Hey all,
As an interim option prior to doing my complete new build - likely in the autumn now, as I don't really game so much if the sun is shining - I picked up a Palit GameRock GTX 1070.
The 1070 is running in an older rig:
2600k @ 4.4ghz
Gigabyte Z68X-UD7-B3 Motherboard
32gb DDR3 1600
2x Samsung EVO 850's RAID0 (new)
Corsair HX750 PSU
W10 Pro
I've been fairly impressed with this card out of the box, it's fairly large but that's due to its excessive cooling. I'm yet to see it go above 69c during benchmarking, that's with it boosting to ~1900mhz and fans remaining below 50% - ambient temp was low 30's during this testing.
Anyway, as the card had been performing so well untouched, I thought I'd have a tinker at overclocking. This GPU is marketed as an overclocker, with 8 phase power, OTT cooling and supplied OC software - that's based, like so many are, on RivaTuner.
My initial tinkering involved
just setting GPU Core Offsets, no Power or Voltage tweaking. Seem +100 on Core = 25/30 actual Mhz increase, however card does start reporting being "Pwr" limited (GPUz) so I popped the Power Target up to 110% (114% seems limit in tool) and that seemed to help.
Doing this, I got up to 2ghz fairly easily, temps
still not going over 69c. I pushed a little further to 2025mhz but ran into some slight instabilities - not unexpected. So, I thought I'd add 2% to the GPU vCore and re-test. Same result. 5% on vCore. Same result again.
Double checking, it appears that my vCore increases do NOT actually make any changes, my 1070 always shows 1.065v peek under heavy load, no more irrespective of the voltage increase % I set. Seems it's LOCKED on a card marketed as an overclocker...surprising.
To be clear, I'm using the official Palit OC "ThunderMaster" and the voltage slider is of course enabled and can be moved, but has no actual on card effect.
I've just downloaded MSI Afterburner 4.3.0 beta 4 and will try that later.
Anyway, just thought I'd share
Scoob.
