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Can someone tell me how this sounds? I've no experience OC'ing video cards but I understand how to.
I am using afterburner on a reference card.
Power target - 132%
Core clock + 150Mhz
Mem clock + 150Mhz
No artifacts after about a half hour of gameplay in BF3. Temps just under 80.
Are the clocks based off of idle or boost? As in will I always be idle at 1006Mhz and boost up to 1208?
I don't think that's entirely correct. I've never checked with a multimeter but higher speeds are definitely usable now than before modding and Afterburner reads 1.21 now.I thought the 680 runs at 1.21 already and 1.175 is what we see in windows?
Okay, the tool works 100%. I was just testing +150%, +160 core and +250 memory. Both cards are running at 1359MHz on the stock coolers at 1.21v. This is on vanilla EVGA GTX 680s from launch. Awesome!
Just an FYI, if you hit 70 C or higher, the GPU will automatically downclock a bit. So if you're hitting almost 80 you won't be getting the full boost speed you set.
I've been hitting over 70 even without an OC. I leave the fan running on auto. Should I be aiming for sub 70?
Okay, the tool works 100%. I was just testing +150%, +160 core and +250 memory. Both cards are running at 1359MHz on the stock coolers at 1.21v. This is on vanilla EVGA GTX 680s from launch. Awesome!
Got this weird issue with my galaxy 680 soc. I can only reach 120% power target in precision and afterburner even though my card has two 8 pin pciexpress connectors. Any ideas on what's going on?
Different cards have different power limits. Since the power available is already higher with the 2x8 pins, the % you can increase it is lowered. The total power is what is being limited. At least that's the way I remember it - it's been a while since I looked at it though.
Oh I thought it was the opposite with the 2 8pins providing a higher power availability to the card.
My card that ran in the low 1200s now runs at 1300mhz after this update. It seems temperature keeps it held back as it scales a few mhz back when it hits 70c even with a boosted fan profile. I think it's time for me to lap my heatsinks and apply some MX-4 Tim on these. I just received the Tim but gotta buy the sandpaper and spray's for the project. Hopefully I can get my lower end card of the 2 up to par with my main card which can do over 1340mhz
After which update?
Picked up an unbranded Geforce 680 off of Ebay for $339. Flashed it with the KGB bios. With the unlocked bios,I can run the card with boost at 1293 and mem at 7200. I am seeing the 1.21 volts in the afterburner log. But thing is as soon as it hits 70c, it downclocks to 1173 core. Without the kgb mod, I get max boost around 1228, but at 70C, it only downclocks to 1215. Think I'm sticking to the stock bios, because its almost impossible for me not to hit 70C, even with a custom fan profile.
Another thing is, I lapped and repasted the heatsink, as well as installed the highflow backplate. Before the mod I was idling at 50, load around 81C. Now I idle at 33 load 71C. And load is running Heaven or 3dmark. With normal games, it never gets above 70C. So those users with high temps might want to consider repasting the heatsink.
trying to use NVflash to flash my bios. however when i do i get a message indicating incompatible with the windows im using. how do you get around this as NV Flash indicates compatible with win 7 64 bit (mine is Pro)? thanks
I have a EVGA 680 4GB. Stock 1019, Boost 1084.
I have overclocked it to +166 (1250) so far. I can't push past that without Heaven failing, everything on max. I can however get to 1350 while running the fuzzy donut without artifacts. +550 (7100) on the Memory btw, but I'm sure I can bring that higher.
1) I haven't changed the fan profile, so that should help. Def hitting the 70C wall.
2) I haven't flashed the bios. Gotta learn more about the benefits before I void the warrantee in the name of 1fps.
3) I need to push the core up as I push the mem up and hopefully they will yield a boost of some sort when done together. Gatta wait till I get home from work.
I don't care if I get crazy clocks, but whatever it takes, this card is going to 1300Mhz stable in Heaven or will die trying.
Got the GTX680 OC'ed tp 1280Mhz. Trying to push 1300Mhz. Might not be possible without bios/voltage mods though. But right there. I gotta push another +17Mhz on the core to do so. I adjusted the fan curve and it helped by about 1.5 fps. Its something.
Got that mother to 1293Mhz. But if I don't raise the clock my like +10Mhz, it does not register as 1303Mhz. It will stay at 1293. Guess that's the software.
If you are sticking with the reference cooler, I would recommend everyone remove the pre-applied thermal paste. I removed the pre-applied thermal paste and used some MX-2. My idle temps went from 34-35 down to 27-28. My full load temps from from 74-75 down to 67-68. Tests done in Heaven 4.0 Extreme.
I have not overclocked yet, but I have started down that road with my cooler mod.
I thought I would throw out a pic for anyone thinking about it.
https://lh3.googleusercontent.com/-gx1IkpiKlXg/UNSbjwYjzdI/AAAAAAAAILE/QBpTOocQABo/s400/IMG_20121221_012251.jpg
Holy Balls. Did you run into any complications when doing so. And what style in application of thermal paste did you use? Line, Dot, X, smooth?
is that your graphics card on a carpet?
yep!
Ever Kill a Card / Board with Static? I have, not much fun...especially after you put that time and effort into mounting the cooler on 'er. Id suggest keeping your electrical components off surfaces that breed static like its going outta style lol.
I did it. Got that bitch to 1306Mhz. Had to bring the Mem clock from 3530 to 3310, but that did the trick. Success!