My new GTX 760 has arrived

[nikolarun]

Hi All,
I got my KFA2 GTX760 EX OC today.
It came factory over-clocked to 1059Mhz GPU / 1502Mhz Ram ( standard ) .
I managed to get it stable at 1189Mhz GPU /1852Mhz Ram with GPU-Z reported boost of 1241mhz but the card was going up to 1293Mhz.
This with standard voltage.

Is it safe to increase the voltage on these chips ? it's maxing out at 1.2v at the moment, but under load I can see it's sitting at 90% of TDP, so there might be some room to improve the clocks.

Some reviews of the card show up to 1296Mhz on the GPU clocks , but it might have been a binned chip.

Nick

 

[Intel God]

Post up some 3dmark links. Are you maxing out Target power and temp in precision or msi afterburner?

 

[nikolarun]

Not maxing either. using msi afterburner.
here is a link to the 3d mark scores.

http://www.3dmark.com/fs/592225

 

[Intel God]

Not maxing either. using msi afterburner.
here is a link to the 3d mark scores.

http://www.3dmark.com/fs/592225

For the best scores you want to max out the target power and temp slider

 

[nikolarun]

already maxed to 125 for power and the card barely touches 75'C under heavy load, fan is at 58-59% . That is not the issue I am afraid.

 

[Intel God]

already maxed to 125 for power and the card barely touches 75'C under heavy load, fan is at 58-59% . That is not the issue I am afraid.

Have nothing to be afraid about. Have you tried turning up the fan curve?

 

[nikolarun]

I will do another run with fan at 100% , but I am thinking it is voltage limited, as the temps are nice and low.

 

[Intel God]

I will do another run with fan at 100% , but I am thinking it is voltage limited, as the temps are nice and low.

The 760 is limited to like 1.21v so no worries

 

[nikolarun]

Right I did a run at 100% fan, and it crashed at 1209Mhz core while running at 55'C, so not temp related.
with a bit a tweaking to the curve I could get it to run at 1199Mhz.
Is it safe to over volt this card a little bit ? what is the limit ?

 

[nikolarun]

Looks like MSI afterburner doesn't unlock the voltage control

 

[Intel God]

Looks like MSI afterburner doesn't unlock the voltage control

Which version of afterburner are you using?

 

[nikolarun]

2.3.1
I can get it stable at 1199Mhz but not at 1200Mhz. It seems that this is the limit of my gpu with ram running at 1852Mhz

 

[Intel God]

2.3.1
I can get it stable at 1199Mhz but not at 1200Mhz. It seems that this is the limit of my gpu with ram running at 1852Mhz

Try 3.0 Beta 10

http://www.guru3d.com/files_details/msi_afterburner_beta_download.html

 

[nikolarun]

Thanks,
I just installed it and it does allow voltage adjustments. So will do a run at the max +12 which results in about 1.21v and will report.
Thanks for your help

 

[Intel God]

Thanks,
I just installed it and it does allow voltage adjustments. So will do a run at the max +12 which results in about 1.21v and will report.
Thanks for your help

Anytime

 

[nikolarun]

So, I can get 1200Mhz stable but anything over and it crashes even with the higher voltage. so this seems to be the limit of the chip...
GPU-z is reporting performance cap due to VREL and VOP . i will dial it down to 1199 as I can get this stable at the default voltage and see if I can get a bit more from the memory.

Regards
Nick

 

[Intel God]

That memory clock IMO is impeding your overclock. Drop it down to +400 on the memory

 

[nikolarun]

thanks I will give that a go.

 

[nikolarun]

that didn't help . definitely GPU limited. I also ran a test with the default ram speed, still crashing at anything over 1200.

 

[nikolarun]

so RAM is up to 1900Mhz and it is the best I can get.
Final clocks are 1199Mhz GPU - 1306Mhz boost and 1900Mhz RAM.

Are you aware of any way to disable boost ?

 

[Intel God]

so RAM is up to 1900Mhz and it is the best I can get.
Final clocks are 1199Mhz GPU - 1306Mhz boost and 1900Mhz RAM.

Are you aware of any way to disable boost ?

1900 memory is 7600mhz effective. Are you having any visual anomolys showing the memory might be clocked too high?s

 

[nikolarun]

No issues at all. If I push it to 1902 I get flickering and the benchmark crashes. I have not ran any games yet, but will test and report.
1900 seems to be what others are getting with the 760s

 

[Intel God]

No issues at all. If I push it to 1902 I get flickering and the benchmark crashes. I have not ran any games yet, but will test and report.
1900 seems to be what others are getting with the 760s

Wow thats pretty impressive for 6000mhz effective rated memory

 

[nikolarun]

yeah, I only tested with Unigine Heaven 4.0, Sanctuary and 3d mark

 

[EatMyPizza]

Hi All,
I got my KFA2 GTX760 EX OC today.
It came factory over-clocked to 1059Mhz GPU / 1502Mhz Ram ( standard ) .
I managed to get it stable at 1189Mhz GPU /1852Mhz Ram with GPU-Z reported boost of 1241mhz but the card was going up to 1293Mhz.
This with standard voltage.

Is it safe to increase the voltage on these chips ? it's maxing out at 1.2v at the moment, but under load I can see it's sitting at 90% of TDP, so there might be some room to improve the clocks.

Some reviews of the card show up to 1296Mhz on the GPU clocks , but it might have been a binned chip.

Nick

You lucky bastard. I can't wait to get my hands on the gigabyte windorce OC 760 I ordered and see how it OCs. I will probably be on here for help too since Im not familiar with the whole GPU boost thing. My old 460 was great so I'm looking forward to it. Judging from the reviews I've read it 760s seem to max out alittle over 1300mhz boost, so that's what I will shoot for.