise this may be an anomaly with my system, or even an anomoly with the 13.2 beta 5 drivers on my trifire system, so in an effort to figure out why this may be, I spent all of last night playing with OCCT on 5 min, 2gig runs on level 7 @ 1920x1080 with error checking enabled and I was very surprised to learn that, I ALWAYS get more errors with Powertune higher than zero and find the only way to get an error free run above 1150mhz is to set it to zero and adjust the GPU voltage instead.
Example only... not exact figures but certainly representative:
For reference:
I always thought that powertune allowed a higher "Overshoot" before the clock was throttled and as suich, I have always slid it to +20% and forgotten about it.
However - I have been pushing my OC's a lot more recently and have got round to experimenting with this and found it actually makes things WORSE not better... and thats on benches like 3Dmark Fire Strike, Catzilla, Heaven 3.0 etc.
I realise this may be an anomaly with my system, or even an anomoly with the 13.2 beta 5 drivers on my trifire system, so in an effort to figure out why this may be, I spent all of last night playing with OCCT on 5 min, 2gig runs on level 7 @ 1920x1080 with error checking enabled and I was very surprised to learn that, I ALWAYS get more errors with Powertune higher than zero and find the only way to get an error free run above 1150mhz is to set it to zero and adjust the GPU voltage instead.
Example only... not exact figures but certainly representative:
- Core 1150
- Volts 1.150v
- P-tune (Power li) 0%
- Error free run over 5 mins.
- Core 1150
- Volts 1.150v
- P-tune (Power li) 20%
- 25000 Errors over the 5 mins run.
- Core 1150
- Volts 1.200v
- P-tune (Power li) 0%
- Error free run over 5 mins.
For reference:
- Cpu = 3770K @ 4.7ghz
- Maximus IV Extreme-Z
- 3x Sapphire 7970HD's
- All heavily watercooled with max temps on Core / Vregs of 45c
- Sapphire Trixx 4.4.0 modded for mem voltage adjustments
Last edited: