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gigabyte 7970 with ek-block
1300/1850 @ 1.225 ( reading about 1.16~1.17 in gpu-z on load )
Up to 1.3V is safe as long as your keep your temperatures in check.Guys what safe voltage bump? My card default is 1050, I'm running it at 1150/1800 on all 3 cards in tri fire
Guys what safe voltage bump? My card default is 1050, I'm running it at 1150/1800 on all 3 cards in tri fire
thanks man
its going 1300/1900 now
ASUS bios: 1.4v vddc / 1.75v mvddc on water, your temps would still be reasonable. No worries - APS & OCP will keep you from damaging your card, just keep monitoring your temps in GPU-z. Then 1400/2000 is possible DO IT! (oh yeah and post a screenshot showing your asic qual too! )
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A Little help
I consider my self a relatively adept overclocker but my Sapphire 7970 Dual-X (not the OC version) card has me baffled.
It runs 950/1425@1,175V stock.
I got it to 1150/1600 @ stock voltage hitting 75 degrees with 100% GPU after a 10 min burn.
Method: 25Mhz increase on core clock, 2 min burn, no artifact...repeat, same with memory.
I got it to 1200/1600 @ 1,2V (0,025 increase) voltage hitting 78 degrees with 100% GPU after a 10 min burn.
Method: 25Mhz clock increase, 0,08V increase steps, 2min burn.
I decided it was not worth it and reduced to 1150/1600 @ stock voltage after about 30 min's of OC'ing
Then I did some watt measurement and found out that ANY increase in memory clock would result in +70W usage when the card was idling in 2D mode and that kinda ticked me off since the memory increase only gave FPS 3-5% increase.
My end clock was a simple 1150/1425 @ std voltage which gave me a 18% FPS increase.
I used TriXX for OC.
I used this in games for about 4-6 hours then a PC reboot and suddenly all games crashed on startup, after reducing core clock to 1100 they worked fine again.
Now I have artifacts even @ stock clock in all games.
Any ideas on what i did wrong?
Thanks
*edit*
Woups, sorry for the minor necro :-/ didn't see that it was a month since last post
I find it interesting that by trying to up the GPU to anything higher than 1250, regardless of voltage, I start getting the white dots inside textures. this is on water, temps never higher than 41'C during gaming
You find that interesting?
That's perhaps the most common thing in all of overclocking!
Sometimes you just don't get a card that clocks high regardless.
damn bro, can't you just let me rationalize in my mind that my card is broken!?
and 1250 is high-ish... i guess?
Holy Moly that is a beast overclock. Golden sample card for sure if the asic does 1.4g. 8 GHZ memory! [H]ard for sure! Damn mang, maybe 2100?
Also droop on vddc 1250mv -> 1180mv. 1400mv -> ~1310mv? edit: i think if you use gputweak to set core, you'd then have to bump up the memory with afterburner, unless you made your own clock tables
I haven't been following the 7000 series cards, how do you know if they're voltaged locked?
yeah, but the ghz cards have boost which is disabled as soon as you change the clocks, so there is still some value there.
84C is pretty high. And FYI furmark is not really a valid testing software anymore. Try Valley benchmark looped for a more accurate stability/temp test.