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7970 OC - What is the common voltage used for 1200MHz ? - Page 2

post #11 of 27
Quote:
Originally Posted by psyside View Post

Guys, does voltage helps brake possible memory oc walls?

Example, if the memory does not go over 1400, (7950) @ 1.15 will it maybe go if u raise to 1.2v? and also is 1.25 safe for daily gaming (air) thanks.

memory voltage is from 1.5 - 1.6V unless you have unlocked it it can go up to 1.7V so if you up your memory voltage can help break the wall... are you using afterburner?
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post #12 of 27
Quote:
Originally Posted by stubass View Post

memory voltage is from 1.5 - 1.6V unless you have unlocked it it can go up to 1.7V so if you up your memory voltage can help break the wall... are you using afterburner?

Part my ignorance, but does this cards have memory voltage as well? redface.gif

http://imageshack.us/a/img28/2863/3dmk.jpg

I dont see it on the screenshot..

What i meant was does the basic voltage helps with memory overclocks.
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post #13 of 27
Quote:
Originally Posted by psyside View Post

Quote:
Originally Posted by stubass View Post

memory voltage is from 1.5 - 1.6V unless you have unlocked it it can go up to 1.7V so if you up your memory voltage can help break the wall... are you using afterburner?

Part my ignorance, but does this cards have memory voltage as well? redface.gif

http://imageshack.us/a/img28/2863/3dmk.jpg

I dont see it on the screenshot..

What i meant was does the basic voltage helps with memory overclocks.

see in afterburner, next to core voltage there is a drop down arrow, click on the to access memory voltage smile.gif
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post #14 of 27
Quote:
Originally Posted by stubass View Post

see in afterburner, next to core voltage there is a drop down arrow, click on the to access memory voltage smile.gif

REP+ the card is not mine, but anyway i plain to trade it for my average overclocker 680 DCII and get + 220 euros.

BTW, you want to tell me the every (unlocked) 7950 has memory voltage overclocking option? tongue.gif
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post #15 of 27
Thread Starter 
Quote:
Originally Posted by raghu78 View Post

Make sure your load temps are below 75c. stability testing should be done also with Heaven , BF3, Crysis 2 before you can confirm the clocks are stable. also it might not be worth pushing beyond 1200 Mhz if you can't keep the chip below 75c for long term stability .

Yes, thanks for bringing that up. I will test more in the coming days to get the optimized clock and voltage (and keep an eye on the temperature). Cannot wait to try Crysis2!
This is the first time I overclock a video card, definitely having a lot of fun. I have also set a custom fan profile in TriXXX. It keeps the card cool while gaming and benching. Temp is in the 50s running warcraft and in mid 70s running Furmark (fans ramp up to 80% though!).
Right now stability seems promising as I have been gaming on 1250/1725 for 3hours.
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post #16 of 27
Quote:
Originally Posted by psyside View Post

Quote:
Originally Posted by stubass View Post

see in afterburner, next to core voltage there is a drop down arrow, click on the to access memory voltage smile.gif

REP+ the card is not mine, but anyway i plain to trade it for my average overclocker 680 DCII and get + 220 euros.

BTW, you want to tell me the every (unlocked) 7950 has memory voltage overclocking option? tongue.gif

your welcome smile.gif

AFAIK all 7950's have voltage control for both core and memory. well i havernt come across one that doesn't..

BTW have you tried xcl / profiles method to unlock limits set by CCC??
http://www.overclock.net/t/1305260/unlocking-hd7970-core-speed-limit#post_18144356
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post #17 of 27
Quote:
Originally Posted by stubass View Post

your welcome smile.gif
AFAIK all 7950's have voltage control for both core and memory. well i havernt come across one that doesn't..

BTW have you tried xcl / profiles method to unlock limits set by CCC??
http://www.overclock.net/t/1305260/unlocking-hd7970-core-speed-limit#post_18144356

1.Fantastic!

2. I still don't have the card, but when i will ill make sure to unlock CCC as well thumb.gif

What is the average gains for memory voltage lets say the max safe for air, will i get like from 6000 maximum clock for (stock voltage) to 7000 with voltage, or it helps only a bit? what should i expect? thanks one more time!
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post #18 of 27
Quote:
Originally Posted by psyside View Post

Quote:
Originally Posted by stubass View Post

your welcome smile.gif
AFAIK all 7950's have voltage control for both core and memory. well i havernt come across one that doesn't..

BTW have you tried xcl / profiles method to unlock limits set by CCC??
http://www.overclock.net/t/1305260/unlocking-hd7970-core-speed-limit#post_18144356

1.Fantastic!

2. I still don't have the card, but when i will ill make sure to unlock CCC as well thumb.gif

What is the average gains for memory voltage lets say the max safe for air, will i get like from 6000 maximum clock for (stock voltage) to 7000 with voltage, or it helps only a bit? what should i expect? thanks one more time!

i am not sure with with mine memory speeds are read different, i worked out that 1500 was the same as 6000 as i found out when i switched from Asus GPU tweak to afterburner.. so in my terms i pushed mine from 1500 - 1725 and gained about 700 points in 3Dmark so it can make a difference overclocking your memory. i guess try it out and see smile.gif
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post #19 of 27
Quote:
Originally Posted by stubass View Post

i am not sure with with mine memory speeds are read different, i worked out that 1500 was the same as 6000 as i found out when i switched from Asus GPU tweak to afterburner.. so in my terms i pushed mine from 1500 - 1725 and gained about 700 points in 3Dmark so it can make a difference overclocking your memory. i guess try it out and see smile.gif

Thanks, rep +

BTW when did you buy your DCII?
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post #20 of 27
Guys, one more thing, where i live the 7950 they sell is 2x 6 pin, will this limit my oc? thanks.
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