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GTX 560 Ti 448 core OC Club - Page 93

post #921 of 2759
I'm having a weird problem. I have a Zotac 448 with a stock memclock of 765/950. When I overclock it to 800mhz (should be no problem at all) my gefore drivers crash when running 3dmark2011. What's wrong with that? My games play perfectly on 800mhz (mw3,bf3)

Is this already the limit for this card? I'm watercooling the card and the temp never reaches 35 degrees during playing. Is there a way to increase the core voltage? Afterburner doesn't work on my card. I would like to change the bios but nibitor doens't work with these cards... the goal is at least 950mhz in SLI with another 448 that's on the way.
post #922 of 2759
Quote:
Originally Posted by SonDa5 View Post

Thanks Cowie! smile.gif
Your temps look great.
I'm working on a custom water cooling solution myself and should have it up and running within a week. Waiting on a few parts I ordered.
Any 1GHZ benchmarks? Faster? How fast are you able to go?
I'm sure i can go faster but have been hesitant in adding alot of voltage till i have the card frozen.Just tried 03@1g thats it not any other benches
You will love it on water,if you have great temps my results should be easy within reach
Quote:
Originally Posted by SonDa5 View Post


How did you unlock the voltage to 1.2v without an editor? Is the BIOS that you posted modified for higher voltage?
I used nhibitor but needed to use a few tricks to get it to work,i'd rather not say how i did it publicly.
anyway with 1.21v +150mv its easy to get fires started

you can get up to 1.25v without the flash if you have an MSI card just use my little combo trick.
use nvidiainspector for 1.10v close i,then just add ALITTLE more with ab;)
just dont say i did not warn you to be carefull biggrin.gif
Edited by cowie - 2/12/12 at 3:52am
post #923 of 2759
Cowies unlocked MSI vbios is rly nice. I flashed this one yesterday and try to reach a higher memory clock. It works! Now i got a memory clock of 1075! With my Gigabyte vbios there was no way to reach a clock over 950... :/
post #924 of 2759
Quote:
Originally Posted by Visa Declined View Post

I hang out on the eVGA forums as well, and a lot of us ordered the Classified cards around the same time. As the cards started coming in, it was apparent that the default voltages were all different, some were as low as 1.013v and as high as 1.050v. I found that a little odd because the reviews I read on the card reported the voltage as being 1.025v default.
I was happy when my card arrived and it's vtt was 1.025v Within the hour I pushed the core slider in Precision to 900mhz without touching the voltage, and played BF3 for the rest of the night. After I saw the "560Ti OC" thread on these forums the next day, I wanted to get a 3dmark11 score to compare to theirs, so I ran the benchmark at 950mhz core, 1.025v.... and it hard locked. After rebooting, I checked my 950Mhz overclock in OC Scanner and it quickly started picking up artifacts. I used EVTuner to to bump the voltage up one notch, which was 1.038v, and then scanned for artifacts again(there were none).
Feeling confident, I went ahead and ran 3dmark 11 again without a hitch, and I've been playing BF3 and Crysis 2 on this overclock setting, I think the 448 core cards are great.




How do you check the voltage of the card?
B.K.T.
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De-Lidded direct die mount Intel i7-4790k No IHS ASUS Z97 WS Sapphire HD7950 OC 950mhz Edition Sapphire HD7950 Vapor X 
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B.K.T.
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post #925 of 2759
B.K.T.
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B.K.T.
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post #926 of 2759
howto vbios editing for 560ti 448 cores

1. download the latest nibitor ( 6.03 )
2. save the vbios from GPU-Z
3. open the vbios in nibitor ( it says that it could not find the clockrates )
4. go to the Adv. info tab
5. Change your device to the second GTX570
6. your device id should change to 1086
7. Rescan the vbios
8. Now you can edit the vbios ( Fermi clocks and voltage )
9. Change the device id to 1087 and save!


I do not assume any liability or guarantee for all editing and flashing.
post #927 of 2759
Did a quick and dirty overclocking scaling comparison with FarCry2 benchmark.
ZILFPl.png
Edited by Glottis - 2/12/12 at 6:37am
post #928 of 2759
Quote:
Originally Posted by cowie View Post

you can get up to 1.25v without the flash if you have an MSI card just use my little combo trick.
use nvidiainspector for 1.10v close i,then just add ALITTLE more with ab;)
just dont say i did not warn you to be carefull biggrin.gif

I have MSI and that worked. I will be careful. Thanks. thumb.gif
B.K.T.
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De-Lidded direct die mount Intel i7-4790k No IHS ASUS Z97 WS Sapphire HD7950 OC 950mhz Edition Sapphire HD7950 Vapor X 
RAMHard DriveHard DriveHard Drive
GSkill 2400mhz CL9  Samsung 840 caviar black Hitachi 
Hard DriveOptical DriveCoolingCooling
OCZ AGILITY 4 LG 16x BD burner DT Sniper CPU block Watercool HEATKILLER® GPU-X³ 79X0 Ni-Bl  
CoolingCoolingCoolingOS
Swiftech pump 655 Alphacool NexXxos UT 60 420mm 3x140mm Bgears 1800 RPM fans in pull on radiator Windows 7 Pro 64bit 
MonitorKeyboardPowerCase
BenQ XL2410T SS 6gv2 Seasonic Platinum 860 Silverstone Raven RV02-BW 
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B.K.T.
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RAMHard DriveHard DriveHard Drive
GSkill 2400mhz CL9  Samsung 840 caviar black Hitachi 
Hard DriveOptical DriveCoolingCooling
OCZ AGILITY 4 LG 16x BD burner DT Sniper CPU block Watercool HEATKILLER® GPU-X³ 79X0 Ni-Bl  
CoolingCoolingCoolingOS
Swiftech pump 655 Alphacool NexXxos UT 60 420mm 3x140mm Bgears 1800 RPM fans in pull on radiator Windows 7 Pro 64bit 
MonitorKeyboardPowerCase
BenQ XL2410T SS 6gv2 Seasonic Platinum 860 Silverstone Raven RV02-BW 
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post #929 of 2759
Quote:
Originally Posted by wimo View Post

I'm having a weird problem. I have a Zotac 448 with a stock memclock of 765/950. When I overclock it to 800mhz (should be no problem at all) my gefore drivers crash when running 3dmark2011. What's wrong with that? My games play perfectly on 800mhz (mw3,bf3)
Is this already the limit for this card? I'm watercooling the card and the temp never reaches 35 degrees during playing. Is there a way to increase the core voltage? Afterburner doesn't work on my card. I would like to change the bios but nibitor doens't work with these cards... the goal is at least 950mhz in SLI with another 448 that's on the way.

Did you raise the voltage any? You may have hit the peak at the stock voltage.
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Optical DriveCoolingCoolingCooling
LG DVD EK Supremecy CPU EK GTX 980 Ti Black Ice SR-1 360/240 
OSMonitorKeyboardPower
Windows 7 Pro Asus 23" LCD 1080p X3 Nvidia Surround Logitech G510 Corsair 850TX 
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post #930 of 2759
Quote:
Originally Posted by cowie View Post

Testing a h70 cooler mod and wanted to get a modded bios on too so...
here is a unlocked to 1.21v msi 560 448 ti i even flashed in windows redface.gif
http://speedy.sh/jWjuH/MSI448ti121v.bin
Working ofcoarse
.338
338
Just make sure you have good cooling and keep it safe wink.gif

Nice work! thanks for the bios. Will test it out later.
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