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7970 Vapor-X Overclocking Problems.

post #1 of 14
Thread Starter 
I seem to have problems overclocking my vapor x the max clock on stock is 1160 on stock voltage and power control +20. However I cannot increase above this without it artifcating or shutting down not matter what voltage i used. e.g. I tried to overclcok to 1175 using 1300mv instead of stock 1200v and it artifacted and then shutdown.

I need help, is it a faulty GPU?

I got this gpu because of the cooler and thought I could overclock it at a high rate I was hoping for something like 1250-1300.
post #2 of 14
you seem to have gotten a poor overclocker. first try 1175 mhz at 1.225v . try a few runs of heaven 3.0 and 3d mark 11 for stability testing. monitor your core and vrm temps using gpu-z or hwinfo. keep core temps below 70c and vrm temps below 90c. setup a custom fan profile in msi afterburner or sapphire trixx (whichever you use for oc) . if you can't get it to run stable then try at 1.25v. if its still not stable you can safely conclude that your chip is a poor overclocker.
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post #3 of 14
Like raghu said, you probably just got a card not meant for any real overclocking.

I honestly wouldn't go as far as to return it though, overclocking it as much as you wanted to won't prove to be much better, Maybe 3-7 fps increase but that's it.
post #4 of 14
Which card do you have
post #5 of 14
Quote:
Originally Posted by The_chemist21 View Post

Which card do you have
It's sapphire

Vapor-X is their non-reference cooling solution.
post #6 of 14
Quote:
Originally Posted by PsYcHo29388 View Post

It's sapphire

Vapor-X is their non-reference cooling solution.

i think he meant 3gb or 6gb version.

i had the 6gb version, and i clocked mine @1200 on the core and 1700 on the memory using stock voltage. i could've pushed it a lil more probably, but i was satisfied with what i achieved. sucks that i don't have that card anymore tho
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post #7 of 14
Quote:
Originally Posted by PsYcHo29388 View Post

It's sapphire

Vapor-X is their non-reference cooling solution.

Quote:
Originally Posted by Killa Cam View Post

i think he meant 3gb or 6gb version.

*snip*

rolleyes.gif Sapphire 7970 Vapor-x 6gb is voltage locked and from my personal experience and others it will barely clock above 1200 while almost any other ( voltage unlocked ) 7970 will do 1200 as standard with and sometimes without a bump on V.
post #8 of 14
Quote:
Originally Posted by Killa Cam View Post

i think he meant 3gb or 6gb version.
doh.gif

I forgot they had the 6 gb cards.
post #9 of 14
Quote:
Originally Posted by The_chemist21 View Post

rolleyes.gif Sapphire 7970 Vapor-x 6gb is voltage locked and from my personal experience and others it will barely clock above 1200 while almost any other ( voltage unlocked ) 7970 will do 1200 as standard with and sometimes without a bump on V.
it is voltage locked, i believe my stock voltage was about .875 vddc.
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Lanu Moana
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post #10 of 14
Thread Starter 
Thanks guys, I can get 1200 and 1275mv and 1500 core clock really disappointed was expecting to hit 1250 easily!
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