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Help Overclocking Sapphire Vapor X 7970 GHZ edition

post #1 of 7
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Anyone know how to help me with this, perfer to get my max without having to mess with voltages. Should I just use the boost or can I go a little higher than it and not worry about over doing it?

I've upgraded some parts and this is my setup right now.

CPU - i5 2500k @ 4.3ghz | CPU Cooler - Hyper 212+ | Motherboard - ASRock Z77 Extreme4 | GPU -Sapphire Vapor X 7970 GHZ | SSD - Samsung 840 128 GB SATA | RAM - 16GB Kingston Hyper X | PSU - Power and Coolir MK III 600W | Case - Thermaltake Element V Black Edition Steel Full Tower | Monitor - Samsung Black Lit LED 22" | Keyboard - Corsair Vengeance K90 | Mouse - Mionix Naos 5000 |
post #2 of 7
Quote:
Originally Posted by kuruptx View Post

Anyone know how to help me with this, perfer to get my max without having to mess with voltages. Should I just use the boost or can I go a little higher than it and not worry about over doing it?
I've upgraded some parts and this is my setup right now.
CPU - i5 2500k @ 4.3ghz | CPU Cooler - Hyper 212+ | Motherboard - ASRock Z77 Extreme4 | GPU -Sapphire Vapor X 7970 GHZ | SSD - Samsung 840 128 GB SATA | RAM - 16GB Kingston Hyper X | PSU - Power and Coolir MK III 600W | Case - Thermaltake Element V Black Edition Steel Full Tower | Monitor - Samsung Black Lit LED 22" | Keyboard - Corsair Vengeance K90 | Mouse - Mionix Naos 5000 |

hey man i have the same exact card , i can get 1125 core and 1575 memory without having to mess with voltages at all , just open the ccc and try to find your max using the built in amd overdrive settings , then test using bf3 crysis 2 and heaven each for an hour let's say maybe your card can get better clocks than mine
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Zero Ex 2
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post #3 of 7
I also have same card.

For my card it really doesn't matter if I use boost - mode or not. Voltage is always 1.256 when card is under the tress and I can't give more voltage to the core because it's locked by bios. With that voltage I can hit 1185Mhz to the core and card is stable as a rock. I can run benchmarks at higher clocks (1220Mhz), but when gaming I'm using 1185Mhz just to make sure that I wont have any graphical issues or troubles with the performance.
Use HWinfo32 where you can monitor you gpu temps and voltages. Check there what is you stock voltage. I have learned from here OCN that 1.256 voltage is good voltage for 7970 and you shouldn't go much more higher of that. For memory I can adjust more voltage using Trixx, but I use stock voltage and stable mem clock for me is 1600Mhz. Vapor - X cooling makes very good job, so there is no worries that temps go too high if you use stock voltages when overclocking. Find first clock for the core and the for the mem.

edit: Crysis2 is very good for testing if the overclock is stable. After 10-15min you will see flickering or artifacts if clocks are too high or game will crash after 30-40min gaming or even earlier.
Edited by Paztak - 11/2/12 at 12:30am
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post #4 of 7
Quote:
Originally Posted by Paztak View Post

I also have same card.
For my card it really doesn't matter if I use boost - mode or not. Voltage is always 1.256 when card is under the tress and I can't give more voltage to the core because it's locked by bios. With that voltage I can hit 1185Mhz to the core and card is stable as a rock. I can run benchmarks at higher clocks (1220Mhz), but when gaming I'm using 1185Mhz just to make sure that I wont have any graphical issues or troubles with the performance.
Use HWinfo32 where you can monitor you gpu temps and voltages. Check there what is you stock voltage. I have learned from here OCN that 1.256 voltage is good voltage for 7970 and you shouldn't go much more higher of that. For memory I can adjust more voltage using Trixx, but I use stock voltage and stable mem clock for me is 1600Mhz. Vapor - X cooling makes very good job, so there is no worries that temps go too high if you use stock voltages when overclocking. Find first clock for the core and the for the mem.
edit: Crysis2 is very good for testing if the overclock is stable. After 10-15min you will see flickering or artifacts if clocks are too high or game will crash after 30-40min gaming or even earlier.

your stock voltage is not 1.256v , i thought the same before but no, the real voltage value for mine was 1.15v , use afterburner and it will tell you your real stock voltage....

if your card was stable @ 1185 core with 1.15v (mine does 60mhz less) then you have a good clocker card , use the newest sapphire trixx 4.4.0b and it will allow you to adjust the voltage mine is stable @ 1200core with 1.212v and 1800 ram with 1.625v
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Zero Ex 2
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Samsung 850 Pro 1TB SSD Western Digital 60EZRX 6TB 5400RPM HDD Samsung SH-S203N 20X LightScribe DVD RW Corsair H100i + 4x CM 120mm @ Push/Pull 
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Seasonic X-Series Gold 850W Cooler Master HAF 932 Gigabyte Aivia Krypton CM Storm Speed-RX S 
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post #5 of 7
Quote:
Originally Posted by invincible20xx View Post

your stock voltage is not 1.256v , i thought the same before but no, the real voltage value for mine was 1.15v , use afterburner and it will tell you your real stock voltage....

Hmm, really? GPUz and HWinfo32 wont show the real voltage?
Also in the Trixx Voltage sit in the value 1.256V. I believe that i have newest Trixx version, I can adjust more voltage from the Trixx but according HWinfo32 voltage doesn't go above 1.256 even if in the Trixx voltage is set to value 1.3V.

But if it is like you said, that's good news then smile.gif Tonight I will check the voltage using MSi afterburner.
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post #6 of 7
Quote:
Originally Posted by Paztak View Post

Hmm, really? GPUz and HWinfo32 wont show the real voltage?
Also in the Trixx Voltage sit in the value 1.256V. I believe that i have newest Trixx version, I can adjust more voltage from the Trixx but according HWinfo32 voltage doesn't go above 1.256 even if in the Trixx voltage is set to value 1.3V.
But if it is like you said, that's good news then smile.gif Tonight I will check the voltage using MSi afterburner.

believe me all those apps show you wrong voltage because they don't support the new vapor-x and the proof is no matter how much voltage you put through the gpu it will still report 1.256v constant
newest sapphire trixx version 4.4.0b NOT 4.3.0 !!!

only that version will let you adjust the voltage putting your gpu on a real 1.256 will get you 1200 core minimum i guess !
maybe 1250 because your chip looks more voltage efficient than mine !
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Zero Ex 2
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Samsung 850 Pro 1TB SSD Western Digital 60EZRX 6TB 5400RPM HDD Samsung SH-S203N 20X LightScribe DVD RW Corsair H100i + 4x CM 120mm @ Push/Pull 
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post #7 of 7
Quote:
Originally Posted by invincible20xx View Post

believe me all those apps show you wrong voltage because they don't support the new vapor-x and the proof is no matter how much voltage you put through the gpu it will still report 1.256v constant
newest sapphire trixx version 4.4.0b NOT 4.3.0 !!!
only that version will let you adjust the voltage putting your gpu on a real 1.256 will get you 1200 core minimum i guess !
maybe 1250 because your chip looks more voltage efficient than mine !

Uujea! Sounds good!

I will make sure that I use Trixx version 4.4.0b and use MSi afterburner for monitoring the voltage.
Thanks a lot for this information. + Rep for you man!
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Kingston SSDNow V300 480 GB SSD be quiet! Shadow Rock LP Windows 10  Acer 31,5" EB321 WQHD IPS 
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