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The 55nm GTX 260 216 Overclock Thread - Page 84

post #831 of 984
Quote:
Originally Posted by XxBeNigNxX View Post
This is one of my BFG GTX 260 OC2's It ran furmark for 20 min no artifacts and no shut downs, as I just wanted to bench it I didn't try to grab more SS.

It's on the stock cooler

I don't know the voltage as i don't use Riva tuner so i would think stock lol.

Am very pleased with this card...Still have 2 more to try lol




http://www.techpowerup.com/gpuz/vga2g/
that is an amazing overclock..
can't seem to squeeze anymore out of mine
    
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post #832 of 984
I have question about power for GTX260 Tri-SLI. I'm about to set my system up with an EVGA 780i motherboard and 3 GTX260's. My question is will my Corsair 750 watt PSU will be enough to handle it at full load or not?
post #833 of 984
That is the psu that I am going to get for my sigrig eventually. Just for the sli option cause this is still a great mobo and my Phenom is running quite well. But the tx750 only has 4 pci-connections so you will be missing a set for your 3rd gpu. I think you'll have to go with the hx850 and spend a bit more for the 6 connections.
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post #834 of 984
Quote:
Originally Posted by G-Byte View Post
That is the psu that I am going to get for my sigrig eventually. Just for the sli option cause this is still a great mobo and my Phenom is running quite well. But the tx750 only has 4 pci-connections so you will be missing a set for your 3rd gpu. I think you'll have to go with the hx850 and spend a bit more for the 6 connections.
That's ok I can use the molex adaptors that come with the cards. I just need to know like if physically it's enough power that I won't have to worry about it at full load.
post #835 of 984
Quote:
Originally Posted by Open1Your1Eyes0 View Post
I have question about power for GTX260 Tri-SLI. I'm about to set my system up with an EVGA 780i motherboard and 3 GTX260's. My question is will my Corsair 750 watt PSU will be enough to handle it at full load or not?
Yeah it'll handle it fine.
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post #836 of 984
Quote:
Originally Posted by wierdo124 View Post
Yeah it'll handle it fine.
Awesome thanks for the info.
post #837 of 984
Quote:
Originally Posted by Open1Your1Eyes0 View Post
Awesome thanks for the info.
Many people run HX520s and dual GTX260s. I can't imagine the 750 having any issues. Corsair makes excellent PSUs. Nothing to worry about man.
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post #838 of 984
Quote:
Originally Posted by XxBeNigNxX View Post
This is one of my BFG GTX 260 OC2's It ran furmark for 20 min no artifacts and no shut downs, as I just wanted to bench it I didn't try to grab more SS.

It's on the stock cooler

I don't know the voltage as i don't use Riva tuner so i would think stock lol.

Am very pleased with this card...Still have 2 more to try lol




http://www.techpowerup.com/gpuz/vga2g/
WOW that is impressive.

Mine wont go past 1500 shaders and 710 core without artifacts.
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post #839 of 984
Quote:
Originally Posted by XxBeNigNxX View Post
This is one of my BFG GTX 260 OC2's It ran furmark for 20 min no artifacts and no shut downs, as I just wanted to bench it I didn't try to grab more SS.

It's on the stock cooler

I don't know the voltage as i don't use Riva tuner so i would think stock lol.

Am very pleased with this card...Still have 2 more to try lol


http://www.techpowerup.com/gpuz/vga2g/
Holy hell man! Wow guys, these are some serious impressive overclocks.





EDIT: sigh... looks like my card is artifacting now at my earlier safe clocks. I don't see it in games but after 5 mins in ATI tool it's reporting errors.

I looked at page 24 of this thread and someone posted a link one how to flash your card with a different bios (to up the voltage). Can't seem to create the necessary startup disk for some reason. I boot and I just get nothing (I set the usb to boot first). Don't know what's wrong but I think that the guide was created with XP in mind.

Anyone have any suggestions?

EDIT2: I'm now thinking that my previous clocks (749,1615,1250) were all stable only because of the temps at the time. When running over 700 or 1500 shader, the card doesn't like to be too much over 60c and in the summer now, it's going up to 71c sometimes. Looks like maybe I need a better cooler (water cooled) and then I'll try shooting for higher clocks - that 800/1700 is really impressive and hopefully when I get this running cooler I get achieve that (maybe not exactly that but higher than I got before).


EDIT3: Okay, after messing with the boot disk thing for a few more hours, I finally created a bootable usb drive - the directions at the site were completely wrong and I only fixed it by chance (thankfully).

I upped the extra voltage to 1.18 from 1.12 and the overclock is back! Ran ATItool for 20 mins with no artifacts - the house is a little cooler than earlier and so is the card so I'm not dismissing the temp theory yet. I'm back at my old clocks and I'm going to see if I can push it higher. If so, I'll definitely know the extra volts helped.

Still gotta find a new cooler/heatsink though so I gotta start looking into that.

FINALEDIT: I did get higher with raising the extra voltages but only when my card stayed under 68C. I ran atitool for 20 mins and all was well. I turned off the AC in the house and let the card gain a few more degress, ran the same test again (with same clocks) and it errored at about 7 mins in. I definitely gotta find a better heatsink/cooler if I want to take this thing to the max.
Edited by PhilB - 7/22/09 at 4:14pm
post #840 of 984
I don't understand why you guys are stressing your VGAs like that. It's one thing to see what you can get out of it, but to run it like that doesn't make sense to me. I run dual GTX 260 216 cores and I clock them down to 470/1015/790 and they stay below 50C under load. I also always run max settings in my games and never have any FPS issues with vert sync on; they stay locked in at 60FPS. I will crank them up some if I need to for a demanding game once in a while, but I have found I get better performance with O/Cing my buss speeds and CPU rather than my VGAs.
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